RX-7 Renesis Gasket Modification
(RX7 to RX8 Renesis Front Cover Gasket Mod)
We’ve all seen the leaky
front cover gaskets in the past rotary RX7s.
So has Mazda, apparently, as they have redesigned the RX7 gasket for
the new Renesis RX8 engine. The
new RX8 renesis gasket is now made of metal and has a crush ring around it; far
superior to the old RX7 paper gasket. The purpose of this is to help you
take advantage of the newer RX8 gasket style and use it on the older RX7
Here’s a close-up of the 2 bolt holes that are
To make this gasket work, we’ll need to do some
cutting. It is metal, but
some sturdy scissors or tin snips will work just fine. I’ve marked the cut points in red.
To make this gasket work, we’ll need to do some cutting. It is metal, but some sturdy scissors or tin snips will work just fine. I’ve marked the cut points in red.
OK, let’s cut it! Just remember to stay on the outside of the crush ring when cutting for the bolt hole!!
You’ll notice part of the gasket is now
free-floating on the water pump stud.
You can attack this in a few different ways:
either add just a touch of super glue or RTV spread very thinly
to glue it onto the front side housing so it doesn’t fall off. You can
leave it off entirely, use a washer/spacer from an s4, or you can cut
the other “spacer” section of the gasket off and use the original
spacer from the REW motor. Any
of these ways are fine.
Here’s what it looks like when we are all done:
Now wasn't that FUN?! =)