Tank5
SILVER Star
- Thread starter
- #221
I am waiting on the 3/8 winch plate to finish the bumper, so I started working on the fan shroud.
I have convinced my self that using a mechanical fan would be better than an electric fan if I can make it fit. The 2uz 100 series fan was originally 20.5 inches I believe. It wouldn’t fit, so I went looking for something smaller at the scrap yard.
I found that the Isuzu trooper and rodeo used an Aisin Fan clutch that measured the same and the fan blades had the correct orientation. I bought one from each. The depth was different, and they both measured 18.5-19 inches. I found both of them hit the oil filter mount because the depth was different. The cut down 2uz fan is pictured at the bottom.
I kept looking and found that the 1uz used an 18.5 inch fan and just barely cleared the oil filter and power steering box. I used this fan to build my shroud with. I spaced the steering box a 1/2 inch off the frame which was as much as I could without creating other problems.
This is the unfinished shroud mocked up. Because of the tight clearance by the power steering box I had to make a flat spot in the circle to get around the steering box. I am considering building it and then going back and cutting the spot out of the shroud that touches the steering box.
I have no idea how effective this fan will be offset to the side the way it is. There really isn’t much room to move the engine to passenger side any further than it is. If this doesn’t work my only other option is to go electric.
In my research I found others said that when the 2uz was towing or climbing that the electric fan was not able to keep the engine cool. This is for the most part my reason for trying to make the mechanical fan work. Originally I had planned to go with an electric fan but found the other information later.
I am planning to use a Ron Davis aluminum radiator designed for SBC conversions to go in front of the fan. How effective do you think my offset fan will be?
I have convinced my self that using a mechanical fan would be better than an electric fan if I can make it fit. The 2uz 100 series fan was originally 20.5 inches I believe. It wouldn’t fit, so I went looking for something smaller at the scrap yard.
I found that the Isuzu trooper and rodeo used an Aisin Fan clutch that measured the same and the fan blades had the correct orientation. I bought one from each. The depth was different, and they both measured 18.5-19 inches. I found both of them hit the oil filter mount because the depth was different. The cut down 2uz fan is pictured at the bottom.
I kept looking and found that the 1uz used an 18.5 inch fan and just barely cleared the oil filter and power steering box. I used this fan to build my shroud with. I spaced the steering box a 1/2 inch off the frame which was as much as I could without creating other problems.
This is the unfinished shroud mocked up. Because of the tight clearance by the power steering box I had to make a flat spot in the circle to get around the steering box. I am considering building it and then going back and cutting the spot out of the shroud that touches the steering box.
I have no idea how effective this fan will be offset to the side the way it is. There really isn’t much room to move the engine to passenger side any further than it is. If this doesn’t work my only other option is to go electric.
In my research I found others said that when the 2uz was towing or climbing that the electric fan was not able to keep the engine cool. This is for the most part my reason for trying to make the mechanical fan work. Originally I had planned to go with an electric fan but found the other information later.
I am planning to use a Ron Davis aluminum radiator designed for SBC conversions to go in front of the fan. How effective do you think my offset fan will be?