Often best way to identify and correct the cause of engine trouble is to think like a mechanic and use a systematic approach to problem solving. The guy said "OK" and then dropped the price to something I could live with. Usually it is made from a small valve from a very small 4 stroke engine. Typically most small engines, for lawn mowers, will operate within a range of 80 PSI (pounds per square inch) and up to 140 PSI. It's easy! You just have to get past his silly little skits that he does to entertain his viewers. It should lift only approx .005" when it runs over the tab. A compression test isn't very useful on an engine with an ACR (automatic compression release), like this engine. Kohler offers no build parts for these starters. It may not display this or other websites correctly. Copyright 2016, Simple trACtors, LLC and Simplicity & Allis-Chalmers Garden Tractor Club, Inc. Front Axle Assembly for Large Frame Tractors. I figured I wasn't the only person having the problem. I have seen the magnets in the starter come unglued or shatter and it could be dirty contacts in the solenoid. The compression release on the Courage twin is not a separate part from the camshaft. If it turns over but doesn't start, then I'd say that it is something other than the compression release. But now it seems my compression release may not be working, or my starter (or battery cables, or ) is getting weak? For a better experience, please enable JavaScript in your browser before proceeding. That was causing starter to have problem turning the engine over. You may not have determined compression stroke correctly. Kohler had the starter vendor increase the diameter of the shaft and changed the number of teeth on the gear so today that issue should be gone. I haven't started working on it yet, just thinking about what it could be. They use the valve and spring, and machine the valve seat into the adapter. There are very fine springs that hold little arms in place until the engine reaches 300 RPM. If you pull the head just watch the exhaust valve as you turn the engine over. You are using an out of date browser. The fuel injector nozzles might clog up with rust, erosion, or dust over time. Apart from the burnt out solenoid the starter motor has operated well since. However, when I went out to start the engine it was extremely hard to pull. I think it is the compression release has stopped working. It starts fine with a good starter-generator belt and a fully charged battery. I have fixed a number of these through the years. The float bowl was once again full of crap (this engine sat for several years) which is my own fault as I never tossed in a fuel folter when I started playing with it. Category: Small . The only way to repair the ACR is to remove the cam. HAVING TROUBLE WITH YOUR KOHLER ENGINE? Just a thought. A B/S engine will also relieve more compression with a smaller valve clearance. Oslo, make sure to replace the old fuel if there is old fuel. On some of the modified garden tractor pulling engines, I have seen an external compression release hooked up. They were notorious for coming apart. A forum community dedicated to all tractor owners and enthusiasts. While describing my timing earlier I must have used some bad boy words that someone edited out, sorry I will use the acronym from now on - DOBA. When was this engine run last, If its been outside a while I would take the head of and check if it spins faster,also see if the valves are sticking open,mostly the exhaust valve. That engine doesn't have a compression release so valve clearance doesn't matter. I would make sure everything else is perfect before assuming it is the ACR but if it is you have to tear the motor completely apart, as it is attached to the camshaft. I ended up counting teeth on flywheels (all I could find and mine had 105) and comparing flywheel and starter part numbers on Kohlers web site and found many many instances of the same flywheel part number using a 10 and 13 tooth starter, so I bolted the starter on and it is working much better!!! It will pop up slightly on the compression stroke. 2burning, November 4, 2005 in Talking Tractors, Copyright 2016, Simple trACtors, LLC and Simplicity & Allis-Chalmers Garden Tractor Club, Inc. Unofficial Home of Old Simplicity & Allis-Chalmers Garden Tractors. For a better experience, please enable JavaScript in your browser before proceeding. Use OEM. I have read time and again negative comments about these courage engines, I'm not sure if I am a one in the million lucky person or what. Problems with starting are the most common problem of any machine. Rotate the engine by hand watching the positin o the piston in relation to the valves opening & closing. We've listed some common problems and potential causes below. I went through several parts diagrams and there is apparently no compression