Internal or External Balance

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Feb 2, 2010 | 10:06 AM

ScottMH

Thread Starter

Intermediate

Joined: Dec 2009

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Internal or External Balance

could you guys tell from these pictures if my motor was internal or external balance? I think its internal balance

Feb 2, 2010 | 10:08 AM

hugie82

Safety Car

Joined: Mar 2007

Posts: 3,652

Likes: 49

From: Bridgewater nj

Interal. No counter weights

Feb 2, 2010 | 10:09 AM

2armor

Racer

Joined: Jan 2007

Posts: 314

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From: Pittsfield, Ohio

What engine is it? 350?

Last edited by 2armor; Feb 2, 2010 at 10:19 AM.

Feb 2, 2010 | 10:11 AM

gkull

Team Owner

Joined: Apr 1999

Posts: 21,953

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From: Reno Nevada

2024 C3 of the Year Finalist- Modified

I vote for internal. You don't see the added weights and or drilling on the Damper. Only most big blocks and 400 ci small blocks came externally balanced

Feb 2, 2010 | 10:53 AM

jordan89

Safety Car

Joined: Mar 2009

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From: Oakland California

Feb 2, 2010 | 11:40 AM

Sho'nuff

Instructor

Joined: May 2009

Posts: 180

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From: Prairieville Louisiana

Quote:

Originally Posted by ScottMH

could you guys tell from these pictures if my motor was internal or external balance? I think its internal balance

Hammer marks??

Feb 2, 2010 | 11:54 AM

SH-60B

Melting Slicks

Joined: Mar 2008

Posts: 2,989

Likes: 198

From: Meriden CT

From the first pic you can see from the witness mark it came off a two piece rear seal crank, so it was internally balanced.

Feb 2, 2010 | 03:49 PM

Timsride

Burning Brakes

Joined: May 2008

Posts: 860

Likes: 0

From: Stratford Ontario

balance

All 350's were internally balanced,at least the ones with 2 piece seals.Yours is internally balanced but looking at the hammer marks on front balancer,I would be more woried about the thrust bearing(rear main).

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Feb 2, 2010 | 04:03 PM

ScottMH

Thread Starter

Intermediate

Joined: Dec 2009

Posts: 49

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thanks for the input. this came off the motor im rebuilding. im smart enough to use a harmonic balancer puller/installer. so it wasnt I that hammered that on. but the rubber is in good shape so i wanted to be sure i could use it

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