350 engine had not run for long time
January 12th, 2014, 12:14 AM
#1
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350 engine had not run for long time
Hello all, I have a 350 chevy engine that had not run in about 10 years due to a transmission problem. The car a 1976 vette was garaged all this time. I am retired now so I am trying to get it going again. I put Marvel Oil in the cylinders and let it sit for a while then turned it over. I have changed oil and filter. After working thru several issues Starter, leaking gaskets, rebuilding the Holly, replacing rotted vacuum lines and fuel lines the beast cranked. The biggest concern that I have now is a lots of blue smoke out of both exhaust pipes. The engine hasn't run very long yet because I am concerned about the smoke and don't want to damage anything. The engine had a rebuild and was running good before it was garaged. I am going to get a compression tester tomorrow and do some testing. Rings stuck ? What do you guys think?
On a plus side, I had forgotten what a old school vette with a cam and headers sounded like, sweet
On a plus side, I had forgotten what a old school vette with a cam and headers sounded like, sweet
January 13th, 2014, 1:10 AM
#3
Super Moderator
That Marvell exits pretty quickly.
I'm thinking you have a stuck oil ring.
Pull/clean the Plugs, run engine, and pull again.
Check and see which Cylinder shows an oily plug.
Then you can focus your efforts on the right Cylinder(s).
Reapply Marvell or other treatment to just those Cylinders.
PS:
Don't get in a hurry with the soaking process, sometimes it takes a couple days/repeated applications to break um free.
I'm thinking you have a stuck oil ring.
Pull/clean the Plugs, run engine, and pull again.
Check and see which Cylinder shows an oily plug.
Then you can focus your efforts on the right Cylinder(s).
Reapply Marvell or other treatment to just those Cylinders.
PS:
Don't get in a hurry with the soaking process, sometimes it takes a couple days/repeated applications to break um free.
Last edited by SWHouston; January 13th, 2014 at 1:13 AM.
January 13th, 2014, 10:47 PM
#5
Super Moderator
You're so right on that one !
It would have been nice if the guy had poured a little ATF in those cylinders before he put it up, but...
I'd use ATF more as a preservative, Marvel has a much higher concentration of detergent and penetrant, and probably will work quicker in this instance.
This is just an FYI:
The 3 in the 3 in One Lubricant stands for...
lubricant.
penetrant,
protectant.
:wink:
It would have been nice if the guy had poured a little ATF in those cylinders before he put it up, but...
I'd use ATF more as a preservative, Marvel has a much higher concentration of detergent and penetrant, and probably will work quicker in this instance.
This is just an FYI:
The 3 in the 3 in One Lubricant stands for...
lubricant.
penetrant,
protectant.
:wink:
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