HELP! Can't figure out how to remove the input shaft seal on a G50 gear box.

mthomas58 · 05-08-2009, 12:25 PM

How do you get the old seal out???

carnutzzz · 05-09-2009, 06:40 AM

DO NOT accidently punch it into the case and then have to take it somewhere to have it removed.

Not that I've ever seen that happen.

jevvy · 05-10-2009, 12:22 AM

I think i just levered mine out carefully although it wasn't as deep as yours. Could you try a seal picker?

A also then tapped the new one in too far and have to take the diff cover plate off to retrieve it which wasn't really too much ball ache.

jevvy · 05-10-2009, 12:28 AM

This is what it looks like when you pull the diff to retrieve the seal:

Dixie · Dixie's Garage

Lots of cussing and patience is what you need. I cut a seal puller down so it would fit in the bell housing. That helped some. As I recall, the puller was of limited help. The hooked end was till too big to clear the input shaft. It did get the edge of the seal bent enough that I could get a small screw driver between the case and the seal. Once I could get to the edge, so light chiseling with a hammer and the screwdriver got the seal deformed enough that it came out.

That little seal is a PITA. Heck, it might just be easier to drive it into the case and then remove it from the shaft. Oh, and they all sit that deep. The guide tube has a ridge that goes into the case a bit.

kodioneill · kodioneill's Garage

try screwing in a course thread sheet rock screw and pulling it out with a pair of diagonal cutters.

mthomas58 · 05-10-2009, 12:07 PM

Quote:

Originally Posted by carnutzzz

DO NOT accidently punch it into the case and then have to take it somewhere to have it removed.

Not that I've ever seen that happen.

This is exactly what happened. I tried punching it gently just to break the seal hopeing I could then pull it out. Carnutzzz made me do it!

My friendly neighborhood mechanic was able to fish it out by snagging it with two hefty gauge puller hooks with T-handles. After snagging it and bringing back to the opening, a few sharp yanks and it was out. Nothing like a successful outcome when on the brink of disaster.

Jetjockey · 11-06-2009, 01:44 PM

After reading these posts I am really scared. The RMS removal was a lot more than I bargained for. I have the input shaft seal already but have been burned more than once by fixing something that 'wasn't broke'. I may just leave this to a professional and bring them my G-50.

MBEngineering · 11-07-2009, 12:04 AM

HI mthomas58
you would have needed this tool, but

and this to fit the new one,

regards mike

mthomas58 · 11-07-2009, 02:15 AM

Quote:

Originally Posted by MBEngineering

HI mthomas58
you would have needed this tool, but

and this to fit the new one,

regards mike

Now that's the right tool for the job! This thread brings back some bad memories. Here is the type of puller hooks that my mechanic used to snag the seal and pull it out. If the gauge of the hook is small enough you can slip two hooks on opposite sides of the shaft, snag the seal and yank it out. Of course by going down this path you are commited to replacing the seal as it will be damaged.

Assenmacher M0333 T Handle Puller Hooks - eToolDirect

mthomas58 · 11-07-2009, 02:37 AM

Good news! There is one of these special tools available on eBay for $65. I just might have to pick one up to add to my special tool collection!

Porsche 911 Drive Shaft Seal Puller Transmission Tool:eBay Motors (item 110424418872 end time Nov-12-09 10:40:19 PST)