Diesel Discussions Only diesel topics should be posted here.

1983 300SD low compression #3? Next steps?

  #1  
Old 12-01-2015, 07:56 PM
Junior Member
Thread Starter
Join Date: Dec 2015
Posts: 1
Default 1983 300SD low compression #3? Next steps?

1983 300SD, All cylinders fine escept #3. Cold compression about 80. Warm compression about 200. Car only has 106k on it.

The motor shakes at idle, and nails loudly, but smooths right out at 1,200 rpm perfectly.

I switched out 3 known good injectors on that spot, and no change. (well, of course it wouldn't change as I show low compression).

Would a leakdown test show me what I got before I take the head off and look? How much for a shop to do that?

AGAIN, the craziest part is that it has all the power during normal driving, just that bucking at idle due to that compression. I'm NOT thinking this is fuel related due to the compression (but I WOULD if compression was ok).

Ideas?
 

Last edited by nehuge; 12-01-2015 at 08:07 PM.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
lombrozo
Diesel Discussions
1
05-27-2010 07:16 PM
raffo
Mercedes E Class
0
06-10-2009 12:01 PM
DieselRepair101
General Tech
0
04-24-2009 07:25 PM
libbybapa
Diesel Discussions
2
07-05-2006 03:23 PM
rkpatt
Diesel Discussions
1
02-06-2006 09:47 AM


Thread Tools
Search this Thread
Quick Reply: 1983 300SD low compression #3? Next steps?


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.