Mazdatrix sent me O rings for my 83 rx7 oil cooler
the ones I took off were 4 in total 2 hard plastic ones in which one cracked and 2 rubber ones. My question is they sent me 4 rubber O rings is that right? or should they of sent me 2 hard plastic ones and 2 rubber ones?

 

I got 4 rubber ones too.

~T.J.

 

did it work?
have any leaks or problems?

 

I think the hard plastic one might have been rubber at one time. Rubber O rings harden up into something that looks like plastic over time.

Is that possible? I have never seen a plastic o Ring before. I seen flat plastic sealing rings.

 

I dont know if these where ever rubber
on one side of oil cooler bracket or whatever it is called
there are two rubber o rings which are clearly rubeer to where the other side has two plastic rings in which one cracked
according to mazdatrix they said I needed to put four new o rings on the oil cooler I got 4 rubber ones will thius work or do i have the wrong stuff and need to get these plastic rings?????????????

 

What he said.

 

All 4 were orginally o-rings.

Personally I would do a GSL-SE oil cooler swap. The weak 12a 83-85 oil cooler is the major contributor to dowel pin oil leaks. Second of course is not changing your oil regularly.

Or do the '79-82 oil cooler radiator swap either one is much better way to keep your oil temperature lower.

John