Porsche 928 transmission oil leaks

[@ericfischer8400]

I'm replacing mine this weekend. Thank you so much for this excellent video!

[@theinnovativegroup6580]

Do you know what the part number for that vent hose is by chance, or equivalent part?

[@theskpyle]

Hello Colin, do you have the specific details of the thicker O-ring you use for the Bowden cable housing to the transmission case? Thanks.

[@cjensan]

I'm afraid I left the shop already. I will try to remember to get the size on monday. Its a standard o-ring

[@theskpyle]

@@cjensan Not a problem, take your time. Once I finally get mine running, I will change the fluid and filter again after 1000 miles. I will install another O-ring then. Thanks!

[@arlorey]

Hi Colin, where exactly is the throttle quadrant and how to disconnect from there? Nice and timely video! Exactly where my leak is coming from. Thanks!

[@cjensan]

The throttle quandrant is on the engine.

[@theinnovativegroup6580]

you mention you do not need to remove the pan...how is this done without taking the pan off?

[@cjensan]

Undo the cable at the engine side and you can lift it up enough to remove with ease.

[@jeremygoodmurphy]

Thanks for the reply.. does the spring on the lever not just pull the rod back in?

[@cjensan]

​@jeremygoodmurphy it does, but the spring is very weak and the cable comes out of the end a bunch and is easy to rehook on and lift it back up

[@theinnovativegroup6580]

@@cjensan Beauty...i'll give it a try...thanks again!

[@theinnovativegroup6580]

@@cjensan Wow...doing this and adjusting the Throttle cable...totally different car! Thanks for the help!

[@peterschmidt1453]

Just got a major problem with my '87 S4. My engine radiator coolant appears to be contaminated with red oil, which can only be the transmission fluid. Is there a direct connection between the the transmission cooler and the engine radiator?. I haven't checked yet, but I assume if transmission fluid gets into my engine coolant I probably have engine coolant water backflow into the transmission fluid. I had always assumed these 2 cooling systems were separate from each other, do you know if there is a place where it's possible for these fluids to mix together at the radiator?.

[@cjensan]

The radiator has a cooler in the passenger side (LHD) end tank that cools the transmission fluid. You will require a new radiator. Please replace with a new CSF unit available from 928intl.com (Mark) or 928srus.com (Roger)

[@peterschmidt1453]

@@cjensan Thanks very much for the advice Colin, most appreciated.

[@arlorey2261]

Colin, Where did tou get the O-ring? Thanks!

[@cjensan]

It is a pretty common oring that one can pickup locally. Or you can contact 928srus or 928intl to purchase the factory unit.

[@harveyisd1]

Colin, Can you do this while the transmission is still in the car?

[@cjensan]

Yes. The video was taken in the car.

[@harveyisd1]

@@cjensan Thank you very much