Yeah they're pretty trashed.
Generally the cause of failure on a new gearset is usually incorrect setup, but
there isn't much left to analyze.
If pinion depth, backlash, and preloads were correct, and you had a good tooth
contact pattern, it likely didn't fail due to lack of break-in.
For running in a new set of gears I recommend doing a session, working up to
less than race speed, with on/off throttle, a fluid change, another session or
two, another fluid change and done..
FWIW
Glen
-----Original Message-----
From: Greg Blake via Fot <fot at autox.team.net>
To: Fot <fot at autox.team.net>
Sent: Wed, Sep 5, 2018 1:05 am
Subject: [Fot] Crown and pinion gear break in
I would love to here the FOT experience in breaking in new differential gears.
What has worked well for you in the past?
Last weekend, I was running the TR3 at Hallett with a brand new 4.55 gear set
and it failed. I probably got 30 laps total in 4 sessions on track. I did not
think to follow any set break in procedure with the gears and I am wondering if
that is why they failed.
I am interested in the lists experience with brand new or new old stock ring
and pinion break in.
Here is a pic of the failed set.
Sent from my iPhone_______________________________________________
fot at autox.team.net
http://www.fot-racing.com
Archive: http://www.team.net/pipermail/fot
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