1. What does the pressure switch (see pic) with one wire going to it do? I don't see an oil pressure idiot light so it must supply ground when seeing no oil pressure to either the fuel pump or the ignition. Does anyone know which system it interrupts? My fuel pump is bad so I am converting to a vacuum fuel pump but don't want to loose the no oil pressure warning feature. I could wire this pressure switch to the over temp light on the dash since I replaced this with a digital temp guage so the over temp dash light is unused at the moment.
2. Inside the crankcase, under the oil pump cover, sits a spring over a steel ball. See pics. This must regulate oil pump pressure. It seems odd to me that there is a gap between the spring and the oil pump cover. Does this gap seem correct? I guess that it could be to insure some zero pressure flow before it gets reduced by the spring???? I don't recall ever seeing another set up with a gap though.
Many thanks, Mike
New to this forum and glad to find it. So i have bought a Joyner sand viper 650, 2008 with low compression. I took the motor out and checked the pistons and the ring gap was to big plus the engine had pinged so the upper part of the piston was bad.
So i ordered a new piston set with pistons, rings and pins. But here comes the problem, the new piston has no gap for the c-clip but the old piston had...? Why that? The pin floates perfect in both piston and rod shaft so it can wander away and hit the cylinder walls.
Anyone that has come across the same problem? Im not new when it comes to mechanic but has never come across this problem before.
Hope you understand what i mean, i tried my best.
Has anyone put a different brand motor in a mule with a straight shaft,trifugal if so where did you get a tapered sleeve for the primary clutch to work or what other rough can one take to make this setup work. Will a centrifugal clutch work plus converting to chain driven?