From:Dave Hennessey e-mail:dave@toyhouse.org
Subject:RE: Oil Pressure Guage - Date:Mon Mar 3 08:32:10 2008
Response to:1978
Peter,

Thanks for the explanation!

The Pat Williams Racing website mentions D&W plating who does Cadmium plating. That's pretty hard to find these days!

Although Hens were mainly nickel, other bikes used a lot of cad. Any more info on D&W?

Dave




----- ORIGINAL MESSAGE FOLLOWS -----
Howdy Chaps,

An Indian 4 interloper from the AMCA/Virtual Indian (peterg440)within your midst here. Dave Hennessey, saw your oil guage notes under Miscellanous Stuff and mention of an "adjustment" screw. Though Kevin Flannagan's way more qualified than I to comment on its function. In a fit of over overpreparation for Bike Week, assembled a spare guage for my 441 last evening and that scew is actually like a small carb jet.

So, my thinking is that it is there to protect against the same water hammer effect you are subjected to in your home when operating solenoid valve equiped appliances (washing machine) in your water system that behoove one to fit a damper valve. In this case, you'd be protecting this fragile device from trashing it's linkage on cold start up with the onrush of oil and dampening it's return to its peg stop when cutting the throttle.

Cheerio,
Peter
1950 Vincent Rapide - A Red Rapide Experience -
http://www.patwilliamsracing.com/vincent