[Fot] TR6 gearbox rebuild

Mon Nov 15 05:22:08 MST 2021

I don't think the blue color does mean a thing. Some Fot members, like Chuck Gee, will know for sure. 
The standard overdrive ratio's of the Triumph cars (TR, saloons and Stag) are not very different. The ratio is often marked in the casing : something like 25 or 22, but none of the standard ratio's will improve the 3 O/D use that much : the power loss through the overdrive will not be compensated by the better overall gearing, but it can come in handy sometimes to engage 3rd O/D for just a couple of seconds and then again go to 3rd 
Marcel 

Van: "fot" <fot at autox.team.net> 
Aan: "Bob Kramer" <rkramer56 at gmail.com> 
Cc: "fot" <fot at autox.team.net> 
Verzonden: Maandag 15 november 2021 12:10:05 
Onderwerp: Re: [Fot] TR6 gearbox rebuild 

there are several different overdrive ratios, you need to change the sun gear , annulus and 3-gear set 
Terry 

On Mon, Nov 15, 2021 at 11:24 AM Bob Kramer via Fot < [ mailto:fot at autox.team.net | fot at autox.team.net ] > wrote: 

JK Jackson had that all figured out for a non overdrive box with the goal to get a better 2-3 spread. 

Sent from my iPhone 

> On Nov 14, 2021, at 6:36 PM, Greg Blake via Fot < [ mailto:fot at autox.team.net | fot at autox.team.net ] > wrote: 
> 
> I’ve been inspecting the gears I took out of my race car. Second gear appears to have the slightest blue tinge to its color now. Is there a way to check if there is some damage caused by over heating? Everything seems good from a tolerance perspective, just concerned about the slight blue color. 
> 
> Related note. Is there a combination of gears I can use out of different gearboxes to give a better split between 3, 3OD, and 4th? Right now I just skip 3OD because it is very close to 4th. I have a ton of gearboxes laying around, so if there is a combination I should try I’d love to give it a shot. 
> 
> Sent from my iPhone 
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