Viscous Fan Clutch - alternate part
- Thread starter DiscoJen
- Start date
For my Canadian friends,
I have a part number for you (after much searching). Out west most smaller parts places seem to use Uniselect as their supplier... I got a Cooling Depot part #11136973 fan clutch for a 1998 Chev 1500 4.3l V6 and it work just like what the Imperial sounds like. It cost me about $45 and works a treat... and I didn't have to ship anything across the border. It says it's made in the USA, so I expect it will last for a while...
As an aside, my original was wobbling a bit, but "behaved" properly when stopped (not freewheeling, not seized). It wrote off my waterpump 400 miles from home... wished I had checked it BEFORE I left on the trip!
Chris
I have a part number for you (after much searching). Out west most smaller parts places seem to use Uniselect as their supplier... I got a Cooling Depot part #11136973 fan clutch for a 1998 Chev 1500 4.3l V6 and it work just like what the Imperial sounds like. It cost me about $45 and works a treat... and I didn't have to ship anything across the border. It says it's made in the USA, so I expect it will last for a while...
As an aside, my original was wobbling a bit, but "behaved" properly when stopped (not freewheeling, not seized). It wrote off my waterpump 400 miles from home... wished I had checked it BEFORE I left on the trip!
Chris
Anyone found anything else for a vbelt truck, you lucky fuckers with your serpentine front covers
Friendly Caveat: Re: Viscous Fan Clutch - alternate part
Put the Imperial 58 on my 94D1 to save a few dollars. It tore off the front of the water pump, tore a gash in the hood, demolished the fan cowl, and, what's worse, ruined the radiator.
Mass, moment arm...the stock clutch is quite light, and the water pump bearing, in an aluminum casing, is sized to fit. No doubt the pump had some miles and wear but in retrospect my overheating was caused, primarily, by ignition timing that didn't allow for the change in gasoline over the last sixteen years.
Perhaps distributor-less Discos obviate the heat-generating spark knock. Also the temperature fan switch had gone bad.
A good mechanic learns something new every day.
Hope the rest who took the advice on this thread had better luck.
Put the Imperial 58 on my 94D1 to save a few dollars. It tore off the front of the water pump, tore a gash in the hood, demolished the fan cowl, and, what's worse, ruined the radiator.
Mass, moment arm...the stock clutch is quite light, and the water pump bearing, in an aluminum casing, is sized to fit. No doubt the pump had some miles and wear but in retrospect my overheating was caused, primarily, by ignition timing that didn't allow for the change in gasoline over the last sixteen years.
Perhaps distributor-less Discos obviate the heat-generating spark knock. Also the temperature fan switch had gone bad.
A good mechanic learns something new every day.
Hope the rest who took the advice on this thread had better luck.
ok - so the consensus is to go with the light duty clutch? my 95 d1 is hotter than a tijuana whore right now. damn sc weather.
Damn what an old thread...
After three weeks of having a Chevy fan clutch in my D1, I got rid of it in favor of stock unit.
Whoever wants the Chevy unit - you'll be better off taking a failed LR clutch, and spot-welding or epoxying the nut to the spinner.
After three weeks of having a Chevy fan clutch in my D1, I got rid of it in favor of stock unit.
Whoever wants the Chevy unit - you'll be better off taking a failed LR clutch, and spot-welding or epoxying the nut to the spinner.
ptschram
Well-known member
p m said:
Wow! I'm still running the Chevy part on my DI, at least, well, I replaced it while I still had a day job, that's been almost nine years.
I like my trucks quiet... and I'm almost positive I've picked up about 0.7mpg in town when I ditched the Chevy clutch.
That said - a Hayden 2991 is sitting on my workbench, but it looks like a P38A/D2 clutch, and feels even stiffer. I'll give it a shot, but if it proves to be as stiff as a Chevy unit, it'll go to the emergency replacement parts box.
That said - a Hayden 2991 is sitting on my workbench, but it looks like a P38A/D2 clutch, and feels even stiffer. I'll give it a shot, but if it proves to be as stiff as a Chevy unit, it'll go to the emergency replacement parts box.
B
bguetter
Guest
ptschram
Well-known member
bguetter said:
If you have the integral fan/clutch and want to retain OE appearance and operation, you can go with the OE. If you don't mind either changing to the earlier fan style, or obtaining a replacement fan, you can decide to go with the GM alternative.
I have an aftermarket, OE style for the P38/DII in stock.
p m said:
Yep, shes a stiffy.
the Hayden is loud on start up (cold engine) and still after about 100 yds. (start and go). after that all is good. i can't tell any difference in wind noise (after the initial spin up) between the two while moving with the windows up or down.
with a warm engine...... i can't hear a difference. but it doesn't help that i'm prolly half def. either, too many big BOOBS and bangs from years in the Army. BOOMS dammit, i meant BOOMS.
One mate here bored the alu chamber from the fan clutch unit, inside one of the fixing screw holes.
He drained some quantity from this silicon compound, and refilled it with more quantity.
The bore was closed by replacing the mounting screw. He cleaned the bimetal spiral (thermostatic valvle sensor) and now the mounted fan seems to work properly.
In our market it seems that older toyotas have serviceable fan clutches, so this silicon compound seems to be available as spare part.
Did anyone try to repair it in a similar way?
Regards
He drained some quantity from this silicon compound, and refilled it with more quantity.
The bore was closed by replacing the mounting screw. He cleaned the bimetal spiral (thermostatic valvle sensor) and now the mounted fan seems to work properly.
In our market it seems that older toyotas have serviceable fan clutches, so this silicon compound seems to be available as spare part.
Did anyone try to repair it in a similar way?
Regards
For the DII is the Hayden 2991 or the Torqflo the fan clutch of choice? My used OEM is not making the grade. While driving the temp is great. When I come to a stop and idle for a minute or two, the temp occasionally starts to climb. If I increase the rpm to about 2500, the temp drops. Thanks Phil
Last edited:
ptschram
Well-known member
Re: Friendly Caveat: Re: Viscous Fan Clutch - alternate part
1.2 kilos is quite light?
I weighed one yesterday and was surprised to find it had so much mass.
Will_Jones said:
1.2 kilos is quite light?
I weighed one yesterday and was surprised to find it had so much mass.
FYI: My truck was getting too hot when car shopping (running to keep the kids cool while I looked) but fine once I was moving so I decided to get the torqflo. I brought it home, took it out of the box, and stamped across the front was MADE IN CHINA. I took it back and went to Napa and got one made in the USA. I figure it will be worth the extra $20.
Just thought I would give a heads up as I don't want cheap Chinese parts on my truck and I'm sure many of you are the same way.
Just thought I would give a heads up as I don't want cheap Chinese parts on my truck and I'm sure many of you are the same way.
Levi said:
Hmmm, just picked up a Torqflo from az about a month ago and stamped bigger than shit on the box it said made in germany. Also had the LR part number on the back of it which suprised me. Guess I lucked out not getting the china part!
