HiVolume-or- Hi pressure oil pump
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HiVolume-or- Hi pressure oil pump
I am rebuilding the 502 blower motor in my boat and I was wondering if there is concerns using either type of pump? I personally dont care wich one it is but Id like to know what you guys have found and or running? I have the merc 8 Qt pan. Thanks Greg
#2
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Re: HiVolume-or- Hi pressure oil pump
High volume is what you need, pressure that is too high is not your friend. And it takes more horsepower to raise the pressure over what is normally used. Also most blower motors are set up with looser bearing tolerances which will need a lot of volume to keep the pressure normal.
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Re: HiVolume-or- Hi pressure oil pump
Originally Posted by insptech
High volume is what you need, pressure that is too high is not your friend. And it takes more horsepower to raise the pressure over what is normally used. Also most blower motors are set up with looser bearing tolerances which will need a lot of volume to keep the pressure normal.
#4
Re: HiVolume-or- Hi pressure oil pump
Go thru my little thread ,theres some info on oil pumps and part #;s
hope this helps
rob
http://www.offshoreonly.com/forums/s...ghlight=500efi
hope this helps
rob
http://www.offshoreonly.com/forums/s...ghlight=500efi
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Re: HiVolume-or- Hi pressure oil pump
I HAVE HEARD DIFFERENT THINGS ABOUT OIL PRESSURE AND VOLUME...........NO ARGUMENT FROM ME ABOUT VOLUME, BUT I WILL ARGUE ABOUT PRESSURE I LIKE TO SEE 80 POUNDS ALL THE TIME. MY ENGINE BUILDER HOSED ME ON THE PUMP JUST A PLAIN BIG BLOCK PUMP. I GUESS THATS WHY I AM REPLACING THE CAM KNOW.....BUT I DID PUT IN THE MOROSSO BILLIT PUMP AND SHIMMED THE SPRING FOR MORE PRESSURE.....
RESON WHY I LIKE PRESSURE IS BECAUSE OIL OBVIOUSLY GETS HOT IN A MARINE ENGINE, NO SHOCKER THERE, SO WHY NOT AT LEAST KEEP BLOWING THE OIL ON THE ROTATING PARTS EVEN IF IT IS HOT.
aGREED THAT TO MUCH WILL CAUSE A BLOW BY BUT AT LEAST IT IS STILL TOUCHING THE PARTS THAT NEED IT.....
IF I AM WRONG JUST KICK ME IN THE NUTS IF YOU EVER SEE ME......
REBUTTLE PLEASE//////////
RESON WHY I LIKE PRESSURE IS BECAUSE OIL OBVIOUSLY GETS HOT IN A MARINE ENGINE, NO SHOCKER THERE, SO WHY NOT AT LEAST KEEP BLOWING THE OIL ON THE ROTATING PARTS EVEN IF IT IS HOT.
aGREED THAT TO MUCH WILL CAUSE A BLOW BY BUT AT LEAST IT IS STILL TOUCHING THE PARTS THAT NEED IT.....
IF I AM WRONG JUST KICK ME IN THE NUTS IF YOU EVER SEE ME......
REBUTTLE PLEASE//////////
#7
Re: HiVolume-or- Hi pressure oil pump
I was told by a few well known engine builders that the BBC does not have a oiling prob so why try to fix something thats not broken,.But ya also got to consider that some of us run LOOSE bearing clearances.
Me I run the pump(#) in my thread and my engine is real loose on the bottom end so the pressure is lower still
Me I run the pump(#) in my thread and my engine is real loose on the bottom end so the pressure is lower still
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#8
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Re: HiVolume-or- Hi pressure oil pump
Hey Strip,,,,,,,
My Oil Pressure Was At 40 Pounds Cruising And Coming Off Plane It Would Drop To 15 That Pump Was Just Stock Due You Think I Wasted Money On TheNEW Pump
My Oil Pressure Was At 40 Pounds Cruising And Coming Off Plane It Would Drop To 15 That Pump Was Just Stock Due You Think I Wasted Money On TheNEW Pump
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Re: HiVolume-or- Hi pressure oil pump
Originally Posted by nocigarette
Hey Strip,,,,,,,
My Oil Pressure Was At 40 Pounds Cruising And Coming Off Plane It Would Drop To 15 That Pump Was Just Stock Due You Think I Wasted Money On TheNEW Pump
My Oil Pressure Was At 40 Pounds Cruising And Coming Off Plane It Would Drop To 15 That Pump Was Just Stock Due You Think I Wasted Money On TheNEW Pump
I'm assuming that you know your oil temps and that they are reasonable.
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Re: HiVolume-or- Hi pressure oil pump
Yes There Resonable, How Are Ya Wobble........
I Am Not Trying To Sound Like I Konw Anything Just Sharing My Expierience With My Motor
I Am Not Trying To Sound Like I Konw Anything Just Sharing My Expierience With My Motor