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[Fot] Trouble with Porterfield Brake Pads

Subject: [Fot] Trouble with Porterfield Brake Pads
From: dlhogye at comcast.net (DAVE HOGYE)
Date: Wed, 7 Mar 2018 20:28:41 -0800 (PST)
References: <53700.1520477965@mitchelplumbing.com>
Yes!  I had to shim my rotors because the inside pad would not fit.  Total 
PITA.  Shimming the caliper is a breeze with factory shims.  


DH

> On March 7, 2018 at 6:59 PM Charly via Fot wrote:
> 
> 
>     I have used all sorts of brake pads for my 16p caliper on my 69 TR6, 
> Porterfield, Hawks, LBC, and others from ceramic to semi metallic. I always 
> plan to drill them out, sometimes
>     I get what I think are pads for 16PB, which I think have smaller holes. 
> I've had problems with the height being to tall and not sliding in the 
> caliper, some being different
>     thickness and having trouble inserting them. I always plan to modify them 
> to make them fit, sometimes I've had to reshim the caliper mount to move it 
> over a few thousands to
>     center it. I just think of it as part of making the brakes work. I'm now 
> doing mine twice a year, must be going faster or braking harder!
>     Charly Mitchel
>     TR6 #44
> 
>     On Wed 07/03/18 4:21 PM , Brad Eells via Fot fot at autox.team mailto:fot 
> at autox.team .net sent:
> 
>         > > Hello Amici,
> >         Porterfield brake pads in the R4-1 compound were recommended to me. 
> > I
> >         dutifully ordered a set for my Spitfire.
> >         I should mention the car has been upgraded to GT6 brake calipers, 
> > the
> >         venerable Girling 16P. My TR4 and 4A also use the 16P. I have been
> >         buying brake pads for these cars for over 35 years.
> >         I have had my calipers rebuilt and purchased new retaining pins as
> >         well. The Porterfield pads arrived. I found 2 issues. The pad 
> > compound
> >         shape was not the same as every pad I have previously purchased or
> >         what is shown on Porterfield's website. I also found the retaining
> >         pin holes in the puck to be too small. The puck itself is the same
> >         general dimension as my original Girling Competition pad and does 
> > fit
> >         in the caliper but I cannot put the pins through the holes.
> >         I simply assumed they had sent pads for the later GT6, the Girling
> >         16PB or M16PB that use 3/16" retaining pins.
> >         8 Emails with manager, Wendy and 1 phone call with engineer Tim and 
> > we
> >         still have a disagreement. I was told they had sold that exact pad
> >         "for 25 years" for my application and no one had ever had a problem 
> > or
> >         complained. When I asked why I couldn't simply have what was shown
> >         on their website as the pad for the 16P, I was told that was just a
> >         general illustration and not correct for any specific application.
> >         They have offered to drill out the retaining pin holes to fit my 
> > pins.
> >         I am honestly disappointed that I simply can't have what fits out
> >         of the box and to have to argue the point back and forth through
> >         multiple Emails and a terse phone call.
> >         So, my questions to those of you running a 16P (late TR3 through 
> > early
> >         TR6 and GT6 1968-72 along with many other British applications) are:
> >            1. Are you using Porterfield pads in your calipers?
> >            2. Have you found them to fit the standard 1/4" retaining pin?
> >            3. If you have found them to not fit the pins, are you drilling 
> > them
> > 
> >         out yourself?
> >            1. Does the difference in pad shape concern you at all (photo
> > 
> >         attached)?
> >            1. If not Porterfield, then what are you using? Without 
> > divulging any
> > 
> >         speed secrets, of course...
> >         I'm close enough to their facility that I can appear there with my
> >         pins, pads and calipers to prove what they disbelieve...it just
> >         shouldn't have to come to that with a reputable company from my
> >         view...
> >         Your thoughts and experience are appreciated.
> > 
> > 
> >         Thanks!
> > 
> >         BRAD EELLSCHINO CA#35 DP 1962 TRIUMPH TR4#76 FP 1969 TRIUMPH 
> > SPITFIRE
> >         MK31965 TRIUMPH TR4A IRS...FOR THE ROAD!
> > 
> >     >     _______________________________________________
>     fot at autox.team mailto:fot at autox.team .net
> 
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