Cam driven water pumps and engine temp?
#11
Charter Member #655
Charter Member
Thread Starter
mopower could you post more pics of the pump install?The only brass pump that I can find on the site is closer to $250 and $45 for the bracket do you have a part # for your pumps?
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If your boat has a sail do you ride a horse to the ramp?
If your boat has a sail do you ride a horse to the ramp?
Last edited by dyno; 11-18-2003 at 07:30 PM.
#12
VIP Member
VIP Member
I had a cam driven water pump on a 350 in my 1975 18' Donzi. It had a Volvo 280 drive with no impeller in the drive or crank driven seawater pump. It drew water in just fine and cooled the engine great. Believe me, I did not baby it either...
I too have thought about using the same setup in other boats; it is such a pain tightening belts...
I have spoken to a number of marine mechanics about making the switch. I have not found one the has said it's a good idea???
A cam driven pump runs at half the speed as a crank driven or belt driven pump so there is no way that it can flow as much water... 3 out of 4 of the marine mechanics I have spoken to don't even like the idea of eliminating the circulation pump for a cross-over set up. You don't realy gain HP, and the more flow the better...
I have a gen VI big block Volvo setup now with a crank driven sea pump and serpentine belt driven circ. pump. By far the best I have ever had...
I too have thought about using the same setup in other boats; it is such a pain tightening belts...
I have spoken to a number of marine mechanics about making the switch. I have not found one the has said it's a good idea???
A cam driven pump runs at half the speed as a crank driven or belt driven pump so there is no way that it can flow as much water... 3 out of 4 of the marine mechanics I have spoken to don't even like the idea of eliminating the circulation pump for a cross-over set up. You don't realy gain HP, and the more flow the better...
I have a gen VI big block Volvo setup now with a crank driven sea pump and serpentine belt driven circ. pump. By far the best I have ever had...
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Patrick
Patrick
#13
Toxic FORMULA
Platinum Member
Dyno,
I'll get more picks tomorrow, I'm at work right now. I am looking an ad from Basic Power right now and it's $99
I did have to modify the bracket just a little. The original set up had the inlet/outlet of the pump staight up. I rotated mine to abour 8 o'clock. Used a longer hose in from the outdrive right past where the Merc pump was. Also added a gate valve so I can shut it off while in the water and change the impeller without sinking
I'll get more picks tomorrow, I'm at work right now. I am looking an ad from Basic Power right now and it's $99
I did have to modify the bracket just a little. The original set up had the inlet/outlet of the pump staight up. I rotated mine to abour 8 o'clock. Used a longer hose in from the outdrive right past where the Merc pump was. Also added a gate valve so I can shut it off while in the water and change the impeller without sinking
Last edited by mopower; 11-18-2003 at 08:30 PM.
#14
Toxic FORMULA
Platinum Member
That looks about right sut, I'll check mine tomorrow. Its for a BB application. The small bock one is a little shorter. When I talked to them they stated it was used on a number of inboard engines.
Last edited by mopower; 11-18-2003 at 10:12 PM.
#16
Charter Member #655
Charter Member
Thread Starter
cool !!!now I nned to figure out what to do about a fuel pump.....no prvisions on the block so I guess I need an electric. Any reccomendations for an internally regulated one thats good for say 600hp?
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If your boat has a sail do you ride a horse to the ramp?
If your boat has a sail do you ride a horse to the ramp?
Last edited by dyno; 11-19-2003 at 08:28 AM.
#17
Toxic FORMULA
Platinum Member
Dyno...as requested,
After looking at it I remembered the original design was for the hose connections should be on the right( looking from front) along with the bracket. I flipped it over to the opposite side and redrilled the bracet and gave it a little twist. Works great
Note the belt in place , ready to swing around and use incase the other were to break. The hose and bracket keep you from simply installing the belt as usual.
After looking at it I remembered the original design was for the hose connections should be on the right( looking from front) along with the bracket. I flipped it over to the opposite side and redrilled the bracet and gave it a little twist. Works great
Note the belt in place , ready to swing around and use incase the other were to break. The hose and bracket keep you from simply installing the belt as usual.
Last edited by mopower; 11-19-2003 at 10:06 AM.
#18
Toxic FORMULA
Platinum Member
Top hose is in. Bottom hose is out , going to my oil cooler mounted sideways over the bell housing.
I can still use a mech. fuel pump since I have Merlin blocks.
I can still use a mech. fuel pump since I have Merlin blocks.
Last edited by mopower; 11-19-2003 at 10:14 AM.
#20
Charter Member #655
Charter Member
Thread Starter
Thanks man that looks like a much better way to pump water to me!!!
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If your boat has a sail do you ride a horse to the ramp?
If your boat has a sail do you ride a horse to the ramp?