removing harmonic balancer

[neilo 2]

Hi I am new to this forum, I am in the process of changing over motors in my vp but I have to remove my harmonic balancer pulley. I have made up a three hooked puller but this failed to budge it and finished up springing off and it distorted the metal on the front of the pulley.I noticed there is a threaded section in line with each of the three holes, are these there for fitting bolts for the removal of the pulley. The only thing is the threads are very small in diameter meaning the bolts would be very thin, whether they would be strong enough who knows. Any ideas, apart from going to the wreckers and getting another one. thanks Neilo

[vq~gangsta]

I did mine a few years ago. I went to a cheapy hardware store and bought a harmonic balancer puller for about $15. It makes the job as easy as hell!!!

If you've distorted your pully at all you'll need to replace it. The pully needs to be completely evenly weighted or it will vibrate like hell when your engine revs hard.

[05 VZ SS]

vq gansta...Do you know the correct bolts to put in those holes? I heard they are an M6 thread, but don't know how big they should be...

[samuels]

Hi I am new to this forum, I am in the process of changing over motors in my vp but I have to remove my harmonic balancer pulley. I have made up a three hooked puller but this failed to budge it and finished up springing off and it distorted the metal on the front of the pulley.I noticed there is a threaded section in line with each of the three holes, are these there for fitting bolts for the removal of the pulley. The only thing is the threads are very small in diameter meaning the bolts would be very thin, whether they would be strong enough who knows. Any ideas, apart from going to the wreckers and getting another one. thanks Neilo

under normal service,the harmonic balancer should just slide off,with the aid of 2 screwdrivers,carefully prising from the back of pulley.if it is tight,then a puller is required using suitable bolts,and yes from memory M6 are the bolts

[05 VZ SS]

Yeah, I heard M6 are the thread bolts, but what about the diamter of the screw?

[samuels]

Yeah, I heard M6 are the thread bolts, but what about the diamter of the screw?

geez..you got me on that one..been awhile,got to go out in the workshop later i'll check one out.....
good being your own boss......not much happening today,putting feet up

[05 VZ SS]

Yeah, I only ask difficult questions... think my HB is gone..as when you put the belt on properly, it slips off one notch...And it wobbles too..Might check and see if its still tight this weekend....Hence why I would like the diamter of the bolt for the M6 thread please...

[samuels]

Yeah, I only ask difficult questions... think my HB is gone..as when you put the belt on properly, it slips off one notch...And it wobbles too..Might check and see if its still tight this weekend....Hence why I would like the diamter of the bolt for the M6 thread please...

been out to workshop.....i only have VN pullies,so i can't help with hole diametrs for the VP...sorry,(VN series 1) whether theres a difference in pullies from VN to VP i can't remember....

[Doctor Bob]

VN series one will slide off without a puller.
later ones need a puller, the three bolts are 1/4" unf & are plenty strong enough to get it off, after all the factory tool uses them.

Rob

[05 VZ SS]

yeah, I have vn series one, but first time i took it off, it needed a puller, which i borrowed from a mate, but, as they say, sh!t happens and I no longer speak to this mate so can't borrow the tool no more.. So, the three bolts to pull it off are a 1/4 in M6 thread...Right..Tops. Thanks Guys...P: Sorry to hijack your thread Neil 0..Didn't mean too..But hope this helps..

[samuels]

yeah, I have vn series one, but first time i took it off, it needed a puller, which i borrowed from a mate, but, as they say, sh!t happens and I no longer speak to this mate so can't borrow the tool no more.. So, the three bolts to pull it off are a 1/4 in M6 thread...Right..Tops. Thanks Guys...P: Sorry to hijack your thread Neil 0..Didn't mean too..But hope this helps..

VN series 1 don't have any bolt holes....only the big one that holds it on,thats why i said under normal service conditions,they should just slide off, with an aid of a couple of screwdrivers behind it in a non damaging spot if it is a little hard to get off with hands...

[neilo 2]

Thanks for all of your help I got some bolts today and rigged up a puller using the bolts. Unfortunately once pressure was applied the bolts stripped.I went back to using my three pronged puller on the front plate and eventually the H B came off, whether it is usable I dont know, it is badly distorted where the hooks of the puller contacted the front plate. I think the reason this was so hard to remove is the car has had some sort of front impact,I noticed there was a sizable dent in the front plate, probably jamming the HB in position.
I think I will be looking for a replacement just to be on the safe side. thanks again for your assistance, Seeya Neilo

[05 VZ SS]

My series one has bolt holes....Trust me...

[Doctor Bob]

the bolts are 1/4" UNF, they cant be M6

[samuels]

My series one has bolt holes....Trust me...

i'm not doubting you.....it's just that when i went out to work shop,i have 4 VN's laying around,and they all have the one bolt,i was picturing the one you was talking about,maybe i was picturing the wrong one like the earliest of the commodores now they are M6

[Keesh]

the um series one balancer if replace with a genuine one has to be replaced using the series 2 one.. the bolt and washer need to be replaced wit hthe series 2 one as well or something.. its always a good idea to use a puller.. the reason mine was ###ked was cause some idiot b4 i owned the car tried to pull it off with a flat head.. mine was mint on the outside but on the inside teeth were bent and the counterweight was moving around

[05 VZ SS]

Ok...So, mine could have already been replaced at some stage...Interesting....Well, will most prob take a look at it this weekend, and mine has developed a wobble...Rang Holden the other day and they wanted 315 for a genuine one, but they don't have any in stock any more...Might have to take a trip to american autos...

[265grunt]

Yeah, I heard M6 are the thread bolts, but what about the diamter of the screw?

M6 is the diameter of the bolt, the only thing that changes is lenght and pitch either course or fine.

the s1 prob is unc\unf seeing these motors are from us where they dont use the metric system. but anything the holden designed here should be metric.

[Keesh]

yer they dont do a series one balancer anymore, they do a vp one which like i said need different bolt and washerwhich are another $60 at least.. i got mine for $100 cash from bursons, but thats a returned favour price.. genuine balancers arent going to be better, its like the timing chain everyone goes aftermarket, if your replacing it go with something better

[Bz Kn33z]

I have a Rollmaster timing chain after market is that crap.

[CSL]

i ame xtremly confused by this thread, as doc bob said, the bolt is either 1/4 (imperial) or m6 (metric) , also, i have sucsesfully bought a series one balancer from bursons (bout 125) and yeah the just slip on and off once the main bolt is cracked, as for series 2, press fit, puller required

[samuels]

i ame xtremly confused by this thread, as doc bob said, the bolt is either 1/4 (imperial) or m6 (metric) , also, i have sucsesfully bought a series one balancer from bursons (bout 125) and yeah the just slip on and off once the main bolt is cracked, as for series 2, press fit, puller required

you will find many bolts on the VN are both imperial and metric....

[Keesh]

i ame xtremly confused by this thread, as doc bob said, the bolt is either 1/4 (imperial) or m6 (metric) , also, i have sucsesfully bought a series one balancer from bursons (bout 125) and yeah the just slip on and off once the main bolt is cracked, as for series 2, press fit, puller required

yer thats what i was saying, series one has one type bolt, series 2 the other..
what i was saying is that if u want to replace a series one balencer genuinely, u have to replace it using a series 2 balancer, bolt and washer.. BUT there are plenty of aftermarket series one balancers.. its ALWAYS a good idea using a puller, mine is a s1 and it wouldnt come off without a puller

[Keesh]

thats my understanding of it anyway!

[charged vp]

sorry to hijack but whats the size of the big nut holding it on.
i gotta get a socket to suit