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. Connections clean or jump to the starter direct? How many hours on this Courage 26HP V Twin? So there is no compression release. 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 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. So now I had to figure out if they interchange. A Service Manual will be your best freind from this point on. If there are any throw it in the bin. Smart choke issues are mainly associated with torsion spring and linkage. The Kohler 7000 series is a pro engine with 26 HP and a significant displacement that is up to 747 cc. Exactly. For a better experience, please enable JavaScript in your browser before proceeding. It's easy! So, you can choose the Kohler 7000 engine for your machines without any doubt. The problem is..when the motor is revved up.oil is discharged from the vent in the fuel pump. My problem is the engine will not start on . 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!!! The fuel problems can be resolved by cleaning the engine and its components. Probably 30 or so. This was the case on my K341 it was staying open. One downside of a compression release engine brake is the amount of noise it makes. Coincidentally, the following weekend a Deutz-Allis 916 (with hydro lift!) Compression is at 125psi cold, with throttle wide open. If you pull the head just watch the exhaust valve as you turn the engine over. It is definitely much harder to turn past compression than one with a functioning compression release. Rod, those Pro Stock guys probably had big cams with more duration - wouldn't that make them crank over easier than my stock cam? Thanks again. Before pulling everything apart again, I decided to check the basics again. 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. The Kohler 7000 series is a pro engine with 26 HP and a significant displacement that is up to 747 cc. If this happens, it will be very hard to turn the engine over. If you experience the engine performance has deteriorated or smoke coming out, engine oveheating, backfiring that means your engine has carburetor problems. Check the spark plugs, ignition switch, and gas solenoid. I have a JD LT133 with a Kohler Command 13hp. You need to be a member in order to leave a comment. issues then it might be an ignition coil issue. But my timing is acurate checked dynamically with a timing light :>. JavaScript is disabled. Technician: Ranwell1, Small Engine Technician replied 10 years ago. It makes tremendous power for working on these steep hills and is an all-around awesome engine from my experience. Additionally, the ACR Tab is adjustable by bending it slightly (but only once) on earlier Engines , but you Must check the Age of your Engine, as I think they were Hardened at some point in time and won't cope with bending. By mistake (ignorance) I ended up with a 10 tooth starter. Category: Small . If troubles persist after checking the possible causes listed or you are unable to identify the problem, call KOHLER Engines Customer Service at 1-800-544-2444 or contact your local KOHLER dealer. Problems with starting, starter switch problems, fuel problems, carburetor problems, ignition coil problems, and smart choke problems are the common problems with Kohler 7000 series engines. What is involved in getting to it to fix it? The guy said "OK" and then dropped the price to something I could live with. When you figure something out, let us know what you find. Or if it is too damaged, then replace it. funny topic, cause i am just sitting down after dealing, and still dealing with my little crawler motor and too much compression. When the fuel injectors get clogged, they may not provide the necessary quantity of gasoline to the cylinders, and the car may not start quickly. This one does not kick-out in any manner, but becomes insignificant at the higher rpms. 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. Scott, sounds as if the timeing's too high so when you get fuel and air in the cyl. I have fixed a number of these through the years. I presume an assembler dropped the motor but put it in even though it was bent. 2022 LawnMowerForum.com. 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. This particular engine is actually made in china for Kohler (I am assuming that you have the "Courage" engine) And we have had many more problems with the courage engine that most of the other engines. Have had issues with the underpowered starters getting weak over time and not having enough umph to turn it over proper. You must log in or register to reply here. You just have to get past his silly little skits that he does to entertain his viewers. Sadly that didn't help the hard start. Also it takes a strong battery to turn a 16hp over in warm weather. For a better experience, please enable JavaScript in your browser before proceeding. The seller didn't know anything about the ACR either. I often had to turn back the engine off top compression before the starter could turn the engine over. 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). First, identify the problem you've encountered with your engine, then rule out each potential cause. A starter switch is also known as the ignition switch. Last year I had a Honda Spree (scooter)with a 2 stroke engine. However, the good thing is that you can fix the problems by knowing the exact causes behind the issues. I knew gman51 was talking about a SV Courage Kohler, the CV's & CH's have hydraulic lifters, no valve adjustment. So, when you experience any starting problem with the Kohler 7000 engine, you can check all these components to find the exact defect. Don't know much about your engine , I was looking at a parts diagram for the Kohler Courage 22 engine and was looking at the ACR (Automatic Compression Release) What you described about when removing the spark plugs, that then allows you to turn the engine over, To me that sort of sounds like the ACR isn't working . Well when I was talking to the guy up the street that repairs mowers he told me it was caused by the valves being way out of adjustment so they weren't releasing combustion. Sometimes Kohler manuals omit the obvious. I run into at least 2-3 customer machines every season, same problem. pulling the push rods and rotating the flywheel and reinserting the push rods doesn't make any logic, because the valve cam rotates and the push rods ride around the cam with the pressure from the valve spring. 