ltoolio

Hey all,
I'm a soon to be Shark owner (82), but I've got a problem I'm working on in advance.

While driving the car home from the C.O.'s house, the pin on my Rear Shift Rod sheared off.

Can anyone suggest what the ingress point is to unbolt it from it's rear anchor?

I've seen a couple of posts talking about it when it's out of the car, but nothing while it's still in the car.

Thanks!

WallyP

Are we talking about the pin that connects the long rod from the shifter to the short rod sticking out of the transmission? Ouch!

The coupling is under a rubber boot up in the tunnel over the exhaust. Access, from under the car, is difficult. Getting the pin out is difficult. Luckily, it rarely breaks - In fact, I don't remember hearing about one breaking before.

Get the car - supported safely! - to as comfortable a working height as possible. Wear safety goggles (not glasses - crap will come into your eyes sideways), get some good lighting, and be patient.

ltoolio

Yup. That's exactly what we are talking about. And it happened just (and I do mean just) as I pulled the car in the driveway. Hopefully not a sign of things to come

I don't have the replacement part, but I guess this is a bit of trial by fire, eh?

Thanks, Wally!

Dave928S

Can't see your photo, and not sure of what part you're talking about.

Here's a pic of all the components of the manual shifter assembly from front (L) to back (R) ... or are you talking about the gearbox selector shaft, which this assembly connects to at the rear?

Dave928S

Just saw Wallys post ... here's another pic of the rear coupler showing all the parts.

Is it #3 which is broken? ... if it is, then it's the first time I've heard of one breaking too. The bushes wear out, and then fall out, which can give the same symptom of instantaneous box of neutrals.

WallyP

I am still amazed that the stout pin would fail. More likely that something else failed.

Can you describe what happened precisely and verbosely?

ltoolio

Here's (hopefully) a better picture:



I colored in where the pin is sheared off. If I took a picture of the shift arm while removed from the car, you'd see the pin still sitting in the lower hole.

Arrow points to it on Dave's pic:



Does that help?

Dave928S

OK ... that's clear. Obviously the rear shift rod front pin has fatigued and broken off. No point trying to weld on as alignment will be difficult, and welded repairs often fatigue and break in the same spot, on those sort of connections.

Have a really close look to check that the other one hasn't fatigued and cracked. As the rear one has broken, this is a possibility.

You'll need to replace the rear shift rod at least. Try getting a secondhand part (http://www.928intl.com/), as this is an unusual failure, and a used part is likely to be fine ... and cheaper ... although still worth contacting 928'sRus to get a new price.

Replacement is going to an absolute PITA because the foam will be difficult to get past, without trashing it, and room to manoeuvre is limited.

I'll take a few measurements tomorrow, unless someone beats me to it, and suggest a way of changing it. Easy with torque tube out .... PITA or perhaps impossible with it in.

ltoolio

Thanks for the deets, Dave.

Robot808 already has one being shipped en-route to my house, as it's his shark I'm buying. I've got some new bushings coming as well, and the top pin seems to be in good shape through visual inspection and via some tests I did on it while the shift arm was still attached.

I guess this is a firm welcome to ownership of an older 928, eh?

Dave928S

^^ It could be worse ... my baptism of fire with my '82 was a broken ring after only owning it for a few weeks.

I'll get back to this thread in the morning after a crawl under the car.

WallyP

Wally, "Are we talking about the pin that connects the long rod from the shifter to the short rod sticking out of the transmission? Ouch!"
itoolio, "Yup. That's exactly what we are talking about."

OK, so that's not what we were talking about...

Still a royal PITA to fix. And the info in Post #2 will still apply, because you have to get that end loose.

At first glance, looks like there are two approaches:

A) Drop the torque tube. Disconnect the rear. Get the shift rod out with as little damage to the foam as possible. Buy a rear shift rod. Install it. WYAIT, replace all of the wear parts on the linkage. Reinstall the torque tube. WYAIT, check the bearings, etc.

B) Disconnect the rear. Rotate the rod for access. Make a new pin. Drill through the arm where the broken pin was. Have a skilled welder TIG or MIG weld the pin in place. Disconnect the battery and unplug all electronics first.

Neither would be fun.

Edit: It looks like Plan A has been selected. Good luck with the job.

ltoolio

I'm taking this as a positive (or at least trying to).

Since I can't drive it right now (lack of title / registration / plates aside), it's letting (forcing me?) me instead to work on cleaning up the pod / console / other leather on the inside.

Also - if you are going to climb under, could you snap a couple of pics while you are there? I don't have the car jacked up yet since I'm doing all the internal work, so I'd love to see what's ahead of me underneath.

ltoolio

Consider that the ignorance of a new owner. Thought we were talking about the same thing...obviously not.

PITA? Or mechanically difficult?

soontobered84

PITA

ltoolio

Just to confirm here based on some reading I've been doing while on Conf Calls today -

I'll need to drop the whole Tranny for this?