So, what year of CV water pump do you think would be a good candidate? Maybe an 87 like this one? MasterPro Water Pump 58-225 - Water Pump | O'Reilly Auto Parts

 

You can not use a cv water pump they are standard rotation. You have a serpentine belt that needs a reverse rotation pump.

 

First off a picture of the front of the timing cover would help a bit, second are you running a gasket between the water pump plate and the timing cover (you need one there if your not) and third you can run a standard rotation water pump with a serpentine belt if the belt is driving the sheave the right direction. Most reverse rotation pumps run a smooth sheave (if I remember correctly) and the standard rotation run the ribbed sheave, but I could be wrong. I would have to see how your belts spin the WP to determine which rotation in spins.

 

Additionally for example the 1990 CV runs a serpentine belt on a 302 so Last Chance 53(I wish you guys would list a name so we can address you instead of the user name, just mine and others gripe) your theory don't make sense. You say CV has standard rotation WP but you also say with a serpentine it has to be a reverse rotation, not true.

 

Dave, The 1990 cv uses a multi rib belt but its not a true serpentine belt and the water pump runs in the standard rotation. He is running a true serpentine system and needs a reverse rotation pump. I am running the 1991 cv pulleys on my 331 motor. Larry

 

I appreciate everybody's input. I've come to a few conclusions. First, my water pump and timing cover are compatible as far as sealing leaks is concerned. Second, I may have coolant leaking between the block and timing cover and the water pump might have been sealed. Part of me wants to pull the timing cover and replace that gasket too, but due to either having to replace a good oil pan gasket or cutting and pasting two new pan corners in , I'm reluctant to pulling the TC at this time. Yes, I had a gasket and black RTV between the TC and WP. Assuming the crank rotates clockwise (which I'm pretty sure it does) the WP pulley rotates counter-clockwise. The truck has never come close to over-heating, so whether it's a reverse direction pump or not seems irrelevant as apparently the impeller is spinning in the correct direction. So, it looks like my choices are between pulling the timing cover and resealing everything or slapping the WP back together with new gaskets and RTV.

 

Sorry if I confused things, I was only trying to help. I hope it all works well for you. Larry

 

1995 F150 with either a 5.8 liter or 5.0 liter uses a reverse rotation water pump and full serpentine belt setup. Worse case, pick one up if it doesn't seem like it will fit, return it. If you decide to pull the timing cover, just be aware of the two locator dowels on the bottom two bolts that go into the block. They locate the timing cover so the balancer is centered within the timing cover seal. Don't want those falling into the oil pan. Older models, 1960's and early 1970's didn't have the dowels and to locate the timing cover you had to install the balancer before tightening any timing cover bolts.

 

All input is appreciated. I asked for input as I think I'm missing something somebody else might catch.

 

Larry,
Sorry, I now understand what you mean with the drive belt being standard vs. reverse rotation . I was just seeing ribbed belt but we still need to know how he runs his belt because he could be spinning the pump standard rotation depending on his belt routing.

 

Well, upon further inspection, I think you're correct on this one. Unfortunately, I believe I need the reverse direction (counterclockwise pump?) and the pulley won't mount to the Crown Vic pump. So, I have a timing cover on the way that is "clocked" for the reverse direction. When the cover gets here, I'll slap it back together and pray for no leaks.

 

The water pump rotates in the opposite direction of the crankshaft.

 

It looks like Last Chance was correct. I now have the"reverse direction" timing cover on the truck along with the reverse direction water pump and everything seems to be buttoned down and dry. It'll be nice not to see wet spots on the floor anymore.