Removing harmonic balancer.

[fonzo]

Tried a 1/2 inch rattle gun. on a 100l 5hp air compressor....FAIL. Tried to use a breaker bar Fail. bend my sidchrome breaker bar when i cranked the engine. its that tight....any ideas?

[The1]

you'd be outta luck if those two dont work, i have heard of people using an oxy to heat up the bolt a little then give it a whirl.

[nstone63]

I had to keep going with mine by using the breaker bar and cranking the engine.. maybe just keep alternating those two methods? try and gradually work it loose

[fonzo]

Ok so its deffently a bastard of a thing to remove. and i havnt got something outta the ordanary

[fonzo]

if i heat that bolt am i gunna wreck shit?

[The1]

i havn't done it myself, but im guessing the idea of it was to heat it up enough that any greases would start to let go which wouldn't be very hot, would only take a second or two from an oxy

[matty m]

try put a meter of pipe on the breaker bar

[fonzo]

tried it all

[D3V14NT]

I jammed a metal plate in between the flywheel and the starter motor opening. Then preceeded to place a breaker bar on the bolt with a bit of pipe on the end and belted it with a hammer. Cracked it after a few spirited hits.

[Pub247]

Itry the above method if using engine and breaker bar dont work i usually let the breaker gain some momentum before it hits the chassis as you want that crack to happen

Heating the bolt aint ever going to work heat expands metal go buy some loctite freeze and release then retry the above method or engine cranking method garuntee itll work

[bpefi]

Hey - you need a good sized punch & a heavy hammer 1/4 pounder is best as anything else will do nothing & give the end of the bolt a couple of almighty whacks - should be enough room in front of the engine - don't leave breaker bar loose as it can fly off & damage something - use a single hex socket as well if you can. Heating will do nothing unless it can work its way down the bolt & you will damage the harmonic balancer this way. More than likely it might have loctite on it & if that is the case heat will be the only thing - just do not go overboard with it.

[fonzo]

Rattle gun and a bernzomatic gas torch headed the head of the bolt hit it with the rattle gun and off she came

[fonzo]

Didnt heat nothing else but the bolt for about 5 second.

[Andrew426]

Use a 3/4" bar with a pipe over it

[Brett_jjj]

The easiest way Ive found to loosen this bolt is to fit a breaker bar and socket on the bolt,rest the breaker bar on the chassis rail or on the ground and crank the engine over.Ive done it heaps of times like this and it works excellent.Its a good idea to remove the EFI relay or engine fuse so the engine can only crank over,you dont want it to actually start whilst doing this..

[immortality]

i use a 3/4" socket set and get em loose every time. i also have a steel bar with a couple of bolts in it that fits into the holes in the balancer that i use to stop the engine turning over when using the afore mentioned socket set.