Help......403 ac ?

olds307 and 403

olds307 and 403

Geezer
Oct 14, 2008
5,057
113
Melville,Saskatchewan
No everything will be turning at the right speed, just a question of belt traction. Unlike underdrive pulleys which cause charging and cooling issues.
 
Bri guy

Bri guy

G-Body Guru
May 18, 2018
580
43
No everything will be turning at the right speed, just a question of belt traction. Unlike underdrive pulleys which cause charging and cooling issues.
Ok. For some reason I thought pulling the pump to 1 side would damage it. I tried looking up a.c. delete pulleys as well, couldn't find a v belt style for olds. Would be nice to have a serpentine belt style but seems like there's alot involved with that trying to make it work.
 
5

500/600

Master Mechanic
Nov 17, 2018
263
63
West Virginia
Ok. For some reason I thought pulling the pump to 1 side would damage it. I tried looking up a.c. delete pulleys as well, couldn't find a v belt style for olds. Would be nice to have a serpentine belt style but seems like there's alot involved with that trying to make it work.
If you can afford serpentine you can afford the right pulleys. Quit making it difficult.
 
olds307 and 403

olds307 and 403

Geezer
Oct 14, 2008
5,057
113
Melville,Saskatchewan
I have know idea why GM did this in the first place. It didn't happen till the G bodies. The Vin 9 cars have the triple bottom pulley.
 
Bri guy

Bri guy

G-Body Guru
May 18, 2018
580
43
Want it to be budget friendly.....
If what I have works, then I will use it. Don't need to spend 500 on a serpentine system. That's why I was gonna throw the a.c. back on. Because I'm ok with that if the squeal goes away.
 
TURNA

TURNA

Geezer
Jul 24, 2009
8,720
113
Socialist NY
I have the 2 pulley crank with no issues
 
69hurstolds

69hurstolds

Comic Book Super Hero
Jan 2, 2006
2,613
113
I have know idea why GM did this in the first place. It didn't happen till the G bodies. The Vin 9 cars have the triple bottom pulley.
Well, kinda. Maybe. 83 and early 84 had double bottom pulley (triple if you count the A.I.R. belt) and triple water pump pulley (with the front one a tad different size for the alternator). The alternator came off the water pump pulley only. In actuality, G47 VIN Y had this system pretty much 82-88 IIRC. See top right picture (LV2 w/C60) below. Since all VIN 9 required C60.



Sometime in January 1984, the H/O got a "new" system which carried on with VIN 9 cars the rest of the way through 87. It had all the water pump pulley sheaves the same size. Now, the alternator belt wrapped around the crank pulley too as well as partially the PS pump. The PS pump got a new 2 groove pulley. So the bottom pulley got 3 grooves (4 if you count the A.I.R. pump pulley extension).
 
TURNA

TURNA

Geezer
Jul 24, 2009
8,720
113
Socialist NY
Mines an 86 with the 2 pulley crank
 

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