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The WP pulley appears to be the deep groove variety while the crank pulley looks to be the standard groove variety. That is significant.
The groove spacing on the two types are different and it's impossible to make both belts align correctly. If my eyes are not playing tricks on me, the two belts appear to be closer together as they wrap around the crank pulley than they are as they wrap around the WP pulley.
Norm, are these the pulleys advertised as having both come off the same engine?
I installed the belts, and yes there is a variance. The top measures .20", bottom is .16", .040 difference, less than 1/16". Is that going to make it unusable?
BTW, using a straight nipple puts my heater hose in a kink. Does anyone know where I can get this connector with a 45 deg. nipple? I've seen pics of it but can't find it again.
That's what the seller said. Double groove water pump (#3790356CH) and 2 piece 3 groove crank pulley (#3744043BA-3751232GM)? I didn't install the 3751232GM.
Norm,
The "356" WP pulley is the one I recommended earlier. The "232" pulley is what you'd want if you were adding PS; you might want to hang on to it for a while.
I don't know what the "043" pulley is. It's not a Corvette pulley or perhaps it supersedes the pulley which matches the "356" WP pulley. Either way, it's not in my 1971 P&A book.
Regardless, my eye still says the pulleys don't all match up properly.
BTW, using a straight nipple puts my heater hose in a kink. Does anyone know where I can get this connector with a 45 deg. nipple? I've seen pics of it but can't find it again.
BTW, using a straight nipple puts my heater hose in a kink. Does anyone know where I can get this connector with a 45 deg. nipple? I've seen pics of it but can't find it again.
The "356" WP pulley is the one I recommended earlier. The "232" pulley is what you'd want if you were adding PS; you might want to hang on to it for a while.
I don't know what the "043" pulley is. It's not a Corvette pulley or perhaps it supersedes the pulley which matches the "356" WP pulley. Either way, it's not in my 1971 P&A book.
Regardless, my eye still says the pulleys don't all match up properly.
Jim
I don't understand. The link you sent me, crank pulley 250/300 hp, is an "043" pulley according to CC and that number is stamped on the pulley I have. The WP pulley is also stamped 356.
I don't understand. The link you sent me, crank pulley 250/300 hp, is an "043" pulley according to CC and that number is stamped on the pulley I have. The WP pulley is also stamped 356.
Neither do I. I recommended the correct parts and the CC part numbers are correct. Yet the two belts clearly don't run parallel to each other.
I suppose one of those pulleys was made incorrectly but I don't know which one without holding them in my hands and comparing them to known good pulleys.
So the question becomes what to do? The most pragmatic answer is "nothing". Run them like they are and see if you notice any problems..... belts being thrown off, rapid belt wear, etc....
Neither do I. I recommended the correct parts and the CC part numbers are correct. Yet the two belts clearly don't run parallel to each other.
I suppose one of those pulleys was made incorrectly but I don't know which one without holding them in my hands and comparing them to known good pulleys.
So the question becomes what to do? The most pragmatic answer is "nothing". Run them like they are and see if you notice any problems..... belts being thrown off, rapid belt wear, etc....
Jim
I can't imagine .04 making any difference since there is more play than that on things running off those pulleys, but who knows! Thanks for all your help on this, I certainly appreciate it!
Got everything installed, had to not only use the .25" spacer on my crank pulley, but had to add .10" washers also. The thing I feared most about doing this was the WP leaking around the motor mount. It looks great, nice & tight. Had a small leak at the heater hose fitting but think that's resolved. Alternator seems fine, reved to 4K and the belt stayed on.
There is a very short shrieking noise when the engine starts I can't figure out. Not there when I disconnect the alt belt.
Today I'm installing the compressor belt and see how that goes. No power to the compressor yet.
Alternator seems fine, reved to 4K and the belt stayed on. There is a very short shrieking noise when the engine starts I can't figure out. Not there when I disconnect the alt belt.
Just to wrap up this thread, everything is running great. Belts are not showing abnormal wear and they're staying on. Got about 100 miles on it, no leaks. Thanks to everyone for helping on this, I'm very satisfied with the results.
Also, thanks to Hilltop Classic for the tip about that fuel pump push rod bolt, that's where most of my leak was coming from. Glad I wasn't able to remove the balancer!
Just to wrap up this thread, everything is running great. Belts are not showing abnormal wear and they're staying on. Got about 100 miles on it, no leaks. Thanks to everyone for helping on this, I'm very satisfied with the results.
Also, thanks to Hilltop Classic for the tip about that fuel pump push rod bolt, that's where most of my leak was coming from. Glad I wasn't able to remove the balancer!
You're not the first one to have that fuel pump push rod hole leak and won't be the last, glad that helped out and your belts are tracking well.
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I can't imagine .04 making any difference since there is more play than that on things running off those pulleys, but who knows! Thanks for all your help on this, I certainly appreciate it!
