356A 60mm ventilated backing plates

Discussion of 4-Cam Type 547 engines (and all the Fuhrmann racing variants) and cars that powered them.
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bil brown
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Re: 356A 60mm ventilated backing plates

#16 Post by bil brown » Wed Aug 11, 2021 9:15 am

Here`s my 2 original plates with new stainless screen silver soldered on the vents
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Bill Brown

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Michael Doyle
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Re: 356A 60mm ventilated backing plates

#17 Post by Michael Doyle » Sun Aug 15, 2021 12:56 pm

Very nice job Bill .. looking good.

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Michael Doyle
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Re: 356A 60mm ventilated backing plates

#18 Post by Michael Doyle » Sun Aug 15, 2021 1:05 pm

Michael Doyle wrote:
Thu Jul 22, 2021 8:27 pm
On the subject .. with this question:

Shown are 1957 Werkes GT front backing plates about to be restored. The Rears are ventilated as well. The cylinder mount opening shape is a different on the upper compared to the lower one. Also, the upper has small steel tube pieces welded in on both sides as well. I’m trying to recall what these small tubes are for?

As background, a number of Spyder features were added to this particular factory Carrera GT. Any thoughts? Thanks.

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Michael Doyle
Update 1

I was sent a photo from Marco Marinello of a late original 356A Carrera GT Backing Plate having the steel tubes. He has had other originals in the past as well. He did not know their use, but said the steel tubes were done by Porsche or their manufacturer .. not installed afterwards. /MD
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Michael Doyle
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Re: 356A 60mm ventilated backing plates

#19 Post by Michael Doyle » Sun Aug 15, 2021 1:12 pm

Update 2

From discussions and help from Jacques Lefriant I was able to get these photos from a 550A Spyder Backing Plate .. with Steel tubes and a spring loaded Pin inside. The Brake Cylinder is thought to be Aluminum.

Any and all comments are welcome. Thanks. /MD

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Last edited by Michael Doyle on Sun Aug 15, 2021 10:23 pm, edited 2 times in total.

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Martin Benade
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Re: 356A 60mm ventilated backing plates

#20 Post by Martin Benade » Sun Aug 15, 2021 1:57 pm

I can’t tell much from the pictures or your wording. Are you saying that it was for star wheel detent?
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Michael Doyle
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Re: 356A 60mm ventilated backing plates

#21 Post by Michael Doyle » Sun Aug 15, 2021 2:42 pm

Martin Benade wrote:
Sun Aug 15, 2021 1:57 pm
I can’t tell much from the pictures or your wording. Are you saying that it was for star wheel detent?
Hi Martin,

These are updates to posts on the previously described page. Yes, the thinking so far is a fixed Pin adjuster or holder of the Cylinder star wheel. I’m actually looking for this set up still in use today as an authentic example. /MD

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Re: 356A 60mm ventilated backing plates

#22 Post by Martin Benade » Sun Aug 15, 2021 6:18 pm

Sounds like a harder way to make an equally effective detent. It will be interesting to see if any are in use.
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Don Ahearn
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Re: 356A 60mm ventilated backing plates

#23 Post by Don Ahearn » Sun Nov 21, 2021 2:34 pm

Looking for a full set of 60 mm fronts complete and rear vented plates for B in case any of you gentleman have or know of a set for a T6 GT optioned car I have. Thank you.

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Michael Doyle
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Re: 356A 60mm ventilated backing plates

#24 Post by Michael Doyle » Tue Nov 23, 2021 3:05 pm

Don Ahearn wrote:
Sun Nov 21, 2021 2:34 pm
Looking for a full set of 60 mm fronts complete and rear vented plates for B in case any of you gentleman have or know of a set for a T6 GT optioned car I have. Thank you.
Hi Don,

I believe I can help you out on the fronts. Will let you know when I get them to see what all is there.

/MD

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Re: 356A 60mm ventilated backing plates

#25 Post by David Seeland » Tue Feb 08, 2022 4:47 pm

Hi Don,
I have an excellent pair of original 356B rear ventilated backing plates that I would like to trade for like condition 356A rear backing plates.
David Seeland

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