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Old 07-12-2018, 07:07 AM   #1
mrscullini
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Default fan belts for non a/c

'79 sII with 345 with factory a/c. need to replace belts. i'd like to bypass a/c and the air pump. no big deal on the air pump because it is driven by a dedicated belt. the belt driving the a/c comp also runs the water pump and the alt.

having trouble finding the belt for a non a/c model. can somebody give me a belt length or p/n?
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Old 07-12-2018, 08:03 AM   #2
Scoutboy74
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Default Re: fan belts for non a/c

While the AC Comp is driven off the fan/WP pulley set, it is a separate belt riding on the outer pulley, independent of the alternator. As such, that belt can be removed at any time with no effect on alternator function. The alternator is typically driven by twin belts via a dual pulley, with the belts routed around both the upper and lower engine pulley stacks to form a triangle arrangement. The same belts are involved whether or not an AC compressor is in place. They are a common and readily available part.
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Coal Trickle - '99 Dodge Ram SLT 2500 Q-Cab SWB 4x4 - 5.9L 24V CTD/NV4500/8800# GVWR/12K# winch
Hooty - '74 SII 4x4 - 392/TF727/D20/3.73 D44's/Spartan FA/Krac-lok RA/RC 4" SUA/34x11.5 TSLs/33g Fuel/8K# winch
Lemuel - '72 1210 LWB 4x4 CS - 304/TF727/NP205/RA D60 4.10 - "Pull Lemuel, pull!"
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Old 07-12-2018, 08:27 AM   #3
mrscullini
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Default Re: fan belts for non a/c

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Originally Posted by Scoutboy74 View Post
While the AC Comp is driven off the fan/WP pulley set, it is a separate belt riding on the outer pulley, independent of the alternator. As such, that belt can be removed at any time with no effect on alternator function. The alternator is typically driven by twin belts via a dual pulley, with the belts routed around both the upper and lower engine pulley stacks to form a triangle arrangement. The same belts are involved whether or not an AC compressor is in place. They are a common and readily available part.
thanks scoutboy. my seems to be a little different arrangement. the a/c is driven by dual belts. take a look,

https://photos.app.goo.gl/s9BDHF8EcL3A1NcXA

https://photos.app.goo.gl/8fMJFK1rceHTPuXQ8
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Old 07-12-2018, 08:30 AM   #4
Scoutboy74
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Default Re: fan belts for non a/c

If you tried to attach pics, something went wrong. Can't see anything.

Edit. I see them now.

That doesn't look like any of the stock SII AC belt configurations that I've seen.
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Favorite hobby...Driving Salma Hayek in my Scout

Coal Trickle - '99 Dodge Ram SLT 2500 Q-Cab SWB 4x4 - 5.9L 24V CTD/NV4500/8800# GVWR/12K# winch
Hooty - '74 SII 4x4 - 392/TF727/D20/3.73 D44's/Spartan FA/Krac-lok RA/RC 4" SUA/34x11.5 TSLs/33g Fuel/8K# winch
Lemuel - '72 1210 LWB 4x4 CS - 304/TF727/NP205/RA D60 4.10 - "Pull Lemuel, pull!"
Mongo - '71 1210 LWB 2WD - 345/TF727/RA17 D60 4.10 Krac-lok - "Mongo love candy! Duh, huh, huh!"
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Old 07-12-2018, 08:36 AM   #5
mrscullini
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Default Re: fan belts for non a/c

Quote:
Originally Posted by Scoutboy74 View Post
If you tried to attach pics, something went wrong. Can't see anything.

Edit. I see them now.

That doesn't look like any of the stock SII AC belt configurations that I've seen.
thanks. it dawned on me that maybe it is not a stock setup. i'll take a look at google images for the stock configuration.
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Old 07-12-2018, 08:44 AM   #6
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Default Re: fan belts for non a/c

If you look down in the classified section, there is a recent posting with pictures from a member selling a complete 345 engine with AC and air pump attached.
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Favorite hobby...Driving Salma Hayek in my Scout

