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pierro
Joined: 15 Nov 2016
Posts: 16
Location: France
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 Posted: Sat Mar 28, 2026 10:16 pm Post subject: 924 brake push rod adjustment |
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After installing a new master brake cylinder i'm having a long brake pedal travel.
I'f noticed an adjustment of the push rod length behind the brake pedal.
How do you adjust the brake pedal push rod at the brake pedal side?
Currently my brake start at the bottom of the pedal travel, despite a complete brake bleeding with no air that came out of it.
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Porsche 924 1983restored
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924RACR
Joined: 29 Jul 2001
Posts: 9063
Location: Royal Oak, MI, USA
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| Posted: Sun Mar 29, 2026 2:40 am Post subject: |
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Do you have rear drums? If so - those probably need to be adjusted... being too loose will cause a lot of pedal travel before the brakes engage, since you have to take up all that slack first...
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Vaughan Scott
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'79 924 #77 SCCA H Prod racecar
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pierro
Joined: 15 Nov 2016
Posts: 16
Location: France
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| Posted: Sun Mar 29, 2026 3:20 am Post subject: |
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Yes i have drums at the rear, but they have been adjusted for minimum play.
So the only thing that remains is the length of the push rod ( which is adjustable) to be checked for correctness.
_________________
Porsche 924 1983restored
MG-Midget 1974 restored
Citroen 2CV 1986 restored
Rover Mini 1275 1992 restored
Mazda MX-5 1.8 for the fun
Toyota Lancruiser Prado daily driver
Merceds Benz W124 230E for the quality |
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924RACR
Joined: 29 Jul 2001
Posts: 9063
Location: Royal Oak, MI, USA
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| Posted: Sun Mar 29, 2026 4:04 am Post subject: |
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OK; per the manual, when brakes and hand lever are adjusted, pulling the park brake lever up two teeth should mean that you are only just able to rotate the wheels by hand... but they should be free when the handle is fully down.
As for the pushrod adjustment, "length from the bearing surface of the brake booster on connector (mounting part) to center of swivel joint shaft pin must be 186 +/- 1mm."
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Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype |
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SPLIFFMEISTER
Joined: 20 May 2010
Posts: 2
Location: North Devon England
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| Posted: Sun Mar 29, 2026 4:16 am Post subject: |
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A long pedal suggests that there could well still be air in the system. Might be worth going round and re bleeding .
Nick |
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