Author Topic: Polished Rods  (Read 1355 times)

Online RDfella

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Re: Polished Rods
« Reply #45 on: 26.12. 2020 21:29 »
The point TT was making, I believe, was that if the distance between small and big ends is changed, the rod length and bumping clearance will be changed, but not the stroke, which is governed by the crankshaft.
'49 B31, '49 M21, '53 DOT, '58 Flash, '00 Firestorm, Weslake sprint bike.

Online berger

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Re: Polished Rods
« Reply #46 on: 26.12. 2020 22:55 »
I get it now *yeah* *beer*

Online Seabee

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Re: Polished Rods
« Reply #47 on: 27.12. 2020 00:34 »
Seabee,

I've, basically,  been following the approach and service sheet posted by KiwiGF here:

https://www.a7a10.net/forum/index.php?topic=6086.0

I polished the big ends for two reasons:

1. I didn"t think about (or know to think about) breakage there.

2. I like the way they look, though, in closeup photos, remaining imperfections are exagerated.

Richard L.

Thanks for the link Richard. Nothing wrong with polishing everything! On car engines with ferrous rods, we would have them shot peened after polishing. I've never heard of needing to do that with non-ferrous rods.

I weighed up all of my components tonight and everything is exactly equal! 750 kg total per side. I must be living right. I need to study the math associated with checking the balance factor in the link. I need the "balancing for dummies" version!

Seabee
1961 Super Rocket
1957 Road Rocket
2009 Harley Electra Glide Classic
1993 Harley Springer Softtail
1970 Harley Sportster Chopper
1957 Harley Panhead Chopper
1982 Yamaha XT550
2001 KTM EXC 400
1970 Honda CT70
Southern Illinois, USA

Online Triton Thrasher

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Re: Polished Rods
« Reply #48 on: 27.12. 2020 09:40 »


I weighed up all of my components tonight and everything is exactly equal! 750 kg total per side.
Seabee

You’re thinking big!

Online Seabee

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Re: Polished Rods
« Reply #49 on: 27.12. 2020 20:32 »
Oops, drop the "K"  *conf*
1961 Super Rocket
1957 Road Rocket
2009 Harley Electra Glide Classic
1993 Harley Springer Softtail
1970 Harley Sportster Chopper
1957 Harley Panhead Chopper
1982 Yamaha XT550
2001 KTM EXC 400
1970 Honda CT70
Southern Illinois, USA