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Squeaking belts on '61 Deville

Started by ZGJim, April 27, 2024, 03:05:12 PM

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ZGJim

The belts on my non-AC Deville squeak loudly when they get warmed up.  Have tried belt dressing and cleaning the inside of the pulleys with emery paper and scotchbrite. No improvement.  The belts are new and correct according to the listing at O'Reilly's.  The belts are the notched style. Gates belts #7550 and 7575.
Has anyone found a cure for this problem?

Thanks,
Jim Leach
'61 coupe DeVille
#35135

Cadillac Jack 82

Chalk.  Rub a piece of white chalk against the belt while running.  Problem solved.
Tim

CLC Member #30850

1959 Cadillac CDV "Shelley"
1964 Cadillac SDV "Rosalie"
1966 Oldsmobile Toronado "Sienna"

Past Cars

1937 LaSalle Cpe
1940 Chevrolet Cpe
1941 Ford 11Y
1954 Buick 48D
1955 Cadillac CDV
1955 Packard Clipper
1957 Cadillac Series 62
1962 VW Bug
1962 Dodge 880
1966 Mercury Montclair
1967 Buick Wildcat Convertible
1968 Chevy Chevelle SS
1968 Plymouth Barracuda
1977 Lincoln MKV

Big Fins

I'm going to say tension isn't tight enough, or...the driven item, IE: water pump, P/S pump, generator is binding more than it should. Remove the belts and manually spin the driven items feeling the amount of effort needed. It is minimal on all of these. They should easily spin a few revolutions after you spin them by hand. Even the generator fully loaded at 35 amps shouldn't make a belt squeal that at the proper tension.
Current:
1976 Eldorado Convertible in Crystal Blue FireMist with white interior and top. (Misty Blue

Past and much missed:
1977 Brougham de Elegance
1976 Eldorado Convertible
1972 Fleetwood Brougham
1971 Sedan de Ville
1970 de Ville Convertible
1969 Fleetwood Brougham
1969 Sedan de Ville
1959 Sedan deVille

Jon S

These notched belts suck and look ugly. I use bar soap on the belt with the engine off. I suspect one of your belts needs a little more tensioning.
Jon

1958 Cadillac Sedan De Ville
1973 Lincoln Continental Coupe
1981 Corvette
2004 Mustang GT

bcroe

The gen pulley can tend to slip after starting,
trying to put back the charge the starter used. 
Check its dia, they are small but vary in size. 
The larger the pulley, the less likely to slip. 
Bruce Roe

TJ Hopland

I have found that modern automotive V belts for some reason take 2 or 3 re tensions over a few hundred miles before the seem to settle in and stay where you set them.  Industrial or lawn and garden belts don't seem to do that.  Dunno why.
73 Eldo convert w/FiTech EFI, over 30 years of ownership and counting
Somewhat recently deceased daily drivers, 80 Eldo Diesel & 90 CDV
And other assorted stuff I keep buying for some reason

Big Fins

Look at the make up of the mower belts. You can see much more fabric or Aramid(sp) cord in them as opposed to automotive belts. When engaging a pair of 22"+ blades, it puts a hurting on the rubber. Think about how many times you stop/start a mower and engage the blades.
Current:
1976 Eldorado Convertible in Crystal Blue FireMist with white interior and top. (Misty Blue

Past and much missed:
1977 Brougham de Elegance
1976 Eldorado Convertible
1972 Fleetwood Brougham
1971 Sedan de Ville
1970 de Ville Convertible
1969 Fleetwood Brougham
1969 Sedan de Ville
1959 Sedan deVille