[TR] TR6 cam - FLAT tappets (lifters)
Wbeech
wbeech at flash.net
Wed Jan 29 14:27:41 MST 2014
Just curious, did Mr Goode have an explanation as to why his cam failed when
you did everything right? Any offer the re-grind it for you?
Bill
Sent from mobile Bill
On Jan 29, 2014, at 3:19 PM, aribert neumann <aribertn at gmail.com> wrote:
Greetings all:
I need to replace the cam in my car - had a Goodparts GP2 and wiped a cam
lobe after a mere 10K miles. I did all the proper: cam break-in time &
lube, high ZDDP oil, etc. I like the cam grind, so after poking around the
net, asking a few questions, etc, I decided to buy another.
This time I will buy the replacement lifters from the same source as the
cam. When I went to order the lifters I see that Good's lifters are ground
truly flat. I have always heard that all "flat tappets" are slightly
crowned. I contacted Good and his response is that his cam is "... ground
without a taper on the lobe and should be run with a perfectly flat
tappet..." and that his lifters have been ground flat for the past year.
I am a bit spooked with so little "in the field" development time on his
flat tappets. I don't want to be spending $500 every 10K miles to replace
cams.
I have always heard that flat tappets are really slightly crowned. All
tappets that I have ever handled were crowned on the face - two tappet
surfaces could not be wrung together. Your thoughts?
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