[Healeys] Fw: Overdrive

[mike brooks]

Thanks Dave you are exactly correct. And as I said in a previous post, Castrol
Hypoy EP90 is NOT the same thing as "hypoid".



----- Original Message ----
From: Dave Russell <rusd at sitestar.net>
To: Mark LaPierre
<lapierrem at sbcglobal.net>
Cc: mike brooks <hypercubic at yahoo.co.uk>;
healeys at autox.team.net
Sent: Friday, 25 July, 2008 6:07:13 AM
Subject: Re:
[Healeys] Fw: Overdrive

Engine oil & gear oil are viscosity rated at
different temperatures.
SAE90 gear oil is about the same viscosity as SAE
40-50 engine oil. Not 
nearly as much heavier as the numbers would suggest.
Dave Russell

Mark LaPierre wrote:

>90Wt.?B  B  Another TR recommendation.B 
Not too many manufactures suggesting
>that heavy gear oil.
>
>I believeB  that
would be in the Hypoid class of lubricants?
>
>Mark
>
>
>----- Original
Message ----- 
>From: "mike brooks" <hypercubic at yahoo.co.uk>
>To:
<healeys at autox.team.net>
>Sent: Thursday, July 24, 2008 6:15 AM
>Subject:
[Healeys] Fw: Overdrive
>
>
>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
>>B  B