Quote Originally Posted by DOCDRS View Post
[SIZE=2]I know it says vaseline in the manual, but when i put the impeller in that i used the vaseline it went in nice and easy but there was no updraw of water from the lake. I took it out imediately cleaned the inside of the pump and put in my spare old which had not been coated and eveything was fine. I figured somehow the vaseline was preventing a good seal...didn't make sense but i didn't have any problems till I tried the vaseline. Just my experience. i'm am one who if it works for you keep doing it, I am just passing on my experience. When that did happen i did some research into impellers and thats when i found out the petroleum based products should not be left on the impellars for extended lengths of time.
So it seems that the issue you had with Vaseline was not related to using it for storing but rather, the water pump would not draw water thru the intake and you believe this was because the impeller was coated with Vaseline.

Nevertheless, you got me curious so I called Johnson Pump today and spoke to one of their engineers. He said that putting a thin coat of Vaseline on the impeller then putting it in a ziploc bag for the winter will not hurt the impeller. This is also what it says in the Indmar manual that came with my boat. Based on those two things, I will personally continue to use Vaseline on the impeller.

I think everyone should do their own reasearch and do what they're comfortable with.

Thanks,

Al