Rb20det Inlet Manifold Top Gasket Options?

[mjfawke]

Well, I've split #6 lower injector seal, and the top half of the manifold needs to come off to get the fuel rail off. Trouble is that the gasket was 'repaired' the last time the manifold was apart to replace the O-rings and seals on the injectors, so I really think I should grab a new gasket or come up with an alternative.

Does the RB25DET gasket interchange, or perhaps the Aus delivered R31/RB20DET (NICS) motor gasket? Or is there somewhere that stocks this sort of item? Has anyone has success with the silicone "instant gasket" tubes?

[fazzy]

Hey chief, don't even muck around - get yourself a new gasket!

Do it once do it right...Any decent parts shop can get you the right one.

If you are stuck for one try loctite 516 'master gasket' it is a flange sealant that should do the trick...don't just replace one seal either, do them all & it will be done for good with no hassles!

[James_03]

I can tell you a way of making your own, I have been for a while and it works great.

Go down to any auto place and purchase some gasket material, sort of like cardboard its pretty cheap.

Then lay it down accross the intel manifold and get a hammer with a round end on it (a small hammer works best), then gently hit the gasket around the edges and it will cut it away.

Works much better than and gasket goo, just have to be careful when doing it you do not damage the surface of the inlet manifold by hitting it too hard.

The rb25/nics its a different style inlet so its not interchangable.

That or go get fisted by nissan for a genuine.

[mjfawke]

don't just replace one seal either, do them all & it will be done for good with no hassles!

I wish that were true, because when it had a leaking O-ring before the engine was fitted to the car, we pulled the injectors & had them cleaned and replaced all seals & o-rings. The car doesn't get driven much, and it's only been 3 years/~20K-Km since that work was done. No-6 O-ring is also leaking slightly, but the bottom seal has a split and is no longer sitting in the bottom of the recess in the manifold.

I'll try and find a shop in Aus. which can get the gasket, otherwise I will have a go with the gasket paper (many years since I had to do that! Cornflake box cardboard work well for this as well, but I'll go with the real paper for this).

[mjfawke]

Well - the gasket is available via Nissan for less than $15. Apparently they have seen the light, and carry many of the service items for the imports.

Bad news is that three of my injectors are stuffed - leaking from the body, not the O-Ring.