ORIGINAL: SrTelemaster150
ORIGINAL: 1QwkSport2.5r
Been there and done that. If I put the shaft of the pump in a drill, It will pump fuel to the moon just about. Hook the electric pump motor back up and it might squirt a a little fuel, but stops quickly. . Pull the electric motor from new pump and install in old pump, works perfect. Old motor in new pump, no worky.
Trust me, the motor is just tired. I'm saving the old pump in case something else I take apart has a motor small enough to fit the case. Both pump mechanisms feel the same, the new one slightly stiffer to turn than the old one.
Aha, so it sounds like the MK II & the MK III are indeed (basically) the same pump dressed up for different centuries.
I might just get a MK II to have on hand in case my 16 year old MK II finally bites the dust.
They are essentially the same thing internally. The two are set up slightly different inside, but the pump mechanism itself is the same. Looks identical. The MK III looks to have a slightly larger motor in it, IIRC. Its been awhile since I had it apart though.