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71 Dart fan clutch
https://slantsix.org/forum/viewtopic.php?t=60156
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Author:  moparlewellen [ Mon Sep 12, 2016 3:51 pm ]
Post subject:  71 Dart fan clutch

I've got a 1971 Dart with a somewhat built slant. I'm just wondering if anyone knows of a good fan clutch to use on these. My engines running pretty cool and I want to free up some mpgs for the interstate. It has a/c and the 5 blade factory fan on it. All the clutches I've come across are too thick and won't fit between the water pump and radiator.

Author:  Doctor Dodge [ Tue Sep 13, 2016 5:42 am ]
Post subject: 

I been able to install the thinner factory Chrysler early fan clutches into A Body vehicles...
You do have to remove the current mechanical fan spacer.

But these days, I find it easier to install an electric fan. (the wrecking yards are full of good used electric fans, for cheap)
DD

Author:  moparlewellen [ Tue Sep 13, 2016 7:35 am ]
Post subject: 

I thought about doing electric back use I have a fan off a truck from work I picked up. The only thing is where does the temperature probe go for the fan controller? I do want to keep my stock gauge.

Author:  Reed [ Tue Sep 13, 2016 7:47 am ]
Post subject: 

There are various options for where the temp probe can go. Some aftermarket kits have a probe that sticks between the fins in a radiator. I have seen people drill a hole on the thermostat housing and epoxy/weld a bung for the temp sensor there. If you have a later head with multiple sensor ports yu can use one of those. I have seen people put the temnp sensor in the upper radiator hose using parts from the junkyard,

SlantSixDan actually found a factory clutch fan from a Toyota, I believe, that will fit the slant six water pump, has the correct engine rotation, and will fit in an A body. I bought one from him and it is hanging on my garage wall waiting to be installed in my brother's 74 Duster. I don't recall the original application.

However, I agree with Doctor Dodge that these days the easiest route is to run an electric fan. You may want to upgrade your alternator and charging circuit, though, because some electric fans can draw high amps when starting up.

Author:  SlantSixDan [ Tue Sep 13, 2016 8:02 am ]
Post subject: 

See here

Author:  Reed [ Tue Sep 13, 2016 8:10 am ]
Post subject: 

Excellent article, and that Toyota fan looks VERY familiar! :lol:

Author:  moparlewellen [ Tue Sep 13, 2016 11:13 am ]
Post subject: 

So it sounds like electric will be easiest, especially since I already have the fan. I do have a 3/8 pipethreaded hole on the top of my radiator. I'm thinking that will be a good spot for a probe.

And I already have a 100 amp alternator with 4 gauge wiring to the battery.

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