The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain

Web 67-72chevytrucks.com


 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 04-03-2017, 11:16 AM   #1
cshanek
Registered User
 
cshanek's Avatar
 
Join Date: Mar 2017
Location: Colorado Springs, Co
Posts: 35
Exclamation Burning oil and compression test results

Good localtime forum friends,

I created a post a couple weeks back (http://67-72chevytrucks.com/vboard/s...d.php?t=733313) regarding my 64 C20 (283), and how she appears to be burning oil to the tune of a quart every 50 miles or so. I performed a compression test this weekend on a cold-ish engine and here are my results:

1. 120 PSI - 6 revs
2. 125 PSI - 6 revs
3. 125 PSI - 6 revs
4. 130 PSI - 5 revs
5. 125 PSI - 5 revs
6. 125 PSI - 5 revs
7. 130 PSI - 6 revs
8. 120 PSI - 5 revs

I performed the above test with a couple of squirts of oil added to the chamber, and the numbers were similar, though it often took 8-10 revs to max out pressure.

So my question is, do these number make sense if I am burning oil? I thought for sure I would be low on a cylinder or too, but these numbers look pretty awesome. I have white smoke coming out of my pipe when I drive her around and I do not seem to be leaking a lot of oil. What could be the culprit?

I learned this weekend that I def have matching numbers, and I know that doesn't matter so much for old trucks, but I would like to fix my stock 283 instead of throwing in a 350 crate.

Last edited by cshanek; 04-03-2017 at 12:25 PM.
cshanek is offline   Reply With Quote
 

Bookmarks

Tags
burning oil, compression test


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 -4. The time now is 03:21 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com