V belt issues and install - The 1947 - Present Chevrolet & GMC Truck Message Board Network

SeeTen · 09-14-2012, 09:42 PM

Hey all! My brother and I are working on a '69 C10 with a Factory Crate 307. (Pictures coming soon, but I haven't found the time... too much to do). To date, we've done full suspension (PO thought it would be a good idea to heat the springs. The 40 YEAR OLD springs), a few other random things, and most recently the intake manifold and carb (to get rid of that clogged 'ol 2bbl).

In doing the carb install, found that it was easier it slide the alternator down the bracket to get the valve covers back on, and decided a change of the belt was in order.

It looks like the current setup runs not only the alternator, but the W/P as well (one big belt). I've tried looking up diagrams, advice whether this is OK or not, all to no avail. It was my understanding that since I have a two-groove crank and W/P that I should have a separate belt spanning that distance - and then the alternator as well.

Trouble is - can't find a size for this W/P to Crank belt, nor (as embarrassing as it is to admit it) any info on how to get it over the water pump and crank pulley. Are there any adjusting bolts on either to release tension? I know I'm not meant to pry it over the grooves (once I do find a belt to fit) but I can't figure any other way to get it on while retaining proper tension.

In short, need to know how my V-belt(s) should be set up w/ only an alternator and water pump, on a two-groove crank and w/p pulley system.

No A/C or P/S, so it shouldn't be this hard...

Thanks guys!

SeeTen · 09-15-2012, 12:28 AM

Nobody? Anyone know if a crank - water pump - alternator single v belt is OK on a SBC?

geezer#99 · 09-15-2012, 01:03 AM

Yes it's OK. It's the normal set up.
Is your altenator mounted on the drivers side or the passenger side?
A pic would really help!

SeeTen · 09-15-2012, 01:05 AM

Thanks! I'm trying to get it on first thing tomorrow, since it's driveable and all...

It's on the driver side. Am I to assume the other free grooves are for an optional A/C and P/S?

geezer#99 · 09-15-2012, 01:19 AM

Quote:

Originally Posted by SeeTen

Thanks! I'm trying to get it on first thing tomorrow, since it's driveable and all...

It's on the driver side. Am I to assume the other free grooves are for an optional A/C and P/S?

That is correct.

SeeTen · 09-15-2012, 01:54 AM

Thanks so much! Appreciate it guys! Pics coming soon...

68shortfleet · 09-15-2012, 01:08 AM

The alternator belt is a long belt that goes around the crank, water pump and the alternator.

09-14-2012, 09:42 PM	#1
SeeTen Registered User Join Date: May 2012 Location: Southern Cal. Posts: 39	V belt issues and install Hey all! My brother and I are working on a '69 C10 with a Factory Crate 307. (Pictures coming soon, but I haven't found the time... too much to do). To date, we've done full suspension (PO thought it would be a good idea to heat the springs. The 40 YEAR OLD springs), a few other random things, and most recently the intake manifold and carb (to get rid of that clogged 'ol 2bbl). In doing the carb install, found that it was easier it slide the alternator down the bracket to get the valve covers back on, and decided a change of the belt was in order. It looks like the current setup runs not only the alternator, but the W/P as well (one big belt). I've tried looking up diagrams, advice whether this is OK or not, all to no avail. It was my understanding that since I have a two-groove crank and W/P that I should have a separate belt spanning that distance - and then the alternator as well. Trouble is - can't find a size for this W/P to Crank belt, nor (as embarrassing as it is to admit it) any info on how to get it over the water pump and crank pulley. Are there any adjusting bolts on either to release tension? I know I'm not meant to pry it over the grooves (once I do find a belt to fit) but I can't figure any other way to get it on while retaining proper tension. In short, need to know how my V-belt(s) should be set up w/ only an alternator and water pump, on a two-groove crank and w/p pulley system. No A/C or P/S, so it shouldn't be this hard... Thanks guys!

09-15-2012, 12:28 AM	#2
SeeTen Registered User Join Date: May 2012 Location: Southern Cal. Posts: 39	Re: V belt issues and install Nobody? Anyone know if a crank - water pump - alternator single v belt is OK on a SBC?

09-15-2012, 01:03 AM	#3
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,715	Re: V belt issues and install Yes it's OK. It's the normal set up. Is your altenator mounted on the drivers side or the passenger side? A pic would really help!

09-15-2012, 01:05 AM	#4
SeeTen Registered User Join Date: May 2012 Location: Southern Cal. Posts: 39	Re: V belt issues and install Thanks! I'm trying to get it on first thing tomorrow, since it's driveable and all... It's on the driver side. Am I to assume the other free grooves are for an optional A/C and P/S?

09-15-2012, 01:54 AM	#6
SeeTen Registered User Join Date: May 2012 Location: Southern Cal. Posts: 39	Re: V belt issues and install Thanks so much! Appreciate it guys! Pics coming soon...

09-15-2012, 01:08 AM	#7
68shortfleet Registered User Join Date: Oct 2006 Location: Dundee, Oregon Posts: 311	Re: V belt issues and install The alternator belt is a long belt that goes around the crank, water pump and the alternator.



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