Putting Fan Clutch on a Non A/C Car?

Mr onetwo

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I will be getting my repaired and cleaned radiator back this afternoon. I have been gathering parts to put the cooling system back together. I am installing a Hayden 687 plate type trans cooler to take a little load off the rad. I also want to add a fan clutch. The parts manuals list the pulley and spacer as being identical. I already have the 7 blade A/C fan on the car. I got an ACDelco 15-80250 clutch. There seem to be problems with the Hayden HD clutch and the ACDelco unit comes highly recommended. The FSM has no specifics or pics on this install.....has anyone done this sort of thing?

ACDelco 15-80250 fan clutch.jpg


687 cooler.jpg
 
I'd like to sidestep the clutch issue for one brief moment and plead with you to not install the auxiliary cooler with those F#$@-ING zip ties and use honest to god brackets and fasteners.
Thank you. :D

P.S. It would kill me if I had to resort to rubber hose instead of hard plumbing but that's the traditional me talking.
 
You will have to find a fan clutch specific fan. The fan bolts to the aluminum part of the clutch so it needs a BIG hole in the middle for the shaft to go thru.

I got mine from a salvage yard but the days of finding 40+ year old cars in yards has passed for most of us.

If you don't have a "vintage" yard near by, I would return that clutch (or keep it for a spare) and order a complete kit from Mancini. It includes the fan and the clutch.

If the car doesn't already have one, a fan shroud would be a good addition at this time too.

http://www.manciniracing.com/vifanpa1.html

Kevin
 
You will have to find a fan clutch specific fan. The fan bolts to the aluminum part of the clutch so it needs a BIG hole in the middle for the shaft to go thru.

I got mine from a salvage yard but the days of finding 40+ year old cars in yards has passed for most of us.

If you don't have a "vintage" yard near by, I would return that clutch (or keep it for a spare) and order a complete kit from Mancini. It includes the fan and the clutch.

If the car doesn't already have one, a fan shroud would be a good addition at this time too.

http://www.manciniracing.com/vifanpa1.html

Kevin
Thanks Kevin, those kits are on backorder at Mancini and I think I will be able to find a used cheap stock one somewhere. I think 22" fan shrouds are really hard to find.
 
I'd like to sidestep the clutch issue for one brief moment and plead with you to not install the auxiliary cooler with those F#$@-ING zip ties and use honest to god brackets and fasteners.
Thank you. :D

P.S. It would kill me if I had to resort to rubber hose instead of hard plumbing but that's the traditional me talking.
Don't worry, it will be done to my high standards. I may bend up 3/8" steel lines myself. The cooler is furnished with -6 AN fittings(JIC) instead of hose barbs. I will hang the cooler on steel angles.
 
I just ran into a problem....the fan clutch I ordered is too tall. There is not enough space between the pulley and the radiator for it to fit. Evidently the max cooling radiator must be thinner than the 22" std. rad. The clutch from a '64 Newport with a 361 engine is identical except it is 1/2" shorter. It will have to work....there isn't any other one I can find in the application manual that is shorter.
 
The one I put on my 66 came off some random c-body in a yard. IIRC it was a 69 300 but I'm not sure.

After I installed it, it was apparent the hub was FUBAR so I just ordered one for a C-body and bolted it up.

I would have to go and look but I'm pretty sure the hub bolts direct to the pump. No spacers.

Kevin
 
Well, I lucked out and found a fan from my friend Chuck down in Lewiston for $20.Gives me a chance to check out a secret salvage yard that supposedly has 50+ C-bodies in it....we'll see about that. In the meantime the correct clutch is arriving tomorrow(gottah love Amazon Prime).I ordered 2 lengths of 3/8" annealed steel tubing from Inline Tube and should have that by the end of the week.....fingers crossed. I also found these fittings which you guys may find useful....they screw into the 727 and go straight to -6AN. http://www.ebay.com/itm/6-AN-To-1-8...Torqueflite-/231282930429?hash=item35d98972fd

A727 -6AN.jpg
 
727 case takes an 1/8 NPT fitting AFAIK. That fitting you show with the washer isn't pipe thread. That style of fitting however will work if you want to convert your brake flex lines to AN fittings and use braided stainless flex lines. That style fitting will screw directly into a brake caliper. They sell another adapter that goes from tube to NPT for the end that goes to the hard line.

Kevin
 
727 case takes an 1/8 NPT fitting AFAIK. That fitting you show with the washer isn't pipe thread. That style of fitting however will work if you want to convert your brake flex lines to AN fittings and use braided stainless flex lines. That style fitting will screw directly into a brake caliper. They sell another adapter that goes from tube to NPT for the end that goes to the hard line.

Kevin
I was just about to say that but you beat me to it.
This is the correct fitting except that it may not clear the tranny case so you will need a nipple to extend it out further too.

799-660451.jpg


1/8 NPT MALE to -6AN


jz2ksXQ.jpg






Or, as two stick said use a 3/8-24 FEMALE to 1/8 MALE adaptor for the fittings you bought.
wil-220-4024_w.jpg
 
You guys are missing the point of these fittings. They are straight thread with a copper sealing washer to take the stress off the 727 case. They can crack at those ports if an NPT fitting is over tightened.Also, he made them with a larger ID so you get more flow. I am not using AN style fittings...they are too bulky. I will be using -6 JIC tube nuts and sleeves. Both AN and JIC are 37 degree flare.

318-2.jpg


319-2.jpg


untitled.jpg
 
How do you propose to screw the straight thread into the pipe thread in the case?

Kevin
The straight and taper thread are the same.....it is made to screw right in by hand. A soft material like aluminum is not great for tapered NPT pipe thread.
 
If your are going to use tubing, I don't see the advantage over the OEM compression fittings. The only practical reason to go with an AN fitting is so you can use hose.

Cracking the case IMHO is a non issue. I've seen lots of fittings broken off in cases, never seen a case cracked by one. Relying on a gasket to seal on a non spot faced surface might be asking for a leak.

Kevin
 
:tard:

That needs further elaboration so I can understand that.

Me too.

I looked up the 2 threads and it is the same 1/8 27 but they call for different tap drill sizes so one may thread into the other but I suspect the thread engagement will be FUBAR. FUBAR and hydraulic pressure not a good combination IMHO.

Kevin
 
Sometimes reinventing the wheel isn't a good thing....
I have to say that I agree with you.
I bought the correct OEM type cooler line to transmission fittings on ebay for 5 bucks ea. recently. After all, how many gabillion of these have been installed with no problems.
 
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