Coal Trickle - '99 Dodge Ram SLT 2500 Q-Cab SWB 4x4 - 5.9L 24V CTD/NV4500/8800# GVWR/12K# winch
Hooty - '74 SII 4x4 - 392/TF727/D20/3.73 D44's/Spartan FA/Krac-lok RA/RC 4" SUA/34x11.5 TSLs/33g Fuel/8K# winch
Lemuel - '72 1210 LWB 4x4 CS - 304/TF727/NP205/RA D60 4.10 - "Pull Lemuel, pull!"
Mongo - '71 1210 LWB 2WD - 345/TF727/RA17 D60 4.10 Krac-lok - "Mongo love candy! Duh, huh, huh!"
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Old 07-12-2018, 08:54 AM   #7
mrscullini
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Default Re: fan belts for non a/c

Quote:
Originally Posted by Scoutboy74 View Post
If you look down in the classified section, there is a recent posting with pictures from a member selling a complete 345 engine with AC and air pump attached.
thanks. found this in the classifieds,

https://forums.ihpartsamerica.com/at...3&d=1531255385

it has a/c, but no smog pump. wondering if mine is a different config due to the smog pump?
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Old 07-12-2018, 09:04 AM   #8
Scoutboy74
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Default Re: fan belts for non a/c

That's the one. Since the air pump would also be driven by a separate belt, I don't see that the lack or presence of said would have any impact on AC or ALT belt arrangements. Are the p/n's on your existing alt/ac belts still legible? If so, perhaps searching that p/n would indicate which vehicles were commonly associated with it.
I've not found any listing for IH light line alternator belts for the SV8 engine that differentiates between AC Vs. non-AC from 1969-80. Same p/n are used in either case.
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Favorite hobby...Driving Salma Hayek in my Scout

Coal Trickle - '99 Dodge Ram SLT 2500 Q-Cab SWB 4x4 - 5.9L 24V CTD/NV4500/8800# GVWR/12K# winch
Hooty - '74 SII 4x4 - 392/TF727/D20/3.73 D44's/Spartan FA/Krac-lok RA/RC 4" SUA/34x11.5 TSLs/33g Fuel/8K# winch
Lemuel - '72 1210 LWB 4x4 CS - 304/TF727/NP205/RA D60 4.10 - "Pull Lemuel, pull!"
Mongo - '71 1210 LWB 2WD - 345/TF727/RA17 D60 4.10 Krac-lok - "Mongo love candy! Duh, huh, huh!"
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Old 07-12-2018, 10:00 AM   #9
mrscullini
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Default Re: fan belts for non a/c

Quote:
Originally Posted by Scoutboy74 View Post
That's the one. Since the air pump would also be driven by a separate belt, I don't see that the lack or presence of said would have any impact on AC or ALT belt arrangements. Are the p/n's on your existing alt/ac belts still legible? If so, perhaps searching that p/n would indicate which vehicles were commonly associated with it.
I've not found any listing for IH light line alternator belts for the SV8 engine that differentiates between AC Vs. non-AC from 1969-80. Same p/n are used in either case.
thanks again. i was just thinking maybe the air pump caused and issue because of the the pulley arrangement. anyway, disregard.

the 2 belts on the alt is a 7695. this belt is speced for some ihc vehicles, but no scouts. mostly 60's trucks. it is a long belt at 70" circumference. the alt belt speced for the scout is 61".

thinking some "itchy hands" did some fancy belt rearranging along the way.

gonna buy a couple of the speced belts and see what happens.
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Old 07-12-2018, 10:14 AM   #10
Scoutboy74
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Default Re: fan belts for non a/c

Yep, I was going to suggest that. Should get you close anyway. Most stores are good about taking belts back if it turns out they don't work for you.
Looks like the work was well done by whoever did it to incorporate that dual pulley compressor from whatever vehicle it originally was meant to fit.
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Favorite hobby...Driving Salma Hayek in my Scout

Coal Trickle - '99 Dodge Ram SLT 2500 Q-Cab SWB 4x4 - 5.9L 24V CTD/NV4500/8800# GVWR/12K# winch
Hooty - '74 SII 4x4 - 392/TF727/D20/3.73 D44's/Spartan FA/Krac-lok RA/RC 4" SUA/34x11.5 TSLs/33g Fuel/8K# winch
Lemuel - '72 1210 LWB 4x4 CS - 304/TF727/NP205/RA D60 4.10 - "Pull Lemuel, pull!"
Mongo - '71 1210 LWB 2WD - 345/TF727/RA17 D60 4.10 Krac-lok - "Mongo love candy! Duh, huh, huh!"
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