| |
Click on image for the lowdown. 
====
| | | Forums66 Topics128,113 Posts1,056,279 Members48,439 | | 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!
| | | | Joined: Jun 2014 Posts: 14 New Guy | | New Guy Joined: Jun 2014 Posts: 14 | I bought a 66 C60 w/292 and got about 20 miles down the road and seen smoke, pulled over to find a lot of oil blowing out of the carb area. Anyone seen this before? Truck has been used very little last 8 years. | | | | | Joined: Aug 2013 Posts: 568 Shop Shark | | Shop Shark Joined: Aug 2013 Posts: 568 | Is there a breather tube to the carb? Perhaps it came from there. Other than that it's a stuck intake valve? Sounds serious. I would clean it, refill oil and run it with the valve cover off like your setting the rockers. I bet you see a rocker not moving.
I can explain it to you, I can't understand it for you.
| | | | | Joined: Jun 2014 Posts: 14 New Guy | | New Guy Joined: Jun 2014 Posts: 14 | 2 hoses to breather, 1 is pcv valve hose and other comes from other end of cover? | | | | | Joined: Feb 2000 Posts: 5,219 'Bolter | | 'Bolter Joined: Feb 2000 Posts: 5,219 | A broken or stuck ring will cause lots of blow by, stuck valve will create a miss. You need to find out where the oil is, did it leak from valve cover onto the intake, or did it come from the vent pipe into the air filter housing.
Was the engine over full of oil?
Is it over full now ? or smell of fuel?
Does the engine miss or stumble?
Joe | | | | | Joined: Jun 2014 Posts: 14 New Guy | | New Guy Joined: Jun 2014 Posts: 14 | engine starts super easy and runs well/ no misses, oil came from from vent pipe into air filter housing, thanks for any and all help guys. | | | | | Joined: Feb 2004 Posts: 29,805 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,805 | Do a cylinder leakdown test. You're probably going to find excessive blowby on at least one cylinder.
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!
| | | | | Joined: Jun 2014 Posts: 14 New Guy | | New Guy Joined: Jun 2014 Posts: 14 | compression test showed between 100-112 on 5 cylinders and 61 on back cylinder?
| | | | | Joined: Feb 2004 Posts: 29,805 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,805 | Now do a cylinder leakdown test and find out where the leak is.
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!
| | | | | Joined: Dec 2014 Posts: 72 Shop Shark | | Shop Shark Joined: Dec 2014 Posts: 72 | 61 on the back cylinder? Sounds like you have a bad set of rings on that cylinder. | | | | | Joined: Jun 2014 Posts: 14 New Guy | | New Guy Joined: Jun 2014 Posts: 14 | 61 on the back cylinder? Sounds like you have a bad set of rings on that cylinder. Yes, the rings were destroyed on that cylinder, after finding a few more issues I decided to let my mechanic put in a reman. engine, runs great but I am but deep $$$$ into this truck. | | |
|
|
| |
