What is the compression rate for a 17 hp kohler engine

SOURCE: 15 HP OHV Kohler engine with no compression

Have you checked for a bad head gasket?

Check the intake valve springs or the intake valve shafts to be sure they aren't stuck open. Another cause could be excessive carbon build up on the intake valve causing them to not seal.

If you've gone this far, you could try a compression leak down test. If you still have the push rods out, you can use or get an adapter that will allow you to pressurize the cylinder(s) with air by removing the spark plug. Apply 70-80 psi air directly to the cylinder (the cylinder may go to BDC (bottom dead center) but if you don't have any push rods, the valves can't open.

Listen carefully - if you hear air leaking out of the carb, it's a bad intake valve. If you hear air from the exhaust, it's an exhaust valve. If you hear air from the crankcase breather, it's piston rings.

SOURCE: Kohler Command 12.5 OHV engine on John Deere STX

Have you tried pouring a little fuel into the plug hole and try for start? If it runs for a short time, you have fuel delivery problems. Check the fuel filter for plugging. Look under the carburetor bowl for a small solenoid that commonly sticks in one position. I'm not aware of an automatic compression release on these engines. As this is a 4-stroke engine, it's possible that one of the valve clearances has closed up during use. Check this with the piston at top-dead-center on the compression stroke. Hope some of this helps!

Doctor PC

• 7733 Answers
• Posted on Oct 06, 2010

SOURCE: need wireing diagram for kohler

Try here -Link.

SOURCE: how much compression should a kohler 25 hp engine

hi there

there are no published compression limits for kohler

the prefered method is to have the cylinders leak tested , because of the decompressor action built in while trying to compression test

but off the top of my head most machines would run best with a minimum of 100 psi or better
given that these have a compression ratio of 9:1

you could work it out

9:1 X 14.7 PSI ( 1 amtmosphere ) @ sea level = 131.00 psi

compression ratio = swept cylinder volume + clearance volume (@ tdc) divided by clearance volume

here is web site for obtaing service manual
http://www.kohlerplus.com/main_frame.asp

login as guest
select command pro twin -ch/cv 17-26

go to service manuals , select sm 24-690-07 file is 8.82 Mb and double click it and save a copy to your hard drive

cheers hope it helps

pauly46

SOURCE: I have 16 hp Kohler engine with a compression release not working,help.

i have a Kohler 16 Magnum opposed cylinder engine and it wont crank over with the spark plugs in it,battery and starter are both good,its an aluminum engine and i have seen several of the Kohler engines break the automatic compression release on the cam gear and they seem to lock up while trying to start,pull the plugs and the crank fine,Kokler is the most expensive engine i have seen and their parts are outrageously priced,old Kokler was a good engine,newer ones in my opinion are junk,i work at a small engine shop,i have seen new Kohler engines with a broken ACRs,i work at a second job,we got a new supervisor that worked for Kohler before her came to our plant,he said he worked customer service at Kohler and he heard complaints constantly from people using their engines and the returns were out the roof on their engines,what im saying is i wont ever but another Kohler unless itsm an old one,Thanks Tommy