Evo engines

several years of Evos had bad cam bearimngs

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neilw
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Evo engines

#1

Post by neilw »

I remember late 80's bikes ( I think it was) HD used a cheap cam bearing , it would seize up and rip the side out of the engine. When I replaced the cam in my 1991 I made sure it was a Timkin bearing I used . I think the old one was already a Timkin anyway.
I'm just wondering which tyears had that bad bearing .
RooDog
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Re: Evo engines

#2

Post by RooDog »

It needs to be a full complement Torrington style thin shell needle bearing just like the later Pans and Shovels used, not the later INA bearing, that had spacers between the fewer needles.....
....RooDog....
PanPal
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Re: Evo engines

#3

Post by PanPal »

HD continued or went back to doing this. It was one of the weak spots on my 08 110 twin cam motor. I changed the inner cam bearings from caged rollers to full rollers because this was pointed out.
neilw
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Re: Evo engines

#4

Post by neilw »

RooDog wrote: Fri Feb 12, 2021 11:14 pm It needs to be a full complement Torrington style thin shell needle bearing just like the later Pans and Shovels used, not the later INA bearing, that had spacers between the fewer needles.....
....RooDog....
Yes, you are correct . I said Timkin bearing when as you pointed out it is the Torrington bearing that I should have said was the proper one to use .
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