CVR_Rally

I'm doing a lot of work to my 87S including all new front seals. The crank seal needs replacing plus I have a new geared sleeve to install. However, the bloody thing is stuck hard. I can only get about 1mm of movement.

So far I've tried pullers that are causing a little damage so I don't want to get to aggressive. It's pretty frustrating. Any tricks from those that have run into this before?

Chris

odonnell

Mine have always slid out using a big pair of channel locks.

royalschwarz

I can't remember ever not having to use a rubber mallet to loosen one up before. Just to break it free so a gear puller will pull it off easily.

V2Rocket

where do you get a 5.5" channel lock? LOL

rubber mallet against the face of the pulley (perpendicular to the ground), tapped around in a circle, and a few taps on the belt groove side (to give it some radial jiggling) between gear puller sessions usually gets it.

penetrating oil helps unstick from the woodruff key too.

odonnell

Whoops, I was thinking about the oil pump drive sleeve. Pulley itself comes off with 4-off M6 bolts. The drive gears for the belts just slip off but the woodruff key can cause them to stick. I would tap them inward lightly to break them free. And tap on the edges in a circular motion lightly until you can work it off.

CVR_Rally

Ya I’ve been doin that form two days and it won’t budge. I’ll just keep at it.

Tom M'Guinn

You took the big bolt out of the crank, right? Maybe it got off-center a bit -- a puller "should" get it off...

CVR_Rally

Of course. A puller isn't really getting behind it but that's my only option. It probably hasn't been off in 30 years so it's a bit stuck to the crank. The balance shaft gear I've had off before so that was no problem.

V2Rocket

i misunderstood originally - i thought you were fighting the accessory (AC/alt) pulley, not the timing belt drive gear.

yea, that one gets sticky sometimes.
can you (carefully) apply heat with a mini torch of some kind ?

Tiger03447

Can you get a split plate gear puller in behind the pulley?that might limit the damage and give you some good pulling advantage.

Tom M'Guinn

Oh I misunderstood too. If memory serves, I had to grind and modify a puller to get a good grip on that one.

H.F.B.

I'm doing the same on my 968. Yesterday I tried to unsrcew the M16x1.5x60 Crankshaft Bolt (Torque: 210 Nm). But unsuccessful, my socket broke.
Now I'm not sure if it's not a left-hand thread.

Could you do my a favour and confirm, that's a normal right-hand thread on the bolt. Thank you.

Good luck removing your stuck crank pulley. I hope mine will go off easier.
Tomorrow I will buy another/better socket.



failed 24mm socket

bkrantz

Socket brand?

V2Rocket

HFB i 100% confirm the crank bolt is a standard "righty tighty lefty loosy" thread.

not even $2 harbor freight (Taiwan) sockets break doing that though...

H.F.B.

^^^^
$2 Taiwan socket.


^^^
Thanks, got it out. The "No Taiwan socket" did it.



crank pulley