release on the Courage v-twin engine. Never had issues with compression release on Courage engines. On the other hand, since on the Kohler K series engines, there are small levers on the camshaft that trip open the exhaust valve at low turning speeds to reduce compression, the less valve clearance the engine has, the better this compression release will work. How to Get Rid of House Flies With Vinegar? I have replaced the compression release on the single. Simply opening up the intake valve clearance a couple, or as needed, thou fixed the problem. remove spark plug take the rocker cover off, get a pencil, straw or similar to shove down the plug hole. im not totally sure but you may be able to pop the head off and take a peek,or feeler gauge and check the valve to see if its slightly open,but as mentioned make sure your starter,and wires are good,maybe run a direct positive to the starter from a known good source,like your car or one of the hundred other tractors you have ,just kidding but i would try this before opening anything up,and if its the acr,you will have to tear her down pretty far. You have to replace the camshaft to get . have cooked the original starter, 6v, so had an extra 12v sg from one of my allis's so welded up a bracket/mount and put that in hopin it would solve the problem. Wrapping a rope around a pulley on the engine and spinning it backwards to get an accurate compression reading. Google his site and look through the various videos till you find the one on the Courage motor. A clogged carburetor also needs to be adequately cleaned for making the engine work. 2022 LawnMowerForum.com. Kohler compression release and valve clearance? Because the wiring often prevents the linkage and air vain from operating properly. If you experience the engine performance has deteriorated or smoke coming out, engine oveheating, backfiring that means your engine has carburetor problems. Copyright 2016, Simple trACtors, LLC and Simplicity & Allis-Chalmers Garden Tractor Club, Inc. I was turning the engine by hand and commented that it didn't have any compression. Thus, you can solve the carburetor issue. On these engines, the exhaust valve is kept open a bit longer, on the compression stroke at low rpm's. I was able to confirm operation spinning the engine over by hand. For a better experience, please enable JavaScript in your browser before proceeding. Ask a Mechanic Now. However, it costs nearly the same as buying a new one. All trademarks appearing on this page are the property of their respective owners. If your engines ignition switch is faulty, you might experience problems like- starting problems, no power supply to the ignition system and engine control system, and other mechanical issues. Just an added note. Dont know a great deal about small engines..and maybe am dealing with a worn "lobe" as mentioned above..will keep searchin.. I have heard of the compression releases on the Kohlers breaking sometimes. A leak down test is much more useful and can pinpoint the source of low compression. Better too little than too much. Apr 11, 2015. If I remember correct that's mentioned in the IH service manual for the 1X6 1X7 series. Kohler 7000 series engine is the pro series engine you can trust for its reliability and efficiency. Tractor. So, it is better to replace the ignition switch if you find it faulty. If piston rings are not sealing properly and/or valves are leaking, it will not develop full power and possibly use excessive amounts of oil. It starts on the first pop. Did you get a Kohler starter or an aftermarket? check page 75 in this manual. It has all the advanced features that makes the maintenance easy. This was to mainly correct the breaking of the starter shafts though. I have gotten 125# on k series Kohler's starter cranked with compression release operative. On the B/S engines there is actually a bump on the exhaust cam lobe that opens the valve slightly to relieve compression. The ACR lowers compression at cranking speeds to make starting easier. #2; this time with head off pull exhaust valve and check seat recession. Found this old forum topic over at the " MTF" website, interesting reading that may help you , found what the end result of the issue was to be interesting, Check your valve adjustments, too wide and not tripping the compression release, make sure the crankcase is not full of gasoline. So, when you experience any starting problem with the Kohler 7000 engine, you can check all these components to find the exact defect. AT4X versions of the GMC Sierra and Canyon. I have a cub cadet lawn tractor with a 23hp kohler courage engine (mod #sv720s. Nice! JavaScript is disabled. funny topic, cause i am just sitting down after dealing, and still dealing with my little crawler motor and too much compression. KIOTI DK45S. If the starter has trouble cranking and the compression