Re: belt squeel
[Re: gtx6970]
#1037664
07/21/11 07:57 PM
07/21/11 07:57 PM
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Joined: Dec 2004
Posts: 801 central CT
cudazappa
super stock
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super stock
Joined: Dec 2004
Posts: 801
central CT
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How old are the pulley's on the crank and alt?
I just went through this on my 318 Challenger. Turned out the water pump pulley had glazed! Sandblasted and painted it and the noise has gone (along with a new belt!). Spent a lot of money before I finally figured it out!
1971 Challenger
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Re: belt squeel
[Re: can.al]
#1037665
07/21/11 09:41 PM
07/21/11 09:41 PM
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Joined: Jun 2003
Posts: 21,489 It's a dry heat
gtx6970
OP
Too Many Posts
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OP
Too Many Posts
Joined: Jun 2003
Posts: 21,489
It's a dry heat
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Quote:
is your battery overcharging
No , charging system seems normal
Pulleys are all new, ( repops from bouchillon)and are powdercoated right out of the box.
It has one of the power master alternators on it and the pulley was to narrow for a factory belt. BTW , I had this problem with the alternator with it's aftermkt pulley . So I pulled the alt off and replaced the pulley with an original from a used original alt I had laying around, Another new belt was put on at this time in case the 1st one was glazed.
pulley alignment is dead on best I can tell. The a/c is not charged and the compressor does not engage so the compressor clutch pulley is just free wheeling and I can spin said pulley by hand with no belt on it. So I don't think it's causing any parasisic drag on the belt, same thing on the alternator pulley.
The compressor mounts very similar to an original B/RB location and the spacing between the alternator and compressor are very close to OE stock.
I'm baffled, as there is no way 2 belts can be installed like an OE setup.( lower crank pulley is not capable of it )
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Re: belt squeel
[Re: dOc !]
#1037667
07/21/11 10:24 PM
07/21/11 10:24 PM
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Joined: Jun 2003
Posts: 21,489 It's a dry heat
gtx6970
OP
Too Many Posts
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OP
Too Many Posts
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Posts: 21,489
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Quote:
POWDERcoated in the V-slot ? ... tooooo slick ...IMO.
I had thought about that, but the pulleys are done in a flat black and are not superslick like gloss back would be ,,,,,so I dont't ''''''think''''' that is it
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Re: belt squeel
[Re: dOc !]
#1037671
07/21/11 10:40 PM
07/21/11 10:40 PM
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Joined: Dec 2007
Posts: 18,157 Mass
DAYCLONA
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 18,157
Mass
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Quote:
I will BET if you ruffed-up those slots with some sandpaper .. then prob would go-away.
......Bill I'd have to agree with the DoCToR, as I've had the same problems of squeal with pulleys that were chromed plated,...the powder coating is probally too resistant to abrasion from the belt, so the belt can't bite, no matter how tight you tension it,....the AC pulleys, are they clear powder coated as well?.....try belt dressing first, if the squeal goes away,...sand/abrade the pulley grooves, new belt
Mike
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Re: belt squeel
[Re: gtx6970]
#1037672
07/21/11 10:50 PM
07/21/11 10:50 PM
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Joined: Jan 2007
Posts: 7,664 IN
ahy
master
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master
Joined: Jan 2007
Posts: 7,664
IN
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Quote:
Quote:
is your battery overcharging
No , charging system seems normal
Pulleys are all new, ( repops from bouchillon)and are powdercoated right out of the box.
It has one of the power master alternators on it and the pulley was to narrow for a factory belt. BTW , I had this problem with the alternator with it's aftermkt pulley . So I pulled the alt off and replaced the pulley with an original from a used original alt I had laying around, Another new belt was put on at this time in case the 1st one was glazed.
pulley alignment is dead on best I can tell. The a/c is not charged and the compressor does not engage so the compressor clutch pulley is just free wheeling and I can spin said pulley by hand with no belt on it. So I don't think it's causing any parasisic drag on the belt, same thing on the alternator pulley.
The compressor mounts very similar to an original B/RB location and the spacing between the alternator and compressor are very close to OE stock.
I'm baffled, as there is no way 2 belts can be installed like an OE setup.( lower crank pulley is not capable of it )
I'd go ahead and get a 4 groove crank pulley and run two belts. The basic setup is designed for it and you will have a lot more load when the AC gets going. I have the same basic setup with Bouchillon mounts and the AC/alternator belt has been trouble free with two belts.
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Re: belt squeel
[Re: LXIXcharger]
#1037675
07/22/11 04:25 PM
07/22/11 04:25 PM
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Joined: Jan 2003
Posts: 10,757 North Dakota
6PakBee
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,757
North Dakota
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This may not apply but when we had 'chirping' belts, we'd always put just a bit of door ease stick lubricant on the sides and the noise went away.
"We live in a time when intelligent people are being silenced so that stupid people won't be offended".
