Another stupid cooling question

[Oldgamefreak]

Does anyone know, does the fan HAVE to be IN the shroud or can it be just to the outside of the opening? I got my seven blade (TJ) fan today but it has a MUCH larger diameter than the 5 blade YJ fan. My only options would be to trim the shroud so that the fan was about ½ an inch from the opening, buy an electric or live with the 5 blades. It stays at or under 210 while moving at 110F outside temp. If I let is sit for 10 to 15 min (without moving) with the air on high it starts to get uncomfortably high on the gauge.

[ademster]

It will be fine... it isnt the best thing but you should be fine..


I would trim enough off... and build spacers and then build a new shroud piece around the fan...


the shroud creates a tunnel for the air to move through which directs the air to the engine ( and guides it through the condensor and radiator )

with out the shroud it will just " throw the air" around rather then pull it through.

[shaggy914]

the shroud just created a was for the fan to more efficiently create a vacuum.

would the TJ shroud fit?

[Oldgamefreak]

Shaggy, I was just thinking that. The radiator is the same for the YJ and TJ so it should bolt up. My question is: is the 4cyl TJ and the 6cyl TJ fan \ shroud the same diameter? If someone with a 4cyl and a 6cyl can measure the fan opening on the shroud I would appreciate it.

[Oldgamefreak]

I did some checking and was "told" the 4cyl TJ uses the small fan as well:mad:. The 6cyl shroud is not deep enough to cover the blades by, oh, about 9 inches:mad:. How much to have something fabed up?

I am frustrated with this project. If I can't come up with something I'll have a NEW 7 blade fan for sale. I'll go with the Flex-a-lite electric and be done. I might go with the Taurus fan and the DCCONTROL box. It will be cheaper but I like the all in one of the F.A.L.

[shaggy914]

do it yourself.
start with Styrofoam blocks then cut the necessary shape with a hot wire.
sand smooth then use filer glass sheets(the woven ones) and resin.
let harden.
sand smooth.
paint.

[ademster]

^^^

that or get your self a 55gallon drum... cut it to the length needed...

Drill Holes. makes brackets and mount it to your radiator..

I did this on my 65 few years ago and worked great.,