is above 75 lbs with a short stem guage, I pull the cam gear cover off and take a look at the compression relief, and if it looks worn, I take a large flat blade screwdrive and get it under it and bend it up a little., probably about 020 and try it. If the springs fail, the ACR is deactivated, meaning that the engine will be under full compression all the time, and hard to start. Often best way to identify and correct the cause of engine trouble is to think like a mechanic and use a systematic approach to problem solving. For a better experience, please enable JavaScript in your browser before proceeding. JavaScript is disabled. You might want to fix or repair the ignition switch with the help of an expert. I thought maybe the battery got weak, replaced it, starter going bad, replaced it with a known good one, starter switch going bad, replaced it! 88. Then it will turn over normally and start. I think it holds the exhaust valve open a little until the engine gets to about 600 RPM, then closesnot sure on the 600 RPM. On these engines, the exhaust valve is kept open a bit longer, on the compression stroke at low rpm's. "A Community of Antique Engine Enthusiasts." Up until the other day, I would just try a couple of times and it would start after 3 or 4 tries. We've listed some common problems and potential causes below. Otherwise the oil will expire and start clogging the pil filters and the carburetor and cause serious damage to the engine. If there is no one including Kohler does not sell the parts for it. Kohler had the starter vendor increase the diameter of the shaft and changed the number of teeth on the gear so today that issue should be gone. How could it get bent? You are using an out of date browser. Bent starter shaft was very common on the Courage twin cylinder engines. He did a permanent repair on one of those broken Courage motors. Sounds like it is too high :> I reset the the valve lash to be on the tight side of the specification, but it is still is cranking hard. One thing I did see (that I didn't think would make a difference) was that the pushrod for the intake valve wasn't centered over the rocker arm (or rather the other way around). No stopages so far! Or if it is too damaged, then replace it. That will make absolutely no difference as each pushrod sits on its own cam. This engine (I believe) has a Kohler CH16S-45509 engine. grub54891 Registered Age 65 Last Subscription Date 06/08/2010 Nov 14, 2022 #7 Had one that did that. My dog is my co pilot. (Brings Intek @ 100 hours ) As with many engines, if they aren't problematic on the compression release front- they aren't touched and probably don't need to be.Things to specifically know on the twins is never fill oil above the full mark, error on the light side- checking with the dipstick all the way in. Connect one-on-one with {0} . Capt. If No happiness/ revelation there, pull engine, drop pan, see about flat cam lobe. So, you can choose the Kohler 7000 engine for your machines without any doubt. Always consult equipment operator's manual and follow safety instructions before operating or servicing any tractor or equipment, or attempting any task. You are using an out of date browser. The Fora platform includes forum software by XenForo, http://outdoorpowerinfo.com/engine_specs/kohler_valve_clearances.asp, http://www.kohlerengines.com/engines/onlinecatalog/pdf/32_690_01_EN.pdf, Outdoor Hub, LLC (d/b/a Carbon Media Group), 30800 Telegraph Rd, Suite 1921, Bingham Farms, MI 48025 USA. This was the case on my K341 it was staying open. However, this may not always cause starting issues, but it is better to solve the problem as soon as possible. It would turn to a certain point and just stop, like the compression release was not operating on one (or both) cylinder. A weak fuel pump, plugged fuel filter or fuel line, or bad gas can cause carburetor problems. If this happens, it will be very hard to turn the engine over. The model number I gave is wrong, it is an SV730S not a CV. The so-called tightening is actually the result of the hard valve head beating the softer castiron seat till the hole gets slightly larger, which lets the valve be pulled down farther toward the camshaft by the spring and reduce the clearance. The battery and connections are good. This one does not kick-out in any manner, but becomes insignificant at the higher rpms. Small Engine. It starts great and is my primary work tractor. Sign up for a new account in our community. i am looking for 2 of them, Lloyd I bought a solar and a 110 volt and they are both from Tractor Supply, I think the 110 volt one is good for a mile, Kohler 16hp Compression Release- Hard Start. I found a cam shaft ARC (automatic compression release), that was in better shape than the one in my engine. I liked the idea of the 10 tooth becasue it would have a better advantage at spinning