I am reassembling my '65 with the radiator and fan blade (4 blade factory style, 18.5" diameter) that came off the truck, and noticed there is only 1/8" clearance between the fan and the upper radiator hose. Is this normal? Seems to me the torque of the motor could close that gap pretty quickly. I'm thinking of either trimming some material from the blade tips or elongating the holes in the radiator to gain little more clearance. I dread taking the radiator back out. Putting the hoses on was a pita.
Tried to attach a photo but "...board attachment quota has been reached."
Thanks for any input.
Fan blade clearance
Fan blade clearance
David
65 F100 swb (352 3 spd manual, not running)
Previous rides:
69 Bronco, completed frame-off restoration
07 Kawasaki KLR650
92 Acura Integra GSR
65 Mustang 2+2 A-code
67 Mustang coupe C-code
65 F100 swb (352 3 spd manual, not running)
Previous rides:
69 Bronco, completed frame-off restoration
07 Kawasaki KLR650
92 Acura Integra GSR
65 Mustang 2+2 A-code
67 Mustang coupe C-code
-
- Posts: 206
- Joined: January 26, 2007, 8:04 pm
- Location: eudora ks
Re: Fan blade clearance
i would not trim the fan blades. they are balanced. i would look for a different shaped radiator hose or locate a smaller fan.Mojave922 wrote:I am reassembling my '65 with the radiator and fan blade (4 blade factory style, 18.5" diameter) that came off the truck, and noticed there is only 1/8" clearance between the fan and the upper radiator hose. Is this normal? Seems to me the torque of the motor could close that gap pretty quickly. I'm thinking of either trimming some material from the blade tips or elongating the holes in the radiator to gain little more clearance. I dread taking the radiator back out. Putting the hoses on was a pita.
Tried to attach a photo but "...board attachment quota has been reached."
Thanks for any input.
jim
1966 F100 SW 428CJ C6
1965 F100 SW 428 TL sold
1966 F100 SW CVC 428CJ C6
1965 F100 SW CVC 428CJ C6
1966 F100 LB RANGER 390 C6 sold finally
1965 F100 SW CVC 460PI C6
1965 F100 SW CVC 428CJ C6
1972 F100 RANGER XLT SW 428 C6 SOLD
1967 F100 SW CVC 521 C6
1967 F350 390 4 SPEED
1970 F350 428 4 SPEED
1974 F350 428 4 SPEED
1966 F100 523 STROKER C6 GEARVENDORS OVERDRIVE finished
1965 F100 SW 428 TL sold
1966 F100 SW CVC 428CJ C6
1965 F100 SW CVC 428CJ C6
1966 F100 LB RANGER 390 C6 sold finally
1965 F100 SW CVC 460PI C6
1965 F100 SW CVC 428CJ C6
1972 F100 RANGER XLT SW 428 C6 SOLD
1967 F100 SW CVC 521 C6
1967 F350 390 4 SPEED
1970 F350 428 4 SPEED
1974 F350 428 4 SPEED
1966 F100 523 STROKER C6 GEARVENDORS OVERDRIVE finished
- charliemccraney
- Posts: 1743
- Joined: July 9, 2008, 10:02 pm
- Location: Lawrenceville, GA
Re: Fan blade clearance
Assuming that the hose is correct and routed correctly, you need a smaller fan.
Lawrenceville, Ga
1961 F100 Unibody
318 Y-block (292 +.070 bore, +.170 stroke), FMS T5-Z w/Mustang 10.5" diaphragm clutch.
1961 F100 Unibody
318 Y-block (292 +.070 bore, +.170 stroke), FMS T5-Z w/Mustang 10.5" diaphragm clutch.
Re: Fan blade clearance
Get a longer hose,one that is flexible with ribs....
___________________________________
"DW JONES TRUCKING"
WHISKEY HAULED,LIES TOLD AND WIDOWS WOO'ED......
"By appointment only"
"DW JONES TRUCKING"
WHISKEY HAULED,LIES TOLD AND WIDOWS WOO'ED......
