RX7Club.com - Mazda RX7 Forum - 85 12a OMP Leaking: Fix or Block Off

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- - 85 12a OMP Leaking: Fix or Block Off (https://www.rx7club.com/1st-generation-specific-1979-1985-18/85-12a-omp-leaking-fix-block-off-981040/)

KansasCityREPU

12-24-11 03:46 PM

Quote:

Originally Posted by mikexj1020 (Post 10911187)

Okay So I need to get some longer bolts or shorter bolts? Ofcourse get the same thread pitch and all. Whats wrong with the bolts that are on there now?

You need shorter if using a blockoff plate. Some people forget and use the old ones that are too long.

Jeff20B

12-24-11 04:00 PM

Oil pan bolts are too short. Their threaded section is usually the same as the thickness of the block off plate. Something in between is perfect. I'm trying to think which bolts are common enough that you'll have two spares but are also the correct length...

Another choice is to cut the stock bolts are space them out with a stack of washers or thread a nut on first...

DriveFast7

12-27-11 11:29 PM

Quote:

Originally Posted by mikexj1020 (Post 10911187)

Ive read both gasket material or Permatex. Idk

BOTH! You'll see why when it starts leaking. :lol::lol::lol:

High_Carb_Diet

01-08-12 09:48 AM

Shorter bolts the old ones are too long.

OneRotor

01-08-12 02:25 PM

rebuild or go with the RA OMP adapter. I got the pineapple racing dvd, and it was awesome. took about 20 minutes, and the gasket is very nice (I've taken the OMP off and re-installed it 3 or 4 times and haven't ripped it. It's a plastic-ish material)

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