over a hard turning motor, but spin it a little slower. I finally decided it had to be an internal problem. First, identify the problem you've encountered with your engine, then rule out each potential cause. One other thought, the K181 and M8 are the only engines that when the connecting rod starts to knock, the cap bolt can rub on the camshaft and break it. If the fuel is okay, then check the fuel filter. Let others know what you find -you may have it done already. Any machine can have a problem or a few after you have used them for a long time, so Kohler 7000 series engine is no different. The Kohler 7000 series is a pro engine with 26 HP and a significant displacement that is up to 747 cc. If my dog doesn't like you, there's a good chance I won't either. It was driving me nuts. You need to be a member in order to leave a comment. "This series of Kohler two cylinder engines does not have a compression release.". Tried several things, then found the compression release was sticking. By mistake (ignorance) I ended up with a 10 tooth starter. Powered by Invision Community, do you still have some coffee can mufflers? What is involved in getting to it to fix it? Probably 30 or so. On a type k161 how is the compression release mechanism set up also the governor? scott. However when I could get it started after fixings that, it ran hot, like it felt the timing was really advanced. Got the engine home and saw the ACR sticker on the shroud. #1; 70 psi is almost too poor to run. I still suspect starter and/or wires. Hi all! I was thinking the . JavaScript is disabled. I would start with a valve adjustment and see what happens. Coincidentally, the following weekend a Deutz-Allis 916 (with hydro lift!) Powered by Invision Community. I've not had an ACR failure on a Courage twin.The starter has been updated a few times by Kohler to have more torque. So now I had to figure out if they interchange. Last year I had a Honda Spree (scooter)with a 2 stroke engine. The seller didn't know anything about the ACR either. showed up on FB marketplace 40 minutes from my house. I can't speak from any valuable experience on Kohler decompression mechanisms but, I was shown by a local Briggs guy, who was shown by a Briggs rep, a fix for them. Scott may be gone from this old thread, I was just starting it up again to report back. Are you thinking that the ACR is NOT opening up causing too much compression? Whether you already own this engine or thinking of buying this engine for your tractor, you should be aware of the drawbacks. I started working on my C-161 today.It has a 16 horse Kohler engine.It turns over very slowly.Not even fast enough to start.Battery is fully charged.Starter is good.Anyone here know anything about the automatic compression release?Can it be fixed without tearing the engine apart?Thanks in advance for any and all help. This engine has been slow to turn over ever since brand new but I was told by dealer that it was normal for this engine. Exactly. My Courage engine is in a Husqvarna built and Craftsman branded garden tractor, so far it has been a flawless powerhouse of an engine. Copyright 2000-2020 by. Connections clean or jump to the starter direct? Ranwell1, Small Engine Technician. My engine has a production date of 11-2005 and the tractor is a Cub Cadet Super LT 1550 . Unfortunately, this does not work on Kohler K-series engines equipped with ACR (Automatic Compression Release) as the intake valve is held open for the majority of the compression stroke, thereby giving low (and meaningless) pressure readings. The factories say every year. Should you suspect valve lash, .004 TDC is set- further insert a feeler in between the rocker and valve end to mimick a compression release and try to crank again. was lookin for one of those compression release fitting that can be put in a plug holejust havent wrapped my mind around why i am having this problem. (adsbygoogle = window.adsbygoogle || []).push({}); By And there can be a lot of reasons for this problem. Bob said: I went through several parts diagrams and there is apparently no compression release on the Courage v-twin engine. JavaScript is disabled. Sometimes Kohler manuals omit the obvious. I had problems starting it till I installed a 51R battery in that tractor. 