Matts944

Well we've hit our first road block. I took her out today for a short ride and bath and when I came home and lifted the hood I found the 2 valleys next to the oil fill filled with oil (see picture below). It seems to be the AOS seals but Im not sure. I haven't looked in the J boot yet. What says the forum?

https://i.imgur.com/Y5z1gBA.jpg

This picture was taken after I soaked up the oil from the valleys but you can clearly see it.

This is under the intake just above the previous picture.

https://i.imgur.com/rKLZVLC.jpg

Matts944

Well even though it's midnight here I couldn't help myself, pulled the J-boot and there's oil in it. I also checked the balance shaft cap and it's super loose and has oil around it. So for that I'll use the grey hondabond but for the AOS I guess I need to order the O-Rings.
Couple questions...
Is my analysis correct about the oil in the J-boot?
Will it hurt it to drive it this way until I get the o-rings in? It's my DD.
Autozone sells many oil resistant o-ring kits, will those work?
If not can someone link me to the Pelican set for my 87 NA?
Would this contribute to my hesitation during acceleration I've been getting?
Thanks everyone.

John_AZ

Nice pictures.
Oil cap seal:
http://www.pelicanparts.com/cgi-bin/...701-846-40-M17

Oil Separator --AOS seals. Get OEM. 2 different sizes, Top and bottom
Get oil fill tube seal as well.

http://www.pelicanparts.com/cgi-bin/...ator&x=49&y=14

Note. Intake has to be removed. Get all intake seals, injector seals, hoses under intake if rotted, new clamps, new vac hoses, ++++

Then rebuild the throttle body with a $20 kit.

Double check all parts listed to match your car.

A good start.

GL
J_AZ

mytrplseven

A quick throttle shaft "O" ring removal tool is a 16D construction nail that has been sharpened to a fine point and then bend the tip 90 degrees at around 1/2 inch long. It'll fit in the shaft seal recess area and makes it easy to pick out the hardened pieces of the old seal. Lightly lube the new seals before installing. Also make sure there are no burrs on the shaft before re-inserting into the throttle body or it'll nick the new seals.

Matts944

Thanks J! I guess my main concern at this point is will it hurt it if I drive it? She's my DD back and forth to work. As long as I watch my oil levels it'll be ok until I get the seals in the mail, right?

Player0

When I had leaks like that, it was a combo of the AOS seals, a warped oil filler cap (new gasket didn't help, needed a new cap) and the dipstick tube gaskets. I had to pull the entire turbo to get to mine, so you're pretty lucky

If the oil isn't spewing out and hitting anything exhaust related, I'd say it'd be fine to drive like that for a little while.

Matts944

Damn. I just bought the seals and passed on the dipstick seal. Hopefully I won't need it. It's wet around it but I contributed that to the AOS.
Do you think that oil in the J-boot would cause it to hesitate occasionally during acceleration? Seems to me like that would throw off the fuel/air ratio but I could be wrong.

Player0

I get oil everywhere, j-boot, intake, intercooler, but my car runs like a champ. So unless it's really fouling your plugs, I wouldn't think so. I think that's just a 944 thing, though a lot of people run catch-cans.

Maybe you just need a tune up or a new o2 sensor or something.

Matts944

I just did a full tuneup so I'm good there. I didn't touch the o2 sensor but the PO ran 3 inch all the way back from the headers so I can see he took the time to add in the o2. I'm assuming it's good because it looks new but I don't like assuming.
I did change the plugs and noticed 1 of the plugs was in really bad shape. She runs a lot better since then but still the occasional stutter.

88Silver924S

Q.) What car/engine do you have?

The plastic "male" part of the AOS has mold flashing that on the factory seals left small cuts on the inside diameter of my seal which I suspect contributed to oil weeping. I used a razor knife to shave this flashing down to a smooth round bore. New seals, no more leaks.

I believe the dipstick "seal" is just a common o-ring that should be easy to find but I don't recall exactly.

Good luck and have fun.