head gaskets
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head gaskets
The reason i am asking is that i currently have the entire intake system apart due to a leaking driver side intercooler. Im %75 of the way there already, and i am thinking about getting a set of multi layered steel head gaskets made. i found them for a 4.2 and a 3.9 but not the 4.0.
from every thing i can find, its the same but i wanted another opinion...
from every thing i can find, its the same but i wanted another opinion...
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I am not sure what material the 4.0 gasket are (some sort of composite), but the 4.2 are multi steel layered.
The other difference is that the 4.2 gaskets are a little bit thinner, and irrc it would increase the compression from 9.0 to about 9.2 something. Depending on any further changes this could be something to consider, as the 4.0 gaskets are not the strongest, many have failed, versus almost none (only exceptional bases) for the 4.2 gaskets.
I think cometic makes also gaskets for our cars; maybe they could make a slighty thicker metal layered one?
The other difference is that the 4.2 gaskets are a little bit thinner, and irrc it would increase the compression from 9.0 to about 9.2 something. Depending on any further changes this could be something to consider, as the 4.0 gaskets are not the strongest, many have failed, versus almost none (only exceptional bases) for the 4.2 gaskets.
I think cometic makes also gaskets for our cars; maybe they could make a slighty thicker metal layered one?
Last edited by avos; 08-23-2010 at 12:12 PM. Reason: typo
#7
gaskets
avos,
I have been looking at the Cometics gaskets. they only have the 4.2 and the 3.9 listed.
they do not have the 4.0. i emailed them and they said they were unsure if it is or not.
This is what they have listed:
T-bird/Lincoln 3.9 engine. "Material: MLS / C.O.T - .030""
Jaguar 4.2 US engine "Material: MLS .030""
With what you are telling me, it sure sounds like it would be a good idea to just go ahead and do it.
I have been looking at the Cometics gaskets. they only have the 4.2 and the 3.9 listed.
they do not have the 4.0. i emailed them and they said they were unsure if it is or not.
This is what they have listed:
T-bird/Lincoln 3.9 engine. "Material: MLS / C.O.T - .030""
Jaguar 4.2 US engine "Material: MLS .030""
With what you are telling me, it sure sounds like it would be a good idea to just go ahead and do it.
Last edited by 2000blackxkr; 08-23-2010 at 12:31 PM. Reason: forgot something
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#9
head gaskets
i got my gasket kit today to re-seal every thing, and it came with a new set of stock head gaskets. they do look a bit flimsy. and i measured it out. They are the same size as the 3.9 gaskets. makes me think squirrel is right.
Also, do any of y'all have any other suggestions on what i should look at while i have the engine out to do this? i am going to use some head studs instead of bolts. Any other recommendations??
P.S 3rd gen tensioner's were already installed.
Also, do any of y'all have any other suggestions on what i should look at while i have the engine out to do this? i am going to use some head studs instead of bolts. Any other recommendations??
P.S 3rd gen tensioner's were already installed.
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