what year flywheels
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what year flywheels
Hi...I have a milkcrate Pan motor that I realize to be different years. the cases don't match and so on. Thanks to this site, What fits What, and the manual I'm figuring most things out. However, I Don't know what year flywlheels I have and what years are compatible. the #s on the side are 150 40 3 f, and 30-3 on the tag. There is also a 7 stamped on the outer ring. Any help would be appreciated.
Thanks. Claude
Thanks. Claude
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Re: what year flywheels
Claude, what year is the Pan as not all of them use the same wheels. there are several variations. And post a picture of the flywheels showing the casting #s.
Robbie
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Re: what year flywheels
the 30-3 I believes refers to the March 30th; gonna suggest the 3-f refers to June 53 0r 63? (since HD used letter/number codes to represent years in some of the other raised marks...heads on my 49 have a code of K-7, tranny of I-8). Course wouldn't be the first time I was wrong
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Re: what year flywheels
thanx guys. sounds great, cause its supposed to be a 53'. I'm working on the pic, (not good with the computer.)
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Re: what year flywheels
The casting code of 150-40 is good if you have a '53. All big twin flywheels from '40 to '54 interchange, however there are 74ci and 61ci versions. The center to center distance on the mainshaft to crankpin hole is half the stroke. So a 61 would measure 1 3/4 inches which is half of 3 1/2. A 74 would be just under 2 inches for the 3 31/32 stroke. Easy to check and who cares about the casting date code as they all work.
Robbie
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Re: what year flywheels
Robbie since he has a basket, seems he is just trying to figure what the heck he has to start with in order to determine if it would work., and from there determining if it is 61 or 74.RUBONE wrote:The casting code of 150-40 is good if you have a '53. All big twin flywheels from '40 to '54 interchange, however there are 74ci and 61ci versions. The center to center distance on the mainshaft to crankpin hole is half the stroke. So a 61 would measure 1 3/4 inches which is half of 3 1/2. A 74 would be just under 2 inches for the 3 31/32 stroke. Easy to check and who cares about the casting date code as they all work.
Robbie
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Re: what year flywheels
Robbies right,
You got to check the stroke first to see if the wheels can even mate. Thats why one of them needs to have an extra hole for oil. Next you check the tapers for damage, then the flywasher damage. Tossaways all go into the same milk crate every time.
Respectfully,
You got to check the stroke first to see if the wheels can even mate. Thats why one of them needs to have an extra hole for oil. Next you check the tapers for damage, then the flywasher damage. Tossaways all go into the same milk crate every time.
Respectfully,
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Re: what year flywheels
Shifty-if you want little flywheels you have to leave the shaft on one too.Why worry about the washers? they are easy to replace unless the counterbores are wallowed out and you can even fix that if you want too bad enough.Being REALLY cheap I usually want to.
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Re: what year flywheels
Dear Steinauge,steinauge wrote:Shifty-if you want little flywheels you have to leave the shaft on one too.Why worry about the washers? they are easy to replace unless the counterbores are wallowed out and you can even fix that if you want too bad enough.Being REALLY cheap I usually want to. :)
But the shaft has to go in and out and sometimes more than once.
The washers always get replaced but the boogers around them can get serious, so I left that for last. Especially since fixing wallowed counterbores aint cheap a'tall.
Respectful,
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Re: what year flywheels
Hey guy....I measured the wheels like Rubone said. Its a 74"... It measured 1"15/16. There are two sets of connecting rods they both measure 7"7/16ths.
I'm trying to sort everthing out so I can start with the long shopping list. Thats just the motor, the frame a whole other nightmare.
I'm trying to sort everthing out so I can start with the long shopping list. Thats just the motor, the frame a whole other nightmare.