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Posted by: SirAndy May 12 2014, 09:51 PM

After replacing my broken speedo cable (torn in half) my speedo still wasn't working.
So i disconnected it at the angle drive and used a drill to drive the cable and the speedo worked just fine.

I then tried to turn the angle drive spade by hand and i was able to turn it while it was making a crunchy sounds.
I don't think i'm supposed to be able to turn this by hand. Anyone know for sure?

PS: Can i replace this with the oil in the transmission? What if i get the car at an steep angle, would it still leak?

Posted by: Bob L. May 12 2014, 09:55 PM

There's an inner drive and then the outer "angle drive" My angle drive went bad and I replaced it. No fluid worries. Fine now. Probably your problem.

Posted by: Jeffs9146 May 12 2014, 10:11 PM

I have had one go bad...many years ago!

As long as you put the new one in quick you should be fine! Yes some fluid will come out if you are parked at an angle and let it sit that way for a day, if you do it quickly it is not a problem!

Posted by: bdstone914 May 12 2014, 10:17 PM

If you need a good used one I have one for you at no charge.
Bruce

Posted by: McMark May 12 2014, 10:20 PM

It's dead. I'll replace it at WCR.

Posted by: Bob L. May 12 2014, 10:25 PM

QUOTE(Jeffs9146 @ May 12 2014, 11:11 PM)

I have had one go bad...many years ago!

As long as you put the new one in quick you should be fine! Yes some fluid will come out if you are parked at an angle and let it sit that way for a day, if you do it quickly it is not a problem!

The inner drive will leak if removed or if the seal goes bad. McMark has modified them to seal better. You can remove the angle drive without a leak. At least mine didn't.

Posted by: SirAndy May 12 2014, 11:33 PM

Thanks everyone, that's what i thought. It's toast ...

QUOTE(McMark @ May 12 2014, 09:20 PM)

It's dead. I'll replace it at WCR.

Posted by: balljoint May 13 2014, 04:50 AM

I saw an angle that had been drilled clean through by the gears grinding over what was probably a long period of time.

Posted by: Red-Beard May 16 2014, 02:14 PM

Make sure that the inner pinion is still in good shape. And the 914 and 914-6 units are different.

Posted by: bcsellie Jun 8 2020, 06:12 PM

Hey, Blaine again.

Do you still have a good/working speedo angle drive? BTW, thanks for the trigger points...

QUOTE(bdstone914 @ May 12 2014, 09:17 PM)

If you need a good used one I have one for you at no charge.
Bruce

Posted by: Matty900 Jun 8 2020, 07:11 PM

Ian just did an awesome video on McMark's improved speedo angle drive.
https://youtu.be/mfxcpw0YOsc

Posted by: porschetub Jun 8 2020, 11:17 PM

QUOTE(Red-Beard @ May 17 2014, 08:14 AM)