Production date markings on C calipers

For those who obsess about exactly how their 356 left the factory!
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Dave Whittick
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Production date markings on C calipers

#1 Post by Dave Whittick »

I haven't noticed any but I was curious to know if there is a date stamp or marking on the caliper body. Curious to know if my calipers are original to the car if they've been replaced at some time during it's life.

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Doug McDonnell
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Re: Production date markings on C calipers

#2 Post by Doug McDonnell »

1965 356C 2000 BMW 740i Sport 1967 Honda CL77 There is never enough time to do it right, but always enough time to do it over.

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Re: Production date markings on C calipers

#3 Post by Brad Ripley »

I've seen a few numbers on C calipers but didn't seem to be any sort of a date code. I would suggest you call Eric at PMB for that question.

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Re: Production date markings on C calipers

#4 Post by Greg Bryan »

I just finished restoring a set of Ate calipers from a 8/65 912 and there was definitely a date stamp on them - week/year. Very small and lightly stamped .....
Greg Bryan

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Re: Production date markings on C calipers

#5 Post by Brad Ripley »

Anybody have photos of the markings on the calipers?
Larger question might be: How to tell the difference in 356C calipers vs early 911 calipers?

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Re: Production date markings on C calipers

#6 Post by Greg Bryan »

These are the markings on the 8/65 912 calipers
Same as the C calipers I believe ....
7DC3F2A2-323A-4FEE-B621-0FC281AD4AB3.jpeg
185 - 18th week of 65
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Re: Production date markings on C calipers

#7 Post by Jim Breazeale »

Greg Bryan wrote:These are the markings on the 8/65 912 calipers
Same as the C calipers I believe ....
7DC3F2A2-323A-4FEE-B621-0FC281AD4AB3.jpeg
185 - 18th week of 65
Greg

Your 912 calipers are not the same as 356C calipers. In fact, there is another caliper that was used between your caliper and a 356C or very early 64 911. I have found date stamps on the 912/911 rear calipers but nothing on any 356 caliper that I have rebuilt (100S of them). Yes, the stampings are very light and borderline unreadable. ATE places just about as much importance on date stamps as I do. Who gives a darn? If you want examples of calipers I would be happy to post pictures.

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Re: Production date markings on C calipers

#8 Post by Greg Bryan »

Thanks for straightening me out on that
I’m too lazy to crawl under my C to look, so I’ll take your word on the no date stamp =8^)
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Re: Production date markings on C calipers

#9 Post by Jim Breazeale »

Dave Whittick wrote:I haven't noticed any but I was curious to know if there is a date stamp or marking on the caliper body. Curious to know if my calipers are original to the car if they've been replaced at some time during it's life.
Dave

Post a picture of your calipers. Many 356Cs have had their calipers replaced with later versions of ATE calipers. 356C calipers are very unique in appearance.

Regards

Jim
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Re: Production date markings on C calipers

#10 Post by Dave Whittick »

Jim Breazeale wrote:
Dave Whittick wrote:I haven't noticed any but I was curious to know if there is a date stamp or marking on the caliper body. Curious to know if my calipers are original to the car if they've been replaced at some time during it's life.
Dave

Post a picture of your calipers. Many 356Cs have had their calipers replaced with later versions of ATE calipers. 356C calipers are very unique in appearance.

Regards

Jim
I’ll scrub them down in the morning and post some pics.

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Re: Production date markings on C calipers

#11 Post by Dave Whittick »

Jim Breazeale wrote:I have found date stamps on the 912/911 rear calipers but nothing on any 356 caliper that I have rebuilt (100S of them). Yes, the stampings are very light and borderline unreadable. ATE places just about as much importance on date stamps as I do. Who gives a darn? If you want examples of calipers I would be happy to post pictures.

Regards

Jim
I would think that the manufacturer would be very interested in the production date for quality control purposes.

Either way, I've found the date codes on the front and rear calipers for my C. 463 on all 4 corners.

Image
Image
Image

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Re: Production date markings on C calipers

#12 Post by Hugo Karasawa »

I found markings on the fronts of a 65C, the rears do not have stamped markings in this car.
For the fronts 514 , on the rears there is only a cast marking.
Attachments
Caliper stamp 01.jpg
Caliper stamp 02.jpg
Caliper stamp 03.jpg
caliper stamp 04.jpg
Cast marking, not punched
Cast marking, not punched
Calipers stamp RR 03.jpg

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Re: Production date markings on C calipers

#13 Post by Jim Breazeale »

I guess I'm going to eat some crow. Unfortunately, I don't have any calipers from a C in the shop at the moment.

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Jim
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Re: Production date markings on C calipers

#14 Post by Dave Whittick »

Jim Breazeale wrote:I guess I'm going to eat some crow. Unfortunately, I don't have any calipers from a C in the shop at the moment.

Regards

Jim
Ha! Not at all. I'm a detail freak and enjoy the hunt for details. 99.99999% of the people out there couldn't care less about whether they're dated or not. I'm the 0.000001% that does. I'd prefer to have my date coded calipers back from PMB rather than traded in as cores.

FWIW, I'm the same guy that tracked down a date coded generator and fuel pump. I like the challenge. I'm that guy.

Thanks for your input.

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Re: Production date markings on C calipers

#15 Post by Dick Roth »

Dave, With all good wishes for your speedy return to health...BTW, have you investigated the date stamp issue on valve caps?

PS Spoken as a total an authenticity freak as off the wall as anyone on this site. Try bringing a works RSK back to "original" in 1977.

RR

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