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View Full Version : Harmonic Balancer - to buy or not to buy....


gordonquixote
08-21-2007, 10:06:53 AM
I was putting the lower pulley on the harmonic balancer and there were two helicoils (both of which were in bad shape). I pulled them out with pliers out of frustration. The balancer looks like it has seen better days.

So, should I put new helicoils in or pay $70 for a OEM replacement from Summit or Jegs? 396, internally balanced - the OEM is apparently an 8" but there is a 7" on there now...any advice

TooLateVTEC
08-21-2007, 11:26:06 AM
If your only running an alt. I wouldnt buy a new one. But, if your running P/S and an alt,I would prob. buy a new one just b/c I wouldnt want that crank pulley flying off at high RPM's and taking out alot of stuff worth more than $70.

CorkyE
08-21-2007, 11:33:45 AM
If it looks in bad shape, the elastomer is likely in bad shape also. Thats kind of cheap insurance - buy a new one...

Trainman
08-21-2007, 11:44:37 AM
I've got to go with buy a new one too. These things don't last forever, and if it was abused enough to need heli's, then it probably got some other more serious abuse too.

hhott71
08-21-2007, 12:55:20 PM
The auto parts stores sell them too, $30 on up.

Ztoy
08-21-2007, 02:20:53 PM
aww heck, its a just bb, go without.......hehehe

ZS10
08-21-2007, 02:29:29 PM
I really should get a new one too, would like a SFI one though. Keep us posted on what you get and how it fits.

gordonquixote
08-21-2007, 03:18:45 PM
Thanks guys - I'll give an update here in a week or so. Going new for sure - I'llk try an auto parts store on the way home.

theflash
08-21-2007, 07:46:13 PM
nobody said this hobby was inexpensive ;)

blades67
08-23-2007, 06:20:53 AM
I went with a TCI Rattler. It's SFI 18.1 rated and won't ever shift like an elastomer two-piece one can.

gordonquixote
08-23-2007, 01:41:19 PM
I'm picking up an OEM balancer on the way home - ordered it Tuesday. Same thing as Summit for the same price (with no handling charge BTW).

Thanks everybody. I would have upgraded to a better one but I am sure this will suffice. I am trying to get the old girl on the road first dammit!

gordonquixote
08-24-2007, 12:24:51 PM
So, I picked up the HB today but it came with weights...WTF? The 396 and 427 is internally balanced and this threw me for a loop.

Anybody? How will I know if I need them? I don't think I'll be spinning it past about 5,200 and that will be hardly ever anyway.

78LT383
08-24-2007, 12:34:01 PM
Arey they bolt in? My Summit one came with weights that could be bolted in for an ext. balance engine or omitted for an internally balanced one.

ZS10
08-24-2007, 03:09:04 PM
So, I picked up the HB today but it came with weights...WTF? The 396 and 427 is internally balanced and this threw me for a loop.

Anybody? How will I know if I need them? I don't think I'll be spinning it past about 5,200 and that will be hardly ever anyway.
The weights are for use on a 454.

78LT383
08-24-2007, 03:16:50 PM
Do you mean it came with weights cast in or separate?

gordonquixote
08-24-2007, 05:59:33 PM
Separate weights.