Help!! Belt Install
Thread Starter
Melting Slicks
Joined: Mar 2006
Posts: 3,456
Likes: 102
From: Piedmont Va
St. Jude Donor '11-'12-'13,'19-'20
Help!! Belt Install
Hey all, long time no talk to. I got a no A/C no PS car with the shorty water pump belt. Anyone got any tricks for getting a brand new one on? I'm thinking of taking the plugs out so I can turn the motor over by hand and try and track it on that way. Any other idea's?
As always thanks in advance.
As always thanks in advance.
Racer
Joined: Jun 2005
Posts: 400
Likes: 11
From: Lubbock Texas
Did this just the yesterday. If you can get the belt started on about the first third of the pulley on the pass side of the pulley then you can bump the engine over & it should go in.
On my car the a/c has been temp. removed so I decided to run a belt just from the crank to the w/p seeing as if the alt belt failed I'd loose my water pump also, not a good thing. Guess what, yesterday about ten miles from my house I threw the alt belt, had I not had the other belt I would have been stranded. Had pleanty of battery to get home. So glad I did that.
BTW what size belt are you using there? I had to just trial & error & the one I have is a little tight.
Thanks
On my car the a/c has been temp. removed so I decided to run a belt just from the crank to the w/p seeing as if the alt belt failed I'd loose my water pump also, not a good thing. Guess what, yesterday about ten miles from my house I threw the alt belt, had I not had the other belt I would have been stranded. Had pleanty of battery to get home. So glad I did that.
BTW what size belt are you using there? I had to just trial & error & the one I have is a little tight.
Thanks
Thread Starter
Melting Slicks
Joined: Mar 2006
Posts: 3,456
Likes: 102
From: Piedmont Va
St. Jude Donor '11-'12-'13,'19-'20
Thanks. The new belt is NAPA 25-7320. It was the closest they had that would size match the original but does seema tad bit smaller. I will try the bumpover trick tomorrow. Need to connect the battery. That does seem a lot easier that trying to crank it by hand. 
Instructor
Joined: Jul 2000
Posts: 239
Likes: 5
From: Rochester NY
If you are talking about the belt that runs between crank pulley to the water pump pulley only, NO DON'T DO THAT.....
Remove the 4 nuts holding the fanclutch on then remove fan, all you have is the water pump pulley left, slide it off the water pump studs, install new belt on crank pulley and next put the belt on the water pump pulley, next slide the water pump pulley with the new belt on onto the water pump studs, it takes a little bit of fideling to get it on and next install fan clutch and the 4 nuts back on you are done.....
Ulf
Remove the 4 nuts holding the fanclutch on then remove fan, all you have is the water pump pulley left, slide it off the water pump studs, install new belt on crank pulley and next put the belt on the water pump pulley, next slide the water pump pulley with the new belt on onto the water pump studs, it takes a little bit of fideling to get it on and next install fan clutch and the 4 nuts back on you are done.....
Ulf
Burning Brakes
Joined: Jan 2006
Posts: 1,223
Likes: 174
From: Fort Wayne IN
Thread Starter
Melting Slicks
Joined: Mar 2006
Posts: 3,456
Likes: 102
From: Piedmont Va
St. Jude Donor '11-'12-'13,'19-'20
If you are talking about the belt that runs between crank pulley to the water pump pulley only, NO DON'T DO THAT.....
Remove the 4 nuts holding the fanclutch on then remove fan, all you have is the water pump pulley left, slide it off the water pump studs, install new belt on crank pulley and next put the belt on the water pump pulley, next slide the water pump pulley with the new belt on onto the water pump studs, it takes a little bit of fideling to get it on and next install fan clutch and the 4 nuts back on you are done.....
Ulf
Remove the 4 nuts holding the fanclutch on then remove fan, all you have is the water pump pulley left, slide it off the water pump studs, install new belt on crank pulley and next put the belt on the water pump pulley, next slide the water pump pulley with the new belt on onto the water pump studs, it takes a little bit of fideling to get it on and next install fan clutch and the 4 nuts back on you are done.....
Ulf
peace
Racer
Joined: Jun 2005
Posts: 400
Likes: 11
From: Lubbock Texas
I could'nt get mine to go that way either, so I had to use the "bumping method. Done it several times & hasent seemed to have any bad effects.
