Squealing HP pump.

Rich · Post by **Rich** » Tue Dec 13, 2011 9:53 am

Hi all.

Over the last few weeks the HP pump has started to squeal on the BX. I have checked the belt tension and that seems OK. The steering is also heavier and not as smooth as it was.

Is it new pump time???

Gibbo2286 · Post by **Gibbo2286** » Tue Dec 13, 2011 10:16 am

The first thing to check is the belt, not just its tightness but also where it's running in the pulley.

If the sides are worn off and it's running on the bottom of the groove it will skid and squeal under load.

Rich · Post by **Rich** » Tue Dec 13, 2011 10:22 am

Thanks Gibbo. The belt is less than a year old and has only done about 7000 miles (that's why I checked the tension).

Post by **Defender110** » Tue Dec 13, 2011 1:18 pm

If it's squealing it still only points towards belt tension or worn belt. The pump belt does need to be very tight. A worn pump doesn't normally squeal unless it is physically locking up?

Stinkwheel · Post by **Stinkwheel** » Wed Dec 14, 2011 8:21 am

Rich,

Just a thought and im sure you know, but the HP pump belt have to be set much tighter than yer average alternator belt.

Rich · Post by **Rich** » Thu Dec 15, 2011 12:38 pm

Hi Matt.

How tight is tight?

MULLEY · Post by **MULLEY** » Thu Dec 15, 2011 12:48 pm

Tight enough that when you push on the belt, it should hardly flex/move

Stinkwheel · Post by **Stinkwheel** » Thu Dec 15, 2011 4:11 pm

Exactly what the other Matt said (aka Mulley)

Almost no deflection, not like a normal belt.

Post by **mat_fenwick** » Thu Dec 15, 2011 4:38 pm

I might as well jump on the bandwagon of Matts responding, and say I agree with the above too! As someone once said to me, it needs to be fu……erm…..fully tight.

Rich · Post by **Rich** » Fri Dec 16, 2011 12:21 am

That may be the problem.... There is about half and inch of flex in the belt.

BX Meteor · Post by **BX Meteor** » Fri Dec 16, 2011 2:22 am

Rich wrote:That may be the problem....

That IS the problem, though you might also need to check it for glazing or oil contamination, talcum powder sometimes helps that

citronut · Post by **citronut** » Fri Dec 16, 2011 7:37 pm

BX Meteor wrote:talcum powder sometimes helps that

on the belt not your bum

try turnning the pump pulley by hand when the system is up to presure,

regards malcolm

BX Meteor · Post by **BX Meteor** » Fri Dec 16, 2011 9:03 pm

Rich · Post by **Rich** » Sun Dec 18, 2011 6:38 pm

Belt tightened.... Sorted

Thanks for the help.

Rich.