Squealing like a stuck pig

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Rox Crusher
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Squealing like a stuck pig

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Before the last wheelin' trip I noticed a bit of a squeal which I chalked up to worn v-belts.

Replaced both belts and low-n-behold it went from intermittent to non-stop.

I tried adjusting them seven ways to Sunday and still squealing non-stop.

I then thought the alternator pulley looked a little suspect so I removed the alternator had it tested and the guy said while its' output was fine he thought the bearings were shot and recommended a new one. Installed new alternator and new pulley and wa-la..................still squealing like a pig. 100 bucks down the drain.

Said to myself, it must be the water pump so I replaced it and the thermostat. After I installed it I ran the engine without any of the belts on it for about one minute and it ran nice and quiet. Revved the engine while doing it and no squeal.

Put the fan pulley, fan, and belts on and of course it is back to squealing again. The grooves in the fan pulley look ok as do the belts (their basically brand new). Adjusted the belts a couple times without success.

At idle it barely squeals. I took it for a test drive and if you put any load on the engine it starts squealing. Man, my neighbors gotta love me.

At least the new water pump seems to have solved my hot running engine issue. Gauge still reads 190 +/- but the engine bay is way cooler and it didn't vapor lock while on the test drive.

I am now wondering if it could be a bearing going bad in the engine itself ? I'm not accustomed to engine bearings squealing like this but I am out of ideas and beginning to think the worst.

So, what else could I check or do to find the root cause of the squeal ?
1977 Sport, 351w OBDII EFI motor, 4R70W auto, 4:88 gears, ARB lockers, 3.5" suspension, 33" tires.
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Rox Crusher
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Re: Squealing like a stuck pig

Post by Rox Crusher »

zillacon wrote:Did you inspect the PS pump?


several times

tryin not to through any more money at it as that just eats into my EFI conversion fund
1977 Sport, 351w OBDII EFI motor, 4R70W auto, 4:88 gears, ARB lockers, 3.5" suspension, 33" tires.
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ZOSO
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Re: Squealing like a stuck pig

Post by ZOSO »

did you clean the pulleys? A little antifreeze on them will make them squeal. You still have your old belts? try and put them on. I've had a brand new belt chirp.
Rob

74 Ranger EFI351w, 4r70w, ARB 5.13 9in, ARB 5.13D44, and a bunch of other goodies. Best of all the family memories.

04 Mustang Cobra, KenneBell 2.2 feeding a lot of boost on E85. Tire shredding machine

New project: 77 Bronco Ranger, body work and more body work.

Very little left of a 72 durango tan explorer sport
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Moab Mike
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Re: Squealing like a stuck pig

Post by Moab Mike »

Can you see any other pulley's that may be worn to the point that it will allow the belt(s) to slip causing your squealing? Could there be such a load on the alternator that it is causing the squeal?
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Rox Crusher
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Re: Squealing like a stuck pig

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76fordbronco wrote:Can you see any other pulley's that may be worn to the point that it will allow the belt(s) to slip causing your squealing? Could there be such a load on the alternator that it is causing the squeal?


All the other pulleys look ok.

One thing I did notice is that my radio no longer turns off with the ignition (water leaking from windshield dripped onto it and shorted it out) so all the faceplate lights are on all the time. Maybe that is draining the battery down and causing alternator load. I think I will cut the power to the radio since it is inoperable.
1977 Sport, 351w OBDII EFI motor, 4R70W auto, 4:88 gears, ARB lockers, 3.5" suspension, 33" tires.
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Booger
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Re: Squealing like a stuck pig

Post by Booger »

I have a Car Care Manual distributed by Gates Rubber Co. back in the 70's. Quote from this manual " A belt slipping when driven accessory is under load, may produce a howl or squeal. Retension or replace belt.
Squeaks are more noticeable when engine is idling, and are generally caused by misalignment or too much tension. Correct by checking pulley alignment and retensioning belt."

You might want to check the belt alignment. Also make sure the belt fits in the V groove correctly and the belt isn't in or out of the groove by too much.
Bob - Turning hydrocarbons into noise since 1970

Spiritual owner of the now Zoso mobile (1974 Bronco Ranger - EFI 351W-4R70W-ARB front and rear-STC softtop- High Country hood-3 1/2" WH lift- Cross inboard rear shock mnt- Duffs bumpers- Warn 8274- 33's- Cheby disc conversion)
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akaFrankCastle
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Re: Squealing like a stuck pig

Post by akaFrankCastle »

Rox Crusher wrote:
76fordbronco wrote:Can you see any other pulley's that may be worn to the point that it will allow the belt(s) to slip causing your squealing? Could there be such a load on the alternator that it is causing the squeal?


All the other pulleys look ok.

One thing I did notice is that my radio no longer turns off with the ignition (water leaking from windshield dripped onto it and shorted it out) so all the faceplate lights are on all the time. Maybe that is draining the battery down and causing alternator load. I think I will cut the power to the radio since it is inoperable.


I wanna say they make a battery kill switch that can be mounted directly to the positive battery terminal post. Might be a good purchase until you get the wiring issues sorted out.

http://www.streetperformance.com/m/cats/206-electrical-computers-and-software/4328-battery-kill-switch.html
Stroppe'd
1972 Sport, 302, 3 speed with old school Duff floor shifter, T shift Dana 20 with JB Fab twin stick, 4.11 gears with Trac-loc, Lincoln hydroboost, Chevy disc conversion, WH gas lift gate shock kit, 33" Duratrac tires on slots and about 2.5" of lift, Stroppe installed: bumper braces, dual shocks on all four corners, GM power steering, trans cooler mount, auto shift column, rollbar.

