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Old 04-30-2012, 05:12 PM
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Water pump help

Hey guys, has anyone run in to water pumper pulley aliment issues with the 5.0 fuel injected motor swap?? I need to find a 5.5" reverse rotation pump for my swap. The stock 5.0 pump is 5.75" and the old standard rotation pump is 5.5" but is "standard rotation. Any help would be greatly appreciated. Thanks Steve
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Old 04-30-2012, 06:01 PM
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If you are using the 4 bolt balancer it should line up with the stock 5.0l pump. the early 28oz 3 bolt balancers use the shorter water pump. CRF racing and March make conversion pullies.
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Old 05-01-2012, 07:59 AM
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I have the CRF pulleys, my problem lies in that I am using an early timing chain cover with a dip stick in it. The early water pumps are standard rotation with a 5.5" base to flange measurement, and the later model reverse rotation pumps have a 5.75" base to flange measurement.
I have 2 choices I think.
1: space out the crank pulley .5" as well as the Alt. and P/S.
2: switch back to the late model timing cover and figure out a way to get a dipstick mounted.
The reason for the timing cover swap is the late model injected motor had a rear sump type pan with a block mount dip stick. Switching to the front sump pan rendered the block dip stick useless. I guess I could put the late model timing cover back on and go without a dipstick? I would just have to change the oil often to make sure it is full??
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Old 05-01-2012, 08:32 AM
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Quote:
Originally Posted by doghows View Post
2: switch back to the late model timing cover and figure out a way to get a dipstick mounted.
I think you'll find that the timing covers are the same thickness.

Another thought is to find a timing cover and pump and all the pulleys from a V8 Explorer. They had a super low profile which would give you pleny of room for an electric fan.
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Old 05-01-2012, 08:49 AM
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Did the explorer have a dipstick in the cover? I have plenty of room for a fan I am just in the dilemma about dipstick access??
I found a conversion a guy did on a mustang and he drilled his late model cover for a dipstick.? I will look at mine and see if it have that same boss as his did. That would solve it all. (fingers crossed).
Thanks for the input guys, all information is good information.
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Old 05-01-2012, 08:57 AM
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I've not seen a falcon with plenty of fan space.

The Explorer cover does not have a dipstick boss. Those engines had the dipstick in the rear sump. It could be drilled.
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Old 05-01-2012, 10:00 AM
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I don't think the cover thickness varies with or without the dipstick. They put the dipstick in the front if you had a front sump pan and in the block or pan if a rear sump (fox body car). The balancer always wants to tighten to the stop (the step) on the crank, the cover has no bearing on this. The thickness variations are all on the parts external.

It's good to know the Exploder had the shortest of them all. Will be worth scouting next time in the Pick-n-Pull.

Now if I could only figure out a serpentine system for a 200-6.
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Old 05-01-2012, 10:08 AM
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I think my problem lies with the pump. The later model reverse rotation ones are 5.75" and the early standard rotation are 5.5" Amazing what a 1/4 inch means??? (insert your own nasty comment here)
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Old 05-01-2012, 10:32 AM
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There is a difference in pump length for the pre-68 and post-68 pumps. When Ford changed to the four bolt damper the pump length changed. I'm pretty sure that the reverse rotation pump is the same overall length as the post-68 pump (water inlet on drivers side).

If you have a four bolt damper and a reverse rotation pump, you should be set. You would just need the right pulleys. I would look at your pulleys if it's not lining up. You may need a spacer behind the crank pulley. Call the vendor that makes your pulley set to make sure you have the right stuff.
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Old 05-01-2012, 10:35 AM
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Quote:
Originally Posted by Luva65wagon View Post
It's good to know the Exploder had the shortest of them all. Will be worth scouting next time in the Pick-n-Pull.
The Explorer setup was also used on the 94-95 5.0 Mustang. The pump sits inside the match timing cover. There is no pump backing plate. There is no fuel pump boss and the eccentric won't fit.
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Old 05-01-2012, 10:43 AM
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Quote:
Pbrown said: The Explorer setup was also used on the 94-95 5.0 Mustang. The pump sits inside the match timing cover. There is no pump backing plate. There is no fuel pump boss and the eccentric won't fit.
That too is good to know.

When I swapped the motor from a 79 LTD station wagon (actually the entire chassis) I retained the serpentine system which had the reverse pump. So I know it went way back to the 70's.

I don't know how many water pump heights there are - but I have to believe there are more than just one on the reverse pump.

Steve - just take a drive to your parts house and have him start pulling them off the shelf. See what height variations you see.
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Old 05-01-2012, 11:03 AM
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Quote:
Originally Posted by Luva65wagon View Post
Steve - just take a drive to your parts house and have him start pulling them off the shelf. See what height variations you see.
Ahhh. Yes, torture the counter staff. I love going in there.

{STEVE} "Say there, I need a water pump"

{COUNTER GUY} "Sure... What year make and model?"

{STEVE} - Start singing a certain Johny Cash song.

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Old 05-01-2012, 11:06 AM
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There was a time, I know, you could do this. I know, I'm still old fashioned that way. Back when we had ... BOOKS.
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Old 05-01-2012, 11:08 AM
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Also, I worked 3 years as a parts guy right out of high school. We could find ANYTHING you needed. And were happy to do so. Most guys today look at you and say, "it doesn't show anything on my computer screen."
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Old 05-01-2012, 12:04 PM
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I hear you. I had them pull several off the shelf and the old years are shorter and all the later ones were longer.
I have been told to space out the crank pulley and so forth but that puts me about 3/4" away from the radiator with the fan.
I will have to stare at it some more tonight.
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