Bluthundr-- I just added that belt recently & like I said above it saved my butt the other day. Lose your alternator you are still good for a little while, lose your water pump & you are dead in the water. I'll post the number on the belt in a bit. I think it is a little too tight, but it is the closest I could come up with.
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Race Director
Joined: Mar 2006
Posts: 14,112
Likes: 28
From: Florida
25-7340 = 34 5/8"
In between sizes available in many sizes too, use the last number:
25-7324 = 32 3/4"
You may need them. 1/2 can make a world of difference sometimes.
Burning Brakes
Joined: Jan 2006
Posts: 1,223
Likes: 174
From: Fort Wayne IN
According to my quick NAPA recon,
25-7350 is 35"
25-7340 is 34"
25-7330 is 33"
25-7320 is 32"
This is just from www.napaonline.com, your mileage may vary
25-7350 is 35"
25-7340 is 34"
25-7330 is 33"
25-7320 is 32"
This is just from www.napaonline.com, your mileage may vary
Race Director
Joined: Mar 2006
Posts: 14,112
Likes: 28
From: Florida
According to my quick NAPA recon,
25-7350 is 35"
25-7340 is 34"
25-7330 is 33"
25-7320 is 32"
This is just from www.napaonline.com, your mileage may vary
25-7350 is 35"
25-7340 is 34"
25-7330 is 33"
25-7320 is 32"
This is just from www.napaonline.com, your mileage may vary
http://www.napaaircompressors.com/do...IDE_FORWEB.pdf
I find that odd too, as most numbers ending in a "0" would be an even number. But there it is in B&W.
Instructor
Joined: Jul 2000
Posts: 239
Likes: 5
From: Rochester NY
dosoctaves,
First of all it should not be that hard to install that water pump pulley with the right belt, as far as forcing the belt over the pulley I'm afraid it could distort / bend a pulley, maybe not who knows also you could damage the cords in the belt.
Here is the belt I'm using on my 76 Vette:
"Gates Belt GAT 7325" (water pump to crank pulley).
"Gates Belt GAT 7525" (Altenator, water pump and crank pulley).
"Gates Belt GAT 7360" (Power steering to crank pulley).
It also says on my receipt for all 3 belts "Automotive XL V - Belt"
I hope this will help you guys...
Ulf
First of all it should not be that hard to install that water pump pulley with the right belt, as far as forcing the belt over the pulley I'm afraid it could distort / bend a pulley, maybe not who knows also you could damage the cords in the belt.
Here is the belt I'm using on my 76 Vette:
"Gates Belt GAT 7325" (water pump to crank pulley).
"Gates Belt GAT 7525" (Altenator, water pump and crank pulley).
"Gates Belt GAT 7360" (Power steering to crank pulley).
It also says on my receipt for all 3 belts "Automotive XL V - Belt"
I hope this will help you guys...
Ulf
Thread Starter
Melting Slicks
Joined: Mar 2006
Posts: 3,456
Likes: 102
From: Piedmont Va
St. Jude Donor '11-'12-'13,'19-'20
Thanks for all the info guy's,
Here is the outcome. When I tried the bump method, it went on but twisted under the crank pulley and would not work itself back out. So I took off the fan and WP pulley, and removed the two upper most fan studs. I as then able to coax the pulley onto the the two bottom studs enough to get nuts started on them. Then used a ratchet wrench alternating nuts. The pulley seated right up into place and then I reinstalled the upper studs and fan. Took no more than 10 mins. (Duh).
The 25-7320 actually fit's quite nicely on the water pump. The 7530 I got for the alternator however is a tad too big. Thanks for the Napa chart Noonie. Looks like 7520 for the alternator.
Agains, thanks for all the reply's.
Here is the outcome. When I tried the bump method, it went on but twisted under the crank pulley and would not work itself back out. So I took off the fan and WP pulley, and removed the two upper most fan studs. I as then able to coax the pulley onto the the two bottom studs enough to get nuts started on them. Then used a ratchet wrench alternating nuts. The pulley seated right up into place and then I reinstalled the upper studs and fan. Took no more than 10 mins. (Duh).
The 25-7320 actually fit's quite nicely on the water pump. The 7530 I got for the alternator however is a tad too big. Thanks for the Napa chart Noonie. Looks like 7520 for the alternator.
Agains, thanks for all the reply's.