The Terrible One
1972 Sport uncut, 302, C4 with 1974 column , T shift Dana 20, 3.50 gears w/ limited slip, 1966 U13 Roadster kick panel, and factory power steering.

1973 Stroppe Baja project
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Rox Crusher
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Re: Squealing like a stuck pig

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I disconnected the radio and put the battery on the charger overnight.

Not brave enough to start it up at 5:30 am and risk waking the wife.

I guess my next move will be to take the belts off one at a time to see if I can isolate the squeal.
1977 Sport, 351w OBDII EFI motor, 4R70W auto, 4:88 gears, ARB lockers, 3.5" suspension, 33" tires.
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Moab Mike
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Re: Squealing like a stuck pig

Post by Moab Mike »

Rox Crusher wrote:I disconnected the radio and put the battery on the charger overnight.

Not brave enough to start it up at 5:30 am and risk waking the wife.

I guess my next move will be to take the belts off one at a time to see if I can isolate the squeal.



Com'on! Where is your since of adventure? icon biggin
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Re: Squealing like a stuck pig

Post by Booger »

76fordbronco wrote:
Rox Crusher wrote:I disconnected the radio and put the battery on the charger overnight.

Not brave enough to start it up at 5:30 am and risk waking the wife.

I guess my next move will be to take the belts off one at a time to see if I can isolate the squeal.



Com'on! Where is your since of adventure? icon biggin


Yeah. I bet my neighbors love me at 4:30 in the morning lighting off my Mustang. Not too quiet when it fires up.
Bob - Turning hydrocarbons into noise since 1970

Spiritual owner of the now Zoso mobile (1974 Bronco Ranger - EFI 351W-4R70W-ARB front and rear-STC softtop- High Country hood-3 1/2" WH lift- Cross inboard rear shock mnt- Duffs bumpers- Warn 8274- 33's- Cheby disc conversion)
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Rox Crusher
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Re: Squealing like a stuck pig

Post by Rox Crusher »

Well it seems a fully charged battery has indeed solved the squeal

Now if a fully charged battery could only stop a leaky rear main seal

Thanks for everyone's input and suggestions
1977 Sport, 351w OBDII EFI motor, 4R70W auto, 4:88 gears, ARB lockers, 3.5" suspension, 33" tires.
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Moab Mike
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Re: Squealing like a stuck pig

Post by Moab Mike »

Rox Crusher wrote:Well it seems a fully charged battery has indeed solved the squeal

Now if a fully charged battery could only stop a leaky rear main seal

Thanks for everyone's input and suggestions



Great job Rox! poke
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Zenzone
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Re: Squealing like a stuck pig

Post by Zenzone »

Rox Crusher wrote:Well it seems a fully charged battery has indeed solved the squeal

Now if a fully charged battery could only stop a leaky rear main seal

Thanks for everyone's input and suggestions



Interesting. Wouldn't have thought the battery would make that much difference. Good to know.
1976 Ranger Ford Bronco, 33's, 4 inch lift, Holly truck avenger 4 barrel 302, Sidewinder winch, on board air, amplified sound system, duel battery, CB radio,

Real Estate Agent at Lorin Properties Inc.
Zen@LorinProperties.com (303) 653-1541
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Re: Squealing like a stuck pig

Post by ZOSO »

Zenzone wrote:
Rox Crusher wrote:Well it seems a fully charged battery has indeed solved the squeal

Now if a fully charged battery could only stop a leaky rear main seal

Thanks for everyone's input and suggestions



Interesting. Wouldn't have thought the battery would make that much difference. Good to know.

If you have a high amp alternator it can cause that if the battery is dead. As the load increases on the alternator the harder it is to turn. That's why if you go with a 3g they say go serpentine or dual v belt.
Rob

74 Ranger EFI351w, 4r70w, ARB 5.13 9in, ARB 5.13D44, and a bunch of other goodies. Best of all the family memories.

04 Mustang Cobra, KenneBell 2.2 feeding a lot of boost on E85. Tire shredding machine

New project: 77 Bronco Ranger, body work and more body work.

Very little left of a 72 durango tan explorer sport
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Re: Squealing like a stuck pig

Post by Zenzone »

ZOSO wrote:
Zenzone wrote:
Rox Crusher wrote:Well it seems a fully charged battery has indeed solved the squeal

Now if a fully charged battery could only stop a leaky rear main seal

Thanks for everyone's input and suggestions



Interesting. Wouldn't have thought the battery would make that much difference. Good to know.

If you have a high amp alternator it can cause that if the battery is dead. As the load increases on the alternator the harder it is to turn. That's why if you go with a 3g they say go serpentine or dual v belt.


Oh gotcha. I understand now.
1976 Ranger Ford Bronco, 33's, 4 inch lift, Holly truck avenger 4 barrel 302, Sidewinder winch, on board air, amplified sound system, duel battery, CB radio,

Real Estate Agent at Lorin Properties Inc.
Zen@LorinProperties.com (303) 653-1541
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