lifted club cars - lifted ezgo
Home FAQDonate Who's Online
Go Back   Buggies Gone Wild Golf Cart Forum > Golf Cart Repair and Troubleshooting > Gas Club Car
Gas Club Car Gas DS, and Precedent golf cars



Post New Thread  Reply
 
Thread Tools Display Modes
Old 02-08-2020, 01:03 PM   #1
Copperman61
Gone Wild
 
Copperman61's Avatar
 
Join Date: Aug 2017
Location: Doradotown,Fl.
Posts: 154
Default kf82 rebuild problem (s)

So, I put a new piston and rod in the KF82 , tried to start it , no go. Did a compression test 35-40 psi - OUCH! I am pretty sure I got the timing right - I'm guessing possibly the head is warped ? I'm about ready to try and sell the engine and put a new engine of some kind in it. Any advice ?
Copperman61 is offline   Reply With Quote
Alt Today
BGW

Golf car forum Sponsored Links

__________________
This advertising will not be shown in this way to registered members.
Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum
   
Old 02-08-2020, 01:11 PM   #2
CP241
Nincompoop village idiot
 
CP241's Avatar
Club Car
 
Join Date: Apr 2018
Location: Michigan
Posts: 9,630
Default Re: kf82 rebuild problem (s)

Did you measure ring end gap? How did the cylinder look? Did you put in a new head gasket and torque it properly? What about valves? How do they look?
CP241 is online now   Reply With Quote
Old 02-08-2020, 04:21 PM   #3
Fairtax4me
Bonafide Nincompoop
 
Fairtax4me's Avatar
Club Car
 
Join Date: Dec 2015
Location: Charlottesburg Va
Posts: 8,987
Default Re: kf82 rebuild problem (s)

You put oil on the rings right? I like to use something heavy like 20w-50 on the rings, something that will stay on them and keep them lubed during break-in. Brand new rings don’t make high compression right away until they break in.
Could have something else going on like worn valves but I would squeeze some oil in there on top of the piston and make sure the compression comes up before taking it apart again.
Fairtax4me is offline   Reply With Quote
Old 02-08-2020, 06:41 PM   #4
Copperman61
Gone Wild
 
Copperman61's Avatar
 
Join Date: Aug 2017
Location: Doradotown,Fl.
Posts: 154
Default Re: kf82 rebuild problem (s)

ring end gap - new rings , cylinder was in very good shape , new head gasket torqued properly. I did something wrong .
Copperman61 is offline   Reply With Quote
Old 02-08-2020, 06:44 PM   #5
Copperman61
Gone Wild
 
Copperman61's Avatar
 
Join Date: Aug 2017
Location: Doradotown,Fl.
Posts: 154
Default Re: kf82 rebuild problem (s)

ahha, I will squeeze some oil on top of piston and check compression again a few times. Thanks for that tip !
Copperman61 is offline   Reply With Quote
Old 02-08-2020, 06:45 PM   #6
Copperman61
Gone Wild
 
Copperman61's Avatar
 
Join Date: Aug 2017
Location: Doradotown,Fl.
Posts: 154
Default Re: kf82 rebuild problem (s)

Yes, new rings properly positioned .
Copperman61 is offline   Reply With Quote
Old 02-08-2020, 08:19 PM   #7
CP241
Nincompoop village idiot
 
CP241's Avatar
Club Car
 
Join Date: Apr 2018
Location: Michigan
Posts: 9,630
Default Re: kf82 rebuild problem (s)

Quote:
Originally Posted by Copperman61 View Post
ring end gap - new rings .
You can't just go putting new rings in a cylinder and expect it to work. Not saying this is your problem, but you really gotta measure the end gap.and make sure it's in spec. If the cylinder is worn, new rings may still have too much gap to have proper compression.

Ring end gap is critical. Too much gap and compression will be low. Needs to be overbored and use oversize rings. Too little gap and it can ruin the cylinder very quickly.

How do the valves look? Did you inspect the valves and the seats? I know you cant really easily set valve lash in this motor, and lash spec is way up there (like .030 if I remember).

Pour a tablespoon of oil on the piston and check compression again. And make sure you hold the throttle wide open when you test it.
CP241 is online now   Reply With Quote
Old 02-09-2020, 09:33 AM   #8
Copperman61
Gone Wild
 
Copperman61's Avatar
 
Join Date: Aug 2017
Location: Doradotown,Fl.
Posts: 154
Default Re: kf82 rebuild problem (s)

Thanks CP , I did not check clearance on rings and did not rebore cylinder .Valves looked good along with cylinder wall - probably made a mistake assuming everything was good . I will put a Tablespoon of oil on piston and see if I can get the compression up. Appreciate it !
Copperman61 is offline   Reply With Quote
Old 02-10-2020, 10:53 AM   #9
Springbok
Photoshop Guy
 
Springbok's Avatar
Club Car
 
Join Date: Aug 2012
Location: Canal Fulton, OH
Posts: 3,845
Default Re: kf82 rebuild problem (s)

I may have a few extra cylinder heads laying around my shop if you confirm that's your issue. Here's hoping you just got the timing marks wrong.
Springbok is offline   Reply With Quote
Old 02-11-2020, 06:59 AM   #10
Copperman61
Gone Wild
 
Copperman61's Avatar
 
Join Date: Aug 2017
Location: Doradotown,Fl.
Posts: 154
Default Re: kf82 rebuild problem (s)

Thanks Craig , I'll let you know what I find out . I probably did a few things incorrectly.
Copperman61 is offline   Reply With Quote
Reply
Go Back   Buggies Gone Wild Golf Cart Forum > Golf Cart Repair and Troubleshooting > Gas Club Car


Thread Tools
Display Modes


Similar Threads
Thread Forum
91 KF82 Rebuild. Gas Club Car
kf82 hesitation problems after full rebuild Gas Club Car
Rebuild kit for a KF82 Gas Club Car
KF82 Carb. rebuild kit Gas Club Car
89 c.c. Rebuild kf82 need specs Gas Club Car


All times are GMT -5. The time now is 09:53 PM.


Club Car Electric | EZGO Electric | Lifted Golf Carts | Gas EZGO | Used Golf Carts and Parts

Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
This Website and forum is the property of Buggiesgonewild.com. No material may be taken or duplicated in part or full without prior written consent of the owners of buggiesgonewild.com. © 2006-2017 Buggiesgonewild.com. All rights reserved.