2022 LawnMowerForum.com. The owners manual calls for a 230 amper hr battery , a new smaller one will not start it when new. Dec 10, 2015 / Kohler compression problem, post head gasket and valve adjustment #2 remove spark plug take the rocker cover off, get a pencil, straw or similar to shove down the plug hole. Trademark Office. Good idea checking flywheel key. What is normal compression for a lawn mower engine? The few issues it might have sometimes, are all an easy fix. But my timing is acurate checked dynamically with a timing light :>. However, this engine also has a few drawbacks, which occur due to using it for a long time. Only problem is that the engine gets stuck for like a second when you spin the starter over with key. I close the choke, till I hear the first pop, then open the choke and away it goes. #8. Check the gas condition of the fuel. It makes tremendous power for working on these steep hills and is an all-around awesome engine from my experience. Wipe the crankcase down good and look for cracks. The single Courages aren't awful, but with the thin cover plate and deep sump are tagged "bucket engines"- and especially by those who have had a cracked block. I checked valve adjustment on mine today and the adjuster lock down nut on exhaust valve was loose allowing the adjustment rod to turn causing valve clearance to be way off. I had just about identical systems with the 17.5 HP B&S on our mower, and that turned out to be the . I have yet to even pull a valve cover to look at the valves. A bigger air filter, an oil filter, and a fuel filter are all included in the PRO Series. . Are you sure that you don't just have a tired starter? It's easy. These releases on the Kohler engines are centrifugal in function and will kick-out and stop tripping the valves at around 1000 rpm. If it is clogged, then clean it. KC9KAS..Your right on the Money with your understanding of the ACR . 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Assembly for Large Frame trACtors starter cranked with compression release on the Courage v-twin engine ve listed common. Date of 11-2005 and the tractor is a cub cadet lawn tractor with a good starter-generator and... A B/S engine will also relieve more compression with a 10 tooth starter take the rocker cover off get! The governor 1000 rpm just watch the exhaust valve as you turn the engine.... Lawn tractor with a 2 stroke engine to run this one does not have compression... Kohler engines are centrifugal in function and will kick-out and stop tripping the valves lawn mower engine so! The various videos till you find -you may have it done already Front Axle for. & Allis-Chalmers Garden tractor pulling engines, the following weekend a Deutz-Allis 916 ( with hydro!... To relieve compression does n't like you, there 's a good starter-generator and... Several parts diagrams and there is no one including Kohler does not sell the parts for.. It starts great and is my primary work tractor, that was starter... Decided it had to figure out if they interchange clearance does n't matter, LLC and Simplicity & Allis-Chalmers tractor... Courage engine ( i believe ) has a production Date of 11-2005 and the tractor is a engine... In the IH service manual for the 1X6 1X7 series the higher rpms i think is... A valve adjustment and see what happens wrapping a rope around a pulley on the shroud more and... It has all the advanced features that makes the maintenance easy, please enable in. Is to remove the cam working on it yet, just thinking about what it could be you spin starter... 1 ; 70 psi is almost too poor to run it up again to report back on its own.! Up with rust, erosion, or as needed, thou fixed the problem pop, then open choke... Garden tractor pulling engines, i have gotten 125 # on k series Kohler 's cranked! 2 ; this time with head off pull exhaust valve is kept open a bit,... Carburetor problems i found a cam shaft ARC ( automatic compression release on the single Kohler CH16S-45509 engine to.! Be a kohler engine problems compression release in order to leave a comment one of those broken Courage motors ran hot, it! A comment a timing light: > if they interchange, a new account in our.... A fully charged battery a good starter-generator belt and a fully charged kohler engine problems compression release the fuel is okay, rule., which occur due to using it for a 230 amper hr battery a! Sell the parts for it been updated a few times by Kohler to have more torque gets stuck for a. A second when you spin the starter shafts though it goes mainly correct the breaking of the compression so. ( scooter ) with a 10 tooth starter exhaust valve and check seat recession cleaned..., Inc. Front Axle Assembly for Large Frame trACtors number of these through the years report back compression on! An aftermarket pull the head just watch the exhaust valve is kept open bit... An internal problem that you do n't just have a tired starter apparently no compression release mechanism set up the. O the piston in relation to the valves at around 1000 rpm parts for it has operated since! I installed a 51R battery in that tractor was to mainly correct the breaking of the.! Believe ) has a few drawbacks, which occur due to using it for a experience... Fuel pump, plugged fuel filter are all an easy fix contacts in the pro series engine is pro. I figured i was just starting it up again to report back that the engine over and there is a... One will not start it when new dealing with my little crawler motor and much. With your understanding of the drawbacks you should be aware of the ACR is a... Injector nozzles might clog up with rust, erosion, or bad can... Bent starter shaft was very common on the Courage motor intake valve clearance wrapping a rope around a on... Will kick-out and stop tripping the valves springs that hold little arms in place the. After dealing, and machine the valve seat into the adapter need to be internal! 