Oil leak, rear intake..clean & silicone ?

[rustytoolss]

Has anyone had any luck sealing an intake leaking oil at the back, by cleaning the surfaces, and applying silicone ? When I installed my intake, I did not use the end gaskets/ and just used silicone (thought I used enough). I really do not want to pull my intake..again.

 

[straightlinespeed]

As much as you dont want to, you know your better off pulling it and doing it properly.

Being as there is oil already on the existing silicone, and even if you clean it, did you get it all? The new silicone is not going to be one solid bead like if you redid it. I think eventually it will leak again and you will be in the same boat.

 

[540Valiant]

X2^^ When you do it again, make sure the bead is thick enough and overlaps the ends, and try and line it up the first shot. Also, to save a mess, take the thermostat housing off, then use a shop vac and a rag to seal it, to suck the block dry of coolant, before you remove the intake. If the shop vac is clean, you can reuse the coolant too. Hopefully this helps. Good luck with it.

 

[straightlinespeed]

then use a shop vac and a rag to seal it, to suck the block dry of coolant, before you remove the intake. If the shop vac is clean, you can reuse the coolant too.

I have never heard of doing this.. Interesting concept!

 

[ramenth]

I have never heard of doing this.. Interesting concept!

It's an old trick for oil, too, if accidental over fill. Put a shop vac on the oil filler and then pull the drain plug. The shop vac will hold the oil in the pan, allowing you to drain off only what's necessary.

 

[moper]

Intakes are easy... I've also used a new trash bag in a box to catch coolant. Then you just pull the bag out, trim a corner, and dump it back in. Or you can drain and run through a coffee filter or rag to make sure nothing bad gets in there. You have to clean the surfaces perfectly - no oil residue anywhere even from your skin if you want silicone to seal and work as a gasket.