upper intake and plent (Page 1/1) lemonhead AUG 12, 02:39 AM hey guys should i use any sealent when changing the upper intake gaskets along with the top plentum? or just dry?. thanks alot pmbrunelle AUG 12, 12:51 PM The flat cardboard gaskets? I put them on dry. Patrick AUG 12, 01:44 PM Perhaps not the usual procedure, but I put a tiny bit of Form-A-Gasket sealer on the bottom side of the gasket and a very thin layer of light grease on the top side. This allows me to easily remove the top plenum again in the future and re-use the gaskets (which are now stuck to the middle plenum). I don't do this elsewhere on the engine, but for this location I feel it's fine. lemonhead AUG 13, 02:10 AM thanks alot for the help. i like patricks ideal just incase i have to do work on the injectors later. Blacktree AUG 13, 10:07 AM I also like to put a light coat of grease or oil on one side of the plenum gasket. It allows the plenum to be removed easily, without damaging the gasket. And it still seals properly.