Nylon cam gear years

[77Dmax]

Please post an update as to how well the clutch functions along with a part number. I've replaced several before and usually they don't disengage.

 

[ASPEC]

Please post an update as to how well the clutch functions along with a part number. I've replaced several before and usually they don't disengage.

Hayden 2797 severe duty. I will post an update as soon as it has enough in service time.

 

[ASPEC]

I've replaced several before and usually they don't disengage.

Make sure when using a heavy duty or severe duty fan clutch that your fan is compatible. If your fan is has less than a 3" blade or not enough pitch it will not produce enough drag to disengage the clutch and may not pull enough air to cool the clutch.

 

[bucket]

Make sure when using a heavy duty or severe duty fan clutch that your fan is compatible. If your fan is has less than a 3" blade or not enough pitch it will not produce enough drag to disengage the clutch and may not pull enough air to cool the clutch.

Well dang, that's something that I have not ever considered.

How much pitch would you say is needed for a "severe duty" type clutch? Generally speaking, of course.

 

[Goldie Driver]

Well dang, that's something that I have not ever considered.

How much pitch would you say is needed for a "severe duty" type clutch? Generally speaking, of course.

Stumbled across this post the other day. Can't tell you the pitch but it may help you ID the fan.

https://www.airforums.com/forums/f310/radiator-fan-clutch-woes-155571.html#post1866681

Scroll up for the full thread.