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Re: Harmonic balancer
ndkid275 #1405968 Tue Apr 13 2021 11:23 PM
Joined: Dec 2008
Posts: 1,585
P
'Bolter
If the crank can move back even .010" the thrust bearing takes the hit.
A wood block may not be enough resistance, the surface will compress unless the contact area is large.

Re: Harmonic balancer
BC59 #1406038 Wed Apr 14 2021 02:26 PM
Joined: Dec 2018
Posts: 619
F
'Bolter
BC 59 If that rubber isn't any tougher than that,probably need a better balancer!!

Re: Harmonic balancer
fixite7 #1406143 Thu Apr 15 2021 04:23 AM
Joined: Mar 2010
Posts: 9,660
5
'Bolter
Originally Posted by fixite7
BC 59 If that rubber isn't any tougher than that,probably need a better balancer!!
The deal with banging on the outside of the balancer has little or nothing to do with damaging the rubber, but more about upsetting the even tension of the rivets.
If one strikes the balancer outside of the hub, it can squarsh the rubber on one side causing a horrible wobble which can only be fixed by drilling out all of the rivets and replace them with 10 mm bolts.
I recently repaired one with that problem and was shocked at the soundness of the 70 year old rubber. It looked like new. It was not damaged by whatever hit it.
What happens is, the rubber is compressed but cannot return to its normal shape until the balancer is disassembled due to how tight the rivets are in their bore.

Re: Harmonic balancer
ndkid275 #1406179 Thu Apr 15 2021 01:30 PM
Joined: Dec 2017
Posts: 944
D
'Bolter
When I was a teenager in the middle 70s if you messed a part up you just went to the junkyard and got a replacement. Today, there are no junkyards left and if there are any left, the parts we would need are long gone or now in worse shape then what you messed up to begin with. So my take on this is that while back in the day hammering them on was one way to do it, today it would be preferable, if possible, to drill and tap the crank snout for a gentler install that is less likely to mess up the thrust crank bearing or the harmonic balancer. Frankly, I have had my machine shop drill them since the early 80s and its a way better way to get the balancer fully seated and secured. So I think the better call is that when possible, drill and tap the crank.


Mike
Re: Harmonic balancer
Phak1 #1406200 Thu Apr 15 2021 04:15 PM
Joined: Dec 2018
Posts: 619
F
'Bolter
phak 1 Seems like it would take a gorrilla to crank that !!

Re: Harmonic balancer
fixite7 #1406919 Wed Apr 21 2021 12:52 AM
Joined: Feb 2019
Posts: 1,859
P
AD Addict
Originally Posted by fixite7
phak 1 Seems like it would take a gorrilla to crank that !!
You got that right, but how many cars/trucks do you see that have the ears so you could theoretically start with a hand crank. To me it was just like the foot operated starter, too cool to lose!

Now to find the hand crank! LOL

Last edited by Phak1; Wed Apr 21 2021 12:53 AM.

Phil

1952 Chevrolet 3100
Project Journals
‘59 235 & hydraulic lifters
“Three on the Tree” & 4:11 torque tube
12v w/ Alternator
Re: Harmonic balancer
ndkid275 #1406951 Wed Apr 21 2021 09:30 AM
Joined: Sep 2001
Posts: 31,092
'Bolter
Search the Internet for Chevrolet 216 235 engine manual hand crank.

They were used through 1953 on Chevrolet manual transmission vehicles/engines.

$63 plus shipping from Chevs of the 40s


Tim
1954Advance-Design.com [1954advance-design.com]
1954 3106 Carryall Suburban [stovebolt.com] - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic [1954advance-design.com] - part of the family for 15 years
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engines are not "splash oilers" - this is a splash oiler. [chevy.oldcarmanualproject.com]
Re: Harmonic balancer
ndkid275 #1406958 Wed Apr 21 2021 11:36 AM
Joined: Feb 2019
Posts: 1,859
P
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Thanks Tim!


Phil

1952 Chevrolet 3100
Project Journals
‘59 235 & hydraulic lifters
“Three on the Tree” & 4:11 torque tube
12v w/ Alternator
Re: Harmonic balancer
ndkid275 #1407208 Fri Apr 23 2021 06:00 PM
Joined: Jan 2013
Posts: 1,962
'Bolter
Too late! The balancer is in place! I guess I will find out very soon!

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