[Healeys] Dashpot OIl Wt

[Alan Seigrist]

All heavy oil does is make the mixture much richer on acceleration.  If
there is no difference with acceleration, then I would go to the lighter
oil because you won't be wasting so much fuel.  Seems counterintuitive but
heavy oil acts to make the "accellerator pump" work harder and push more
fuel into the engine on acceleration.

Cheers,

Alan


On Wed, Jun 16, 2021 at 4:54 AM Michael MacLean via Healeys <
healeys at autox.team.net> wrote:

> I watched a recent John Twist YouTube video today on fitting H type SU
> carbs to a T type MG.  In the video he says to use 90 wt gear oil in the
> dashpot.  He also said the lighter oils and ATF that so many people
> recommend contribute to the early wear and tear on the carb.  Anyone else
> using this weight oil in the carb?  All my life I have been putting 20 wt
> oil in the dashpot.
> Mike MacLean
>
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