25263 Members
87 Forums
114615 Topics
508191 Posts
Max Online: 479 @ 03/26/08 04:18 PM
|
|
|
Lost your password? Can't remember your username? Having registration problems? Answers to many of these problems can be
FOUND HERE!
|
|
|
#507145 - 05/03/08 04:21 PM
1940 Special Harmonic Balancer
|
Podster
Member
Registered: 02/25/00
Posts: 30
Loc: Highland Lakes, NJ 07422
|
How do you remove the harmonic(torsion) balancer off of a 1940 Series 40 straight eight? There are no threaded holes to attach a regular harmonic balancer tool and the pulley is not strong enough to withstand a large gear puller. Help!
_________________________
John Podd
"The Podster"
BCA #36236
|
|
Top
|
|
|
|
|
#507513 - 05/05/08 09:53 AM
Re: 1940 Special Harmonic Balancer
[Re: Podster]
|
Matt Harwood
Member
Registered: 10/09/01
Posts: 1616
Loc: Cleveland, OH
|
I used a gear puller with some long fingers to reach behind the pulley and grab the metal belt pulley instead of the stacked rubber bits. I think mine had some articulating fingers that would get all the way behind it. I was able to pull it by just using my fingers to tighten the puller and it slid right off.
I thought about making a plate that the gear puller could grab. Just take a thick piece of steel and cut a slot in it that will allow it to slide over the crank snout, then grab that with the gear puller instead of the pulley itself. Fortunately, mine didn't need this, but I don't see why it wouldn't work and prevent damage to the pulley.
Hope this helps.
|
|
Top
|
|
|
|
|
#507536 - 05/05/08 11:41 AM
Re: 1940 Special Harmonic Balancer
[Re: Matt Harwood]
|
JPIndusi
Member
Registered: 12/17/02
Posts: 462
Loc: Long Island, NY
|
Matt:
The device you describe sounds to me like a circular piece of flat steel with a slot cut from the center to an edge of the circle. The slot would be the width of the crankshaft snout. This would look like a large "C" with the center opening narrow and straight. Is this correct?
Second question: Where would you obtain a replacement harmonic balancer if perchance you needed one?
Thanks.
Joe, BCA 33493
|
|
Top
|
|
|
|
|
#507745 - 05/06/08 09:29 AM
Re: 1940 Special Harmonic Balancer
[Re: JPIndusi]
|
Matt Harwood
Member
Registered: 10/09/01
Posts: 1616
Loc: Cleveland, OH
|
Joe, that's exactly what I had in mind. I'd make it from at least 1/8" thick, if not more, just to prevent bending.
As far as a replacement, I don't know if there are any new replacements. You'd probably have to get a used one which should be pretty easy to find. I don't think these are anything special beyond just a stack of fiber-reinforced rubber with a pulley attached. They should be fairly interchangeable and not subject to being out of tolerance like many modern balancers might be. Our engines don't spin fast enough to need a substantial balancer. I don't know whether the straight-8s are internally balanced, but I would assume so.
I wonder if Steele could make/rebuild one?
|
|
Top
|
|
|
|
|
#508621 - 05/09/08 11:19 PM
Re: 1940 Special Harmonic Balancer
[Re: Matt Harwood]
|
JPIndusi
Member
Registered: 12/17/02
Posts: 462
Loc: Long Island, NY
|
I'm not sure how these are constructed. Is there a round steel plate bolted to the crankshaft end, a round layer of rubbber, and then the steel fan belt pulley? Sort of an Oreo cookie, where the white filler is the rubber you refer to?
Thanks.
Joe, BCA 33493
|
|
Top
|
|
|
|
Moderator: BUICK RACER, R W Burgess, 24T42, Peter J.Heizmann, Steve Moskowitz, Brenda Shore, gagliaj
|
