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Heavy conn rods
Posted: Sun Mar 08, 2020 6:23 pm
by Mel King
Who would rebabbitt heavy rods and return them ? MEL.
Re: Heavy conn rods
Posted: Sun Mar 08, 2020 6:53 pm
by Joe Bell
Mel, why would you want to? they take twice the babbitt and hammer out quicker because of that. There is plenty of light rods out there to replace those, unless you are after heavier weight for rotating mass?
Re: Heavy conn rods
Posted: Sun Mar 08, 2020 8:32 pm
by John Warren
Joe, when you say that they take more babbitt, I am assuming that the base ID diameter is larger?
Re: Heavy conn rods
Posted: Sun Mar 08, 2020 9:31 pm
by DanTreace
Two types of heavy rods, C -type , pre-1915 have bore of 1 1/2" with 1/8" thick babbitt.
B-type, 1915-early 1920 heavy rods have same bore as the light rods (late 1920 and on), bore of those is 1 3/8" with 1/16" thick babbitt.
Re: Heavy conn rods
Posted: Sun Mar 08, 2020 9:48 pm
by Joe Bell
Dan, hit it on the nose!
Re: Heavy conn rods
Posted: Mon Mar 09, 2020 11:24 am
by Les Schubert
Well that explains something I have wondered about.
Back in the T era there were crankshafts made with 1-3/8” crank pins. The advertising implied that they could be used with T rods, and now I understand that this is true!!
Further I have one of these cranks!!