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If the wp threads are right hand ( like a normal bolt), then it's a reverse rotation pump, and you need a fan that spins counter clockwise while looking at the front of the motor. I'm not a 4.9l expert.
the 80’s cast pumps with cast impellers would only work in one direction. These cast pumps with stamped steel impellers are straight blades, meaning regardless of rotation, the perform the same function.
of course I will double verify this tomorrow when I inspect the old pump with counter threads on the fan clutch meaning clockwise rotation for fan.
the 80’s cast pumps with cast impellers would only work in one direction. These cast pumps with stamped steel impellers are straight blades, meaning regardless of rotation, the perform the same function.
of course I will double verify this tomorrow when I inspect the old pump with counter threads on the fan clutch meaning clockwise rotation for fan.
if you dont mind getting a 1995 or 1996 water pump and pulley, you can just use one of those fan clutches and stock fan, which crosses to chevy 350 vortec era, same as 4.3l v6 vortec, which are plastic and more blades.
i only say this because I know in 92 and possibly 95 they had changed things for the pump and clutch pilot, maybe the fan spacing (for mounting to the clutch) as well
There was a Change, The 86-89/90 have a fan clutch nut 1-7/16”, the 91-94 has a much larger nut like 1-9/16” or so. But the blades worked and I’m happy.
with less that an inch clearance I have no fears of improper cooling.
Okay aurora, the small illustration on the left is how I have it set up.
the water pump is turning counter clockwise because the water pump fan clutch threads are regular right handed threads.
the water pump clutch fan fan I pulled from the 91 4.9 at pick and pull was also counter clockwise, which is why I bought it because the blade I found in the back of this truck was opposite. Meaning turning counter it pushed air bro the radiator away from the engine.
this alternative r came mounted in the engine bay, why does it need to be a different alternator?
Can you tell me what the proper direction mine should be turning, and more importantly why it should be turning the opposite direction if that is your belief?
I need to know why very soon as I need to get the truck broken in and moved tomorrow morning as I have client cars to work on.
Your setup is not using the one in the left side, you have an AC compressor
But looking again, it looks like the directions may be okay, but your wrap on the pulleys is still garbage. its gonna make noise and start pilling in the pulleys in no time. also make sure the tensioner, when belt installed, has travel too
There was a Change, The 86-89/90 have a fan clutch nut 1-7/16”, the 91-94 has a much larger nut like 1-9/16” or so. But the blades worked and I’m happy.
with less that an inch clearance I have no fears of improper cooling.
I have fears of your engines normal movement on its mounts relative to your radiator
Your setup is not using the one in the left side, you have an AC compressor
But looking again, it looks like the directions may be okay, but your wrap on the pulleys is still garbage. its gonna make noise and start pilling in the pulleys in no time. also make sure the tensioner, when belt installed, has travel too
the tensioner is mid way in its travel. The AC pulley is Only a pulley, it will not be utilized. And the routing is fine I believe.
if I was using the AC, the other drawing with a clockwise fan would be necessary for proper pulley grip. At this point it is a simple idler pulley as I have no smog air pump.
brand new mounts. And I’ve ran closer tolerances in different inline 6 ford’s like in my Falconaround’s 200.
and the tranny mount is new also, so I am not afraid on fire aft movement.
thats good. This is 2wd then?
Also bypassing the AC will give you more wrap on the PS and the crank pulley. Then using a bypass pulley and a 3g alt large case will give you good wraps elsewhere and allow you to use good things all around
Nope it’s 4x4 five speed. The ps pulley gas superb grip.
I mean, I would just do a saginaw swap and then you wouldnt have to worry about it start randomly dragging crap loads of HP down to work inconsistently as is the way of the CII if the leaks or the heat dont kill it first
Brand new pump. Not converting anything. I got my 86 ranger for any off-roading I want to do. I built this as my work truck to haul my 22’ car trailer. It’s just too taxing on my ranger brakes and clutch. The last two hauls with my ranger was this 89, and my 55 gmc 3/4 ton. Slow starts and very long stops when hauling 7000+ lbs with my little 2.9 ranger.
Brand new pump. Not converting anything. I got my 86 ranger for any off-roading I want to do. I built this as my work truck to haul my 22’ car trailer. It’s just too taxing on my ranger brakes and clutch. The last two hauls with my ranger was this 89, and my 55 gmc 3/4 ton. Slow starts and very long stops when hauling 7000+ lbs with my little 2.9 ranger.
my dad pulled his skidsteer and big trailer(a fairly large john deere skidsteer too) with a 91 4.0
only went other side of the village, but it bent the bumper LOL
That’s nice! My ranger has a class 3 hitch, so my bumper is save, but hauling 7000 plus pounds puts about a years worth of wear on the clutch and brakes every time I stop or take off on a hill. Had to start in low range on a steep bridge in Oregon just to get it rolling twice in heavy traffic!
thank god for push button four wheel transfer case!
my little 2.9 liter deserves a rest, that’s bc why I bought this 89
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