it seems that my rx7 is leaking from the spark plug....it doesnt leak much i can still run about 2000-3000 miles before changing oil.......wat do you guys think?

 

I think your car is leaking from the spark plugs.

Wait, what's the question?

 

Oil can't leak from the spark plug. Post pics of your leak for us to take a look at, it's likely coming from somewhere else.

Dale

 

If it appears that oil is leaking down the side of the motor near the plugs, check for a small pipe on the top of the housing next to the oil filler pipe, on the firewall side of the pipe.

If it is uncapped, oil can leak out of there.

 

I guess it can be this. Iam having a oil leak as well, and i order this small cap for 3.00 USD

Filipe

 

You should also check the oil line to your turbo's... Follow your oil filler neck all the way down to the rotor housing and it should be sitting closest to the front of the car from there. If that fitement is loose...oil will leak down the side of your motor and get your plugs all gross.

 

okay thanx guys.....ill try to post up some pictures asap wen i have time

 

Yup, that's the one.

When I found it on my FD someone tried to tell me it was because the motor was built with FC housings.

That is not true, some FD housings have that pipe, and if not capped oil gets dumped everywhere.

You may want to remove the UIM and coils to clean the top of your motor, as there is probably a nice little puddle there.

 

^ Yep. I've seen some FD motors with that nipple as well. It's the FC design - might not necessarily be an FC housing, but it works.

Just cap it up. Good way to do it is to get the EPDM caps from McMaster Carr - they're heat and oil resistant. If you get ones from the parts store they'll fail within a month.

Dale

 

Those work just fine if you rub a thin layer of RTV in them before installing.

 

HI

Isn`t this nipple only for engine breathing?

I will put a cap on this because i want my oil leak done but i think Mazda could think in a better way of doing that, if not necessary should be eliminate on housing.

Ray at Mazda Malloy told me that it doesn`t do anything, but i think if this is there, something it does or should do.

Iam waiting for a cap and a lower IC pipe solve it. i also have O rings to oil pedestal and oil filler neck to do at once.

Thanks

Filipe

 

Again, as in the last thread, it's a crankcase vent. It's used on the FC's. The FD's have a different mechanism for venting the crankcase so that particular vent should be plugged. Mine was plugged from the factory.

If you want really want to be ****, you can connect a tube to it and join it to the standard FD crankcase venting lines with a T or Y splitter (or run it to a catch can).