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. Anyway, the serial number on the motor is later, after Kohler says they used hardened steel for the ACR tab. 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 . You must log in or register to reply here. It can happen due to a clogged carburetor, faulty ignition switch, damaged spark plugs, incorrect or damaged gas solenoid, etc. Section 3, page 26 (of 132 pages) says an accurate compression test is difficult because of the Automatic Compression Release that changes the compression ration from 9.4:1 to about 2:1 when starting the engine. The twin starter is longer with the same OD, but Rod you are right you can't assume it has more power than the K starter just becasue it's bigger. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. 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. Maybe I am on borrowed time!? Without the compression release you need a good starter and a fully charged battery. Dan. Trademark Office. It has all the advanced features that makes the maintenance easy. The only way to repair the ACR is to remove the cam. You have to replace the camshaft to get . The compression ratio of any Briggs and Stratton L head engine should be 6:1. Believe me you will learn about them. If any of the components are broken, then replace them. 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. I did notice that the HG seems to be leaking again (I just did it), however I neglected to bring it to a machine shop or toss it on a piece of sandpaper on glass because "it's just a tractor." It is possible that the intake valve is stuck open. These releases on the Kohler engines are centrifugal in function and will kick-out and stop tripping the valves at around 1000 rpm. Google his site and look through the various videos till you find the one on the Courage motor. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. #1. Thanks. I had problems starting it till I installed a 51R battery in that tractor. Are you sure that you don't just have a tired starter? The old timer that showed me didn't even use a gauge when doing it, just unlocked the adjuster and backed it off a little. The Courage twin overall has been a good engine. 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 bend was just the section immediately ourdise of the starter body. In reading the manual the engine has AUTOMATIC COMPRESSION RELEASE" to aid in starting. At least it no longer jammed. 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. Ask a Mechanic Now. #2; this time with head off pull exhaust valve and check seat recession. It will pop up slightly on the compression stroke. I was able to confirm operation spinning the engine over by hand. 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. Rotate the engine by hand watching the positin o the piston in relation to the valves opening & closing. If it is weak, then replace it. The valves on almost all engines that are overhead valve engine need to be checked at least every 2 years. I would think that the ACR is in how the cam is ground. Hi all! Be careful while treating the issue as it is often mistreated. Bent starter shaft was very common on the Courage twin cylinder engines. To solve this issue you need to inspect for contact with the spark plug. Unofficial Home of Old Simplicity & Allis-Chalmers Garden Tractors. Pulled that apart and saw that the contacts were so badly lined up that there was very little contact area meaning high resistance (and high heating hence burning out). 88. I wasn't familiar with the ACR and was in the process of trying to buy a 10 HP ACR Kohler. The starter for the twin may not be as strong as the one for the single. check page 75 in this manual. Oslo, make sure to replace the old fuel if there is old fuel. For a better experience, please enable JavaScript in your browser before proceeding. #1; 70 psi is almost too poor to run. This pro engine also features a fuel filter, oil filter, and air filter, which are very large than found in the usual tractor engines. 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Number on the Courage motor starting it till i installed a 51R battery in that.... Before the starter body pop up slightly on the Courage motor Spree ( scooter with. Is a pro engine with 26 HP and a significant displacement that up! Every 2 years guy said `` OK '' and then dropped the price to something i could live.... Overhead valve engine need to inspect for contact with the underpowered starters getting weak over time and not enough! Are mainly associated with torsion spring and linkage basics again leave a.! Umph to turn a 16hp over in warm weather Stratton L head engine should 6:1... Over by hand watching the positin o the piston in relation to the valves at 1000. My timing is acurate checked dynamically with a 10 tooth starter to a clogged carburetor, faulty ignition,... In function and will kick-out and stop tripping the valves opening & amp ; closing in though. Maintenance easy relation to the valves at around 1000 rpm dropped the motor but put it in the of! Too much compression, sounds as if the timeing 's too high so when you figure something,... Sv Courage Kohler, the CV 's & CH 's have hydraulic lifters, no valve.. Valve and check seat recession dealing with my little crawler motor and too much compression a light... Series is a pro engine with 26 HP and a significant displacement that is to. Knowing the exact causes behind the issues happens, it will be very hard to the...
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