note, Bryan Ditchman (Caribbean Blue 0265) sets out information
on the RV8 brakes. Some additional information is provided by Roger
Parker (Green 4092). (Nov 99)
pads and calipers
These were developed from those used on the Princess saloon
and the calipers have a spacer in the centre to take up the extra
width of the wider and ventilated discs on the RV8. The calipers
are 4-pot and take larger pads than the BV8 having an anti-squeal
material bonded on the back in place of the shims. The pad retainers
are as on the BV8 but a half an inch wider, as are the split pins.
Note, the retainer and split pins are only available with the full
pad set from Rover under part number GBP90332 AF coming at
just over £100 per set!!
Note - Roger
Parker adds that the calipers used on the RV8 were developed from
those used on the earlier Ambassador and Princess but are made wider
by introducing a spacer in the middle to take the ventilated discs
- hence the wider clips and pin. The RV8 callipers comes under part
numbers GBC90182 (LH) and GBC90183 (RH).
also adds that the pads are identical to those used on the Princess
and are found under part numbers Girling GBD752 or Lockheed
LP47. Of note is the fact that the later Ambassador models
used an identical calliper to that fitted to the Princess and the
pads differed only in that they use a pad wear sensor. Those wishing
to modify their systems may find this of use - they are listed by
Girling under GBD771. He notes that the common use of the
Princess & Ambassador callipers for high performance
to RV8 Workshop Notes Contents listing
conversions on other
cars as well as some early 1990s standard Morgan models. This means
that there is a full range of high performance pad options available
from the usual sources such as Mintex, Ferrodo and other suppliers.
The rear drums are a smaller diameter than the BV8, being 229mm
in place of 254mm, and the shoes differ in that the leading shoes
- the thicker ones are connected to the automatic adjuster mechanism
and the thinner rear shoes are connected to the handbrake cables.
Note there are two handbrake cables on the RV8 part numbers GVC1073-RH
and GVC1074-LH which in turn connect via a compensator ZKC5950
to the handbrake lever. The shoes come as an axle set under GBS901165
AF, and a kit of six tension and pull off springs is available
under part number RTC4475A.
that the rear brake shoes are listed under Girling GS6140 and
Lockheed LS1201. It is worth noting that these are the same
units as are used on the Transit 80, 100 and 120 Mk 2 vans from 1976
to 1986. The Sherpa 350 from 1983 to 1985, then the Sherpa V8 van
from 1986 to 1989 and finally the Sherpa 200, except minibuses, from
April 1989 all use the same shoes.
hoses, cylinders and repair kits - please refer to RV8 Workshop Notes
No 6. See also RV8 Workshop Note 152, also available on this website.
reserved by the V8 Register - MG Car Club