| |
Labor Day Putting down your wrenches or time for
MORE wrenching? 
Plenty of places to share. | | Click on image for the lowdown. 
====
| | | Forums66 Topics128,010 Posts1,055,299 Members48,419 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | 
#19808 05/19/2005 12:37 AM | Joined: Apr 2003 Posts: 27 Apprentice | | Apprentice Joined: Apr 2003 Posts: 27 | What is semi normal compression for s 216 chevy with about 100,000 miles? Mine averages 100lb for each cyl. Thanks
rrf
| | |
#19809 05/19/2005 6:28 AM | Joined: Jan 2005 Posts: 52 Member | | Member Joined: Jan 2005 Posts: 52 | 50 chevy, The only thing I could find in my manuals is the compression should be 110 psi or greater with each cylinder being within 5 to 10 psi of each other. How does your engine run with the compression at 100 psi, does it smoke or use oil and if not, run it till it dies.
Jamo | | |
#19810 05/19/2005 1:07 PM | Joined: Feb 2004 Posts: 29,742 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,742 | Compression pressure isn't as important as uniformity between cylinders. If you use 3 different compression gauges, it's likely you'll get 3 different readings. I like to see numbers in the 85-to-125 pound range, with no more than 10% variation between cylinders. If you get a major bump in pressure when a little oil is added to the cylinder, you're headed for piston ring problems soon. If a low cylinder doesn't come up when a tablespoon or so of oil is added, the problem is probably valve-related.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | |
|
|
| |
