[pennsdalerepair]

Hi everyone...

New to this forum--looks GREAT!! I'd like a little input here.

I've got a Kohler CV730S that has a complaint of using excessive oil and fouling one cylinder only. Compression is about 200 psi on each cylinder; oil is correct at 10W30 and at right levels. No leaks visible; customer says it used about a pint recently when mowing about 3/4 acre-level ground. Visible smoke from exhaust--blue. Customer is very anal about service and keeping unit clean. RH plug oil fouled--LH good.

Just got it in tonight--haven't started a teardown yet but I'm thinking a possible valve stem seal or crankcase breather.

Any other thoughts out there? All input appreciated!

Regards to all...

Tom

 

[Mark / Ohio]

Welcome Tom! This might be something to check as well:

http://www.mymowerparts.com/pdf/Kohler_Miscellaneous_Manuals_and_Bulletins/354236314.pdf

 

[fixer]

sounds as if you may have a broken oil ring.
fixer

 

[gbarmore]

I have the same motor in a craftsman Garden Tractor and it's doing the same thing after just 300 hours. Motor uses about a quart of oil in 2-3 hours or less, it's pretty much unbearable to ride. Took it in and the shop said it's likely a bad ring and the motor is pretty much done. Sending it in for a rebuild is an option, albeit a spendy one at ~$1000. New motor is $1,500. I did notice that their was a lot of smoke coming out of the right side tube that comes from the OHV cover and into the breather, not sure what that means as I am not a mechanic. Motor runs extremely hot too, burns my grass if I idle it in one spot for more than 20-30 seconds. Wife was mowing one day and kept stopping to change the songs on her Ipod and had about a dozed burnt out patches the next day...... Sweet.

If you happen to send it in or figure out what's happening with your's I'd love to hear about it. I figured I'd get at least 10 years out of my unit and only got 5 seasons.....