Brake maintenance time for unknown PO swap

[wagohn]

[ivwshane]

I got the drum off finally what a pita. It wasn't stuck to the hub and it spun freely so I don't know what it was. I eventually just opened the bleeder valve to see if it was just some tight shoes. After that I finally got it off. The good news is that everything is as dry as a bone, a rusty bone but dry.


This may be a dumb question but if I get the did brakes working with the type IV motor, what will I have to do if I swapped it for a type 1? The reason for doing this is because I have a type 1 motor I could use while I refurbish and convert the type 4 to FI.
_________________
77 westy 2.0 FI
69 ghia coup 1600dp
70 single cab

[Wildthings]

All the motor does is supply manifold vacuum for the power brakes to work, so there will hardly be a difference between the two.

[ivwshane]

[airschooled]

It looks like someone put an early bay MC and late bay brakes all over. You could get the proper late booster and MC, since you have the mounting plate and likely want fresh components anyway. (The new boosters I’ve tried have all been pretty uncontrollable. Go for a rebuilt original, or Guinea Pig the genuine VW boo$ter available from BD for us.)

I don’t know if the MC internals are different early to late, but factory discs without the booster suck, in my opinion. Is there a proportioning valve? You’ll want that if you keep the front discs. Pay special attention to the mounting angle; get it wrong and you will have spooky random lockups.

Power brakes do not care what powers them. You could stick a [insert engine here] in there, and your brakes will feel the same as your late bay..

Robbie
_________________
Learn how your vintage VW works. And why it doesn't!
One-on-one tech help for your Volkswagen:
www.airschooled.com

[Wildthings]

[airschooled]

As far as the T1 vacuum hookup, I harked this pic from busdaddy’s gallery... see the 1/2” hose running over the coil? It connects at the junction of the vertical/horizontal intake manifold pipes, so even if you mash your foot on the brakes it won’t interrupt airflow too much.

For parts searching, its essentially the same manifold as the auto-stick Type 1 engines, though some purveyors of those part$ think they shit gold bars or something....

Robbie
_________________
Learn how your vintage VW works. And why it doesn't!
One-on-one tech help for your Volkswagen:
www.airschooled.com

[ivwshane]

I did not see a proportioning valve.
_________________
77 westy 2.0 FI
69 ghia coup 1600dp
70 single cab

[ivwshane]

Thanks guys! I'm getting my plan together and making a parts list.
_________________
77 westy 2.0 FI
69 ghia coup 1600dp
70 single cab

[Wildthings]