Scooby
02-14-2005, 06:45
I wanted to check my lift pump pressure, so I put a gauge on the end of the water drain hose and read it there. Engine off, it peaks at about 5.5 . enging idling, it reads 4.5 . rev it a little (in park) and it drops to 2 or less. I thought maybe my Dahl 3 micron filter might be restricting it a little, so I bypassed it. No change in pressure.
Is the lift pump supposed to maintain the 4.5 psi?? I checked the factory manual, and it doesnt say. It just says to check pressure, then check flow in a container. No running pressure check.
Before all my mods, I used to get a lot of smoke under acceleration. Now I dont see much smoke. Maybe now there is enough air to burn all the fuel. Also, I havent towed anything heavy, and dont have big hills in Fla to really put it to it. When I stomp it, it just goes. I look down, there goes 85---90---95... then some. EGT doesnt go too high with no heavy load. Just want to make sure the fuel is there if I want it.
Is the lift pump supposed to maintain the 4.5 psi?? I checked the factory manual, and it doesnt say. It just says to check pressure, then check flow in a container. No running pressure check.
Before all my mods, I used to get a lot of smoke under acceleration. Now I dont see much smoke. Maybe now there is enough air to burn all the fuel. Also, I havent towed anything heavy, and dont have big hills in Fla to really put it to it. When I stomp it, it just goes. I look down, there goes 85---90---95... then some. EGT doesnt go too high with no heavy load. Just want to make sure the fuel is there if I want it.