Fan placement

[Gliderider06]

I got my radiator, shroud and fan mounted today. I feel that it is not in the shroud deep enough. Am I correct?

 

[409envy]

You need the spacer that goes in between the fan and your water pump pulley.... fan should be in the shroud with maybe 1/4" of the blades exposed. If you run it as is it may not cool efficiently and will likely run hot.

 

[Gliderider06]

You need the spacer that goes in between the fan and your water pump pulley.... fan should be in the shroud with maybe 1/4" of the blades exposed. If you run it as is it may not cool efficiently and will likely run hot.

Maybe I will try to find a taller fan clutch. The shaft is barely over an inch on this clutch.

 

[327]

Gliderider06 ... The fan blade should be half in and half out of the shroud.

 

[4speedman]

Try it like it is i have good luck with the fan like that

 

[327]

Like 4speedman said you can try it.

 

[pvs409]

Do you have the 6 mounting spacers on your 6 bolts radiator mounting bracket used on all
factory 409 cars? These spacers move the fan shroud at least a 1” closer to the motor.
Show Cars in Minnesota has the factory style spacers. These spacers correctly locate the 409 fan shroud in
your pictures over the fan.

Also all factory 409’s had dual deep groove upper water pump pulleys ( dual pulleys would move the
fan toward the radiator ). They also had factory dual deep groove one piece crankshaft pulleys.

Paul

 

[327]

So this would bring the fan blade half in and out of the shroud.

 

[Gliderider06]

Do you have the 6 mounting spacers on your 6 bolts radiator mounting bracket used on all
factory 409 cars? These spacers move the fan shroud at least a 1” closer to the motor.
Show Cars in Minnesota has the factory style spacers. These spacers correctly locate the 409 fan shroud in
your pictures over the fan.

Also all factory 409’s had dual deep groove upper water pump pulleys ( dual pulleys would move the
fan toward the radiator ). They also had factory dual deep groove one piece crankshaft pulleys.

Paul

I do not have any spacers as of yet. I think I need to get a longer fan clutch and then possibly the spacers. I have other pullies that I can try, but somehow I believe this was the best of what I already have.

 

[Iowa 409 Guy]

I have no need for these. I went electric...

 

[Lt.FrankDrebin]

That fan clutch seems short. Mine spaces the fan 2" from the pulley and has the fan 1/2 in and 1/2 out of the shroud, which is where it should be.

 

[327]

And I said too.

 

[327]

Old School Rule of Thumb. 1/2 in and 1/2 out of the shroud.

 

[Gliderider06]

That fan clutch seems short. Mine spaces the fan 2" from the pulley and has the fan 1/2 in and 1/2 out of the shroud, which is where it should be.

I thought so too. I ordered a new one that is 1" longer.

 

[409forever]

I have no need for these. I went electric...
View attachment 131831

PM Sent

 

[SSpev]

Those pulleys look like small block and 348. They don't look like deep grove 409s. yes they work but just saying.

 

[Gliderider06]

Those pulleys look like small block and 348. They don't look like deep grove 409s. yes they work but just saying.

You are correct. Crank pulley is 348 and WP is small block. I'm working with what I have at the moment and will get different pullies later on.

 

[SSpev]

You are correct. Crank pulley is 348 and WP is small block. I'm working with what I have at the moment and will get different pullies later on.

Man after my own heart

 

[Gliderider06]

Much better...

 

[Iowa 409 Guy]

Sweet