Steve---It would seem that the "best" dashpot oil depends on how rich or lean
one has set the (adjustable type) carbs. Rich mixtures tolerate a thinner oil,
which allows the air valves to rise a little quicker, without stumbling.
Conversely, the lean-to-optimum air/fuel mix could require a thicker oil, such
as the 20w/50. It's easy enough to suck out the oil and try different blends,
if you wish. Let the level of acceleration you desire determine the wt. of the
oil. Tests need be taken well below the 3,000rpm mark, as the oil has very
little influence on the rise of the pistons above this engine speed.
Best to leave the stock air valve springs in place, on street engines.
Dick
-----Original Message-----
From: Steve Lindquist
Sent: Sunday, September 7, 2008 3:59 PM
To: 6pack@autox.team.net
Subject: [6pack] Carb dash pot oil
What weight oil are folks using in their carburetor dashpots? I know this
has been asked and answered many times.
Thanks, Steve
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