Re: anyone seen this on a 360 crank pulley
[Re: mopars4ever]
#3032927
04/12/22 03:24 PM
04/12/22 03:24 PM
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Joined: Jan 2003
Posts: 74,977
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,977
U.S.S.A.
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Anyone seen this on a original low miles 360 E58 crank pulley? I assume some type of balance holes were drilled. ( sorry about the crappy pics) I would definitely question the balance of that piece .
running up my post count some more .
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Re: anyone seen this on a 360 crank pulley
[Re: JohnRR]
#3032987
04/12/22 07:58 PM
04/12/22 07:58 PM
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Joined: Jan 2003
Posts: 10,538
Freeport IL USA
poorboy
I Live Here
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I Live Here
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Posts: 10,538
Freeport IL USA
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I would suspect those holes are for the pulley neutral balance. The holes to bolt it on the balancer are evenly spaced, so any special balance would go out the window once it was removed, unless it was marked for position.
That time frame was pretty bad times at Chrysler, they did a lot of strange stuff just to put a car on a dealers lot for sale. Over the years I've seen a lot of strange stuff that caught my eye and made me ask why, but the things in question still functioned, so there were soon forgotten. I could easily see them having a bunch of out of balance pulleys they bought at fire sale prices with the "custom" pulley balance for the correction, where normally they would have rejected them.
90% of the customers would never know, and most of the mechanics wouldn't care as long as it worked and didn't cost them money to correct. Really, until guys like us started collecting this stuff and started asking questions, it was probably only known by a tight circle of upper level management. We are now guessing why it may have been done.
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Re: anyone seen this on a 360 crank pulley
[Re: poorboy]
#3033012
04/12/22 09:11 PM
04/12/22 09:11 PM
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Joined: Jan 2003
Posts: 13,573
md
mopars4ever
OP
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OP
I Live Here
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Posts: 13,573
md
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I would suspect those holes are for the pulley neutral balance. The holes to bolt it on the balancer are evenly spaced, so any special balance would go out the window once it was removed, unless it was marked for position.
That time frame was pretty bad times at Chrysler, they did a lot of strange stuff just to put a car on a dealers lot for sale. Over the years I've seen a lot of strange stuff that caught my eye and made me ask why, but the things in question still functioned, so there were soon forgotten. I could easily see them having a bunch of out of balance pulleys they bought at fire sale prices with the "custom" pulley balance for the correction, where normally they would have rejected them.
90% of the customers would never know, and most of the mechanics wouldn't care as long as it worked and didn't cost them money to correct. Really, until guys like us started collecting this stuff and started asking questions, it was probably only known by a tight circle of upper level management. We are now guessing why it may have been done. That was why I was questioning the balance thing as there was one longer bolt as if it was marking a certain position . Maybe I`m just over thinking it all.
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Re: anyone seen this on a 360 crank pulley
[Re: mopars4ever]
#3033043
04/12/22 11:41 PM
04/12/22 11:41 PM
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Joined: May 2006
Posts: 1,754
Phila
PhillyRag
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top fuel
Joined: May 2006
Posts: 1,754
Phila
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I would suspect those holes are for the pulley neutral balance. The holes to bolt it on the balancer are evenly spaced, so any special balance would go out the window once it was removed, unless it was marked for position.
That time frame was pretty bad times at Chrysler, they did a lot of strange stuff just to put a car on a dealers lot for sale. Over the years I've seen a lot of strange stuff that caught my eye and made me ask why, but the things in question still functioned, so there were soon forgotten. I could easily see them having a bunch of out of balance pulleys they bought at fire sale prices with the "custom" pulley balance for the correction, where normally they would have rejected them.
90% of the customers would never know, and most of the mechanics wouldn't care as long as it worked and didn't cost them money to correct. Really, until guys like us started collecting this stuff and started asking questions, it was probably only known by a tight circle of upper level management. We are now guessing why it may have been done. That was why I was questioning the balance thing as there was one longer bolt as if it was marking a certain position . Maybe I`m just over thinking it all. Yes: over thinking. When you start stacking 3 or 4 pulleys together like that it, may require balancing. They weren't precisely indexed together before being spot welded together. Typically will see those marks on 3 & 4 pulley one.
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