I am getting ready to mount the LIM and UIM. LIM to block gasket is metal multi-ply and UIM to LIM gasket is metal. Does anyone use any type of sealer on either of these?

Again, thanks in advance,

Jeff

 

No, I don't think anyone uses it there.

 

it's not needed, just make sure the mating surfaces are clean.

 

I spray a light tack of cooper gasket spray on metal sheet gaskets but thats just me. Something we do on our high horsepower cars so why not a rotary

 

I use RTV on every intake I put together on any car. After spending over 10 hours trying to locate a vaccum leak on my old GTR and finally finding out it was the brand new Tomei intake maifold gaskets I had put in, I would rather be safe than sorry. It's not fun to assemble everything and then find you have a leak.

It helps to fill in the little knicks and scratches that accumulate over time.

 

Never really thought about it, but I'm not sure about RTV with the metal gasket. If it only saw vacuum maybe. But with RTV on the metal gasket it would prevent you from directly sealing to against the metal manifolds surfaces. Seems like there would be an added risk of compromise from boost to the soft RTV.
Along the lines of using the pan gasket with sealer, your just adding layers to sandwich and to the number places it could leak.

 

well since that time, so far I've never had an issue. And the GTR saw upwards of 2 bar of boost on the dyno. So far my RX7 is still being broken in but I'm sure it will be fine.