Re: Oil in Intake Manifold

Posted by hynesjm On 2017/12/19 23:00:17

So I pulled a vacuum on the vacuum pump side of the fuel/vacuum pump and it did not hold a vacuum, but, it wasn't a huge leak.

20-15 in-hg ~ 5 sec
15-10 in-hg ~ 15 sec
10-5 in-hg ~45 seconds
5-0 in-hg ~ 2 minutes

I think i'm going to loop the vacuum pump for now and "collect more data". I did suck out some oily fuel from the bottom of the manifold, but it seemed to be more gas than oil.

I guess I should also make sure the gas side of the pump isn't leaking oil into the fuel.