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 > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 11-13-2012, 10:07 PM   #1
GM-power
Registered User
 
GM-power's Avatar
 
Join Date: Mar 2012
Location: Little Rock, Arkansas
Posts: 770
oil leak

Oil is leaking from somewhere by the distributer. What could it be? I've read it could be pcv. I haven't taken anything apart and it just started doing this a few hundred miles back. These leaks are aut to drive me mad. This is on a 350 on the LH side and drips down onto the bellhousing then onto the trans pan.
__________________
1979 Sierra Classic Heavy-half
1996 Silverado x-cab "the daily"

Last edited by GM-power; 11-13-2012 at 10:32 PM.
GM-power is offline   Reply With Quote
Old 11-13-2012, 10:44 PM   #2
dealrcn
Registered User
 
dealrcn's Avatar
 
Join Date: Apr 2011
Location: westville, Florida
Posts: 30
Re: oil leak

Is it coming from the distributor? Or at the oil sending unit at the back of the motor? Or is it the valve cover or intake manifold leaking? These are a few places to check first.
Posted via Mobile Device
dealrcn is offline   Reply With Quote
Old 11-13-2012, 10:46 PM   #3
GM-power
Registered User
 
GM-power's Avatar
 
Join Date: Mar 2012
Location: Little Rock, Arkansas
Posts: 770
Re: oil leak

Quote:
Originally Posted by dealrcn View Post
Is it coming from the distributor? Or at the oil sending unit at the back of the motor? Or is it the valve cover or intake manifold leaking? These are a few places to check first.
Posted via Mobile Device
Valve covers are fine, I can't really tell whether its the manifold or the oils sender its just. Hat area
Posted via Mobile Device
__________________
1979 Sierra Classic Heavy-half
1996 Silverado x-cab "the daily"
GM-power is offline   Reply With Quote
Old 11-13-2012, 10:54 PM   #4
dealrcn
Registered User
 
dealrcn's Avatar
 
Join Date: Apr 2011
Location: westville, Florida
Posts: 30
Re: oil leak

I'm gonna bet that its the oil sending unit. I would spray it down good with some engine degreaser and clean that area really good. Then take a good look at it. Does it have a mechanical oil pressure gauge, electric gauge/light? Sometimes the sending unit or tubing fittings just need to be tightened but sometimes the sending unit will go bad and start leaking.
Posted via Mobile Device
dealrcn is offline   Reply With Quote
Old 11-13-2012, 11:00 PM   #5
GM-power
Registered User
 
GM-power's Avatar
 
Join Date: Mar 2012
Location: Little Rock, Arkansas
Posts: 770
Re: oil leak

Mechanical in guessing its all stock.
Posted via Mobile Device
__________________
1979 Sierra Classic Heavy-half
1996 Silverado x-cab "the daily"
GM-power is offline   Reply With Quote
Old 11-15-2012, 08:31 AM   #6
dwatts1984
Registered User
 
Join Date: Jan 2012
Location: Gulf Breeze florida
Posts: 26
Re: oil leak

Worst case scenario grab some UV die (11 bucks or so at auto parts places) and pour it in. The stuff Ive used in the past doesnt even require the UV glasses. Its pretty straight forward... Where you see green is where the leak is originating. I'd wait till you need to do an oil change though. Its safe to use in the engine... Just don't want your truck looking like its pissing ninja turtle green pee!
dwatts1984 is offline   Reply With Quote
Old 11-15-2012, 07:43 PM   #7
GM-power
Registered User
 
GM-power's Avatar
 
Join Date: Mar 2012
Location: Little Rock, Arkansas
Posts: 770
Re: oil leak

Looked at somewhat close after I drove it. It kinda looks like its leaking where the opsu screws into the motor. Is this bad, or do I just need to get a new one put her in there?
Posted via Mobile Device
__________________
1979 Sierra Classic Heavy-half
1996 Silverado x-cab "the daily"
GM-power is offline   Reply With Quote
Old 11-15-2012, 10:20 PM   #8
dealrcn
Registered User
 
dealrcn's Avatar
 
Join Date: Apr 2011
Location: westville, Florida
Posts: 30
Re: oil leak

Quote:
Originally Posted by GM-power View Post
Looked at somewhat close after I drove it. It kinda looks like its leaking where the opsu screws into the motor. Is this bad, or do I just need to get a new one put her in there?
Posted via Mobile Device
If the sending unit is still working and it's just leaking at the block you can just take it off, clean it, put some thread sealant on the threads and put it back on.
Posted via Mobile Device

Last edited by dealrcn; 11-15-2012 at 10:31 PM.
dealrcn is offline   Reply With Quote
Old 11-17-2012, 07:44 PM   #9
GM-power
Registered User
 
GM-power's Avatar
 
Join Date: Mar 2012
Location: Little Rock, Arkansas
Posts: 770
Re: oil leak

Well I tightened the opsu and it still leaked. Turns out its the intake so im gonna live with the leak for a week till I get payed then get a performer intake and hopefully fix this leak.
__________________
1979 Sierra Classic Heavy-half
1996 Silverado x-cab "the daily"
GM-power is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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 04:31 AM.


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