Quote:
Originally Posted by wheelspin
It has been discussed before, but it's hard to underestimate how much power is needed to turn an oil pump when priming. To illustrate, I use a 25 year old variable speed 1/2" Sears drill that is rated @ 3/4 hp for this task. I have to bury the trigger and hold on tight as the torque tries to twist it out of my hands.
|
Can't kill those old Craftsman drills. I have 1 from the 60s, 500 rpm and I use it. I usually set it so the firewall prevents it from spinning so I don't have to fight the torque and leave it run till I get pressure at both bottom, top and push rods. Figure 500 rpm on pump =s 1000rpm engine. Sometimes it takes a while to prime