'76 V Belt Problem
Thread Starter
Racer
Joined: Dec 2005
Posts: 368
Likes: 4
From: . New Zealand
'76 V Belt Problem
Can anyone help with a problem I have been having with wearing out V belts on a '76 350 SBC with the Heavy Duty Radiator and Fan Option, with the AC unit removed. I understand that a single V belt will struggle to drive the HD Fan, because of the deleted AC drive belt.
What I want to do is reinstate the drive belt without fitting the AC unit, which I don't have or any of the brackets.
Any good ideas would be appreciated, although I don't want to loose the HD fan.
What I want to do is reinstate the drive belt without fitting the AC unit, which I don't have or any of the brackets.
Any good ideas would be appreciated, although I don't want to loose the HD fan.
Le Mans Master
Joined: Dec 2007
Posts: 6,422
Likes: 591
From: McHenry Illinois
In addition to your existing belts, you can use a short belt from the fan to crankshaft pulleys.
http://forums.corvetteforum.com/c3-g...-question.html
http://forums.corvetteforum.com/c3-g...-question.html
Thread Starter
Racer
Joined: Dec 2005
Posts: 368
Likes: 4
From: . New Zealand
Well, I resolved this by putting a short belt direct from bottom pulley to fan drive pulley, it was a Gates 7340, I got it on by starting it on the bottom groove and getting it started on the top pulley. I then bumped it with the starter which put it onto the top pulley. It feels quite tight at present, but I think with use, it will slacken off.
It's good to be able to rev the engine without a squeal.
It's good to be able to rev the engine without a squeal.
Racer
Joined: Oct 2007
Posts: 270
Likes: 0
From: Chapel Hill NC
So I see folks are using either V-Belts (smooth surface against the pulley?) or Cog belts (cogs against the smooth pulley).
So, is either one acceptable?
Also, I am seeing reference to a Gates 7340 or a NAPA 7320.
(DAYCO equivalent 15340 or 15320)
I think the "320" or "340" refers to 32" and 34" respectively.
I guess I will get one of each and see what fits best.
I too, have the "quick squeal" when rev'ing.
So, is either one acceptable?
Also, I am seeing reference to a Gates 7340 or a NAPA 7320.
(DAYCO equivalent 15340 or 15320)
I think the "320" or "340" refers to 32" and 34" respectively.
I guess I will get one of each and see what fits best.
I too, have the "quick squeal" when rev'ing.
