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how can i......

NEK5

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make sure that all my motor needs is valve seals??? i know she`s burning oil.......just want to be self assured thats my only problem
 
if it only smokes on startup and a few minutes afterwards your cool...if it keeps smoking you have issues
 
it does continue to smoke as well, particularly when in 3-4000 rpms, for instance, if i punch it a little a look in the mirrors i can see a little smoke, and the other day while driving around, i shifted into one or L, and it would smoke when i went into higher rpms, and you can smell it too, sometimes bad, and one time my mom drove behind me and said my truck smelt
 
chvymudin3388 said:
u need a rebuild dont feel bad im in te same boat fixing to yank her out, my number seven shoots oil out the cylinder

Or the 350 I have that he never got back to me about. :rolleyes:
 
Why don't you do a leakdown before you settle on a rebuild?
i dont know how its done, and if i`ll even be able to do it


hawkeye649 said:
Or the 350 I have that he never got back to me about. :rolleyes:

the problem is i wouldn`t even be able to put it in
 
I am currently expieriancing the same problem with my 350. I am in total agreeance with you. I am counting on doing some head work soon. Would be a good time to go Aluminum I would think.
 
i would love too, the problem is, i have no way of doin the work
 
so, do the problems i`m having most likely have something to do with the heads?
 
ttt.... i had someone tell me that it could be my pistons/rings??? is there anyway to make sure, if its the heads then i may look at purchasing some new/rebuilt ones....if not then i dont know what to do.....
 
i dont want to sound negitive but IMO fixin something like valve seals to fix the smokeing issue is kinda like puttin a bandaid on a severed arm. if your engine smokes its time to rebuild period. youll just run into more problems sooner fixing 1 thing at a time on an engine. i know it cost more and takes longer but its worth it. also a tip for low budget guys is take advantage of automotive schools if there is one local. i had mine rebuild by the local automotive school and the long block only cost me $560 including machine work. and most any school will take pride and do quality work. the teachers are almost always right there and sometimes hands on. the teacher here has several degrees in automotive and all the ASE certifications so im not worried about it being done right although it took longer (about 3 months) but i had planed ahead so it wasnt an issue

balzer
 
original balzer said:
i dont want to sound negitive but IMO fixin something like valve seals to fix the smokeing issue is kinda like puttin a bandaid on a severed arm.


If it smokes on start up only, valve seals are easier and cheaper to replace than a rebuild.

I can understand the logic if it's something worst.
 
will one of those tests tell me if its either the pistons/rings, or the heads?
 
BIGBLAZE433 said:
will one of those tests tell me if its either the pistons/rings, or the heads?

Not really. Just verifys if the combustion chamber is leaking or not.

What 79k20350 said-If it smokes on start up, then clears up, it's probally just the valve seals. It will cause oil loss over time.

If it's smoking all the time, and the oil levels going down alot, then it's probally the rings.

Valves themselves not seating properly in the head will cause a leak, but shouldn't burn oil.

Comparing the pressure cylinder to cylinder during a compression check will detect bad head gaskets.
 
MarcS said:
Not really. Just verifys if the combustion chamber is leaking or not.

What 79k20350 said-If it smokes on start up, then clears up, it's probally just the valve seals. It will cause oil loss over time.

If it's smoking all the time, and the oil levels going down alot, then it's probally the rings.

Valves themselves not seating properly in the head will cause a leak, but shouldn't burn oil.

Comparing the pressure cylinder to cylinder during a compression check will detect bad head gaskets.
could the seals be so bad that its constantly letting oil blow by?
 
My 350 as well is in need of some repair before it gets worse. I have a good power loss and some smoke So as soon as money allows Heads off and down to the Machine shop. Is it a good Idea to find some heads in a Junk yard and just go have tem work over then swap mine and do them when I have time and money? Then hold the extra set.
 
BIGBLAZE433 said:
could the seals be so bad that its constantly letting oil blow by?


The oils not going to blow by. There is no real pressure. It just sits on top of the valves under the valve covers and leaks by the valve seals when the engine is off. Thats why it smokes then clears up after you start up and run a few minuites. The leak is slow, so when the engine is running, it's hard to say if the seals are the problem compaired to the rings.

Your going to burn alot more oil with bad rings then with bad valve seals.

The valve seals are cheap and easy to replace or use whats called umbrella seals to fix the problem.

Rings, :frown1: ---Time to rebuild/replace engine.


Does the engine smoke on start up and clears or does it smoke all the time ??? That will give you the answer to whats next ??? Let us know.
 
TDAWG1 said:
My 350 as well is in need of some repair before it gets worse. I have a good power loss and some smoke So as soon as money allows Heads off and down to the Machine shop. Is it a good Idea to find some heads in a Junk yard and just go have tem work over then swap mine and do them when I have time and money? Then hold the extra set.


Be careful putting money into the top end of the engine and not doing something about the bottom. Your better off saving money and doing a complete rebuild instead of band-aiding it.
 

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