ConcoursMustang Forums

1st Generation 1964 1/2 - 1973 - Questions & general discussions that apply to a specific year => 1964 1/2 - 1965 => Topic started by: jackhodges on July 19, 2020, 07:49:30 PM

Title: Crankshaft Dampener Question
Post by: jackhodges on July 19, 2020, 07:49:30 PM
I'm rebuilding a 1964 1/2, 260 2V with a C4 automatic transmission. The dampener is needing to be replaced and I can't seem to find a crank dampener (Harmonic balancer) for a 260, only 289s. If the rods and crank are the same between the 260 & 289, are the 28 Oz. 260 and 289 dampeners interchangeable (besides the 3 or 4 bolt difference)? Will the timing marks be in the same place on both balancers?
Title: Re: Crankshaft Dampener Question
Post by: carlite65 on July 19, 2020, 08:27:40 PM
why not rebuild yours? you know it fits.
Title: Re: CRANKSHAFT DAMPENER QUESTION
Post by: jackhodges on July 19, 2020, 08:52:23 PM
I was trying to keep the question as simple as possible but, I don't have the old one.
Title: Re: Crankshaft Dampener Question
Post by: 67gta289 on July 19, 2020, 09:09:54 PM
Just in case you don't have the MPC.  First pic is the 68 version, second is 1972
Title: Re: Crankshaft Dampener Question
Post by: carlite65 on July 19, 2020, 09:33:26 PM
I was trying to keep the question as simple as possible but, I don't have the old one.

you did not tell us that fact in the original post. do a search here for rebuilders. they also sell outright. btw please turn off the caps in the post titles.
Title: Re: Crankshaft Dampener Question
Post by: J_Speegle on July 19, 2020, 10:44:50 PM
why not rebuild yours? you know it fits.

And they are dated to your car if the engine is original


Took care of the CAPS :)
Title: Re: Crankshaft Dampener Question
Post by: jackhodges on July 19, 2020, 10:50:26 PM
Sorry about the caps thing.  So, I guess the real question here now is how can I find a C40E A1 crank damper?
Title: Re: Crankshaft Dampener Question
Post by: J_Speegle on July 19, 2020, 10:53:16 PM
Sorry about the caps thing.  So, I guess the real question here now is how can I find a C40E A1 crank damper?

Guess I would start with Ebay, the Falcon and Fairlane sites and related business's that cover that year. "A bigger and wider net catches more fish"
Title: Re: Crankshaft Dampener Question
Post by: jackhodges on July 19, 2020, 10:58:42 PM
So, back to my original question.  I have an aftermarket one for now but, it is for a 289.  Are they interchangeable?  Are the timing marks the same so I can time and tune the engine?  I will start the hunt for an original but am wanting to tune the engine before I put the front clip back on the car.
Title: Re: Crankshaft Dampener Question
Post by: krelboyne on July 23, 2020, 07:19:21 PM
According to Mannel's book. C4OE-A1 (C4OE-6316-A) Should be for 1964 260 engines.
Title: Re: Crankshaft Dampener Question
Post by: RoyceP on July 23, 2020, 08:17:45 PM
Click here:

https://www.ebay.com/itm/OEM-1963-64-65-Ford-260-289-V8-Original-Mustang-Falcon-Comet-Harmonic-Balancer/223478174986?hash=item340856550a:g:EoYAAOSwdQda-MSp

I'm rebuilding a 1964 1/2, 260 2V with a C4 automatic transmission. The dampener is needing to be replaced and I can't seem to find a crank dampener (Harmonic balancer) for a 260, only 289s. If the rods and crank are the same between the 260 & 289, are the 28 Oz. 260 and 289 dampeners interchangeable (besides the 3 or 4 bolt difference)? Will the timing marks be in the same place on both balancers?
Title: Re: Crankshaft Dampener Question
Post by: jackhodges on July 24, 2020, 09:25:34 PM
So, to answer my own question.  I got the car timed and was thinking, if the cranks and rods are the same across the 260/289, then, TDC is TDC no matter which engine.  So this tells me the dampers are the same. 
Title: Re: Crankshaft Dampener Question
Post by: RoyceP on July 24, 2020, 11:56:28 PM
Well yes and no. The correct balancer is specific to the ‘65 260. Any balancer from a 64- 69 289 or 302 will fit and work.

 
So, to answer my own question.  I got the car timed and was thinking, if the cranks and rods are the same across the 260/289, then, TDC is TDC no matter which engine.  So this tells me the dampers are the same.
Title: Re: Crankshaft Dampener Question
Post by: jackhodges on July 25, 2020, 01:52:08 AM
Other than part number?
Title: Re: Crankshaft Dampener Question
Post by: RoyceP on July 25, 2020, 07:18:14 AM
The balancers used on the various 260, 289 and 302 applications from 1964 - 69 all share the same pulley mounting capabilities and imbalance properties. Visually they differ greatly. Some are heavier and some are lighter. There is only one correct balancer for your application but there are many that will function just fine. There are many reproductions that would work so long as you don't care about authenticity.

Other than part number?
Title: Re: Crankshaft Dampener Question
Post by: jwc66k on July 25, 2020, 01:00:04 PM
Well yes and no. The correct balancer is specific to the ‘65 260. Any balancer from a 64- 69 289 or 302 will fit and work.
Mostly no.
The balancers used on the various 260, 289 and 302 applications from 1964 - 69 all share the same pulley mounting capabilities and imbalance properties.
Visually they differ greatly. Some are heavier and some are lighter.
There is only one correct balancer for your application but there are many that will function just fine.
The wrong balancer greatly increases wear on engine internals, and at highway operating speeds, will cause vibrations.
Get the right one.
Jim