[Healeys] Gearbox oil volume
rchaskell at earthlink.net
Tue May 26 04:04:00 MDT 2015
The fill "plug" on a big Austin-Healey gearbox is the dip stick hole, on
the top side. Just use the dip stick to check level.
AHCA 3000 Mk I registrar
On 05/26/2015 02:27 AM, Oudesluys wrote:
> Nonsense. Expansion is no issue, you would not even notice it if you
> could measure the level on a dipstick. Anyway, the variety in the
> castings will give you more differences in volume than expansion.
> Filling to the level of the filler plug hole is recommended by
> practically every motor manufacturer of the day. This way it is certain
> that it is properly filled.
> There is plenty of space filled with air above the filler plug hole if
> you are worried about expansion. Most of the time the filler plug hole
> is about halfway up the casting.
> Kees Oudesluijs
> Bob Spidell schreef op 26-5-2015 om 7:21:
>> On the original volume question, I'm not comfortable with filling 'til
>> it overflows.' I think you need some head space to allow for
>> expansion of the oil as it heats up.
>> On 5/25/2015 9:09 PM, Earl Kagna wrote:
>>> Redline MT 90 is the way to go – a slightly heavier version of MTL,
>>> which oddly enough stands for Manual Transaxle Lubricant. It is
>>> formulated with friction enhancers for that use, which is why it
>>> works so well in the overdrive – the cone clutch likes the stuff, as
>>> do the synchro rings in the gearbox. Just my opinion, there are
>>> those who would disagree.
>>> I doubt that the leak pattern will be any different. Oil leaks in
>>> Healeys are reassuring – if there is no oil leaking from a British
>>> car, it’s probably empty!
>>> Earl Kagna
>>> Victoria, B.C.
>>> BJ8, BT7 tri-carb
>>> *From:* Roggrace <mailto:roggrace at telus.net>
>>> *Sent:* Monday, May 25, 2015 6:15 PM
>>> *To:* Michael Oritt <mailto:michael.oritt at gmail.com>
>>> *Cc:* Austin Healey <mailto:healeys at autox.team.net>
>>> *Subject:* Re: [Healeys] Gearbox oil volume
>>> I am about to change my g/b and o/d oil for first time since taking
>>> ownership; just to be sure that I know what is in there;
>>> and I don't want to start another gearbox oil discussion. .....
>>> However so many people recommend MTL or MT90 that are both synthetic.
>>> I am a little reluctant to as don't need any new oil leaks with
>>> synthetic; maybe already have synthetic ,,,.?
>>> Anyhow for convenience was planning to use same as use in engine -
>>> Valvoline VR1 20-50
>>> Any thoughts regarding synthetic oil and gearbox leaks from more
>>> experienced users appreciated.
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