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Posted by: last337 Jun 29 2015, 07:51 AM

I am troubleshooting the leak around the speedo cable and after cleaning it, it looks more like the leak is coming from the set screw itself. I havent put a wrench on it or anything yet but it looks like there is a crush washer on the screw itself. Is it possible this is the culprit and not the drive itself. I suspect this because it appears to be wet on the top of the drive shaft itself. I cant seem to find a part # for that crush washer or whatever it is. Also, what is the torque spec on that? I saw reference somewhere to like 9#

Posted by: Shadowfax Jun 29 2015, 09:09 AM

Not to say it isn't leaking from the set screw, but the part itself might be the culprit. Check out this link when you get a chance: http://shop.914rubber.com/Speed-drive-busing-with-double-seal-NO-LEAKS-90131824312-901318243.htm#

Posted by: last337 Jun 29 2015, 09:14 AM

I saw that as an option but it looks to be wet above the angle drive itself which is why I suspect the set screw. I cleaned it all off again yesterday and will have to inspect closely after leak continues to be sure.

Posted by: Shadowfax Jun 29 2015, 09:18 AM

QUOTE(last337 @ Jun 29 2015, 10:14 AM)

I saw that as an option but it looks to be wet above the angle drive itself which is why I suspect the set screw. I cleaned it all off again yesterday and will have to inspect closely after leak continues to be sure.

Sounds good. Keep us posted.

Posted by: McMark Jun 29 2015, 09:56 AM

Sometimes this is from the bore getting worn out and allowing the speedo-drive to wobble. The double oring speedo drive an help by stabilizing the drive in the bore.

Posted by: last337 Jun 29 2015, 10:01 AM

Well I have yet to get either plug out and am waiting on my 17mm to come in so hopefully I can at least get those to let go. Will start hitting them with some pb blaster or something soon.

Posted by: The Cabinetmaker Jun 29 2015, 10:37 AM

You won't lose much fluid by removing the drive. Not necessary to drain trans

Posted by: last337 Jun 29 2015, 10:44 AM

QUOTE(The Cabinetmaker @ Jun 29 2015, 11:37 AM)

You won't lose much fluid by removing the drive. Not necessary to drain trans

I am just so hesitant to mess around back there with all the stories of drain/fill plugs getting stuck. Ugh!

Posted by: The Cabinetmaker Jun 29 2015, 11:02 AM

Just make sure you can remove the fill plug before you remove the drain plug. Like I said, you won't lose any fluid by removeing the speedo drive.

Posted by: last337 Jun 29 2015, 11:05 AM

QUOTE(The Cabinetmaker @ Jun 29 2015, 12:02 PM)

Just make sure you can remove the fill plug before you remove the drain plug. Like I said, you won't lose any fluid by removeing the speedo drive.

Okay thanks! Tracking these leaks down one by one!

Posted by: Mikey914 Jun 30 2015, 08:06 AM

Got a replacement unit with both o rings and the new shat drive here -

http://shop.914rubber.com/Speed-drive-busing-with-double-seal-NO-LEAKS-90131824312-901318243.htm

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914World.com _ 914World Garage _ Speedo set screw leaking?