problem with the belts and pullies on my swapped in 351c

[DarkoStoj]

I need to figure out how I'm going to run the belt in my car. I have a 70 351c and I'm only running an alternator (no ps pump, a/c).

This is the way the motor is setup now

its not my motor, but as you can see I'm not running a ps pump, so I don't have anything to run the water pump off. I'm thinking the only choice I have is to get another pully for the water pump so I can run the alternator and waterpump off the crank, but have no idea where I could even find something like that.

Anyone have any ideas?

 

[67efivert]

im sure stock pullies are out there but i used the stock lower pulley and a set of motorsport pullies for a 302 the water pump and alt lined up perfectally

 

[dodgestang]

Might be a little hard to see...however....March Underdrive pulley set works in this application

I just run a crank, water pump, and alt pulley. If you don't want to use under drives I could prob dig around the crates and sell you the sigle groove water pump pulley I was using before. PS - don't pay attention to close to the brackets...the car didn't originally have the correct brackets to hold the alternator but the top pic shows it all with the stock brackets (the lower one is incorrectly bolted up)

 

[Opentracker]

I got mine off of an early Mustang with a dual belt drive, we use only the forward groove. We run a C in our '65 coup with only an alt. The early pully for the water pump is all you need.

John

 

[DarkoStoj]

by any chance did the clevelands come with a long and short water pump? If they had a longer water pump I would be able to use the pully I have and not waste time searching for a stupid pully at the bone yard.

 

[grego37]

When you call around for pulleys, most companies are going to ask what your offset measurement is.

If you remove your crank pulley and water pump pulley, and take a straight edge (metal ruler on its side) and sit it against the waterpump flange (where the pulley would bolt up, then measure the distance from that edge to the front mounting face of the balancer with a measuring tape. This is your offset measurement.
Pulley companies:
March Performance
Billet specialties
Zoops
Jones Racing Products
Hotrodlane.com
If you find something thats close , but a little off, pulleys can be shimmed so that the v-grooves are centered with each other.
Personally, I wouldnt run underdrive pulleys on a street car. for best cooling rusults you want to overdrive the water pump on a street car. That means the waterpump pulley is smaller dia. than the crank pulley.

 

[351LX]

I am running just an alternator on my Cleveland.I got my pullies off a Maverick at the wreckers without power steering.

 

[DarkoStoj]

just got back from the bone yard and picked one that looked similar to the one I needed, but nooooooo it was too big and hit the crank pully.

The search continues.

 

[D.Hearne]

The only shorter pulley I have is from a 390 and it's diameter is 1/8" larger and the offset is 1/2" shorter than the three Cleveland pulleys I have.

 

[DarkoStoj]

ive been to 3 junkyards today and havent even been able to find anything that comes close. I'm going nuts over here and frustrated as hell trying to figure this out.

Is it possible that the manual steering clevelands had a different alternator bracket that moved the alternator back instead of another pully?

 

[grego37]

does your crank pulley hyave 2 grooves?

 

[DarkoStoj]

AHHHHHHHHHHHHhhhhh another 3 hours at a stupid junk yard and no luck!!!

I'm about to sell the stupid car I'm so fedup with it.

does your crank pulley hyave 2 grooves?

my crank pully has 3 grooves.

 

[grego37]

nevermind the alternator for now.

if you bolt up the waterpump pulley you have now, will it's groove line up with any of the three of the crank pulley?

 

[DarkoStoj]

here is a pic of my motor

the water pump lines up with the first groove on the crank, and the alternator lines up with the 2nd groove on the crank. Everything would work if I had a ps pump, but I'm running manual steering so there is nothing to run the water pump since it used to run off the powersteering pump.

 

[grego37]

hmmm?

 

[DarkoStoj]

A picture tells a thousand words.
All you have to do is run 2 belts.

one belt from the crank pulley to the waterpump pulley in the back groove.

and a second belt from the 2nd groove of the crank pulley to the alternator.

and your done.

thats what I thought too, but how would you tighten/loosen the belt if it went straight from the water pump to the crank?

 

[Hack]

I bought a 2-groove wp pulley from CJ Pony Parts for a 351C without power steering. It was part number CAA7126. They get $50 for it. A lot of cash, but worth it if it solves the problem.

The thing is, I don't have the pulley on a motor, so I don't know if it fits correctly or not. The pulley has two grooves in it. I think one can be used for this application. If you want to tell me what offset you need between the wp mounting surface and the pulley groove, I'll check my pulley and tell you if it matches up.

 

[351LX]

The Maverick pullies that I used had a different offset on the waterpump so it placed the belt closer to the front of the motor so the alternator belt would clear the bracket and the crank pulley was smaller so it cleared the water pump pulley.I guess since the crank pulley is smaller I am underdriving everything a bit but it seems to work fine.

 

[grego37]

how about this.

keep the upper and lower pulleys.
and move the alternator back to where its groove lines up with the other grooves orf the other pulleys.

You would just need to shorten the alternator spacer and either bend or fab. a new front alt. bracket.
The difference from groove to groove on your crank pulley is usually around 3/4"

 

[D.Hearne]

how about this.

keep the upper and lower pulleys.
and move the alternator back to where its groove lines up with the other grooves orf the other pulleys.

You would just need to shorten the alternator spacer and either bend or fab. a new front alt. bracket.
The difference from groove to groove on your crank pulley is usually around 3/4"

I think that if he does that, it's going to interfer with the dipstick. It's worth a try though. It would also help to use a shorter pulley, such as the 390 one I have, but it needs to be the same diameter or a little smaller to clear the crank I think. I also had a small block pulley but it used a smaller V belt, I don't think it would have worked well.