Well, pretty much what the title says.
I have a '93 Ranger 4.0L-OHV, 5spd, 4x4. The crank pulley is shot. It hasn't separated yet, but it is dry rotted and cracked, so it is going to be changed tomorrow.
I have a brand new Dorman stock-type balancer, which I actually bought for this truck a while back, knowing it would need to be changed.
I also have a brand new ASP underdrive crank pulley, that I bought for my '99 Explorer, which hasn't moved or ran in about 5 years. I eventually plan on getting the Explorer running again. However, I also plan on putting an M90 blower on it, via the RP Caster kit. So, then I wouldn't be able to use the U/D pulley anyway. Of course, it could be several more years before I even get it running at all.
On the other hand, I currently drive the Ranger on an almost daily basis. I use it as a work truck, and I put a lot of miles on it. So, any improvement in MPG would be nice, plus the increased power would be good too.
The thing is, while I understand the idea behind the u/d pulley, and how it "helps", I don't really see where I would gain anything on the Ranger. It doesn't have a/c (didn't come with it), I don't know if I really want less p/s "boost" at low speeds ( I spend a lot of time in traffic, as well as maneuvering in tight spots), and I'm also putting in an electric fan tomorrow, so I don't think I really want to slow down the alternator. So, if I then O/D the alternator w/ a smaller pulley, what am I really gaining by "using up" a $300 pulley (roughly)?
Am I wrong? Will I still see a noticeable benefit from installing the u/d crank pulley? What about if I then speed the alt back up some, with a smaller alt. pulley? Will that cancel out any small gains I might have made?
On that note, I can't really afford an ASP alternator pulley, nor do I have the time to get one. I have a couple of later model Ford Alt. pulleys I pulled from junk alternators. They are smaller diameter, and the shaft appears to be the same inside diameter. The only thing is, they are 8-rib pulleys, whereas the Ranger uses a 6-rib belt. It appears that the first 6 ribs of these other pulleys line up with my stock pulley. The belt appears to sit in the grooves correctly. Would it be ok to use an 8 rib pulley, with a 6-rib belt? My gut answer is that it looks like it would be fine, but I though I'd get some additional opinions.
I have a '93 Ranger 4.0L-OHV, 5spd, 4x4. The crank pulley is shot. It hasn't separated yet, but it is dry rotted and cracked, so it is going to be changed tomorrow.
I have a brand new Dorman stock-type balancer, which I actually bought for this truck a while back, knowing it would need to be changed.
I also have a brand new ASP underdrive crank pulley, that I bought for my '99 Explorer, which hasn't moved or ran in about 5 years. I eventually plan on getting the Explorer running again. However, I also plan on putting an M90 blower on it, via the RP Caster kit. So, then I wouldn't be able to use the U/D pulley anyway. Of course, it could be several more years before I even get it running at all.
On the other hand, I currently drive the Ranger on an almost daily basis. I use it as a work truck, and I put a lot of miles on it. So, any improvement in MPG would be nice, plus the increased power would be good too.
The thing is, while I understand the idea behind the u/d pulley, and how it "helps", I don't really see where I would gain anything on the Ranger. It doesn't have a/c (didn't come with it), I don't know if I really want less p/s "boost" at low speeds ( I spend a lot of time in traffic, as well as maneuvering in tight spots), and I'm also putting in an electric fan tomorrow, so I don't think I really want to slow down the alternator. So, if I then O/D the alternator w/ a smaller pulley, what am I really gaining by "using up" a $300 pulley (roughly)?
Am I wrong? Will I still see a noticeable benefit from installing the u/d crank pulley? What about if I then speed the alt back up some, with a smaller alt. pulley? Will that cancel out any small gains I might have made?
On that note, I can't really afford an ASP alternator pulley, nor do I have the time to get one. I have a couple of later model Ford Alt. pulleys I pulled from junk alternators. They are smaller diameter, and the shaft appears to be the same inside diameter. The only thing is, they are 8-rib pulleys, whereas the Ranger uses a 6-rib belt. It appears that the first 6 ribs of these other pulleys line up with my stock pulley. The belt appears to sit in the grooves correctly. Would it be ok to use an 8 rib pulley, with a 6-rib belt? My gut answer is that it looks like it would be fine, but I though I'd get some additional opinions.