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'70 LT1 Fan Belts

Chuck53

Member
Joined
Feb 26, 2006
Messages
6
Location
The Republic of Texas
Corvette
1962; 1966; 1966 GS Replica racer;1970 LT1
I'm putting my 1970 LT1 together and I have a question regarding the fan belts. I can figure out the alternator and smog pump belts and brackets. It seems the middle pulley belt on the water pump runs from the crank pulley to the water pump pulley. If so there does not seem to be a way to tension the belt. Do you just strong arm it into position; or, take the pulley off the water pump, position the belt and lever it onto the pump hub? I don't know, maybe the center groove doesn't have a belt.;help

Any pics would be a great help. Thanks.
 

Wayne robson

Well-known member
Joined
Feb 24, 2007
Messages
169
Location
australia
Corvette
sold my last corvette.
may help

Hi chuck, i dont own a 70, but im sure you would not strong arm it into position, nearly all cars the adjustment is from power steering, alternator, or smog pump, so dont assume its a small belt, you may require a longer belt, to extend to one of the above items, so you can adjust it . regards wayne.
 

Vettehead Mikey

Well-known member
Joined
Aug 26, 2003
Messages
3,486
Location
Not that far from Ottawa
Corvette
1973 Coupe
Not 100% sure, but I believe the belt in question should go in the rearmost groove, not the middle one.

It's usually easiest to remove the water pump pulley just enough to get the belt in place. :beer
 

6880 Mike

Well-known member
Joined
Jun 30, 2006
Messages
2,723
Location
The Bluegrass State
Corvette
1968 convertible; 1980 L-82
Got the AIM? The AIM has diagrams of all the belt routings. You will want the LT-1 option scenario.

:)
 

6880 Mike

Well-known member
Joined
Jun 30, 2006
Messages
2,723
Location
The Bluegrass State
Corvette
1968 convertible; 1980 L-82
AIM? Uh, is that the assembly manual? No, can you advise where to get one?

Assembly Instruction Manual. All the Corvette vendors carry the AIMs. NCRS has them. You can even get them off eBay. Best deals include a three-ring binder. (AIM pages are punched for three-ring binders.) Pick your favorite vendor and order one.

:)
 

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