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Re: belt squeel
[Re: 62maxwgn]
#1037677
07/23/11 10:49 AM
07/23/11 10:49 AM
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Joined: Jun 2003
Posts: 21,489 It's a dry heat
gtx6970
OP
Too Many Posts
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OP
Too Many Posts
Joined: Jun 2003
Posts: 21,489
It's a dry heat
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I would like to run a 2 groove belt setup on the a/c ,BUT, The pulley arrangement and pulley depth will not allow it. It has the 4 groove lower pulley and starting at groove closest to the balancer going forward. Stock thick hemi balancer the rear most slot is empty( nothing lines up with it) 2nd one runs the a/c and alternator belt. 3rd one runs the power steering ( and is slighty smaller in OD versus the 2 rear most grooves of the pulley ) 4th ( and the most forward one - is empty- nothing lines up with it either) power steering pump location prohibites running 2 belts on the a/c system. Short of making special brackets and spacers to essentially move the power steeering pump forward to use a different lower pulley groove. Then I have the problem of the smaller OD of the pulley to deal with. going to try the sand the pulleys trick this weekend
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Re: belt squeel
[Re: gtx6970]
#1037678
07/23/11 05:16 PM
07/23/11 05:16 PM
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Joined: Jan 2003
Posts: 9,436 Blair County,PA
62maxwgn
master
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master
Joined: Jan 2003
Posts: 9,436
Blair County,PA
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Bill, I have since changed the pump since that picture,now running same pump as you show.On the 4 groove crank pulley,from front to back,power steering pump and water pump,middle two alternator and compressor,back is empty.I also have the 2 groove Bouchillon water pump pulley,everything lines up perfectly.It may be the thickness of the damper that is throwing things off.Your second picture looks exactly like what I have now.
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Re: belt squeel
[Re: 62maxwgn]
#1037679
07/25/11 10:55 AM
07/25/11 10:55 AM
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Joined: Aug 2005
Posts: 4,799 ILL
MLR426
master
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master
Joined: Aug 2005
Posts: 4,799
ILL
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Quote:
Bill, I have just about the same set up,4 groove bottom pully and no problems.
The 440/383 uses a different bracket set up than hemi and you can run 2 belts on that set up compressor with no issues. I'll explain what I have been through on a hemi.
Guys this is long winded but it's the only way I can tell the masses of people on moparts what I did with mine.
My goal was to make the compressor appear as though it belonged and did'nt look out of place when looking at the engine. My set up is the same as Bill's so I it would fit up under the shaker base on my cuda convertible. I milled off all the unused mounting lugs off the compressor and shaped the lug areas to appear like part of the main case, then I removed the twin pulley and blackened it and the attaching hardware. Next I glass beaded the aluminum case and sprayed it semi-gloss black and re-install the twin pulley. I also blackened at the bracket hardware. I used a 4 groove big block pulley with a thin B/RB damper. With this pulley you will also use the 2nd and 3rd pulley for driving belts. For the sake of a cleaner look I chucked up the 4 groove pulley and cut off the 1st pulley nearest to the radiator, this really improves the appearance up front. Next I wanted to retain the correct appearance of using a federal pump on the my hemi their again wanting to make it appear factory. The standard hemi federal pump pulley cannot be used with a thin damper due to the incorrect off set that would cause belt mis-alignment. So I used a small block saginaw (no spoke) pulley which is close to the same diameter of the hemi federal pulley OD. After mounting the crank pulley and steering pump to the engine, I then used a grade 8 bolt to draw or press the steering pump pulley on the spindle and stopping when I had correct alignment on the front crank pulley groove (originally was the 2nd groove). After achieving the correct belt alignment I used loctite to secure the bolt to the pump spindle for the pulley. Now on the alternator I used the correct 2 groove hemi style pulley, again staying with the factory appearance. Water pump pulley is a 2 groove late 70's big block truck only pulley and Bouchillon sells it, it has a different off set then other 2 groove pulleys and is a one of a kind. I as well want to use both pulleys on the compressor for correct appearance and was told by Randy at Bouchillon that the compressor has very low drag and 1 belt is all it needs to turn it. I want 2nd belts, and that's why I did my pulleys the way I did but this is what I ran into. 1 belt on front groove of the alternator then to the 2nd groove on the compressor and then down to the 2nd groove on the crank pulley (was originally 3rd groove) that part was good also because I was able to put the belt on the outer groove of the alternator just like original hemi appearance. Now we go to the 2 belt. 1st groove of compressor then 2nd groove of water pump and then to the 1st groove of the crank pulley was (originally 2nd groove) and then over to the power steering pulley. Now I think I've achieved the best possible look after hours of jigging up etc, etc, etc and it's going to work right (wrong).. It all looks really good except for one major issue, when you start the engine the belt doesn't have enough surface area contact on the water pump pulley causing it it squeel, I tried belt dressing it doesn't work their is just to much drag on the pump trying to circulate the coolant. I had to remove the belt and go to the shorter belt to run the water pump because it allowed more belt surface contact area. It bites but that's the way it is. I need a larger OD water pump pulley that's not made currently with the correct off set and a smaller OD crank pulley that's not made currently so I get more belt surface area contact on water pump pulley to turn the pump with out creating belt squeel. Bill, unless you go to a funky idler system you cannot do both belts on the compressor or with out different water pump and crank pulley OD's.
Something I failed or forgot to mention is the mods I had done to the condenser for a cleaner appearance under the hood. When I had the condenser made, I had them put both INLET and OUTLET on the passenger top corner of the condenser. Why?? because you can now run both inlet and out lines off one side and eliminate the driver side line for a cleaner appearance. Now stainless lines can be made to go across the core support on one side, and also a custom stainless line can be made to go right by the distributor (tight clearance) to the pump. Rick Tyre Blown71X moparts member did a superb, excellent,great job manufacturing and running my lines.
logan426
Last edited by Logan426; 07/28/11 10:27 AM.
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