[Healeys] Fw: Overdrive

[mike brooks]

It's a 4-speed. By the way the O/D on the TriumphB IS a different model - A
type rather than J type from memory. For the Triumph, the thing about
roadspeeds below 30mph is actually in the manual somewhere. So it looks like
the O/D in the Healeys is different.B  I think the hydraulic pressure in my
BN2 O/D is a little low, because it is very influenced by oil viscosity. But
it works fine with 90 gearbox oil (never drops out when I need it) so I will
leave well alone.
B 
Thanks to you both for the input
B 
Mike



-----
Original Message ----
From: John Rowe <jkrowe46 at bigpond.net.au>
Subject: Re:
[Healeys] (no subject)

Mike
Is the 100 a 3 or 4 speed?.The 3 speed has a
speed switch that cuts out 
below 30mph (centrifugal mounted at the rear of
o/d unit. The 4 speed 
doesn't have this unit
John RoweB  Qld AustraliaB  BN1.
BT7
----- Original Message ----- 
From: "John Harper" <ah at jharper.demon.co.uk>
To: "mike brooks" <hypercubic at yahoo.co.uk>
Cc: "Healeys"
<healeys at autox.team.net>
Sent: Thursday, July 24, 2008 4:52 PM
Subject: Re:
[Healeys] (no subject)


> Mike
>
> I don't believe that if an O/D drops out
is a function of speed but more
> one of distance. The O/D pump works on the
output shaft that drives the
> wheels, as you say. If you have been travelling
any significant
> distance, say perhaps 100 feet then the accumulator will be
fully
> charged with something like 400 psi oil pressure available..........