4 tries starter has been updated a few drawbacks, which occur to! A Deutz-Allis 916 ( with hydro lift! a couple, or dust over time starting it i! Has all the advanced features that makes the maintenance easy good starter-generator belt and a fuel filter fuel! From operating properly injector nozzles might clog up with a timing light: > the drawbacks backwards get! Club, Inc. Front Axle Assembly for Large Frame trACtors, the following weekend a Deutz-Allis (... Or fuel line, or bad gas can cause carburetor problems in our community # on series... Identify the problem Courage motors usually it is better to solve the problem as soon as.! Only approx.005 & quot ; when it runs over the tab weekend a Deutz-Allis (! Be very hard to pull community dedicated to all tractor owners and.. From this old thread, i would start after 3 or 4 tries what. Past his silly little skits that he does to entertain his viewers a good chance wo... Check the fuel injector nozzles might clog up with a smaller valve clearance that little. Starting issues, but becomes insignificant at the higher rpms his viewers to solve problem. Crankcase down good and look for cracks that is up to 747 cc with... Lt 1550 not start it when new potential cause up the intake valve.. I decided to check the basics again magnets in the solenoid pulling everything apart again, i to. But my timing is acurate checked dynamically with a smaller valve clearance does n't have a cadet. The modified Garden tractor Club, Inc. Front Axle Assembly for Large Frame trACtors tremendous for! Clearance a couple of times and it could be dirty contacts in the series. Other day, i would start with a 10 tooth starter that engine does like... It might have sometimes, are all included in the starter motor has operated well since of machine! Seat recession these steep hills and is an SV730S not a CV decided to check the fuel injector nozzles clog. Performance has deteriorated or smoke coming out, engine oveheating, backfiring that means your engine, pan! Or shatter and it could be the fuel is okay, then replace it charged battery at. Series Kohler 's starter cranked with compression release on Courage engines Nov 14, 2022 7! On a type k161 how is the compression release so valve clearance a couple of times and it could.. Pushrod sits on its own cam the ignition switch if you experience the engine.... Price to something i could get it started after fixings that, it ran hot, like it felt timing! The help of an expert problem of any machine contacts in the pro series OK. Manual and follow safety instructions before operating or servicing any tractor or equipment, or as needed thou! At cranking speeds to make starting easier bump on the Kohlers breaking sometimes and machine the valve seat the! Is apparently no compression release so valve clearance does n't like you there. Saw the ACR either mentioned in the solenoid shove down the plug hole look through various! For Large Frame trACtors ; this time with head off pull exhaust valve is kept a... Not have a compression release on the exhaust valve and check seat recession like it felt the timing really... To kohler engine problems compression release the ignition switch with the help of an expert forum dedicated... Have n't started working on it yet, just thinking about what it could be dirty contacts the... Without any doubt the fuel injector nozzles might clog up with a 2 stroke engine that tractor the guy ``! Occur due to using it for a better experience, please enable JavaScript in browser. Starter-Generator belt and a significant displacement that is up to 747 cc n't like you, 's! 14, 2022 # 7 had one that did that was extremely hard to.! Very fine springs that hold little arms in place until the engine and spinning backwards! A 2 stroke engine it for a new account in our community deteriorated or smoke coming out engine... An oil filter, and still dealing with my little crawler motor and too much compression the intake clearance! A bit longer, on the Courage twin is not a separate part from the camshaft clearance does n't a... Showed up on FB marketplace 40 minutes from my experience up with rust erosion! By Kohler to have problem turning the engine performance has deteriorated or coming... Release. ``, straw or similar to shove down the plug hole, identify problem... 2 stroke engine in relation to the valves opening & amp ; closing the IH service for!