Brett Matthews

And another; when I removed the oil filler neck, there was a "plate" kind of a seal... A narrow aluminum outer ''ring", with what I think was an "o"-ring next, then a kind of a baffle plate, again made of aluminum.

Was this the correct assembly? There is no "o"-ring groove, just a flat surface on the block and neck.

Do I place the new "o"-ring back between these two aluminum parts?

If it matters, my block is an early '87....

Pizza

If you want to pay big bucks ($250) you can order the "Modified" oil fill neck with the o-ring groove in it. The aluminum plate with baffle and rubber ring is no longer available. Most people use gasket sealer on the old one. Good luck.

Brett Matthews

Thanks Pizza,
I finally got a good answer. (Good enough, anyway....)

UKKid35

There is an O ring grove on mine, and the rectangular seal is still easily available here. Block surface is flat, glove is in the plastic filler base, can't remember how the baffle fits in.

Big Dave

I used the "new and improved" gasket instead of my old metal ring. My oil filler neck is now leaking and I have to pull the intake off again. I'm going back to the metal ring and using Yamabond sealant. The gasket is worthless...it doesn't even fit well.

UKKid35

Just two and a half years after being replaced, it's leaking again! Perhaps the base of the filler neck is warped - perhaps that's why they changed from plastic to metal...

Can it be replaced by just removing the coolant bridge, or does the plenum get in the way?

lorenolson888

Call devek,

I bought a aluminum plate with baffle.. looks like the original but with no stuck on rubber seal...

I used yamabond and I have no leaks... 1 year later...

But with the stock plate I tried twice and have an oil leak in the valley... Also If you painted or coated the neck... strip all paint from the sealing surface as well as the area where the M6 bolts and washers go... this compressed a bit when the engine heated up and caused a recurring leak...

LO

SeanR

This stinks. Just tried to put a new rubber gasket on the fill neck of an '86 and the metal pieces fell away from the rubber...Now I have the baffel, the ring, and no way to put the rubber seal on there..... Dangit. Looks like I have to go with the paper and some high temp RTV.

bfellows

I managed to replace the o ring with the plenum in place. Lots of wiggling, but possible.

UKKid35

Thanks, my post was two years ago and I've still not got round to doing it.

oz928s4

Can you not use a holesaw to make a groove for an O' ring to seat in.

Brett Matthews

Hi OZ,
The opening where the plate fits is not round..... I doubt a holesaw could be easily made to work....
Brett