• Welcome to ClassicBroncos! - You are currently viewing the forums as a GUEST. To take advantage of all the site features, please take a moment to register. It's fast, simple and absolutely free. So please join our community today!
    If you have problems registering or can't log into your account, please contact Admin.

Shorter Water Pump Help Needed!

collinbrewer

Sr. Member
Joined
Jan 23, 2007
Messages
529
Loc.
Austin
I "solved" my fan to radiator clearance issues with two 12" electric fans, but I'm running a little warmer than I'd like and I'm not real pleased with the setup.

So I know that the explorer front dress is kind of the coup de gras of fixing fan to radiator clearance in our Broncos, but I'm trying to avoid that as much as possible because I already have a brand new saginaw power steering pump, new 130amp alternator and VA a/c setup for the '91 Mustang front dress and I'm not too keen on having to rework all of that. Though I will if that's what it comes to.

I've read where others suggested a shorter water pump without many more details so my question is, does anybody know exactly what it takes to put in a shorter water pump? I assume I'll need the water pump, maybe a different timing chain cover and a different pulley to keep the belt alignment correct?

Help me sort this crap out, ready to be able to depend on my Bronco a little more.

Thanks in advance!
 

pa69broncoguy

Sr. Member
Joined
Sep 6, 2011
Messages
566
a pusher from a tracker/suzuki suv will fit nicely if you remove it from te plastic mount and make a small bracket to attach to the rad core support. this is what i did because i didnt think the puller was enough. the puller is thin so that reduces the cfm
 

Crush

Contributor
Bronco Guru
Joined
May 30, 2007
Messages
3,463
Loc.
Greenbottom, WV
Your front dress dictates the fan clearance. If u put a shorter water pump on then the belt pullies won't line up. So I guess you ate sort of stuck with what u have
 
OP
OP
collinbrewer

collinbrewer

Sr. Member
Joined
Jan 23, 2007
Messages
529
Loc.
Austin
Ugh... really don't want to get into making pulleys...

On the 5.0 water pump, the shaft is the furthest thing sticking out. Does nobody make an offset pulley to make up for the alignment change by switching to a shorter water pump?
 
OP
OP
collinbrewer

collinbrewer

Sr. Member
Joined
Jan 23, 2007
Messages
529
Loc.
Austin
Ok so I picked up the coveted Hayden 2765 and Hayden 3618 and did a quick mock and the clutch *just* fits... as in, exactly touches the radiator fins... so, I at least have options... thinner radiator, core support massaging, etc. However, that combo is for standard rotation water pumps and they don't make a reverse rotation clutch.

So my question now is, does anybody know of a clutch that is the same depth as the Hayden 2765 but reverse rotation?
 
OP
OP
collinbrewer

collinbrewer

Sr. Member
Joined
Jan 23, 2007
Messages
529
Loc.
Austin
That's definitely on the list of possibilities, but I'm trying to resolve this in the least convoluted and financially responsible way possible.
 

baddad457

Sr. Member
Joined
Aug 24, 2011
Messages
560
Ok so I picked up the coveted Hayden 2765 and Hayden 3618 and did a quick mock and the clutch *just* fits... as in, exactly touches the radiator fins... so, I at least have options... thinner radiator, core support massaging, etc. However, that combo is for standard rotation water pumps and they don't make a reverse rotation clutch.

So my question now is, does anybody know of a clutch that is the same depth as the Hayden 2765 but reverse rotation?

On a reverse rotation FEAD the waterpump is the only thing that's reversed. The engine does not turn backwards, unless you've got an engine out of a marine application, and then you'd have to learn to drive in reverse as all the forward gears would be "reverse" ;D
 
Top