Water pump rotation

[CraKel]

79' 302 w original water pump.. Goin from vbelts to serpentine.. Can I keep the same pump or is it spinning the wrong way? Or does it matter. I already sealed the back of the pump up and im pretty sure the fan blades were angled so the water can only spin one way to reach the engine ya?

 

[baddad457]

If your 79 302 had V belts, it's a std rotation pump. Can't reverse it and still have flow. And to go to a reverse rotation pump and get optimum flow, you'll need to change the timing cover as well as the pump. Ford used a reverse pump on the std rotation timing cover on the Mustangs from 79-85, but in 86 they reversed the timing cover porting to in their words "improve the cooling" on the 86 Stangs (and pickups/vans too).

 

[85_Ranger4x4]

You can see what they changed in the ports.

Another perk with a later cover is you won't have to get a cover to potentially leak for the fuel pump.

 

[baddad457]

And that's just 6 of the small block timing covers, I've seen at least a half dozen to a dozen more variations.

 

[85_Ranger4x4]

And that's just 6 of the small block timing covers, I've seen at least a half dozen to a dozen more variations.

Yeah, mine isn't listed. (no dipstick hole, std rotation and a boss for a fuel pump that is filled in)

Gives a guy an idea what to look for though.

 

[baddad457]

Yeah, mine isn't listed. (no dipstick hole, std rotation and a boss for a fuel pump that is filled in)
:

That's the same one I'm running on my 331. 'cept it's got a dipstick hole now.

 

[CraKel]

Ok great, thx for the help.. Ill have to go check what cover I have and maybe in the end just stick with the old water pump and timing cover, and obviously the vbelts.. If I get standard v8 pullys for my 3.0L alt and p/s plus the correct brackets it should all fit and align properly wth the adjusters ya?

 

[85_Ranger4x4]

On something that new I dunno.

On mine the alternator did, I think the PS pump would have too but since mine was a howler I took a chance on the one that came with the engine and it worked fine.

 

[CraKel]

that is using the stock ranger pulleys? or v8 ones I assume ya?

 

[Teddyzee]

You can use serpentine (6 rib..) belts with a standard rotation pump, if your accessories are placed in a suitable spot. Crown Vics (etc.) in the 80's used two 6 rib belts, with a double crank pulley.

 

[85_Ranger4x4]

that is using the stock ranger pulleys? or v8 ones I assume ya?

I had to switch the alternator pulley, the 2.8 was V belt and the 302 is micro V.

Not really a serpantine setup with mine, it is the dual belt setup Teddyzee was talking about. Without AC or smog pump you only need the one belt. If I had to do it again (and I intend to redo it) I will go with a shorter setup like an Explorer or 94-95 Mustang to free up more room.

 

[CraKel]

Ya no smog or a/c w mine..just wp,crank alt and alt. Is that diagram of the 302 setup? I thought the alt was top left on the belt (pass side)?

 

[CraKel]

I guess it doesnt really matter where the accessories are as long as they line up and the brackets are secure..as TeddyZ said.

 

[Teddyzee]

The simple way for re-routing the belt is to remember that with reverse rotation pumps, the belt goes between the water pump pulley and crank pulley. You can often put the belt in a number of places with any given setup.

My current one is reverse rotation, but instead of the typical Mustang/Explorer way of having the belt across the top of the engine bay, I flipped my alt upside down, and the belt then goes over PS and ALT, but under the WP. Belt and accessories just about disappear.

 

[85_Ranger4x4]

Ya no smog or a/c w mine..just wp,crank alt and alt. Is that diagram of the 302 setup? I thought the alt was top left on the belt (pass side)?

It depends, there are a bunch of different setups. That is the 302 setup that is on my truck at this very moment.