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how do i get a harmonic balancer off an engine out of car?

Discussion in 'VT - VX Holden Commodore (1997 - 2002)' started by Brysha89, Oct 7, 2019.

  1. Trevor loves holden.

    Trevor loves holden. Active Member

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    comments say the following so take your pick.

    Use a 15/16 not 24 its much firmer, 1/4 ” Un. Bunnings don't have them. Fasteners Australia do and get 65 mm plus washers to pack them out on the puller. High tensile of course.

    That thread isn't 1/4inch. Its fking 6mm metric

    1/4 inch is 6.35mm.
     
  2. _R_J_K_

    _R_J_K_ Well-Known Member

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    Use the rattle gun, although if the bolt is truely stuck in there the rattle gun may not work and you'll have to use a huge breaker bar (this has happened to me with a 500nm rattle gun). 3 claw puller is fine as long as you put all the claws behind the balancer and the bolt is totally loose and you've unscrewed it about a centimetre, just make sure the centre screw does't slip out of place. Old school trick is to drill a small dimple 2 or 3mm deep into the centre of the pulley bolt. IMO if it can't handle that it's kinda time for a new one anyway.

    Check the timing wheel on the back of the balancer doesn't have any teeth bent in after you do it too.
     
    Last edited: Oct 8, 2019
  3. Trevor loves holden.

    Trevor loves holden. Active Member

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    Mine puts out 1,112 Nm max torque, working torque 881 Nm twin hammer and removes it fine, I don't know if that freeze your nuts off works on bolts but applying heat will help. If it turns your motor over can you remove the sump to lock the crank up.
     
  4. Brysha89

    Brysha89 Member

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    ok thanks for the tips ill try it today if the weather permits its on and off raining atm if it clears up ill go do it but looks like maby a day with no rain expected to do it as its also cold and i dont want to be wet and freezing :)
     
  5. Brysha89

    Brysha89 Member

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    one more quick idea will this work finnish bolting rocket covers put water pump back on block water pipes and throttle body put spark plugs in to build up pressure? or wont that work
     
  6. Brysha89

    Brysha89 Member

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    to stop engine from turning over?
     
  7. _R_J_K_

    _R_J_K_ Well-Known Member

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    Won't work, just gives the engine compression but won't stop it turning over (even the compression won't add benefit), especially at the force you require.
     
  8. Brysha89

    Brysha89 Member

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    ok thought it might help as there is moor resistance to turn the bolt anti-clockwise as on a wrench with 24mm socket it just turns engine over
     
  9. Brysha89

    Brysha89 Member

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    oh yes one more thing while ur looking at my posts R_J_K_ my top swap that i had problems with fuel was the ecu was not correctly pared to car and is now needing a dyno tune mechanics fault didn't pay for it to be fixed the air intake has been reduced and now its getting too much fuel hence it needs a dyno now, i even explained to the dyno tuners that i have a top swap and what i did to it and they aggree and say too that it will be fine once dyno
    d and fuel is adjusted to correct levels the reduced air intake will help preserve the crank pistons and other stuff by reducing the combustion of the mixture
     
  10. Brysha89

    Brysha89 Member

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    i had to bring that up srry as it was confirmed be the dyno tuner that a reduced air and fuel mixture will put less stress on the lower end as he put it. as i told him what i had done and what im hoping for at the end result.
     
  11. Brysha89

    Brysha89 Member

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    and i thought i can use the large 3 claw one ty R_J_K ill do it slow. what if i pull it slightly out and put some sort of metal under the claw to the acutal crank it sits on then pull it out to keep that bearing in side?
     
  12. Sabbath'

    Sabbath' Redblock Jesus

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    [​IMG]

    These power bars work wonderfully. Bit on the expensive side though for a once off use if you cant borrow one.
    Is there any way of putting the flywheel on, even if it has a few busted bolts just to hold it there?
     
    losh1971 and Lex like this.
  13. Brysha89

    Brysha89 Member

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    in the spare engine all blots were snapped so i had the thread doctor come out he removed 2 and said its un repaiable so asked him to stop
     
  14. Trevor loves holden.

    Trevor loves holden. Active Member

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    Just remove the sump and lock up the crank with something like pipe wrench long as you don't need the crank.
    breaker bar and 2m pipe should crack it if you can keep the motor from tipping over while you pull.
     
  15. losh1971

    losh1971 Well-Known Member

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    I might have missed something but a rattle gun turning the engine over on the end of a crank bolt instead of undoing the bolt seems odd. The compression of the engine should provide enough resistance to rattle it off.
     
  16. Brysha89

    Brysha89 Member

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    today looks like an ok day ill get out and see how i go
     
  17. immortality

    immortality Home of the smoky breakfast Bacon! Staff Member

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    Take out a spark plug and push a whole lot of rope into the cylinder then turn the engine over until the piston can't go any further and then try and rattle of the crank bolt.

    Edit: also, chances are the threaded holes in the balancer that are used for the puller will be filled with crap and probably a little rust so the bolts won't screw straight in.
     
    Last edited: Oct 9, 2019
  18. Trevor loves holden.

    Trevor loves holden. Active Member

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    That's better than pulling off the sump, don't know why I didn't think of that as I do that when I rebuild lawn mowers to undo the crank bolt.
     
  19. Brysha89

    Brysha89 Member

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    problem is atm i dont have a rope handy ill have to go get one if it spinns i have not tryed as yesterday was raining on and off so i took a miss as to going out and doing it (Don't want to get sick)
     
  20. Brysha89

    Brysha89 Member

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    well rope down the spark plug hole dose not work too well i now have rope stuck in a bolted down head, Fed rope down spark plug hole like suggested worked 1st time 2nd time its now stuck dont know how didnt fray or damage rope 1st time the rope now wont pull out and looks like im up for new gaskets and bolts :O (FYI DO Not Ever Stick A Rope Down Spark Plug Hole No Matter Who Tell You)
     

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