loud squeal with speed
Thread Starter
|
Elder User
Joined: May 2007
Posts: 769
Likes: 0
From: Cary/Rocky Mount NC
loud squeal with speed
Hey all... i'm new here and just got this old beater truck. Now in all honesty i have not inspected the breaks yet - that is my task tomorrow. However, I have a loud squal that increases its repetitiveness with speed, and with break pressure it stops. Seems to me this would be the pads maybe worn the h@!! out but i dont know. Anyone have any other suggestions to check.
Its an 81 4wd 250 super
Thanks all and i'm happy to finally be a ford guy.
Its an 81 4wd 250 super
Thanks all and i'm happy to finally be a ford guy.
Thread Starter
|
Elder User
Joined: May 2007
Posts: 769
Likes: 0
From: Cary/Rocky Mount NC
well they did not seem loose or stretched but sure enough the other day i revved the hell out of it in park and heard the squeal. so i guess i'll go buy a new belt... i think .its only got 2 of 3 belts... so i'll replace them,
Posting Guru
Joined: May 2004
Posts: 2,223
Likes: 2
From: Billings Montana
I'm dealing with the exact same problem with my 86 F-250. I replaced the belts, then the pump went out. I replaced the pump, then the cooler line leaked. Replaced that, then the high pressure hose went to poo. Now the belts are squealing again. The next step, after new belts, is a .45 FMJ slug in the truck if the belts do so much as squeak! 
One thing I've learned about the belts is that they need to be re-tightened after a couple of days. Franklin2 pointed that out to myself and others, they are not tighten and forget pieces. Also, before you put in a new belt, clean the pulleys really well on the power steering pump and crankshaft and make sure there isn't anything on them that'll cause the belts to jump like a groove or ridge inside them.
One thing I've learned about the belts is that they need to be re-tightened after a couple of days. Franklin2 pointed that out to myself and others, they are not tighten and forget pieces. Also, before you put in a new belt, clean the pulleys really well on the power steering pump and crankshaft and make sure there isn't anything on them that'll cause the belts to jump like a groove or ridge inside them.
Trending Topics
Thread Starter
|
Elder User
Joined: May 2007
Posts: 769
Likes: 0
From: Cary/Rocky Mount NC
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
Posting Guru
Joined: Jun 2002
Posts: 2,091
Likes: 3
From: Suffolk, VA USA
Some guys don't like it, but belt dressing has always worked well for me. Also remember these older belts need about a half inch of defelction in them. Measure the deflection on the long run of the belt.
More Turbo
Joined: Aug 2005
Posts: 683
Likes: 6
From: North Georgia
another 2 cents worth. Don't tighten the belts to tight or you will put undue pressure on the bearing in the pump and it will go out. I tighten mine to the point there is about 1/2 inch of movement in the belt. I made the mistake of just tightening the he[[ out of it and the pump didn't last a week. good luck capt.
Junior User
Joined: Jan 2007
Posts: 67
Likes: 0
Originally Posted by CaptGuz
cut the wheel hard last night and it squealed so pwr steer pump may be another culprit...
If I turn my wheel to the max (either side) it starts squealing. I wouldnt say anything is wrong with my PS as I consider this to be normal and okay. It ONLY squeals when I ping the wheel out and not during normal operation, so I just avoid turning it to it's maximum..
Senior User
Joined: May 2007
Posts: 274
Likes: 0
Originally Posted by CaptGuz
i turned it to max, or if i jerk the wheel ...
This is generally bad. If you need to make a turn at full lock, back off a touch to allow the pump to still turn.
Quickly turning the wheel will have a similar effect, rapidly increasing the pressure in the pump to a point whare it stalls and the belt squeals.
Normal action, emphasised with a slightly loose/worn belt.
Squealing brakes can be caused by dry plates between the pistons and the pads. A smear of Kopper Kote (copper paste) on mating surfaces helps here. If they're completely worn out the steel backing plates will be rubbing against the discs/drums. Some manufacturers also include a substance to make the brakes make a noise when they are getting close to worn out.....
Last edited by IB Tim; May 23, 2007 at 06:57 AM.
Junior User
Joined: Jan 2007
Posts: 67
Likes: 0
Originally Posted by ozstang65
With the wheel on full lock there is maximum pressure inside the P/S pump which can sometimes lock up the pump and cause the belt to slip/squeal.
This is generally bad. If you need to make a turn at full lock, back off a touch to allow the pump to still turn.
This is generally bad. If you need to make a turn at full lock, back off a touch to allow the pump to still turn.