I have used the factory vacumme pump. I only use it for the moisture removal from the oil.. I did eat a couple of pumps up and then I found an article on what you have to do, to modify on the pump...No problems now.. The best thing about the electric pumps is you can mount it just about anywhere... If anyone wants the info on what to modify on the factory pumps ...send me an email at
dak697@shaw.ca I'll send it off to you ...takes about 15 minutes to do it
Dean