Hi all,

I plan on removing my Upper Inlet Plenum at the weekend to try and find a Vaccum leak on one of the many pipes under there.
As american car parts are not sold in the UK i will not be able to get a gasket if i break the one that is on there, also i dont want to wait 2 weeks for parts to arrive from the states.

Therefore will i be able to use "Instant Gasket" such as "Hermatite Blue" ??, and just create a thin bead around the whole plenum surface prior to re-assembly.

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Regards,

Paul Taylor, England.
85 GT Notchback, 2.8 V6, 4 speed manual. Custom made Tubular branch exhaust manifolds with true twin 3in exhaust system. No CAT, No EGR. No Crossover pipe. ADS Road Race SuperChip & 160 deg stat. Gen 4 eRam. Poly bushes all round. Lowered 2 inches. 16" alloys with 225/45 rubber. 0-60mph in 5.5 sec.

www.fieroforum.co.uk/Paul85gt.htm

Should be OK,
Just be careful when removing the plenum and it should come off without damaging the gasket. Work slow and have a plastic putty knife handy to help it along.

I have my daily driver sealed up with sealer.
It has been fine for 3 months now. Don’t use too much and let it tack up before putting the parts back together.
Thats what I did on mine and it has been fine.

Great, thanks Guys,

+ for you......

Paul T
UK

If you break the gaskets why to just buy gasket paper and make your own? Or if you want to go even cheaper just use an old cereal box as the gasket material.

the gasket should come off ok, they are just basicly cardbaord, and no liquid hits them, well, shouldnt hit them...
and, the instant gasket should be ok also, just be very light with it. the plenums arent under much pressure (actually, vacuum).
fear not, you will be fine

Although I have never removed the plenum, I have always thought that if the gasket is in poor condition, a piece could fall off and into the intake manifold. A real possibility I think. So, you might be wise to have a " shop vac" or as you might refer to it a
"shop hoover" handy. A quick vacuum of the intake channels should remove any pieces that may have fallen inside. Ed

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I just removed mine today for the first time and the gaskets are holding up very nicely. No breakage upon removal. A few things I learned;
you have to have 12 point sockets or wrenches. It is easier to remove the throttle body with the torx bit and also you have to remove the lower (valve end) of the egr tube. Spray everything with pb blaster the night before and you will thank yourself a hundred times.
check my post today---First fire then repair for pictures.