Register free!

The Green Industry's Resource Center



 
 
Thread Tools   Display Modes
Prev Previous Post   Next Post Next
  #11  
Old 10-24-2012, 10:33 AM
Kewadin Kewadin is offline
LawnSite Member
 
Join Date: Aug 2012
Location: Traverse City,MI
Posts: 13
same problem

It's been a long time but there was a problem getting parts. First I took the head off and looked at the cylinder and valves. I thought the valves looked kind of burnt and I thought the cylinder didn't look so bad. But now I wish I had a good second opinion. Anyway , I hand ground the valves and am pretty sure I got a good seal when I was done and put new head gasket and fired it up....same problem. Won't even make 2000psi before engine is over worked. So I went back to the pump side and replaced valves and pressure seals, still same problem...I did a compression test and only get 60lbs max. But after a little more research, the motor is supposed to have an automatic compression release below 700 rpms ...So I went to harbor freight and bought a leak tester. I never used one before but following the instructions it tests in the green as far as percent air loss? ....I pulled the pump and I am going to try to get it tested at a pump shop to see if it can make 4k psi. I can rotate the pump shaft by hand . but it is stiff. The Kohler 15hp starts and sounds pretty good. Much easier to start without the pump ....I am going to try to get a rpm reading to see how fast it can go with no load and then try to get a reading under load.....If the pump can be tested and is good, I guess I'll have to open up motor and do cylinder and rings/piston....Has anyone heard of an auto de-compression getting stuck? What would the motor sound like? Any ideas or suggestions welcome, thanks.
Reply With Quote
 

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump





Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ©1998 - 2012, LawnSite.comô - Moose River Media
All times are GMT -4. The time now is 03:27 AM.

Page generated in 0.10942 seconds with 9 queries