From:Dave Molnar e-mail:dave@impax.on.ca
Subject:RE: An oil starvation FWI... i meen FYI! Date:Tue Jul 3 13:59:17 2012
Response to:4159
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I was wondering if anyone out there has a KJ oil pump on their Deluxe motor. This was a fairly popular modification back in the day, I'm told. If you do you might experience oil starvation especially with thicker oils and particularly going up fairly steep hills or hitting the brakes while at speed. That is a pretty big transmission housing back there. Not only that but depending on how much bypass you are running you could be all but filling the gear cover too. I was amazed when I took off my oil cap, engine running, in my shop, and watched how low the oil level dropped as I increased engine speed. Now imaging hitting the brakes and the pick-up screen is high and dry!

I do get intermittant oil starvation even if I over-fill the sump (in certain conditions). I run Rotella. The 15-40, being a little thinner, seems to get back to the pan faster even with extra holes in the sump cover. I going to develop a new sump baffle system that will keep the oil near the pick-up screen during braking conditions.

Kind of strange when you think about it. You put on a bigger pump and you expect to be doing some good for the oil system but in fact, at the end of the day you might have take a step back!!!