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350Q Damper Drive Hub Removal

November 20 2017 at 3:37 PM
Tom  (Login TomB55)

Rebuilding my 350Qs in my 1983 Catalina 350. Have engines out and beginning disassembly. Having no luck in removing the Damper Drive Hub on the engines. Have tried the standard pulley puller, but no luck. Thinking of some heat, but before I try a torch to heat up and expand damper I thought I would seek some other answers.

Thanks for reading and any suggestions/help would be appreciated.

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(no login)

Have you tried a harmonic damper puller?

November 20 2017, 4:41 PM 

They are made for that and can generate a lot more pull than the pully or gear pullers.


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Greg Smith
(Login gregcarolsmith)

Torch It

November 23 2017, 12:13 AM 

I had to heat it up quite a bit while I had the puller on it, after a while it popped off. You'll need a oxy acetylene torch, my propane one wouldn't cut it, had to borrow a friends.

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(Login Mardam)

I've been lucky in the past on stubborn taper flywheels with Powermix 3100

November 23 2017, 4:57 AM 

A mixture of propane and buthane available in canister.
It has a special nozzle that allows you to add air thus oxygen to the mixture and this in turn makes the flame burn at a higher temp.
It makes steel glow red without the need of oxy-acetilene.
Don't now if it's available in the US though...
Have a nice day,


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