715 with 6BT cooling fan options

[79 oshkosh 2323]

I was wondering what to put on for an electric fan. There is no room for the clutch fan on the motor.. I would like to go the biggest i can go.. any suggestions, pusher or puller fans and what CFM.. Thanks

 

[MarkM]

How about a flex fan? They move a buttload of air and flatten out as the rpm goes up. I have one on a car I have and it made a huge difference compared to the old clutch fan. Just my .02 cents.

Mark

 

[79 oshkosh 2323]

How about a flex fan? They move a buttload of air and flatten out as the rpm goes up. I have one on a car I have and it made a huge difference compared to the old clutch fan. Just my .02 cents.

Mark

There is no room between the engine and radiator for the stock fan.. most people who have done this swap use a electric fan.. I didn’t do the swap i purchased it un finished..

 

[MarkM]

Have a pic of the engine bay? How close is the water pump to the radiator? Love that motor BTW. Tell us more about the swap.

Mark

 

[79 oshkosh 2323]

Have a pic of the engine bay? How close is the water pump to the radiator? Love that motor BTW. Tell us more about the swap.

Mark.

I got this project the way it is. It Already had the engine in it.. IM trying to finish it over time or swap for a converted M37 with V8. Engine but no one has been interested to trade.. . It runs very very well.. i have always favored the M37 but this came along and was hard to pass it up.

 

[MarkM]

You know from tge pics you just "Might" have enough room for a flex fan and it just bolts up to the water pump without the clutch setup. Just a thought.

Mark

 

[Barrman]

I put a 1993 6BT with the stock fan and fan clutch attached into a M715. I moved the radiator which looked just like yours forward about 1/2 inch. I notched the front valence to do this.

There was a guy on the M715 zone from your part of the country that did several 6BT conversions to different M715 trucks. He even built a twin rear axle truck. All of his had the stock fan and fan clutch as well.

Turbo diesel engines need lots and lots of air flow. I don’t think there are electric fans out there that can equal an engine driven fan. I would suggest you try and keep a belt driven fan.

 

[79 oshkosh 2323]

You know from tge pics you just "Might" have enough room for a flex fan and it just bolts up to the water pump without the clutch setup. Just a thought.

Mark

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I didn’t know the housing had bolts to bolt a fan to. I thought it was just the threaded piece for the clutch.. i will look into that. Thanks

 

[79 oshkosh 2323]

I put a 1993 6BT with the stock fan and fan clutch attached into a M715. I moved the radiator which looked just like yours forward about 1/2 inch. I notched the front valence to do this.

There was a guy on the M715 zone from your part of the country that did several 6BT conversions to different M715 trucks. He even built a twin rear axle truck. All of his had the stock fan and fan clutch as well.

Turbo diesel engines need lots and lots of air flow. I don’t think there are electric fans out there that can equal an engine driven fan. I would suggest you try and keep a belt driven fan.

I would like to get a clutch fan on it.. thank you

 

[79 oshkosh 2323]

You know from tge pics you just "Might" have enough room for a flex fan and it just bolts up to the water pump without the clutch setup. Just a thought.

Mark

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I dont know if i could enlarge the hole in the center to go over the threaded part.. i think by the time the hole is cut big enough you would be into the 4 bolt holes

 

[MarkM]

They make left hand adaptor to go from the clutch hub mount to a belt driven flex fan setup. It installs on the threads.

Mark

 

[79 oshkosh 2323]

They make left hand adaptor to go from the clutch hub mount to a belt driven flex fan setup. It installs on the threads.

Mark

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wow.. i bet that would work. Wonder where i would get one..that would defenitly work.. thank all for the responses

 

[79 oshkosh 2323]

They make left hand adaptor to go from the clutch hub mount to a belt driven flex fan setup. It installs on the threads.

Mark

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Found them .. summet racing have them. spacers available as well.. thanks guys.. this is worth a shot. Short money as well