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360 Damper/Torque Converter
#1297358
09/04/12 07:38 PM
09/04/12 07:38 PM
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Joined: Jul 2012
Posts: 102
pensacola, fl
53fopar
OP
member
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OP
member
Joined: Jul 2012
Posts: 102
pensacola, fl
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Been working on a 1973 360/904 in a street rod. I've got a vibration. Pulled the inspection cover on transmission today and.... no weights. Can't seem to find a 904 torque converter for the 360 at a reasonable price. Anyone got a source? Or, should I go the B&M flex plate route?
Got to thinking, is the damper wrong too? I can't tell. Found this damper on ebay. Do you need to remove the pulleys to see the grove? Is this the right damper?
edit: Sorry, won't let me attach the picture from ebay
Last edited by 53fopar; 09/04/12 07:39 PM.
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Re: 360 Damper/Torque Converter
[Re: 53fopar]
#1297362
09/04/12 10:37 PM
09/04/12 10:37 PM
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Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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Even if the machine shop internally balanced this 360 it would have either no weights on the front flat face of the converter (either chiseled off or a neutral converter) plus a neutral harmonic dampener & since your dampener is a 360 externally balanced unit I'd say they neglected to deal with the converter balance situation on the other end. I'd add the B&M flexplate & very likely you'll be good
live every 24 hour block of time like it's your last day on earth
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Re: 360 Damper/Torque Converter
[Re: 1965_PLYMOUTH]
#1297363
09/04/12 11:09 PM
09/04/12 11:09 PM
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Joined: Jul 2012
Posts: 102
pensacola, fl
53fopar
OP
member
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OP
member
Joined: Jul 2012
Posts: 102
pensacola, fl
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Motor is 1973. Electric fan, so that's not it.
I went and looked closer at my damper. It's not like the one in the pic. It has two levels. Toward the engine is the round damper with the timing mark. It has two holes drilled in the edge on one side. On the outside, toward the front of car there's a second level which is not even. Bigger on one end, narrow on the other. Hard to describe. Is this the other style of damper?
Last edited by 53fopar; 09/04/12 11:11 PM.
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Re: 360 Damper/Torque Converter
[Re: 53fopar]
#1297364
09/05/12 09:34 AM
09/05/12 09:34 AM
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Joined: May 2003
Posts: 15,487
Florida
scratchnfotraction
I Live Here
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I Live Here
Joined: May 2003
Posts: 15,487
Florida
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Quote:
Motor is 1973. Electric fan, so that's not it.
I went and looked closer at my damper. It's not like the one in the pic. It has two levels. Toward the engine is the round damper with the timing mark. It has two holes drilled in the edge on one side. On the outside, toward the front of car there's a second level which is not even. Bigger on one end, narrow on the other. Hard to describe. Is this the other style of damper?
I think it is the early 360 damper,360 first came out around that time IIRC.
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Re: 360 Damper/Torque Converter
[Re: scratchnfotraction]
#1297365
09/05/12 01:35 PM
09/05/12 01:35 PM
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Joined: Jul 2012
Posts: 102
pensacola, fl
53fopar
OP
member
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OP
member
Joined: Jul 2012
Posts: 102
pensacola, fl
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I stopped at a local transmission shop today looking for a 904/360 torque converter. The owner told me he needed to know if it was a steel or cast iron crank. He said the balance made a difference depending on which crank. First I ever heard of this. Is it true? If it is, why would the crank composition make a difference in the balance weight? I am thinking I am going to replace the TC rather than the B&M flex plate. This car was in storage for over 10 years and I think the TC may be on it's last leg anyway. scratchnfotraction found a TC in his area for me.  I think I found one locally, I know this afternoon.
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