Alternator upgrade: belts and pulleys
From : bob sneed
Q: help! i have a 1979 b300 with a 2 bbl 360 engine. i want to upgrade the stock 65a single-groove pulley alternator to a high-amp double-pulley alternator and also to upgrade the old york single-groove pulley a/c compressor to a more compact and modern model that has a double pulley. im disappointed that i cannot find anything about belt strategies online after considerable searching! the current belt layout with the single-groove alternator pulley is thus innermost crank alternator water pump middle crank water pump ps pump air pump outermost crank a/c idler pulley my current thinking is that my new layout will involve a eliminating the a/c idler pulley completely and b keeping my current 3-groove crank pulley - and that the new arrangement will end up thus innermost crank alternator a/c water pump middle crank alternator a/c water pump outermost crank ps pump air pump in this arrangement the double-belt path would be tensioned by a very nice billet alternator tensioner ive bought and the ps and air pump belt tensioned by the adjustment of the ps pump. question 1 does anyone have any diagrams or pictures of factory belt layouts for this application question 2 does my plan make sense does it match the arrangement of models that shipped stock with dual-pulley alternators in other words do dual-pulley belt layouts drive off of the same three-groove crank pulleys from the innermost two grooves question 3 assuming this plan makes sense when shifting the ps and air pumps outwards to the outermost pulley slot is it better to a find appropriate stock brackets at the junkyard b make shims as required or c find alternate pulleys with the required alignment or d otherwise thanks in advance for any useful feedback! -- bob .
Replies:
From : christopher thompson
why not a serpintine belt set up heres one after a quick search on jegs.com that may work with your setup. its for a 318/360 engine. this kit is a march kit. http//www.jegs.com/webapp/wcs/stores/servlet/categorydisplaycatalogid=10002&storeid=10001&categoryid=27407&parentcategoryid=10223&langid=-1 -- -chris 05 ctd 99 durango help! i have a 1979 b300 with a 2 bbl 360 engine. i want to upgrade the stock 65a single-groove pulley alternator to a high-amp double-pulley alternator and also to upgrade the old york single-groove pulley a/c compressor to a more compact and modern model that has a double pulley. im disappointed that i cannot find anything about belt strategies online after considerable searching! the current belt layout with the single-groove alternator pulley is thus innermost crank alternator water pump middle crank water pump ps pump air pump outermost crank a/c idler pulley my current thinking is that my new layout will involve a eliminating the a/c idler pulley completely and b keeping my current 3-groove crank pulley - and that the new arrangement will end up thus innermost crank alternator a/c water pump middle crank alternator a/c water pump outermost crank ps pump air pump in this arrangement the double-belt path would be tensioned by a very nice billet alternator tensioner ive bought and the ps and air pump belt tensioned by the adjustment of the ps pump. question 1 does anyone have any diagrams or pictures of factory belt layouts for this application question 2 does my plan make sense does it match the arrangement of models that shipped stock with dual-pulley alternators in other words do dual-pulley belt layouts drive off of the same three-groove crank pulleys from the innermost two grooves question 3 assuming this plan makes sense when shifting the ps and air pumps outwards to the outermost pulley slot is it better to a find appropriate stock brackets at the junkyard b make shims as required or c find alternate pulleys with the required alignment or d otherwise thanks in advance for any useful feedback! -- bob .
From : bob sneed
yeah well thats a possibility - but a bit pricey. it looks like $700+ for the kit that drives the a/c too. these kits do not seem to include the air pump. these beautiful alloy components are a bit much for this old rv. i felt i was splurging when i got the billet alternator mount from summit! if my timing chain replacement and other currently-planned upgrades give the desired results ill probably go ahead with a new a/c system from vintage air add an msd 6 fix the cruise control maybe upgrade the rv aux dc subsystem maybe add a catalyst and probably add a satellite dish. all told its a lot of investment in this particular vehicle and ill need to get the value back in the joy of actually using this old rv we affectionately know as our retro. id be happy to find a place or two to economize! the serpentine proposition is not totally out of the question - but id sure like to hear from someone who has had their eyeballs on a real vintage configuration that includes a high-amp alternator and a/c. thanks! -- bob christopher thompson wrote why not a serpintine belt set up heres one after a quick search on jegs.com that may work with your setup. its for a 318/360 engine. this kit is a march kit. http//www.jegs.com/webapp/wcs/stores/servlet/categorydisplaycatalogid=10002&storeid=10001&categoryid=27407&parentcategoryid=10223&langid=-1 .
From : sqdancerlynn
you are stuck with what you have. the york compressor is an add air not factory air the altinator shouldnt be a problem may require slight spacer mods i dont remember i had the two grouve on my 79 van just use you original belt & leave one grouve unused if you want to fix the cruse-- look for an aftermarket system. does the air work no trash it & get the vintage air system. .
