[gto19]

Mgarblik

Good info !

If I read your posts correctly you say to move the spring clockwise which would tighten the coil up but when I look at this picture provided in the chevelle link you can see they actually loosened the coil counterclockwise. So what’s the correct way to move it ?

[mgarblik]

Originally Posted by gto19

Mgarblik

Good info !

If I read your posts correctly you say to move the spring clockwise which would tighten the coil up but when I look at this picture provided in the chevelle link you can see they actually loosened the coil counterclockwise. So what’s the correct way to move it ?

Ha, now I don't know. I may have moved it the wrong way but it seemed to work better? I have to remove the fan, clutch and shroud tomorrow to send it out for powdercoat. I will play with the spring with a hair dryer on the bench and see what the heck I actually did. Sorry for the confusion.

[RocktimusPryme]

Originally Posted by gto19

Mgarblik

Good info !

If I read your posts correctly you say to move the spring clockwise which would tighten the coil up but when I look at this picture provided in the chevelle link you can see they actually loosened the coil counterclockwise. So what’s the correct way to move it ?

That was kinda my question too. The videos I posted both moved it to the left (CC) as well. But they may have been reverse spinning water pumps?

Im still slightly confused. I might take a picture later and draw on it just to clear up the confusion.

I think I might be afflicted by exactly what you guys are talking about. The fan coming fully on too late. My car sits dead on the 180 thermostat when moving, but climbs some when idling. So I would like to give this mod a shot, but Im still not sure where I should put the outter tang of the spring.

Im a visual person lol. Trying to visualize it in my head Im struggling with.

[RocktimusPryme]

Okay lets look at an illustration to try and clear this up.

So Mick this is how you are saying it should go right? Move the spring to tighten it? And let the outer tang just rest against the side like that.

[gto19]

Originally Posted by RocktimusPryme

Okay lets look at an illustration to try and clear this up.

So Mick this is how you are saying it should go right? Move the spring to tighten it? And let the outer tang just rest against the side like that.

No
Go the other way . You wanna loosen the spring . What he was saying is bend the outer tang clockwise and that will force the coil and center pin counterclockwise. On your fan clutch picture bending the tang really won’t do anything since you don’t have a slot that it rests in .

I provided a picture of my original fan clutch without the modification and a pic of a fan clutch with the modification

[gto19]

Actually looking at yours more close up you probably could bend the tang clockwise and leave it in the hole and it would force the coil counterclockwise

[RocktimusPryme]

Originally Posted by gto19

Actually looking at yours more close up you probably could bend the tang clockwise and leave it in the hole and it would force the coil counterclockwise

Is there room to bend the tang. It doesnt seem like there is much room for error with the 2797 pictured.

That said I think I understand now. Bend the tang to the right which would loosen the spring slightly. Bending the tang right is the same as moving it a slot left.

Could it just be moved out of the slot to the left and rest against the circular knob? Even maybe soldered to the side so it would stay put.

[lust4speed]

Originally Posted by RocktimusPryme

Is there room to bend the tang. It doesn't seem like there is much room for error with the 2797 pictured.

That said I think I understand now. Bend the tang to the right which would loosen the spring slightly. Bending the tang right is the same as moving it a slot left.

Could it just be moved out of the slot to the left and rest against the circular knob? Even maybe soldered to the side so it would stay put.

That is correct. Removing the spring from its current position and moving it to the left (say 12:00 to 11:00) is what you want to do. Give that a try and if the fan stays on too much then take my riskier approach and bend the end of the tang. I've heard guys succeed with moving it out of the slot and leaving it loose, but never had an update whether the pin might migrate farther around since it is now free floating.

What can sometimes happen is you move the tang too far and it lets the fan stay on under 180° and your thermostat is a little lazy and keeps temps at 185° -- and the fan will always be on trying to fight the thermostat.

I really didn't want to post this ugly photo but it does show the bent tang that allows the center pin to be slightly more counter-clockwise. In this particular case the slots on the pin were originally in a 9:00/3:00 location and you can see a very slight pitch on the pin now.

I'm also wondering if a slot might not be cut with a Dremel tool about half way between the stock slot and the outside of the casting?

[michaelfind]

Originally Posted by RocktimusPryme

Okay lets look at an illustration to try and clear this up.

So Mick this is how you are saying it should go right? Move the spring to tighten it? And let the outer tang just rest against the side like that.

I realize this is an old question from an old thread and y'all already figured out that the adjustment needs to go counter clockwise. I have been experimenting with my clutch and I think I found what works best for my set up.

I tried moving the tang to the left of the circle but that resulted in the clutch not resetting when cool and basically staying engaged all the time.
I tried to bend a slight tip of the end to stay in the slot but there is not enough material there to make that work.
Also, Super glue did not hold.

I ultimately straightened the end of the spring so that it is held (barely but enough) in the bottom of the original slot but also pushes the coil spring CCW to give me a much cooler temp at idle. I hope this is helpful for others.