 19/23 mm master cylander, a few questions |
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| proto31 |
 May 3 2006, 12:30 PM
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#1
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Member  Group: Members Posts: 413 Joined: 2-February 06 From: Costa Mesa, CA. Member No.: 5,515 Region Association: None   |
I bought a master cylander last week on ebay, it was supposed to be a 19mm to replace the existing one on my 6. Doesn't seem to be a 19, but rather a 23mm. It actually has 23 stamped on the bottom of its case. Sorry I don't have any pics yet. So I was wondering if anyone knows whether the 19mm had 23 stamped on it... And if this is a 23mm, can I use it with a set of stock 6 calipers? Is there any additional installation that is required?
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| bd1308 |
May 3 2006, 12:44 PM
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
its a 23mm M/C
uh I think thats way too big for stock anything....way too firm. b |
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| GeorgeRud |
May 3 2006, 12:48 PM
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Advanced Member Group: Members Posts: 3,725 Joined: 27-July 05 From: Chicagoland Member No.: 4,482 Region Association: Upper MidWest |
These were used in nonboosted Mercedes cars, and seem to be around. The 23mm will fit with actuation rod modification, but will make the pedal very, very hard on a stock car - really too hard to effectively modulate.
They will work fine if you have large (ie turbo 911) brakes on the car, but they really are only for that use. Stick with the 19mm for a street car. |
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| john rogers |
May 3 2006, 01:04 PM
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Senior Member Group: Members Posts: 1,525 Joined: 4-March 03 From: Chula Vista CA Member No.: 391 |
I'd recommend measuring the bore to be sure. I never trust numbers stamped or cast on parts anymore. If it is a 23mm, as already noted you will also need the alloy steering support or bang a big dent in the stock steel tube one on your car if it is still there.
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| Aaron Cox |
May 3 2006, 01:21 PM
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#5
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
what they said. WAY toooo big for M calipers and 914 rears....
great for 4 psiton calipers on all 4 corners (IMG:style_emoticons/default/smile.gif) |
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| brant |
May 3 2006, 01:36 PM
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#6
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914 Wizard Group: Members Posts: 11,639 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains
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I agree with measuring it to be sure...
many of these are not what the number says. I think I had 19's that were stamped 17, or vica-versa.... measure to be sure and if it is a 23 then resell it and get a 19 brant |
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| proto31 |
May 3 2006, 03:01 PM
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#7
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Member Group: Members Posts: 413 Joined: 2-February 06 From: Costa Mesa, CA. Member No.: 5,515 Region Association: None |
QUOTE(brant @ May 3 2006, 12:36 PM)  I agree with measuring it to be sure... many of these are not what the number says. I think I had 19's that were stamped 17, or vica-versa.... measure to be sure and if it is a 23 then resell it and get a 19 brant Thanks everbody! I'll measure it tonight to be sure. |
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| davep |
May 4 2006, 10:17 AM
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#8
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914 Historian Group: Benefactors Posts: 5,152 Joined: 13-October 03 From: Burford, ON, N0E 1A0 Member No.: 1,244 Region Association: Canada  |
What did you find?
Was it just a casting number or the bore size? A 19mm has an actual bore size of .750", yep 3/4 inches, actually an inch part. |
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