Serpentine belt conversion
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Serpentine belt conversion
Has anyone converted their truck from the v-belt setup to a 90's model Mustang type serpentine belt setup. If so I have some questions.
My truck has PS, A/C, etc. and I want to keep it all. Just not sure how to hook up the Mustang style A/C compressor to the 78 wiring.
Also, I think I have to use the Mustang water pump. I heard it is a reverse rotation due to the serpentine setup.
I could use some advice or links to someone who has done this.
Oh yeah, it is a 302.
My truck has PS, A/C, etc. and I want to keep it all. Just not sure how to hook up the Mustang style A/C compressor to the 78 wiring.
Also, I think I have to use the Mustang water pump. I heard it is a reverse rotation due to the serpentine setup.
I could use some advice or links to someone who has done this.
Oh yeah, it is a 302.
Hotshot
Joined: May 2003
Posts: 11,141
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From: south louisiana
The late 80's and 90's trucks also used a serpentine setup, it's basically the same as the 85-93 Stang's stuff. The A/C compressor just needs the single clutch wire. All the one belt serpentine setups use a reverse rotation waterpump. The 85-91 Crown Vic/Town car/Marquis used a two belt serpentine style system with a std rotation pump. One belt runs the alternator, P/S and water pump, the inner belt ran the A/C and smog pump. If you choose the one belt system, you'll also need to use everything from the timing cover forward, with the Vic setup, you can use the earlier timing cover and possibly the waterpump.
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From: Tampa Florida
So you want to switch over to a serpentine system. I have a 79 F-150 that I trashed the old flat tappet motor as she blew up. I now have a 86 302 HO Roller block with heads that were off a car so the truck accessory brakets would not bolt up like they did on the original block. So I had to rig some brakets just to get the PS pump, alternator and WP to work, no way to bolt up that 500lb ac compressor!
So then I saw this and just could not pass up. I just ordered it this weekend from Summit so I will send pics when it is done. No more hassles with the ac, ps etc
http://store.summitracing.com/partdetail.asp?autofilter=1&part=ZOP%2D8128&N=700+ 400003+317158+4294908331+4294840126+115&autoview=s ku
So then I saw this and just could not pass up. I just ordered it this weekend from Summit so I will send pics when it is done. No more hassles with the ac, ps etc
http://store.summitracing.com/partdetail.asp?autofilter=1&part=ZOP%2D8128&N=700+ 400003+317158+4294908331+4294840126+115&autoview=s ku
Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
Originally Posted by PierceEye
So you want to switch over to a serpentine system. I have a 79 F-150 that I trashed the old flat tappet motor as she blew up. I now have a 86 302 HO Roller block with heads that were off a car so the truck accessory brakets would not bolt up like they did on the original block. So I had to rig some brakets just to get the PS pump, alternator and WP to work, no way to bolt up that 500lb ac compressor!
So then I saw this and just could not pass up. I just ordered it this weekend from Summit so I will send pics when it is done. No more hassles with the ac, ps etc
http://store.summitracing.com/partdetail.asp?autofilter=1&part=ZOP%2D8128&N=700+ 400003+317158+4294908331+4294840126+115&autoview=s ku
So then I saw this and just could not pass up. I just ordered it this weekend from Summit so I will send pics when it is done. No more hassles with the ac, ps etc
http://store.summitracing.com/partdetail.asp?autofilter=1&part=ZOP%2D8128&N=700+ 400003+317158+4294908331+4294840126+115&autoview=s ku
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Joined: Nov 2004
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From: Tampa Florida
baddad457
I disagree on the heads, I had 2 different sets of heads and one set were off a car and one set off a truck, bolts holes were not in the same position, same size holes on both (3/8) now the heads on the truck now (can't rememeber which ones) are off a car and the original brakets off the truck will not bolt up to the heads. I.E The level of frustration and the fact that I am building a custom 79 F150 and have alot in the motor already I thought this serp conversion kit looked awesome.
