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Re: [TR] Brake Caliper Confusion

To: <triumphs@autox.team.net>
Subject: Re: [TR] Brake Caliper Confusion
From: "Wayne Lee" <motorcarriage@charter.net>
Date: Wed, 3 Oct 2007 21:51:02 -0400
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Hi Bob,
     I don't know where the M16P label came from, as I've never heard of it, 
I was referring
to the late 72 on (PB Caliper as I've known it) Caliper as having 12 mm.. 
mounting holes.
That is the Metric Caliper. That's what's special about the Bolts, mounts a 
Metric Caliper
with it's 12 mm.through holes, to an Upright with  7/16-20 UNF threaded 
holes.
Regards,
Wayne Lee
75 TR6
64 TR4
58 TR3

----- Original Message ----- 
From: "Bob Danielson" <75TR6@tr6.danielsonfamily.org>
To: "'Triumph List'" <triumphs@autox.team.net>; <6pack@autox.team.net>
Sent: Wednesday, October 03, 2007 8:48 PM
Subject: [TR] Brake Caliper Confusion


> The proper bolts to use on the calipers is timely for me as a brake system
> rebuild is one of my winter projects. But I'm confused over the timing
> switch to the metric caliper bolts. What I think I've read here is that 
> the
> TR6's with 16PB calipers got the metric bolts but that's contradictory to
> what the TRF Blue Book says as follows:
>
> 16P Caliper, Imperial - up to CC29929 (early '69)
> 16PB Caliper, Imperial - from CC29930 and up to CC81078 (late '69 - mid 
> '72)
> M16P Caliper, Metric - after CC81078 (late '72 on)
>
> However....if you look at the Moss and TRF catalogs, there's no mention of
> the M16P caliper and they've labeled the 16PB as Metric, yet the 
> commission
> numbers match the Blue Book. Is the TRF Blue Book wrong? Or am I just
> interpreting this wrong?
>
> My '76, CF38503 has calipers stamped 16PB which would be correct per the
> catalogs but not the Blue Book.
>
> Thanks
>
> Bob
>
> Bob Danielson
> 1975 TR6 CF38503U

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