bill,
I believe the bore is large enough, but I say that without any data to back
up the statement...(other than the larger pipe outlet sizes), but it seems
logical to me that it would be so. The Ford Crowne Vic was a large heavy
vehicle after all. And it also seems appropriate to now consider a Ford
part acceptable on a Land Rover product.
While the Crowne Vic MC ("CV") is a bolt in replacement for the original
Girling dual circuit CB, some additional work is needed.
First, the pushrod needs to be extended about 7/8ths inch...a simple
aluminum insert can be used, or as I did, cut 7/8" off the end of the CB
pushrod and weld it to the Crowne Vic's pushrod, carefully grinding the weld
back to proper size.
Also, the "CV" inlets are of 2 different sizes and are on the opposite side
(engine side for a LHD truck). Napa can sell you the 6" pipe&adapters to
take the inlet sizes down to 3/16".
You can then just reform the original lines, or cut,shorten and re-flare the
original pipes using the original ends, and a 3/16" union fitting to join
them.
The Crowne Vic MC has the bail-lock style top cover with the expanding
gasket/seal common on US made MCs. The front fluid chamber is twice the
volume of the rear chamber (and I presume this is so to allow for more rapid
wear for the front brake shoe linings or pads, thus the need for a larger
volume of brake fluid. The front pipe outlet is a larger size (5/16")than
the rear outlet(1/4"). Though I adapted both down to 3/16" pipe and
fittings, you could retain the larger pipe and fitting size all the way to
the front junction, but I don't see the need or benefit on an 88.
The "CV" is quite a bit larger MC than the CB and thus it occupies a larger
amount of under-bonnet real estate, but it posed no clearance problems on my
88, even though equipped with an APB SU/manifold setup, similar to ACR's.
If your CB is in good nick, keep it, but if you need a replacement, the "CV"
is a reasonable and inexpensive replacement, IMHO.
JT/ric
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
I know sev. folks who run these on their 88s--is its bore diameter large
enough to work the 109 fronts? I already have the regular rover
dual-circuit master, but if this thing costs $35 and has a big ol' bore
front and back . . .
bill
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