Hey guys, The 7's sprung another minor leak.. except it's in a very odd region, the metal pipe that plugs into my auto trans underneath. The fluid drips ( and sprays apparently,, there's gunk all around it) from where it bolts in.. and I can't seem to find a gasket - if there is one- online. any ideas?

 

Check out the 1979-1980 parts manual on foxed.ca. It looks like all of those fluid filled connections have bango bolts.

Page 1-C13

http://www.foxed.ca/rx7manual/manual...000A-1950A.PDF

 

Turns out it's not a pipe but the speedometer gear.. now to find a replacement since it leaks lightly from that spot and I have no idea if the O ring on Atkins rotary works.

 

Dumb question but would anyone know where I could get the speedo gears o ring from? Atkins has one but I have no idea if it's the o ring that goes around the assembly that's pictured here ( from a old 2006 thread) of the speedometer gear assembly..
https://www.atkinsrotary.com/store/7...11-17-443.html
or this ?
https://www.atkinsrotary.com/store/7...11-17-443.html
This little leak is driving me nuts.. its staining the driveway with little specks of red ATF. It literally only drips ONE drop, but it's enough to leave a nickel-sized stain every time.
Edit: looked at the FSM, both parts are used, I'm just going to swap the outer o ring first since that's where it appears to be leaking from, if it was the internal one it would be dripping from the middle. 4bucks for a rubber band is kind of pricy but it beats scrubbing the driveway every week.

 

Also remember this is not just a normal seal. It's one made to be exposed to ATF which would swell normal rubber.

 

Years ago I bought a O ring replacement kit from HF. It has all sizes in it from 1/4 to near 2" and I have used them to replace speedo seals on many vehicles, without a problem. For what it costs it is worth a try. It comes in a maroon box about 6" X 10" X 2" high

 

I saw that yesterday ! Im going to pick one up , they have one with seals made of a compound thats not rubber . My trans no longer leaks in the driveway after I re tightened the pan but it does indeed leak from that area and every week I have to add like a tenth of a quart of fluid . Stupid design tbh .

 

1011-17-443 is the O ring that seals the speedo thing to the trans. the seal inside is 9958-60-8166, if that one goes bad the oil goes up the speedo cable and drips on you!