This has been discussed A LOT.
Read here:
http://www.team.net/mharc/archives/cgi-bin/namazu.cgi?query=lifters&submit=Search!&idxname=fot&max=10&result=normal&sort=score
and here:
http://www.team.net/mharc/archives/cgi-bin/namazu.cgi?query=tappets&submit=Search!&idxname=fot&max=10&result=normal&sort=score
~Steve
-----Original Message-----
>From: Steve Yott <tr4@wi.rr.com>
>Sent: Nov 5, 2012 4:27 PM
>To: 'MadMarx' <tr4racing@googlemail.com>, 'triumph friends'
><fot@autox.team.net>
>Subject: Re: [Fot] Tappets
>
>This could be a fun thread.... I learned many years ago that flat tappets
>were intentionally made with a very slight crown which helps establish
>rotation of the tappet while riding on the camshaft. The cam lobe is
>normally offset from the centerline of the tappet in order to help with the
>rotation of the tappet also. There are several companies here that grind
>tappets and all that I know of grind a crown on them.
>
>I would like to hear what the rest of the masses have to say about this
>subject as I am always ready to learn!
>
>Steve Yott
>
>-----Original Message-----
>From: fot-bounces@autox.team.net [mailto:fot-bounces@autox.team.net] On
>Behalf Of MadMarx
>Sent: Monday, November 05, 2012 10:47 AM
>To: 'triumph friends'
>Subject: [Fot] Tappets
>
>Back in time I reported about that I always grind my tappets flat as only
>domed ones are on the market.
>
>Today I bought a new set and was amazed that they are perfect flat, no
>regrind needed....have a look:
>
>https://lh3.googleusercontent.com/-moHnemvOoI0/UJfrIMoHBbI/AAAAAAAABjA/8qMo_
>D6jbFc/s972/DSC02992.JPG
>
>https://lh4.googleusercontent.com/-V9PziuUrLds/UJfq-MbvNJI/AAAAAAAABi4/F98nS
>Om_WRw/s1079/DSC02991.JPG
>
>And the racing ones are a lot shorter.
>
>Cheers
>Chris
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