Lost compression?? - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

Thread Tools Search this Thread
Old 06-15-2010, 02:03 PM   #11
Retired Senior Admin

Expert Gearhead
Danthurs's Avatar
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all

That'* a leak down test, a little different. compression test looks for peak compression, a leak down test looks for loss of pressure over time. Both are good tests.
Danthurs is offline   Reply With Quote
Old 06-15-2010, 02:39 PM   #12
Senior Member
Posts like a 4 Banger
boostedponty's Avatar
Join Date: Mar 2010
Location: Richfield
Posts: 103
Thanks: 0
Thanked 0 Times in 0 Posts
boostedponty is on a distinguished road

Iits called a wet and dry test test them all dry first.... Then try them after you squirted oil into the cylinder if the compression increases with the oil in there you have worn rings. If it stays the same its most likely worn valves. assuming your having compression problems in some cases.
boostedponty is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Intense Pistons - 9.5:1 Compression Sol Performance, Brainstorming & Tuning 1 01-20-2004 05:48 PM
How do Compression Ratios work? macho_mike21 Performance, Brainstorming & Tuning 6 01-11-2004 05:47 PM
Engine Compression egladman 1987-1991 2 01-04-2004 02:13 AM
Compression Testing Dylansdad 1992-1999 1 09-24-2003 07:44 PM
Stock Compression on 95 SSEi? Bassplayincrowe Performance, Brainstorming & Tuning 8 07-18-2003 06:19 AM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -4. The time now is 12:53 AM.

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.