2 Days ago I had a look under my newly purchased RX7 to find pretty much everything coated in oil. I had a mechanic come out and take a look at it and he said the diff piston (or banjo) seal is leaking, as well as the 'rear extension housing seal'.

Having browsed these forums for a bit, I'm thinking that this 'rear extension housing seal' is the equivalent of the 'transmission output seal'. I called places for parts and they mentioned an 'input seal'... So having got this far, I have determined that the seals I need to get are:

- Pinion seal for diff
- Transmission input seal

Just wondering if anyone can confirm these - and if the effect of having most of the underside of the car coated in oil would be caused by these seals being faulty?

I needa get this fixed up by the end of the week..



Dripping on the cat and burning


underside soaked in oil


diff


diff-driveshaft connection

 

well at least you don't have to worry about rust!

 

Hehe, true but it's gonna cost me too much oil, probably will end up wearing something out if I forget to fill er up every now and then.

What sort of oil do I need to put in, and where with this problem??

Cheers

 

That's not really that much oil, for the lifetime of a car. How many previous owners checked under it, I wonder? You might want to connect the airpump to that cat...

I'd clean it off real well from the areas you think are leaking, then wait and see how much comes out after a few days of driving. Use a white paper to towel to look for small amounts of fresh oil.

Edit: I mean, 20+ year-old cars leak oil from all kinds of places. If it's leaking in the front, (somewhere on the engine or oil cooler?) then oil ends up all over the back in short order.

 

Ok, I'll lay out some paper and see what I find..

Regarding the cat - I wasnt aware that it was incomplete...
Is running it like that going to mean exhaust comes out thru that hole? And, where should the air pump be located? I'm not sure I have one!

Cheers for the info,

Paul.

 

My guess it dowell pin leaking...... Are you sure its not engine oil?


John

 

It's really too clean to be engine oil - my engine oil is near black but this oil is a clear fresh oil colour... could it be transmission or diff oil?

I'm not too sure about oils - what sort of oil goes in the transmission and diff?

Thanks,