The Ford Barn

oldford2 · 09-11-2013, 04:21 PM

51 merc-ct has it. See if the pulleys line up. They must be off. Should be 1/2" clearance between the fan blade and the clip. If not, remove the fan assembly, loosen the 2 bolts holding the shaft and move out. Difficult to do with the assembly in the car. Let us know. Don't bend the blades like some have suggested. Bum "patch"
John

oldford2 · 09-11-2013, 05:32 PM

Quote:

Originally Posted by Lawson Cox

I am more familiar with the earlier cars/trucks where there are different hub links. You could check and see if there is a model with a longer hub, or, can you build a spacer to put between the fan and the pulley?

\

Lawson,
I know I am going to get into trouble on this post but if you admit you are not familiar with this car, why do you propose a fix that is crazy?
Sorry Lawson
John

Rich Overton · 09-11-2013, 06:59 PM

I agree with ken of Ct. I changed over to the crab cap on my '48 Merc. Not only is there more clearance but tune ups take half the time.

Rich O.

Displayman · 09-12-2013, 07:21 AM

Thanks for the suggestions.

Bob Hampshire, Illinois

deuce_roadster · 09-12-2013, 09:59 AM

Borrow a known good fan and try that. Could there be an adapter between the timing gear cover and the distributer? I have seen 3 bolt to 2 bolt adapters. Maybe the timing gear cover is not the right one, I think there might be more then one 2 bolt type covers if there is no adapter.

V8COOPMAN · 09-12-2013, 10:52 AM

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Quote:

Originally Posted by deuce_roadster

.....Could there be an adapter between the timing gear cover and the distributer? I have seen 3 bolt to 2 bolt adapters....

deuce roadster brings-up a very pertinent possibility...is there maybe one of these distributor adapters in place? I have one laying on the shelf somewhere that I seem to remember being 5/16"-3/8" thick. DD

Displayman · 09-25-2013, 12:01 PM

update on Fan hitting Bale wire on distributor.
Our 47 Merc has a Fenton dual carb intake. Because of the 2 carbs, there was no room for generator in the middle where it would belong with a standard intake.
We chose to mount an alternator to the right side of the engine with a bracket that uses the head bolts. After adding the 2 carb intake the fan pulley and engine pulley were not in aligment. They were off about 1/4 " I took a 1/4 steel plate with 2 holes and used that between the fan mount and the intake. That 1/4 inch has rectified my problem of fan blade hitting the bale on the dizzy.
I tried removing the fan and mountm removing the 2 bots holding it in place, and moving the fan on the shaft, however there are 2 grooves on this shaft that prevent any fore or back movement.
Until I can figure this out, this is how I am driving our Merc.
Thanks for everybodies imput.
Bob, Hampshire, Illinois

Mart · 09-25-2013, 12:14 PM

Quote:

Originally Posted by Displayman

We have a 1947 Mercury Convertible with a stock 59ab flat head engine.

Not quite stock then.

Glad you were able to work out what the problem was, though.

Mart.

51 MERC-CT · 09-25-2013, 12:24 PM

Quote:

Originally Posted by Displayman

I tried removing the fan and mountm removing the 2 bots holding it in place, and moving the fan on the shaft, however there are 2 grooves on this shaft that prevent any fore or back movement.
Until I can figure this out, this is how I am driving our Merc.
Thanks for everybodies imput.
Bob, Hampshire, Illinois

Possibly grind 2 new grooves on the opposite side of the shaft in suitable location to correct problem.

rotorwrench · 09-25-2013, 01:11 PM

Normally the fan would have mounted on the generator mounting bracket. The generator being removed took the OEM spacing away (the thickness of the generator bracket) unless it is still there to just support an idler pulley modification. If you are mentioning the two pinch bolts that hold the fan shaft to the slider bracket, the shaft is suposed to only be mounted in one location. It wasn't set up to move fore or aft any amount. I've seen modified shafts in custom installations. This is how a lot of AV8s were set up only they turned the fan adjusting bracket upside down & generally replaced it with the aluminum aftermarket bracket that slides on the generator stud.

