Stop me before I touch another transmission!, A story of many broken hard parts. Options

[bryanc]

So, here's my 914 story with some recent updates.....

Background:
in 1992, I bought a 914 rust-bucket that had just had the tranny rebuilt and the PO forgot to put oil in it. Turns out transmissions don't like that. I bought it for a steal and re-rebuilt the tranny.

It lasted for about 30 miles. Didn't torque the mainshaft bolt correctly and it unscrewed itself through the tailhousing.

In 1994, I had bought a daily driver 914 (my blue car) and it got ran over in a parking lot. So, while it was being repaired, I decided 'why not rebuild the tranny' since it had the familiar 2nd gear crash.

It lasted about 1000 miles. Leaked, ran out of oil, you know the rest.

After that, I bought a good used tranny and vowed to never open it up. It still works (knock on magnesium case)

Today

When I bought the yellow car in my avatar, the PO gave me a second gearbox that the mainshaft bold had backed out of (sound familiar?). He said 'there's lots of shavings in there so it needs to be gone through'. Ok, tonight I decided to go through it....

It's never that easy....

[ClayPerrine]

It takes some special, very expensive tools to set the pinion depth and backlash. I found them on e-bay years ago, and paid through the nose to get them.

If you want to box it up and send it to me, I will rebuild it. I have done a bunch of them, and they work fine.


In answer to your question, the ring gear and the pinion gear are a matched pair, and have to be kept together.