Automotive Forums .com - the leading automotive community online! Automotive Forums .com - the leading automotive community online!
Automotive Forums .com - the leading automotive community online! 
-
Latest | 0 Rplys
Go Back   Automotive Forums .com Car Chat > Chevrolet > Nova
Reply Show Printable Version Show Printable Version | Email this Page Email this Page | Subscription Subscribe to this Thread
 
Thread Tools Search this Thread
Old 07-04-2011, 10:55 AM   #1
big dwag
AF Regular
 
Join Date: Feb 2004
Location: clute, Texas
Posts: 129
Thanks: 0
Thanked 0 Times in 0 Posts
Blow by on motor

I have a 350 stock motor, it was in my 77 nova i tool it out and put it in my 87 camaro. After a couple of weeks it started to leak from the front & rear seals, while it sat on the trailer ( not running). and it poured out while running. I took off the drivers side valve cover while the motor was running & it was blowing oil out of the vent hole between the # 1 exhaust & intake rock arms. I was told that one of the pistons had a hole in it, or the rings were broke. So i took it apart and found no holes in the pistons & no bad rings. so what do yall think.
big dwag is offline   Reply With Quote
Old 07-04-2011, 11:04 AM   #2
jdl
AF Enthusiast
 
Join Date: Mar 2004
Location: lindsay, Oklahoma
Posts: 794
Thanks: 1
Thanked 40 Times in 39 Posts
Re: Blow by on motor

Do a cylinder compression test. Compare all cylinder readings.
jdl is offline   Reply With Quote
Old 07-04-2011, 12:20 PM   #3
maxwedge
A990 racer
 
Join Date: Mar 2002
Location: Chestertown, New York
Posts: 16,604
Thanks: 14
Thanked 330 Times in 324 Posts
Re: Blow by on motor

A cylinder leak down test will see what and where the pressure is being lost, best way to test an engine's condition.
__________________
maxwedge is offline   Reply With Quote
Old 07-04-2011, 05:53 PM   #4
big dwag
AF Regular
Thread starter
 
Join Date: Feb 2004
Location: clute, Texas
Posts: 129
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Blow by on motor

Yeah, but i had already torn the motor apart. I found the crank & rod bearings were worn, Crank was scared, & The screen on the oil pump was plugged up.
big dwag is offline   Reply With Quote
Old 07-04-2011, 06:30 PM   #5
procaddytech
AF Regular
 
Join Date: Nov 2004
Location: Mechanicsville, Maryland
Posts: 256
Thanks: 1
Thanked 47 Times in 44 Posts
Re: Blow by on motor

Agree. Do a compression test. If it is low, repair as needed. Did you re-ring the pistons and if so did you stagger the end gaps? If compression is ok, add a proper pcv system or repair the one that is malfunctioning.
procaddytech is offline   Reply With Quote
 
Similar Threads
Thread Thread Starter Forum Replies Last Post
Hatchback civic blows motor SRT-Wannabe Non Specific 0 10-15-2006 06:03 PM
2000 Camry Blow Motor Resistor Location alkemist Camry/Camry Hybrid/Vista 2 09-19-2006 03:35 PM
blowe motor lee101 Camry/Camry Hybrid/Vista 3 08-28-2004 03:46 AM
Supra blows motor on dyno trev0006 Car Videos 6 08-26-2004 05:09 PM
2000 Grand Prix Blow Motor summer78 Grand Prix 2 02-03-2004 07:03 PM

Reply

POST REPLY TO THIS THREAD


Bookmarks
Go Back   Automotive Forums .com Car Chat > Chevrolet > Nova

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



All times are GMT -5. The time now is 01:01 AM.

Community Participation Guidelines | How to use your User Control Panel

Powered by: vBulletin | Copyright Jelsoft Enterprises Ltd.
 
 
no new posts