Engine pulled today, color of exhaust valve?

1987stangman · Sep 1, 2008

I pulled my 87' GT's original motor Sunday. Today I started tearing down the motor and noticed that the front 2 exaust ports on the right side of the motor where covered in white (see pic). The left side was the same but yet the back 2 ports were normal. Before I pulled the motor it ran but was giving me a white smoke at start up and at high RPM's. I do have a Cobra intake on it that has been there for 2 years and this issues just started out of the blue and the car ran perfect untill this smoke issue started. I started to thnk valve seals or rings but now I am not sure. Motor has 170K on it with great oil pressure. Input appreciated!

dgollem · Sep 1, 2008

Sounds like you might of had a slight head gasket leak

Mr. Rustypwnz · Sep 1, 2008

hell no its fine, ive never seen a stock 5.0 without white exhaust valves.. it was running fine..

stang22 · Sep 2, 2008

Maybe a little bit on the lean side, but that is just my opinion.

Tim

Mustang5L5 · Sep 2, 2008

I wouldn't say it's normal, but i can't quite offer a good explanation for it without seeing the condition of the HG and a compression check #'s for the engine

85_SS_302_Coupe · Sep 2, 2008

Every single stock engine that i've taken the heads off of had at least a few white valves. I've never heard a good explanation.

Fast63 · Sep 2, 2008

I'm going to have to agree that it's pretty normal. If anything it was running a little lean. It may also have something to do with your increase in initial timing and maybe even because you were running headers.

1987stangman · Sep 2, 2008

Mustang5L5 said:
I wouldn't say it's normal, but i can't quite offer a good explanation for it without seeing the condition of the HG and a compression check #'s for the engine

I did a compression check and it checks out about 150 accross the board, like I say it ran good just ate oil and was giving radom blusish smoke at start up and at high RPM's. I have a pic of the HG and heads, all looks normal. I just thought it was odd that only the front 2 exh ports on each side of the motor had white carbon and not the back two! Seems like it should be uniform, especially from an EFI motor.

Engine pulled today, color of exhaust valve?

1987stangman

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dgollem

Mr. Rustypwnz

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stang22

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Mustang5L5

That is…until I whipped out my Bissell

85_SS_302_Coupe

it sucks (I know) to be on the receiving end

Fast63

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1987stangman

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Engine pulled today, color of exhaust valve?

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That is…until I whipped out my Bissell

it sucks (I know) to be on the receiving end

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