Series 1 3.8 brake servo bellows replacement.

[Simon S]

Has anyone ever tried replacing the bellows on a S1 brake servo without taking everything out? The servo is fine mechanicallly, it’s just that the bellows have split.

[abowie]

I think that it might come apart from the back.

I haven't got one loose to look at atm.

[mtnjag]

Anything on it in the “Knowledge Base”?

[Simon S]

Anything on it in the “Knowledge Base”?

Good call - I'll take a look

[david muir]

Think those servos were used on quite number of American cars ??

[bitsobrits]

Or maybe none at all.

Seriously, in the last 60 years can’t recall ever seeing a mainstream American car with the bellows type servo as used on the 3.8 E. If any did use that type of servo, I would say it was very few and mostly likely 1950’s vintage.

Edit: Some American cars did use remote servos a la the 4.2 type for a short time in the fifties, before going to the ubiquitous (at least into the '90's) enclosed diaphragm canister style servo mounted directly to the primary (and only) master cylinder.

[abowie]

1958 to 1960 T Bird

[caveman]

1957-1961 Chrysler & DeSoto (Imperial, Fireflite, New Yorker)

[bitsobrits]

I believe Chrysler used only oval bellows.

But I think my point stands: The bellows type servos were not at all common on American cars.

[mtnjag]

GM Y body, 1961-63-
Oldsmobile F85, Buick Special, Pontiac Tempest and their trim variants.
Unibody, the 215ci (3.5l) alum V8 that Rover later bought, front suspension sub assembly, Pontiac had a rear transaxle which tended to fold under in cornering.
Small cars unlike the 64 up A body with the same names.

[Heuer]

From the Forum KB:
Mike Cassidy's Kelsey Hayes brake overhaul
Part 1: https://www.dropbox.com/s/9hzpaajjoce0w ... 1.pdf?dl=1
Part 2: https://www.dropbox.com/s/xqevilada92wy ... 2.pdf?dl=1
Part 3: https://www.dropbox.com/s/v571pwvdeitzh ... 3.pdf?dl=1
Part 4: https://www.dropbox.com/s/j9n3vzpxdbo0v ... 4.pdf?dl=1