Zero10

The OMP on my 87 rx-7 is leaking pretty badly so I am looking for a parts list of what is required to rebuild / reseal it. There is a user on here who has a thread advertising O-ring kits for a very reasonable price however he is not responding to PMs or posts in his thread so I am hoping maybe somebody on here knows what exact O-rings are required to rebuild this thing myself? I have been searching for a while and I just can't find the O-ring sizes or a good picture guide.

JWteknix

iTrader: (2)

There's a thread in the FAQ with the orange a place to order I got like 50 for 5 bux

3vil

iTrader: (4)

I just took my disassembled omp down to my favorite seals shop. The guy there measured the fit of each part with some calipers and got me exactly what I needed. Was only $10 or so

HAILERS2

https://www.rx7club.com/2nd-gen-archive-72/writeup-rebuilding-s4-metering-oil-pump-608166/

Zero10

Awesome, thanks for the link. I should have just thumbed through the archives in the first place

On a related question, for those who re-sealed their OMP's with viton O-rings years ago, how are they holding up? Still leak-free?

kungfuroy

iTrader: (6)

wow that was a long time ago

Though I dont own the car anymore, the OMP I refurbed in that thread is still running around town leak free

BTW that direct link doesnt work anymore, just copy the partnumber and search on their website

Innovation

iTrader: (1)

This link might help because if you pull the omp you might break a line.
https://www.rx7club.com/forum/showthread.php?t=348068

Zero10

I have some new PFA lines to replace the old ones with. They feel extremely brittle and since I am pulling the UIM to fix some vacuum leaks I figure I'd just replace them while I was in there. I was checking to see if the OMP end of the lines was leaking when I found the oil leak at the pump. Thanks for the tip though

coolmike711

iTrader: (7)

I did the lines and the o'rings on mine 2 years ago. Not a drop.