Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!

Compression test , bad engine ?

Thread Tools
 
Search this Thread
 
Old 08-31-2016, 03:18 PM
  #1  
Junior Member
Thread Starter
 
kooga's Avatar
 
Join Date: May 2007
Location: Westcoast Sweden
Posts: 47
Likes: 0
Received 0 Likes on 0 Posts
Car: Camaro IROC-Z 89
Engine: 28xxx miles
Transmission: TH700
Axle/Gears: 2.77 BW
Compression test , bad engine ?

How would an engine behave if the left bank showed 190-195 psi , and the right 175-180 ?
Would it make the engine feeling rough when accelerating ? Newly built engine (3500 miles) .


I did the test engine cold , and am about to tear it apart due to cracked head or bad headgasket , (airbubbles in the cooling system) .
Leakdown test didnt reveal any bubbles .
Old 08-31-2016, 05:15 PM
  #2  
Supreme Member

iTrader: (1)
 
sofakingdom's Avatar
 
Join Date: Sep 2005
Posts: 26,050
Received 1,672 Likes on 1,269 Posts
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Compression test , bad engine ?

If it's that consistent, then more likely, you have 2 different head castings, with different chamber sizes. Check the casting numbers.

I doubt it would be noticeable while driving though.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
johnny89345
Tech / General Engine
7
05-30-2009 09:51 PM
omcrider
Electronics
7
11-21-2003 10:58 AM
BOTTLEDZ28
Tech / General Engine
7
08-01-2003 02:13 PM
sancho
Tech / General Engine
1
12-13-2002 01:10 PM
sunbound
Tech / General Engine
3
09-27-2001 02:30 PM



Quick Reply: Compression test , bad engine ?



All times are GMT -5. The time now is 05:27 PM.