[Healeys] Fw: Overdrive

[Charlie Baldwin]

Alan,
Just as Volvo did with their 1800s, 122s and 140 series cars.  They 
suggested to not use overdrive below 40 mph and that to use the clutch 
in either direction if the change was too abrupt.
Even then I don't believe that Volvos were considered cheap cars, nor 
were they known for cutting corners.  They used the D type and J type 
overdrives, both very similar to the A type.  Their overdrives were also 
on both four and six cylinder cars.  The hp rating on the fours got as 
high as 130 hp.  The 164 E probably had a bit more.
They also did not have a problem with their cars wearing out 
prematurely.  I believe Irv Gordon now has over 2.5 million miles on his 
1800 S.
The difference between manufacturers was just different approaches to 
the same problem.  History has borne out that the additional hardware is 
probably not necessary.
Charlie

Alan Seigrist wrote:
> Mike -
>
> Just to clarify the Triumphs used the same "A type" OD as the Healey, and
> the Jag XK 140s and 150s.  The only reason why Triumph didn't put the
> throttle switch on their cars was that Triumph was the cheapest car of the
> lot and they left the switch off to cut corners and substituted that with
> instructions for specified use in the manual.
>
> Alan
>
> '52 A90
> '53 BN1
> '64 BJ8
>
> On Thu, Jul 24, 2008 at 6:15 PM, mike brooks <hypercubic at yahoo.co.uk> wrote:
>
>   
>> 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
>>     
> _______________________________________________
> Support Team.Net http://www.team.net/donate.html
>
> Healeys at autox.team.net
> http://autox.team.net/mailman/listinfo/healeys
>
> You are subscribed as mgcharlie at comcast.net
>
> http://www.team.net/archive

[demime 1.01d removed an attachment of type text/x-vcard which had a name of mgcharlie.vcf]