starbiscuit
Well-known member
Hi all,
Looking for some servo advice for drums all round. I know similar questions have been asked here before, but not exactly this one, as far as I could see.
The other half has declared my bus brakes dangerous on account of the effort needed to emergency stop.
I'm OK with the 1970 drums and they sail through MOT, but you do need some leg muscle to achieve short stoppage.
I read some threads, and looked at the Spanish dual-servo that a number of places supply (VW Jim etc.) which is well documented, and I looked at various VW servos, the current Brazilian OEM being possibly best value.
Has anyone tried fitting a VW servo on the standard between-beams plate, but pushing the original 1970 4 drums master cylinder?
Do the servo-to-master cylinder mounting holes and push-rod line up?
Does anyone know if the Brazilian servo-with-master-cylinder will work with 4 drums, or are the circuit bias and residual vales setup for front discs, rear drums only?
I understood that the Brazil buses had wide-5 drums to 1983-ish, and servo option from 1976, so such a thing must exist, but it's not obvious if it's currently available.
Thanks for reading
Looking for some servo advice for drums all round. I know similar questions have been asked here before, but not exactly this one, as far as I could see.
The other half has declared my bus brakes dangerous on account of the effort needed to emergency stop.
I'm OK with the 1970 drums and they sail through MOT, but you do need some leg muscle to achieve short stoppage.
I read some threads, and looked at the Spanish dual-servo that a number of places supply (VW Jim etc.) which is well documented, and I looked at various VW servos, the current Brazilian OEM being possibly best value.
Has anyone tried fitting a VW servo on the standard between-beams plate, but pushing the original 1970 4 drums master cylinder?
Do the servo-to-master cylinder mounting holes and push-rod line up?
Does anyone know if the Brazilian servo-with-master-cylinder will work with 4 drums, or are the circuit bias and residual vales setup for front discs, rear drums only?
I understood that the Brazil buses had wide-5 drums to 1983-ish, and servo option from 1976, so such a thing must exist, but it's not obvious if it's currently available.
Thanks for reading