I disagree on the heads, I had 2 different sets of heads and one set were off a car and one set off a truck, bolts holes were not in the same position, same size holes on both (3/8) now the heads on the truck now (can't rememeber which ones) are off a car and the original brakets off the truck will not bolt up to the heads. I.E The level of frustration and the fact that I am building a custom 79 F150 and have alot in the motor already I thought this serp conversion kit looked awesome.
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Joined: May 2003
Posts: 11,141
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From: south louisiana
The holes on the early heads (pre 77) are smaller, I guess it could be possible one is located slightly different than the 77-up heads too. I currently don't have a set of early heads to check this. The 77-up heads have 7/16" holes with the exception of the hole at the end of the Thermactor passage, that one's huge and uses a bushing to step it down to 7/16"
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That belt setup looks awesome! But, I cant afford that right now. The motor I am building is out of a 91 GT but the heads are GT40-P truck heads. I have a buddy that has the same set up in his mustang.
It looks like everything is going to work out as long as I stay w/ all mustang stuff.
I think I know now how to make the a/c work and I have a reverse rotation water pump for it. Now the next question has to do w/ the timing cover. Do I use the one from the truck w/ the mechanical fuel pump cut out or do I use the mustang cover and drill a hole for the mechanical pump.
I heard they are a little different.
I will put up some pics when I get it done.
It looks like everything is going to work out as long as I stay w/ all mustang stuff.
I think I know now how to make the a/c work and I have a reverse rotation water pump for it. Now the next question has to do w/ the timing cover. Do I use the one from the truck w/ the mechanical fuel pump cut out or do I use the mustang cover and drill a hole for the mechanical pump.
I heard they are a little different.
I will put up some pics when I get it done.
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Hotshot
Joined: May 2003
Posts: 11,141
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From: south louisiana
There were three(or more) timing covers from the mid 80's to the end of production, the first was the same one used from 1970-on & had the fuel pump boss ready to run. Then Ford cast it, but didn't machine it for use. Then they eliminated it altogether, then they went to the 88-up cover which used the short reverse pump, this cover was used on the Birds and Cougars, then the 94-95 Stangs, then with a slightly different waterpump in the Explorer/Mountaineer. And to add to the mix, the std cover was revised for the reverse rotation pump in the Fox Stangs/pickups & vans, the ports are reversed on this one from the 1970-up covers. Just pay attention to the mix of parts you're going to use.
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From: Tampa Florida
If your going with the serpintien setup with the reverse waterpump make sure you use the timing chain cover off the engine you are using the rest of the serp stuff from.
The reverse waterpump uses a different tc cover. Been there done that!
Now as BadDad said the fuel pump mounting are will not have the casting opened up. If you need a tc cover with the pump casting already cut out I have one that I was going to use, cutout 70%, cleaned and painted Ford Racing Blue.
You will need to finsh cleaning the passageway up as I stopped the reverse idea before I finished. I also have a brand new HV Reverse pump to bolt up.
If you want call me at my office: 813-886-3311 and since I own Distribution By Air i can ship it to you.
The reverse waterpump uses a different tc cover. Been there done that!
Now as BadDad said the fuel pump mounting are will not have the casting opened up. If you need a tc cover with the pump casting already cut out I have one that I was going to use, cutout 70%, cleaned and painted Ford Racing Blue.
You will need to finsh cleaning the passageway up as I stopped the reverse idea before I finished. I also have a brand new HV Reverse pump to bolt up.
If you want call me at my office: 813-886-3311 and since I own Distribution By Air i can ship it to you.
Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
From what I've heard, the 79 to mid 80's reverse pumps on the Stangs used the earlier std rotation timing cover. I've not tried that personally, that's just what I've heard. I do have both style covers on hand and the ports are clearly reversed on the reverse rotation cover.
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Thanks again for the info. I don't have a TC cover yet. I have a friend that has an 85 GT. I think I can use the one from his car. If I understand right '85 was the last year of the mech pump.
Otherwise I will be drilling out the hole.
Otherwise I will be drilling out the hole.
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