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(continued)

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#1464752 Thu Sep 01 2022 12:48 AM
Joined: Oct 2015
Posts: 18
P
'Bolter
Can the harmonic balancer from a 1941 - 216 be used on a 1961 - 235? I'm swapping the 216 for the 235 and want to be able to keep the wide belt to appear as nearly stock as possible. I'm using the 216 valve cover.

ponder48 #1464754 Thu Sep 01 2022 01:12 AM
Joined: Feb 2004
Posts: 25,334
H
Kettle Custodian (pot stirrer)
The balancer will fit, but the position of the water pump on the newer engine cannot be hidden, even with Dave's relocation adapter and the 216 water pump. Ray Charles could "see" the difference! What do you plan to do about the pushrod cover height difference?


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!"
Abraham Lincoln

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!

There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self.
Ernest Hemingway

WAG MORE- - - - - -BARK LESS!
ponder48 #1464775 Thu Sep 01 2022 03:15 AM
Joined: Dec 2008
Posts: 1,785
P
'Bolter
They used different dampers for a reason, begining in this case with different stroke lengths.

ponder48 #1464781 Thu Sep 01 2022 06:06 AM
Joined: Feb 2004
Posts: 25,334
H
Kettle Custodian (pot stirrer)
Inline sixes are inherently balanced, so the "different stroke" idea doesn't hold water. 235's from 1941 to 1953 ran the same balancer as a 216. Six cylinders including 216, 235, 194, 230, and 250 all have the same diameter crankshaft snout (1 1/4") as well as most small block Chevy V8's. All the balancers for those engines will press fit onto a stovebolt crankshaft, but they won't necessarily have belt grooves that line up properly. Some have bolt-on pulleys.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!"
Abraham Lincoln

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!

There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self.
Ernest Hemingway

WAG MORE- - - - - -BARK LESS!
ponder48 #1464825 Thu Sep 01 2022 04:40 PM
Joined: Dec 2008
Posts: 1,785
P
'Bolter
Inline sixes are inherently balanced

Not completely. There is no mass directly opposing the crank throw.
Stroke changes crank stiffness, which is what determines harmonics.
http://harmonicdampers.com/downloads/pdf/tech/BHJDynamics_Damper_Info.pdf

Hotrod Lincoln #1464829 Thu Sep 01 2022 05:06 PM
Joined: Oct 2015
Posts: 18
P
'Bolter
Well, some things will just hafta look non-stock as in the case of the push rod cover. I'm a pragmatic idealist - everything should be perfect, but it ain't. There will also be a split exhaust and a dual carb intake. You might ask, then, "Why do you want it to be as close to original as possible?" I've asked myself that question already and can't answer myself. At my age and with south Georgia heat this is a slow process, so some things will probably change. Anyway, I really do appreciate your advice - it answers my question.

Last edited by ponder48; Thu Sep 01 2022 05:07 PM.
ponder48 #1464869 Fri Sep 02 2022 12:11 AM
Joined: Feb 2004
Posts: 25,334
H
Kettle Custodian (pot stirrer)
I can offer a few suggestions by private message if you like. I've done a considerable amount of experimentation on stovebolt balancers, and I might be able to offer an alternative to a 70 year old item that would allow you to run a wide belt with a newer part.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!"
Abraham Lincoln

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!

There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self.
Ernest Hemingway

WAG MORE- - - - - -BARK LESS!

Moderated by  Phak1, Woogeroo 

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