Re: Model 71 oil pump adjustment.
Posted by:
SSsssteamer (IP Logged)
Date: April 28, 2007 01:54PM
All Stanley noncondensing car's oil pumps were driven from their engine's cross heads. To set this pump, it takes some fiddeling to finally get it set right. To start out, bleed the pump of air. As the engine is turned over, a pulse of oil should come from the output line of the pump. Too much oil at this point is cheap insurance. The two nuts that are jammed together on the little shaft with a spring is what is set to get the correct metered amount. When you finally get your adjustment close to correct, you will find that adjusting the little jam nuts just one flat makes quite a difference in the rate of oil used. The driven piston from the cross head has to completely clear the incoming port on it's back stroke to allow oil into the pump. I set my non condensing cars oil use rate to 1 quart of oil every 100 miles. Between the winker flashing and the square pattern of oil on the ground below your exhaust stack, you will know if your engine is getting oil or not. If you hear your slide valves squeeking while running, check out your oiling immediately. When I hear this noise while traveling, I will get off the throttle and avoid hard pulls until I can find a wide spot in the road to check it out. Usually it is the oil pump packing nut that needs attention. It is not unusal to have your slide valves squeek occasionally when starting out from a stand still. The slide valves should never chatter.