well I have an issue! I wont go into all details, but lets just say I cant find anyone to help!. Not even the ford service department. Just a little background. I have a 1985 302ci engine. I was putting in a march pulley system but couldnt get the holes on the march water pump pulley to match up with stock pulley( the bolt pattern on the stock pulley was larger than the March pulley supplied) . I went to 3 places to find right WP and was told that need a standard rotation pump. So said what the heck and looked into a edlebrock waterpump with right pulley pattern. The question came up whether or not the current pulley is reverse or standard. (please look at pic in my gallery. Its not completly clear but you can tell the belt set up and see which way pulley and belt(serpintine) is set up. Im going to make some general comments and tell me if im off base.
1- the harmonic dampener as facing engine from front rotates in a clock wise motion.
2- the belt wraps around HD in clockwise direction and then goes to WP andforces it to rotate in counterclockwise direction. This is forcing blades of fan to rotate in correct rotation (i.e forces wind towards engine)
3- but the blades (or vanes) in stock WP are cupped in the clockwise direction. so appears that water is not pushed correctly. By the way the inlet from bottom of radiator is from driver side
4- I had several people tell me it was a reverse rotation and some tell me standard. BUT in new march pulley system its set up to rotate WP and HD in same clockwise direction. This will cause the stock WP to push the water towards outlet but cause fan to rotate in wrong direction

Is this thoroughly confusing yet? Can you help me figure this out? I have $800 in pulley system and now $300 in WP (polished) and not sure if doing right!! The guys at march were great. They said I really need to be sure Im doing right or will have a real mess.

So ultimately, in a 1985 302, with a single belt, and with inlet in driver side is it supposed to be a reverse or standard?By the way...I had a huge amount of rust come out of radiator when I removed...I was just wondering if I was getting proper circulation. Who ever had before me had the outlets go to a fitting that was in between oil filter and block..I assume to cool oil. Could this signify a temp problem..

I really hope you guys can help. IF not over email, I would love to talk to someone over phone to help! thanks

 

Do you know what the engine came out of? If the engine originally only had one belt, then it would be a reverse rotation. I know the large cars such as a Crown Vic or TownCar used a 2 belt system. The trucks still had V belts and Mustangs used a single belt drive.

EDIT: The set-up you have appears to be off of a Mark VII. It is a reverse rotation pump. Go by the parts store and have them pull a pump for a 88 5.0 Mustang. If the impeller is angled like yours, then your ok. If not, then it will not pump water correctly. Does your timing cover have the opening for the mechanical fuel pump or is it solid with no hole? If solid, then it is correct.

 

is the factory pump pully groved or smooth?

 

the pic shows a reverse rotation pump and fan

 

If it's serpentine drive, it's reverse rotation because the pump turns opposite of the crank.

 

well thanks for info. I have more detail and answers. Check out the new picture I created on gallery that shows in more detail set up

1- the pully for water pump is smooth
2- there is a hollowed out hole in timing chain cover doesnt go anywhere but has two holes for bolting something!

comments....take a look as i suggest on my drawing. you will notice that the blades in current waterpump are pointed towards clockwise direction but belt is rotating in wrong direction! Im assuming (and correct me if im wrong) that I have a standard pump but have reverse rotation! if so, no wonder he added a oil cooler at filter and there was a ton of deposits in bottom of radiator.

If that is correct...Im assuming that I can use a standard rotation water pump but need to change pulley system to go in standard direction? THe march system i purchased would do that....so am i good?

 

the whole set up looks ok to me whats the problem with it.

cooling fan is ccw

 

shoudnt the vanes of water pump be going in the other direction? that is, the water hits the cup of the vain. the inlet is in lower right and outlet top left

 

Look at the direction of the flow channels in the water pump and see how they line up with the impeller rotation direction. Someone posted a link a while back to what each pump looked like, but I don't remember the link or where it was posted. The vanes I've seen are flat and at an angle, so I'm not sure about which way they should be cupped. Regardless if they are flat or cupped, the impeller should force water outward from the shaft. As hemieater said above, reverse rotation pumps turn counter clockwise looking at the front of the engine.

for question 2, the hole is probably for a mechanical fuel pump.

 

remove the thremostat and watch the water in the radiator...........just run it a little low so you can see which way it's moving .......might have to rev it a little.

 

I would not get hung up on which way the vanes are pointing and waterflow direction.

If your waterpump belt wraps around the waterpump pulley in the same fashion that it does on the damper pulley, then it will turn the same direction as the damper pulley, so you need a standard rotation waterpump.

If your new belt setup, no matter if it's Ford, March, etc. wraps around the damper pulley, but runs the waterpump on the backside of the same belt, then the waterpump will turn the opposite direction of the damper pulley. So you need a reverse flow pump.