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Dragboat Dad
02-18-2003, 08:46 PM
How do you like to build oil pressure after you have drained and refilled your engine? Do you simply crank it over without starting until pressure comes up and oil is once again flowing in critical places ? Do you prime the oil pump by hand? Or should I not be concerned? This is regarding a blown gas BBC. Thanks

Craig
02-19-2003, 03:59 AM
Only thing I've evber done is to fill the oil filter as much as you can with new oil when you put the new one on. Kind of hard in cases where the filters mounted on an angle though.

Infomaniac
02-19-2003, 04:04 AM
Fill the filter if you can.
Crank it until oil press comes up then throw the ignition on.

gnarley
02-19-2003, 08:35 AM
I remove the distributor & insert an oil pump prime extension that is driven from a 1/2" drill then run it for 5-10 minutes and crank the engine over a few times without sparkes in it making sure it had good O/P while doing so. Then reassemble it & fire.

Dragboat Dad
02-20-2003, 07:03 AM
I had thought about doing that, it would insure you have all the bases covered. Thanks

Blown 472
02-20-2003, 07:06 AM
Why would that be any different then leaving the boat sit for a week or so?? all the oil is going to drain to the pan. :confused:

gnarley
02-20-2003, 08:33 AM
I do it on new engines to aid in break in so I hopefully don't oil starve initially like cam even though pre-lubed and flatten it. Sometimes a new engine may not fire right away and that little extra oil may just help save something even though everything was pre-lubed.

MikeF
02-20-2003, 10:31 AM
Before pulling the switch for the ignition I turn the engine over (via starter button) until the oil pressure builds (mech gauge). Then pull on to fire :D .
You can pull the coil wire to do the same if you have a key type ignition switch idea . (Don't forget to ground it to the block! eek! )
[ February 21, 2003, 05:16 AM: Message edited by: MikeF ]

92Viper
02-20-2003, 10:48 AM
Try a masterlube system. With a flick of a switch and 30 seconds you can make 10 to 15 psi of oil pressure prior to starting. A small investment to make which may extend the life of a motor by years.

Snowboat
02-21-2003, 06:47 AM
I do it the way Info and MikeF do, after the boat has been sitting, or first start of the day. The added benefit is that people always say, "is your boat always that hard to start?".