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TR2/3/3A TR3A Crank pulley removal


Jedi Knight
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What are you working on now?
I would spray the crap out of it with wd-40 and some tapping with a rubber mallet.


Jedi Hopeful
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I would use PB Blaster, lots of it and let it work in for a while. I had a simalar situation I used a puller with a modified brace and lots of tapping... good luck!


Senior Member
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I used a bearing puller on mine, which I knew I was going to replace, which was good as I really mangled the thing getting it off.



Country flag
Thread the dog bolt back in and then use a bearing puller - hopefully you can be luckier than Mike and not bend things, sometimes they are stuck, but quite often just the puller will persuade it off with no issues.


Jedi Knight
All I can say is, "Ooooohhhh -- that really looks rusted-on there." The crank is worth a LOT more than the pulley. Be careful which you destroy in the separation process.


Great Pumpkin - R.I.P
I use a "harmonic balancer" puller, plus a bolt that fits into the threads in the crank (5/8 NF IIRC) and two bolts that fit through the holes in the hub. On my 3A, the crank nose was worn undersize, so I used Loctite to mount the hub on the crank. Took quite a bit of force to get it off, but the puller did it several times without damage to anything.

My puller only has 2 arms, but apparently they only sell 4-arm pullers these days. Certainly won't hurt if you want to use 3 or even 4 bolts, but two worked fine for me.


Jedi Warrior
What are you working on now?
I would spray the crap out of it with wd-40 and some tapping with a rubber mallet.
Hi Dan
Just pulling a crank out of a spare engine - was planning on selling it. No new projects (I have plenty).
Hope to see you at the Scottish Games in Pleasanton this weekend.



Jedi Knight
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We will be there on Saturday!
I have about 5 more LBC's coming. See you Saturday.
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