"By appointment only"
Re: Fan blade clearance
Didn't even think about the blades being balanced. Thanks for that tip and others. Will be looking for a smaller diameter flex fan.
David
65 F100 swb (352 3 spd manual, not running)
Previous rides:
69 Bronco, completed frame-off restoration
07 Kawasaki KLR650
92 Acura Integra GSR
65 Mustang 2+2 A-code
67 Mustang coupe C-code
65 F100 swb (352 3 spd manual, not running)
Previous rides:
69 Bronco, completed frame-off restoration
07 Kawasaki KLR650
92 Acura Integra GSR
65 Mustang 2+2 A-code
67 Mustang coupe C-code
Re: Fan blade clearance
I finally figured out why the gap is so much closer. I retrofitted a '62 390 block into my '65 which required adding 1/4 steel plates to the motor mounts. That effectively raised the front end of the engine. I think I can drill new holes in the radiator flange to raise it 1/2" or so, enough to buy some fan clearance and still clear the hood. Boy, if I would have known all the little tweaks that would be required to fit a '62 engine...
David
65 F100 swb (352 3 spd manual, not running)
Previous rides:
69 Bronco, completed frame-off restoration
07 Kawasaki KLR650
92 Acura Integra GSR
65 Mustang 2+2 A-code
67 Mustang coupe C-code
65 F100 swb (352 3 spd manual, not running)
Previous rides:
69 Bronco, completed frame-off restoration
07 Kawasaki KLR650
92 Acura Integra GSR
65 Mustang 2+2 A-code
67 Mustang coupe C-code
-
- Posts: 906
- Joined: August 12, 2009, 9:44 am
- Location: Ohio
Re: Fan blade clearance
I was unaware until recently about the early and later FE blocks. I have one of each sitting side by side and the difference is both minor and obvious at the same time. Glad you figured it out.
Re: Fan blade clearance
Not related to your fan to hose clearance, How close is the fan to the radiator? The C2AE pumps and pulleys have the same belt groove spacing as other FE engines but the long nose shaft will put the fan closer to the radiator if you use the truck fan spacer.Mojave922 wrote:I finally figured out why the gap is so much closer. I retrofitted a '62 390 block into my '65 which required adding 1/4 steel plates to the motor mounts. That effectively raised the front end of the engine. I think I can drill new holes in the radiator flange to raise it 1/2" or so, enough to buy some fan clearance and still clear the hood. Boy, if I would have known all the little tweaks that would be required to fit a '62 engine...
Chris
Re: Fan blade clearance
Hey Chris, I do remember you saying something about the longer water pump shafts on the early engines. Currently with the 1" spacer and factory fan, there is about 1.5" from fan to radiator. Without the spacer, the fan contacts the 3-groove crank pulley.chris401 wrote:Not related to your fan to hose clearance, How close is the fan to the radiator? The C2AE pumps and pulleys have the same belt groove spacing as other FE engines but the long nose shaft will put the fan closer to the radiator if you use the truck fan spacer.Mojave922 wrote:I finally figured out why the gap is so much closer. I retrofitted a '62 390 block into my '65 which required adding 1/4 steel plates to the motor mounts. That effectively raised the front end of the engine. I think I can drill new holes in the radiator flange to raise it 1/2" or so, enough to buy some fan clearance and still clear the hood. Boy, if I would have known all the little tweaks that would be required to fit a '62 engine...
David
65 F100 swb (352 3 spd manual, not running)
Previous rides:
69 Bronco, completed frame-off restoration
07 Kawasaki KLR650
92 Acura Integra GSR
65 Mustang 2+2 A-code
67 Mustang coupe C-code
65 F100 swb (352 3 spd manual, not running)
Previous rides:
69 Bronco, completed frame-off restoration
07 Kawasaki KLR650
92 Acura Integra GSR
65 Mustang 2+2 A-code
67 Mustang coupe C-code