Go Back   The Supercar Registry > General Discussion > Chevrolet


 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
  #8  
Old 08-18-2015, 08:38 PM
SuperNovaSS SuperNovaSS is offline
Yenko Contributing Member
 
Join Date: Sep 2001
Location: Santa Cruz, CA
Posts: 6,562
Thanks: 392
Thanked 700 Times in 364 Posts
Default Re: Trying to Decide Value of my 1969 Z/28

My diagnosis is you need a new mechanic. If the engine has an erratic vacuum signal you could have a vacuum leak somewhere. An intake valve being to tight will also cause this symptom since it will produce a vacuum leak to the intake which will cause 4 cylinder to be effected on a dual plane intake and all 8 on a single plane. Silly question, has the PCV valve been replaced? It sounds like you need to start with the basics like a compression or leakdown test. Also, finding the source of the oil getting into the intake may point you in the right direction.


I hope you can get it sorted out.

Jason
Reply With Quote
 


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


All times are GMT. The time now is 08:12 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.