20 replies to this topic

[postve]

Hey guys

Anyone run into this issue as wanting to replace the woodruff key on my timing chain sprocket but I can slide only so far and that’s it, thinking maybe a mini puller to get the rest of the way?

[1968andyf]

Your keyway looks to have a little burr/ damage to the edges, push the gear back and gently file clean with a needle file

[nicklouse]

Push the gear back on and clean up the key.

[postve]

Thx guys but it has to be replaced as got a super charger on my a series and this is a problem waiting to happen - just cannot get the damn thing off

[nicklouse]

Thx guys but it has to be replaced as got a super charger on my a series and this is a problem waiting to happen - just cannot get the damn thing off

Like I said push it back on a d clean it up.

 

if it does still not come off make sure it is seated correctly. It sits in a cup and can move. You might need to give it a tap. Actually look at it and the angles. There should be none.

[GraemeC]

Looking at how far it has already come over the key you may get away with a couple of pry bars gently levering it off against the timing plate.
But would certainly be worth pushing it back and cleaning any burrs of the key first.

[postve]

Thx guys but it has to be replaced as got a super charger on my a series and this is a problem waiting to happen - just cannot get the damn thing off

Like I said push it back on a d clean it up.

if it does still not come off make sure it is seated correctly. It sits in a cup and can move. You might need to give it a tap. Actually look at it and the angles. There should be none.

Nick, it’s really not an option as edges are worn and the oil thrower has been damaged as a result so again it has to go. All I am looking for is any thoughts as interestly enough it slides easily half way and then gets wedged and won’t budge - I have a pry bar but proceeding carefully as to not do any damage - still won’t budge

By the way, I marketed the sprocket as advised make sure it does not turn and mess up CAM timing - fact or fiction?

[postve]

Looking at how far it has already come over the key you may get away with a couple of pry bars gently levering it off against the timing plate.
But would certainly be worth pushing it back and cleaning any burrs of the key first.

m


Same response to Nick - Graeme - and again thx for feedback. We are going to try and file it down across the top and see if that helps, also looking for a mini puller as the final solution- thoughts welcome

[GraemeC]

I'm not sure what you think isn't an option?  No-one is suggesting you leave anything on.

 

Yes, if the cam rotates you could alter the timing.

[postve]

Thx Graeme, and mis-read you’re post

Edited by postve, 28 July 2021 - 12:38 PM.

[RooBoonix]

I think you're misunderstanding what Nick and Graeme are suggesting, they're not saying to clean it up and keep it on there.

 

They're suggesting you push the gear back onto the crank so you can access as much of the woodruff key as possible, file the edges of the woodruff key (which can be seen to have burrs on in the photos) and then try to remove the gear again.

 

And Nicks other point regarding the shape of the key and movement within the slot in the crank could also be a problem as the woodruff key can rotate and jam the gear on solid, so make sure the key is sitting dead flat. If the woodruff key is rotating in the crank, no amount of pulling will remove the gear and you'll just end up causing damage by using a puller.

[postve]

Thx Roo and I certainly did mis-read both posts and wondering what are my options if key is rotating? I am thinking maybe have to remove engine mounts on the same side, raise engine a bit, and maybe chisel it out. Thinking might be too risky but open to suggestions.

Or, possibly drill pin holes in key sections that are exposed and again try to chunk it out?

Sorry I did file edges and top already, no luck

Edited by postve, 28 July 2021 - 12:45 PM.

[nicklouse]

Thx Roo and I certainly did mis-read both posts and wondering what are my options if key is rotating? I am thinking maybe have to remove engine mounts on the same side, raise engine a bit, and maybe chisel it out. Thinking might be too risky but open to suggestions.

Or, possibly drill pin holes in key sections that are exposed and again try to chunk it out?

No you just give it a tap with love hammer.

 

look at it and think how it fits. If the camshaft is out the key way is exactly the same. Pull the key out and have a good look.

Ps you might have to give the key a tap to get it to move.

[postve]

Thx again Nick and getting the hammer in the right position will be tricky but is a logical option. Let me give that a try today and will advise-

[postve]

Humm tried a few taps and nothing I am worried as per Roo’s suggestion that it has rotated and jammed - wondering what options at this point as I continue attempts to remove it