Plenum gasket glueing

[UKZR1]

Just fitted a set of new injectors. I need to fit new gaskets this time around. The exsisting one has lasted a couple of plenum pulls but its going to need replacing thios time around.

I have 2 sets an original back set and a pattern set. Having just removed the old set from the plenum it is obvious that Marc had glued it to the plenum. What glue was used?

[tomtom72]

I don't know what adheasive Marc would have used.

But when I did my plenum pull I used a permatex product that looks like a large lipstick tube. Worked the same as a lipstick, push at the bottom and the adheasive in a stick comes up so you can 'paint' it on the gasket or metal or both. Just like the ladies do a lipstick job on their lips.

The stuff worked great as I had to re-pull the plenum some months later for a code 61 and the plenum came off the I/H's and the gaskets were perfectly intact. I used the permatex "lipstick" on both sides of my plenum & I/H gaskets, water tube gaskets, T-body gaskets and CCVB cover gasket. Just a light coating so it was barely visable.

[flyin ryan]

i use 3-M yellow weatherstrip cement a lot. let it set-up for a minute or so before laying the gasket down. the gasket won't slide around, like silicone, plus it's realitivly easy to clean up, unlike silicone. i usually only use it on one side of the gasket. i've used it for years. don't use the black stuff, only the original yellow works, don't ask my why?

[jonszr1]

thats a great idea ryan , thanx . i did that on my old mustang to the valve covers as its got a solid lifter cam that needs adjusting from time to time

[SharkPilot]

After replacing my injectors I just installed the gaskets dry. They are White Racing gaskets. Should I have used some sort of sealant? The car is running great.

[Chris_32212]

i saw some plenum, TB, and IH insulator plates for sale at Exotic Muscle. does anybody know more about these? the claim was that the insulate heat better than a regular gasket which would keep the plenum cooler to keep the air charge cooler. anybody used them before?

Chris

[jonszr1]

chris they might help some . but for the price i personally wonder if they are worth it . once the engine compartment gets hot heat soak takes over. at least thats my take on it . randy woods makes them as well as underdrive pullies, as well as thermastates for our cars .

[UKZR1]

Originally Posted by SharkPilot

After replacing my injectors I just installed the gaskets dry. They are White Racing gaskets. Should I have used some sort of sealant? The car is running great.

The plenum is ported for a 368 so the gasket needs to be trimmed quite a bit and I cant afford for it to move around at all.

I found this product - Loctite 534, that too comes in a lip stick style tube and sounds like a similar product to the one mentioned.

[Chris_32212]

Originally Posted by jonszr1

chris they might help some . but for the price i personally wonder if they are worth it . once the engine compartment gets hot heat soak takes over. at least thats my take on it . randy woods makes them as well as underdrive pullies, as well as thermastates for our cars .

i questioned whether they would actually help much also, thats kinda why i was asking about them. just to see anyone had any experience with them. last thing i want to do is spend money on products that dont come thru on their claims. if anyone has used these, please let me know if you think they are worth it or not.

Chris

[flyin ryan]

Originally Posted by SharkPilot

After replacing my injectors I just installed the gaskets dry. They are White Racing gaskets. Should I have used some sort of sealant? The car is running great.

you don't HAVE to use glue, so don't worry about it now. it just makes it easier to install on some things, plus if you need to trim it's way easier, plus if you ever have wicked back-fire or nitrous sneeze it help's keep the gasket together if you have some thin areas. i use the 3-M stuff i mentioned a lot.