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Turbo Exhuast Valves and valve stem seals


HadesOmega

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I'm changing the head gasket on my L28ET in my 280Z and was looking at the exhuast valves. They're all white except where the gasket blew and spewed water over them. I was checking the head out and looks like it might need to be resurfaced so I was wonder if I should have the head rebuilt with new exhuast valves. Is it something that will fail often? On my turbo eclipse it cracked a valve at like 110k miles and I know exhuast is hotter on turbocharged cars than NA cars.

 

Also I have a headkit that I bought for my old engine. Does anyone know if the valve stem seals from a 76 L28E will work on a 82 L28ET? Thinking I should change those out if I get it rebuilt.

 

haha one more quick question is it common for cylinder 3 and 4 to blow the gasket and burn water? Samething happened to both my engines I thought I could be slick and get away with putting in the turbo one but that one crapped in the same place too.

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The valve stem seals you have will work..

 

I ahve not had a head gasket blow (stock or otherwise), so I cannot really assist you w/ the second question, other than that they must be blowing for a reason. A head resurface should take care of it though.

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damn I can't find exhuast valves anywhere maybe I'll just get it resurfaced. anyway I think I found out why it keep on blowing in the same place. the exhaust valves are right next to each other on 3 and 4 and on the other cylinders the exhuast is next to an intake valve.

 

anyway I hope a resurface will just do the trick.

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