Thanks John.
Sent from my iPhone
> On Sep 9, 2018, at 10:07 AM, John Styduhar <johnstydo at gmail.com> wrote:
>
> The "92" is the "matched set" number and should correspond with the set
> number on the ring gear. The other number is the difference in pinion
> shimming from the "normal". Haha, what is normal?
>
>
>> On Sat, Sep 8, 2018 at 12:33 AM Greg Blake via Fot <fot at autox.team.net>
>> wrote:
>> Ok guys and gals.
>>
>> Here is a pic of the new pinion head. What do I do with the number on the
>> pinion head?
>>
>> Thanks.
>>
>>
>> Sent from my iPhone
>>
>>> On Sep 7, 2018, at 1:07 PM, Bob Kramer <rkramer56 at gmail.com> wrote:
>>>
>>> I have a 4.88 ring and pinion in a box. My Triumph club is running the VTR
>>> National near Austin next year and I've been volunteered to head up the
>>> autocross. I think I'll build a diff with it and put it in the Beandito,
>>> and sell tickets!
>>>
>>> Bob Kramer
>>>
>>>> On Fri, Sep 7, 2018 at 8:37 AM, barry rosenberg via Fot <fot at
>>>> autox.team.net> wrote:
>>>> Wasn't this the new set of gears? If so, they were new old stock from
>>>> England. They once belonged to Jim Ealy, who owned a black, 1966 TR4A race
>>>> car. I bought his junk yard to get his race car and the gears were new in
>>>> the box. I knew him since 1973 and he had the gears then. I had them until
>>>> recently. I would not think that back then there were cheap reproduction
>>>> gears available. He had 4:11, the 4:55 and 4:88 (great fun but useless).
>>>> The 4:11 went in the car when I sold it, the 4:88 were put in a locked
>>>> diff and played with on the street; the 4:55 sat on a shelf for all those
>>>> years. If the diff still had fluid in it, then it has to be improper set
>>>> up, unfortunately.
>>>>
>>>> Barry
>>>>
>>>>
>>>> From: Greg Blake via Fot <fot at autox.team.net>
>>>> To: Fot <fot at autox.team.net>
>>>> Cc: fot <fot at autox.team.net>
>>>> Sent: Friday, September 7, 2018 6:14 AM
>>>> Subject: Re: [Fot] Fwd: Crown and pinion gear break in
>>>>
>>>> Thanks guys for all the feedback.
>>>>
>>>> So far I have only put the car in the air and pulled the cover. There is
>>>> ample evidence of excessive heat so something went wrong with my setup.
>>>>
>>>> I might get the chance to pull it all out of the car and take some
>>>> measurements on Sunday. Once I do, I?ll share my original setup notes and
>>>> what I measure upon disassembly.
>>>>
>>>> On a related note. I ordered a new gear set from Rimmer on Monday and it
>>>> arrived in Austin today, standard shipping. Amazing. Way faster than some
>>>> of our domestic suppliers.
>>>>
>>>> This new gear set was supplied by Bastuck. Hopefully lasts a little
>>>> longer.
>>>>
>>>> Sent from my iPhone
>>>>
>>>>> On Sep 6, 2018, at 7:41 AM, Rick Parent via Fot <fot at autox.team.net>
>>>>> wrote:
>>>>>
>>>>> Looks like the pinion was way to deep.
>>>>>
>>>>>
>>>>> On Thursday, September 6, 2018 6:38 AM, Bill via Fot <fot at
>>>>> autox.team.net> wrote:
>>>>>
>>>>>
>>>>> I doubt if a break-in procedure could have prevented failure, but as
>>>>> Marcel says, checking the temperature of the diff could have stopped the
>>>>> damage. The likely culprits are incorrect engagement or bad parts, but
>>>>> anything that heats the gears enough to cook the oil off the parts will
>>>>> kill the gears. I had a close call with one of the gear sets I use.
>>>>> Apparently I screwed up somewhere in checking fit?when I pulled the rear
>>>>> end to assess the problem there was no backlash. I have a huge finned
>>>>> differential cover so checking temperature doesn?t help, but I could feel
>>>>> the car slowing quickly between shifts. Fortunately I wasn?t doing my
>>>>> usual clutchless shifts and noticed the sudden deceleration every time I
>>>>> disengaged the clutch. The gear teeth were slightly blued and the oil
>>>>> smelled like a cesspool, but the gears were still usable once I did the
>>>>> setup properly.
>>>>>
>>>>> Bill
>>>>>
>>>>> > On Sep 5, 2018, at 1:48 AM, van.mulders.marcel--- via Fot <fot at
>>>>> > autox.team.net> wrote:
>>>>> >
>>>>> >
>>>>> >
>>>>> > ----- Doorgestuurd bericht -----
>>>>> > Van: "van mulders marcel" <van.mulders.marcel at telenet.be>
>>>>> > Aan: "Greg Blake" <gblake58tr3 at icloud.com>
>>>>> > Verzonden: Woensdag 5 september 2018 10:47:59
>>>>> > Onderwerp: Re: [Fot] Crown and pinion gear break in
>>>>> >
>>>>> > I think it is good measure to check the heat of the differential casing
>>>>> > after a few laps when the pinion and crownwheel are freshly mounted :
>>>>> > when the casing gets very hot, something is wrong : or the parts are
>>>>> > bad or they are mounted not correctly
>>>>> > There are at least 2 manufactures of the TR parts, I forgot about the
>>>>> > names. As far as I know, used original parts are running cooler than
>>>>> > some of the aftermarked parts. How was the noise of the diff? Did you
>>>>> > notice the smell during the first laps?
>>>>> > Marcel
>>>>> >
>>>>> > ----- Oorspronkelijk bericht -----
>>>>> > Van: "fot" <fot at autox.team.net>
>>>>> > Aan: "fot" <fot at autox.team.net>
>>>>> > Verzonden: Woensdag 5 september 2018 03:25:39
>>>>> > Onderwerp: [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.
>>>>> >
>>>>> >
>>>>> >
>>>>> > [image/jpeg:image1.jpeg]
>>>>> >
>>>>> >
>>>>> >
>>>>> > Sent from my iPhone
>>>>> > _______________________________________________
>>>>> > fot at autox.team.net
>>>>> >
>>>>> > http://www.fot-racing.com
>>>>> >
>>>>> > Donate: http://www.team.net/donate.html
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>>>>> > Unsubscribe/Manage:
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>>>>> > telenet.be
>>>>> > _______________________________________________
>>>>> > fot at autox.team.net
>>>>> >
>>>>> > http://www.fot-racing.com
>>>>> >
>>>>> > Donate: http://www.team.net/donate.html
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>>>>> > ponostyle.com
>>>>>
>>>>> >
>>>>> >
>>>>>
>>>>> _______________________________________________
>>>>> fot at autox.team.net
>>>>>
>>>>> http://www.fot-racing.com
>>>>>
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>>>>>
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> fot at autox.team.net
>>>>>
>>>>> http://www.fot-racing.com
>>>>>
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>>>>> at icloud.com
>>>>>
>>>>>
>>>>
>>>> _______________________________________________
>>>> fot at autox.team.net
>>>>
>>>> http://www.fot-racing.com
>>>>
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>>>> bellsouth.net
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> fot at autox.team.net
>>>>
>>>> http://www.fot-racing.com
>>>>
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>>>> gmail.com
>>>>
>>>>
>>>>
>>>
>> _______________________________________________
>> fot at autox.team.net
>>
>> http://www.fot-racing.com
>>
>> Donate: http://www.team.net/donate.html
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>> gmail.com
>>
>>
> <image1.jpeg>
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