Still looking for help with this, gotta be someone on this board thats runnin A/C.

I have my compressor mounted, have looked again thru the service manual and there is no mention of how the belts are routed and what feeds what.

I went over to Napa and bought what they said would be the correct belts and figured I could hang them and see whats what but that did not work.

Im pretty sure I need a two pulley alt. but even if I had that I still do not see what is supposed to go where.

Maybe I have the wrong alt. brackets or the wrong compressor brackets, I really need someone that has this on their truck tell me what is going on. I cant imagine it making any difference what year six someone might have but mine is 1986

Your alternator, water pump is correct, the A/C is driven from the crank to the A/C, to a emission air pump, back to crank. The air pump is used to adjust belt, if you don't want to install an air pump, you will need to fab up and install a idler pulley to use as a belt adjuster. The A/C unit looks like a V8 unit with 2 pulley grooves, 6 cylinders have a single groove, if one of the grooves line up with a crank groove it should work. When I installed my supercharger I had to switch around my belt drive, remove the air pump and add an idler pulley, the idler pulley i used was from a 1970 ford product, I think it was a A/C idler pulley for a 351 Couger, it comes with a bracket that makes it adjustable, I can get you a part # if you need it. You will still need to fab up a mount to mount the idler bracket and it may not be has hard as you think, here is a pic of it to give you an idea, click on it and it should enlarge. Also I used the outter pulley groove on the crank for fitment with supercharger the inner groove should be used and it looks like your A/C lines up with that

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From what I can see in the first picture, it appears that the rear pulley groove on the compressor would align properly with the pulley that monts on the rear of the balancer, between the4 balancer and the engine. I encountered this when installing a Sanden compressor on my Dart. I found a Dodge Aspen or Plymouth Volare (don't remember which, but both the same) that had factory air and got the pulley there---salvage yard. Actually, there were many of this vintage that had a slant 6 with A/C. Anyhow, make an eyeball check of pulley alignment and see if this would work for you.

Oh, my compressor has two grooves too, but that isn't a problem--just use the groove that aligns properly and use one belt. You will need some kind of idler for adjustability and fabrication could be the name of the game there.

Jerry in Denver

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Jerry in beautiful Colorado

I know it might be hard to believe but I was just going to make a post saying I had figured out what was going on.

Where were you guys a few weeks/months ago

As it turns out I had the diagram the whole time but it was hidden within my 86/87 parts manual and there is over a thousand pages there.

Anyway you guys are absolutely correct and thanks for chiming in, I sure could use some more specifics on what to look for with the idler pulley, I figured Id have to find something and make it work, Id like to do this with Mopar parts but at this point Ill paint a Ford part Chrysler blue and forgive it for its past sins

I do have the original compressor that was removed with the single pulley, I will just for the heck of it look into seeing what its going to take to swap pulleys, evidently according to the parts books the compressors were the same between the 8s and 6s, it was only the clutch/pulley assy on the 6 that was single groove. Anyway looks like I do indeed have the right compressor and Id like to swap the clutch/pulley for a much cleaner/finished look.

Anyone know if a new clutch is avail for these things, single pulley I mean? I do not know if my original is any good

Is it just a matter of getting power to it and hearing if it clicks as far as testing?

Napa tells me the only clutch they can sell me is the double groove. They did give me their old part number for the 86 single groove and maybe I can do something with it.

I have the original air pump but it is toast, un-usable. I wouldnt want it hanging there anyway.

I am also wondering if you were at one time a forum member of the R.C site, I was going thru old posts this A.M looking for ny info I could and ran across a fellow that looked like he had the same engine set-up as you have posted here but if I remember correctly he stopped posting in 2007 if memory serves me.

Very nice detail work on the engine anyway, I am wondering if new rubbers are still avail for the top of the valve cover, PCV ect.

Better/closer pictures of your idler pulley would help as well if avail.

Ok Thanks, so I take it your still using your smog pump? Slant engines are getting tougher to find down here, I have yet to see one with A/C other than my own, Ive even waved down people in traffic just to ask.

1930,

Actually, my '66 Dart never had an air injection system. I got a set of brackets from CharrlieS that positions one of the two compressor pulley grooves correctly for the use of the crank pulley located on the balancer between the balancer and the engine, which it appears to align in the picture you posted. Your issue is the fabrication of an idler bracket and pulley that takes the place of the air pump which you said is the original belt adjustment member on your vehicle. It could be challenging to fabricate an idler assembly, but not all that bad. Generic idler pulleys are listed regularly on ebay and also available at most parts stores and if you start with one of those you can build up to a properly operating idler. Also, unless your compressor clutch is bad, you don't need to go to the single groove clutch. Just leave the unneeded groove empty.

Jerry


Jerry

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Jerry in beautiful Colorado

Ok 66 Dart, I had one years ago, slant six 3 on the tree, it was one of the best cars I had ever owned as far as reliability. I loved that car, I dont know what ever happened to it. Had to sell it because of a job change.

Thanks, I am still looking into my best options for idler pulley.

In looking for an idler pulley wouldnt I need a specific size groove for the belt I am working with, in other words wouldnt I want the groove to match my compressor?

E-bay has an awful lot of pulleys listed, Id like to find the best/strongest I can so Im not changing it out every couple of years.

I was given this picture, it originated from this forum

The original posters user I.D was Charlie S can someone tell me if he is still active on this board? I click on his username and it does nothing.

I would like to ask him how exactly the adjustment is made, I see the adjustment bolt in the rear but how did he mount the pulley, I am assuming he slotted out the plate but then how is the pulley supported ect.

Id like to come up with something similar for my own car.

Blowing up the picture it looks like there is some sort of collar on the backside of pulley with a ready made fixture that the bolt screws into, Id like to know what exactly he used if possible.

I am still here. If you go to this post, http://slantsix.org/forum/viewtopic.php?t=53842 and click the links, there are more pictures of my kit. My main bracket has a slot and a "T" bolt that slides in the slot.

Where are you located?

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225

Thanks, I will check it out, I am in Brandon Fl just outside of Tampa

Mother Mopar was smiling down on me this A.M at the salvage yard, a truck that I had looked at many times and borrowed many parts from had an idler bracket pulley on it, unfortunatly I think it is something that someone added for some strange reason, they had it bolted to the top of the smog pump bracket where originally one of the A/C bolts would have passed thru.

There was no thought given for any sort of adjustment, I have no idea what they were trying to accomplish but I pulled the pulley and what I could anyway.

I will go check out that post now and may have some more questions if you have the time. Thanks

Picture 01 Charlies kit was a big help, all I really need to do is get the pulley configured, maybe you can sell me just what I need or give me the needed info to get the parts locally.

I understand you are in buisness to sell your kits though so let me know what you are willing to do. Thanks again and nice work.

You're not that awfull far from. I will pm my phone number

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225

1930'

Now that you are in contact with Charlie, you are in good hands. I highly recommend his Sanden compressor bracket kit for the slant six. I simply bolted it on and mounted the compressor onto it. Perfect fit. Charlie is very helpful and will give you good advice.

Yep, I really like the '66 Dart. This is the third '66 I've had over the decades. First was a GT 273 4bbl 4-speed back when it was still in factory warranty. In the mid seventies I had a GT 273 2-bbl A/T. Wish I still had both of those, but the current one is kinda cool 'cause of the split exhaust manifold. Takes me back to high school. Most of the dual exhaust cars back then were 216 and 235 Chevys with a couple of flathead Plymouths thrown in.
Jerry

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Jerry in beautiful Colorado