Length of 3FE vs. 2F or F?

[n2666s]

gosh Pablo, I could not venture to attempt to measure the stock fans output in CFM..........I do know that as is listed in the SPAL USA site; this type of electric "pancake" fans is a favorite of racers and rodders; have been very happy using them over the years; and what I like most is that they are not draining HP except when needed an addition to taking a load off the water pump bearings...........think Toyota addressed this when they went to a fan clutch in the later 2F motors; just rule of thumb IMO just stick in the largest capacity "CFM" electric fan you can afford or stuff; puller would be best as it is more efficient but I only have only had space for pushers at times so have had to go that route 3 times in the past once in a vehicle with a (GENERATOR) 28 amp. max out put!!....no problems now after about 8 years........the best would be a puller/pusher combo..........if your electics can handle the amps.........I would think that the standard toyota alt. would handle it as there are not a lot of electric needs on our cruisers....you have the amp pull of the fan motors listed on the SPAL website..........I have never installed a SPAL having used most recently Pro Series "WYSCO 16 INCH SUPER HIGH OUTPUT THIN LINE SERIES ELECTRIC FAN" reversable-pusher-pullers; the amp drain on these are listed as a max of 12Amp............ hope this is of help

Lou

 

[inkpot]

Howdy! Have any of you thought about an offset mechanical fan drive? Think of a Chevy small block with a serpentine belt setup. Imagine if one of the tension/idler pulleys was actually the fan pulley. The actual fan can be remote from the water pump. In the January issue of OEM Off-Highway magazine has an ad with a picture of this setup. It is a belt driven fan offset from the water pump. Check out <www.multi-wing.net>. Wish I had seen this years ago. John

 

[cruiserbrett]

You could press the 3fe water pump and a non fan clutch 2F water pump apart, and use the housing, bearing and impeller from the 3fe pump with the longer shaft and non clutch hub from the 2F pump... that is what I was planning on doing for my future 3FE pig...

 

[71-CRUISER]

You could press the 3fe water pump and a non fan clutch 2F water pump apart, and use the housing, bearing and impeller from the 3fe pump with the longer shaft and non clutch hub from the 2F pump... that is what I was planning on doing for my future 3FE pig...

OK the issue is that the bolt patern on the waterpump (where the pulley and fan bolt) changes when they changed from the direct drive fan to the clutch fan. The 3F uses the same waterpump flange as any late 2F with a fan clutch. I looked at puting a direct drive fan, pump flange on the 3F pump but then you cant use the 3F pump pulley which slides over the studs. A 2F waterpump (direct drive) pulley wont work so that is where I reached a DEAD END.

...

 

[cruiserbrett]

why wouldnt a non fan clutch pulley work? with the longer water pump shaft and correct hub it should be fine?

 

[inkpot]

OK the issue is that the bolt patern on the waterpump (where the pulley and fan bolt) changes when they changed from the direct drive fan to the clutch fan. The 3F uses the same waterpump flange as any late 2F with a fan clutch. There is enough room between the 3f waterpump and the stock 55 radiator to fit a direct drive fan but not enough room to fit a cluch fan which is about 1/2" to long to fit. I looked at puting a direct drive fan, pump flange on the 3F pump but then you cant use the 3F pump pulley which slides over the studs. A 2F waterpump (direct drive) pulley wont work so that is where I reached a DEAD END. There is about 2 1/2" between the pulley and radiator and I also havent been able to find an electric fan that thin. So the search continues.

Howdy! If the 3fe pulley will fit over the 2f flange, and it is just an issue of holes and studs lining up, just weld over the old ones and redrill the holes where you need them. Or, weld a large fender washer onto the pulley face and rework the holes in that. There's got to be an easy way to fab this up. John