Ian NZ · 09-25-2013, 04:35 PM

[QUOTE=Rich Overton;724090]I agree with ken of Ct. I changed over to the crab cap on my '48 Merc. Not only is there more clearance but tune ups take half the time.

If you change over to the crab cap on the 1946 - 48 Ford V8 would you have to change the ignition wire conduits, as the ends where the wires come out would be exposed for quite a length before they reach the crab cap.

09-11-2013, 04:21 PM	#21
oldford2 Senior Member Join Date: May 2010 Location: pittsfield, MA Posts: 2,086	Re: Fan blade hitting distriblutor bale wire 51 merc-ct has it. See if the pulleys line up. They must be off. Should be 1/2" clearance between the fan blade and the clip. If not, remove the fan assembly, loosen the 2 bolts holding the shaft and move out. Difficult to do with the assembly in the car. Let us know. Don't bend the blades like some have suggested. Bum "patch" John

09-11-2013, 06:59 PM	#23
Rich Overton Senior Member Join Date: Jun 2010 Posts: 135	Re: Fan blade hitting distriblutor bale wire I agree with ken of Ct. I changed over to the crab cap on my '48 Merc. Not only is there more clearance but tune ups take half the time. Rich O.

09-12-2013, 07:21 AM	#24
Displayman Senior Member Join Date: May 2010 Location: Hampshire, Illinois Posts: 392	Re: Fan blade hitting distriblutor bale wire Thanks for the suggestions. Bob Hampshire, Illinois

09-12-2013, 09:59 AM	#25
deuce_roadster Senior Member Join Date: Oct 2011 Location: Shelton, WA Posts: 3,800	Re: Fan blade hitting distriblutor bale wire Borrow a known good fan and try that. Could there be an adapter between the timing gear cover and the distributer? I have seen 3 bolt to 2 bolt adapters. Maybe the timing gear cover is not the right one, I think there might be more then one 2 bolt type covers if there is no adapter.

09-25-2013, 12:01 PM	#27
Displayman Senior Member Join Date: May 2010 Location: Hampshire, Illinois Posts: 392	Re: Fan blade hitting distriblutor bale wire update on Fan hitting Bale wire on distributor. Our 47 Merc has a Fenton dual carb intake. Because of the 2 carbs, there was no room for generator in the middle where it would belong with a standard intake. We chose to mount an alternator to the right side of the engine with a bracket that uses the head bolts. After adding the 2 carb intake the fan pulley and engine pulley were not in aligment. They were off about 1/4 " I took a 1/4 steel plate with 2 holes and used that between the fan mount and the intake. That 1/4 inch has rectified my problem of fan blade hitting the bale on the dizzy. I tried removing the fan and mountm removing the 2 bots holding it in place, and moving the fan on the shaft, however there are 2 grooves on this shaft that prevent any fore or back movement. Until I can figure this out, this is how I am driving our Merc. Thanks for everybodies imput. Bob, Hampshire, Illinois

09-25-2013, 01:11 PM	#30
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,436	Re: Fan blade hitting distriblutor bale wire Normally the fan would have mounted on the generator mounting bracket. The generator being removed took the OEM spacing away (the thickness of the generator bracket) unless it is still there to just support an idler pulley modification. If you are mentioning the two pinch bolts that hold the fan shaft to the slider bracket, the shaft is suposed to only be mounted in one location. It wasn't set up to move fore or aft any amount. I've seen modified shafts in custom installations. This is how a lot of AV8s were set up only they turned the fan adjusting bracket upside down & generally replaced it with the aluminum aftermarket bracket that slides on the generator stud. Last edited by rotorwrench; 09-25-2013 at 01:29 PM.

09-25-2013, 04:35 PM	#31
Ian NZ Senior Member Join Date: May 2010 Location: Taranaki, New Zealand Posts: 922	Re: Fan blade hitting distriblutor bale wire [QUOTE=Rich Overton;724090]I agree with ken of Ct. I changed over to the crab cap on my '48 Merc. Not only is there more clearance but tune ups take half the time. If you change over to the crab cap on the 1946 - 48 Ford V8 would you have to change the ignition wire conduits, as the ends where the wires come out would be exposed for quite a length before they reach the crab cap.