Newbee to forum; tech Q RE: oilburning ..1981 280zx T

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gonzo2
Posts: 1
Joined: Mon Jun 25, 2007 8:29 am
Car: Nissa 1981 280zx Turbo

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Nice Forum; hopefully I can get some good advice and fix this beast...

Here are the particulars:

-1981 280zx Turbo-25k since shop rebuild-new injectors and all silicone vac hose-compression test reveals 135-138 for CYL 1-5-plugs burning very nicely 1-5 (nice even tan)-cyl #6 compression 149-plug for #6 oily

Car problem observed:Excessive oil burning upon acceleration ....smoke screen bigtimeSmokes lightly at idle

It is evident by the plug foul in #6 I am burning oil. I suspect that the valve stem seal is the problem (My guess)What other things COULD it be if not the valve seal> ?

I did not rebuild this engine (I have however rebuilt engines in the past)..so I am not sure what is involved in replacing the seal IF it is the problem.

Is this a very difficult task? Are there special tools necessary to remove the cam?

All help will be greatly appreciated; I HAVE to get this issue resolved before Sept as this is when my wife returns to work.....so I have some time to break this down and repair ...

Thanks!


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evildky
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Joined: Sat Jan 31, 2004 9:23 pm
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with good compression I'd suspect bad valve seals as well


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