From : bob sneed
sqdancerlynn wrote you are stuck with what you have. im never stuck. confused and frustrated sometimes but never stuck. the york compressor is an add air not factory air correct. cobra added it as part of the rv conversion. it has a double pulley but only one belt. it does not work well so its coming off in any event. the altinator shouldnt be a problem may require slight spacer mods i dont remember i had the two grouve on my 79 van just use you original belt & leave one grouve unused if i put in a 140a alternator i will absolutely want to drive it with both grooves. the compressor proposed by vintage also uses a double pulley and from what ive seen it should have both grooves driven. im not up for living with belt squeal after this job is complete. if you want to fix the cruse-- look for an aftermarket system. yes audiovox - but tha has nothing to do with my belt questions. does the air work no trash it & get the vintage air system. yep as above. cheers -- bob .
From : john kunkel
john thank you! with all the searching ive done im amazed i have not found these folks before! im sure theyll be able to fix me up. ill call them during business hours. still if anyone has a stock double-belt alternator and factory air of a similar vintage id be keen to know if it uses a 3- or 4-groove crank pulley and how the belts line up. thanks again!! -- bob john kunkel wrote help! i have a 1979 b300 with a 2 bbl 360 engine. i want to upgrade the stock 65a single-groove pulley alternator to a high-amp double-pulley alternator and also to upgrade the old york single-groove pulley a/c compressor to a more compact and modern model that has a double pulley. you can probably find everything you need here http//www.bouchillonperformance.com/ .
From : bob sneed
aceman wrote tom lawrence tnloaswpraemnmcien5g@earthlink.net stated which i commented on below nice try... but the qc srt-10 only comes with an automatic. since the op clearly stated he has a 6spd thats only offered in an rc/sb configuration with a 1-piece driveshaft. back to you genius... ok you guys ive learned a bit in the past two weeks and reading both of your posts and appreciate your comments and highlights. - so far this truck and yes the 6 speed only comes in the rc/sb and automatic only in qc has had some issues right off the dealer lot. heres the history so far... keep in mind i know these guys at the dealership and they are doing their best to help me... 1. made the deal and took it on mon two weeks ago after working with the general manager on the deal for about a week. i dont deal with salesmen since i was a car salesmen about 17 years ago and am fully aware of all the backend stuff how it works the hidden monies etc so i go right to the top. fyi for anyone who cares about the price the sticker was $51600. the lease intial cap cost the actual selling price was at $1200 below invoice and the rebate which means i got $1200 out of the holdback which was about $1525.
From : budd cochran mrd150 preciscom spam net
scrounge the auto wrecking yards for small block mopars with the setup you want. then youll have access to all the pulleys brackets etc. youll need. best bet later model diplomats. -- budd cochran john 316-17 ephesians 28-9 our constitution was made only for a moral and religious people. it is wholly inadequate for the government of any other. john adams help! i have a 1979 b300 with a 2 bbl 360 engine. i want to upgrade the stock 65a single-groove pulley alternator to a high-amp double-pulley alternator and also to upgrade the old york single-groove pulley a/c compressor to a more compact and modern model that has a double pulley. im disappointed that i cannot find anything about belt strategies online after considerable searching! the current belt layout with the single-groove alternator pulley is thus innermost crank alternator water pump middle crank water pump ps pump air pump outermost crank a/c idler pulley my current thinking is that my new layout will involve a eliminating the a/c idler pulley completely and b keeping my current 3-groove crank pulley - and that the new arrangement will end up thus innermost crank alternator a/c water pump middle crank alternator a/c water pump outermost crank ps pump air pump in this arrangement the double-belt path would be tensioned by a very nice billet alternator tensioner ive bought and the ps and air pump belt tensioned by the adjustment of the ps pump. question 1 does anyone have any diagrams or pictures of factory belt layouts for this application question 2 does my plan make sense does it match the arrangement of models that shipped stock with dual-pulley alternators in other words do dual-pulley belt layouts drive off of the same three-groove crank pulleys from the innermost two grooves question 3 assuming this plan makes sense when shifting the ps and air pumps outwards to the outermost pulley slot is it better to a find appropriate stock brackets at the junkyard b make shims as required or c find alternate pulleys with the required alignment or d otherwise thanks in advance for any useful feedback! -- bob *** free account sponsored by secureix.com *** *** encrypt your internet usage with a free vpn account from http//www.secureix.com *** .
From : budd cochran mrd150 preciscom spam net
bob check your local wrecking yards for the pulley setup you need on later model smallblocks in cas vans and trucks. you should be able to find them all and if youre lucky an old set of belts with part numbers to help you get as new set. -- budd cochran our constitution was made only for a moral and religious people. it is wholly inadequate for the government of any other. john adams sqdancerlynn wrote you are stuck with what you have. im never stuck. confused and frustrated sometimes but never stuck. the york compressor is an add air not factory air correct. cobra added it as part of the rv conversion. it has a double pulley but only one belt. it does not work well so its coming off in any event. the altinator shouldnt be a problem may require slight spacer mods i dont remember i had the two grouve on my 79 van just use you original belt & leave one grouve unused if i put in a 140a alternator i will absolutely want to drive it with both grooves. the compressor proposed by vintage also uses a double pulley and from what ive seen it should have both grooves driven. im not up for living with belt squeal after this job is complete. if you want to fix the cruse-- look for an aftermarket system. yes audiovox - but tha has nothing to do with my belt questions. does the air work no trash it & get the vintage air system. yep as above. cheers -- bob *** free account sponsored by secureix.com *** *** encrypt your internet usage with a free vpn account from http//www.secureix.com *** .