radiator/crank clearance

[l3n]

Aloha folks. I'm working on installing a larger radiator w/electric fan into my '63 falcon, and after cutting and banging on the front support, I still only have around 1/4-1/3 inch of clearance between the fan and the crank pulley. Am I right to be worried about this, or is that enough space?

Assuming it's not, any suggestions on getting some more space in there would be appreciated. I was looking into adjustable motor mounts, but it turns out there's no such thing for the sixes that I can find. Would swapping to a single groove balancer be a good idea? That should bump up the clearance to around 1" but will having a lighter balancer cause any trouble on a '66 engine? Should I just bite the bullet and keep on cutting the front support?

This is a driveway project, done with a limited toolbox, so anything requiring specialized tools is out for now.


Thanks in advance for any advice out there.

 

[The Plankster Prankster]

the single groove balancer would be fine if you don't need a second groove for accessories. would work just fine. just ask yourself wether its a better use of time and cash to swap balancers or to keep cutting. i don't know, it depends in part on how easy it is to find the right balancer and how well equipped you are to keep cutting
its your call, both are good options

 

[l3n]

Thanks for the reply.

If a single groove will work, then that's the plan. I don't have ready access to a welder, so I'd rather not take off any more of the front support than is absolutely necessary.

Do you think 1" of clearance between the crank pulley and the fan enough? Is there a rule of thumb for how much travel I can expect from the engine under hard braking?

 

[bigcatchdaniel555]

My car just has the bigger rad in it and between that and the fan is about 3/4-1 inch and Ive never had a problem.

 

[The Plankster Prankster]

an inch should be enough - it shouldnt ever move more than 1/4" in that direction.
as for clearance between the pully and fan, my truck has just enough space to barely slide a fanbelt between em

 

[l3n]

Perfect! Thanks guys, I was starting to get worried, but if an inch will work then I should be fine with the thinner damper. Now all I have to do is finish the wiring and figure out the neutral safety and backup lamps, and she'll be on the road. I can't freaking wait!


Thanks again for all your help.