Intake manifold gaskets for alum. heads and intake
No matter what i try, i still develop a vacuum leak. Is there a special gasket to use with edelbrock heads and intake???? So far I've tried stock gaskets with RTV smeared outside the ports, and the gaskets with the silicone rings on it.
04-17-2003 10:05 PM
Well, im not the smartest engine guy around, but i always use fel-pro gaskets for everything, and on the front and back of the intake (where it meets the engine block) use The Right Stuff. its a silicone like gasket material that works great. its kinda expensive, but well worth the extra money. also check the torque on your bolts.
4 Jaw Chuck
04-17-2003 11:04 PM
Non hardening sealer works far better than silicone in this application, I like this product best but any non-hardening sealant will work. I use this stuff for sealing motorcycle crankcases without gaskets so I know it works well in difficult to seal applications. Coat your gaskets in the stuff, I must warn you it is expensive for the amount you get in a tube. Get some primer T or N to go with it for the ultimate in sealing.
I only use sealant around the water passages, most newer gaskets are silicone coated and any extra sealer can make them 'move". Another possibility is any machine work done on the block or heads could be making them not align as they are supposed to.
04-18-2003 07:12 AM
With all joking aside this is not the correct place for tip of the day it should be put in the
A place to hang out and discuss non-automotive stuff. <img src="graemlins/nono.gif" border="0" alt="[nono]" />
02-20-2004 12:03 PM
Big 10 4
02-20-2004 12:19 PM
I only use sealant around the water passages, most newer gaskets are silicone coated and any extra sealer can make them 'move".
Another possibility is any machine work done on the block or heads could be making them not align as they are supposed to.
Agreed. You might want to run a machinists straight edge over the machined surfaces and make sure they are within tolerance.
Does't EDELBROCK have their own brand of gaskets? (I always use FEL-PRO)