300TDi Squeeling belt 'Penny Trick'

CharlesY · Apr 18, 2011

lve2011 said:
I have owned my Discovery for about 2 months now and have heard this squeaking in the mornings when letting the car warm up a bit.

Thanks

New landy owner

If the drive belt is the least bit slack, it will tend to skid and SQUEAL right after a cold start because the load and DRAG on the Alternator is very high as it tries to keep the system voltage up to par, about 14 volts or so.

Once the battery voltage is up, the alternator has less work to to, so the drag is less, and it tends not to skid and squeal.

Vinnie110 · Apr 18, 2011

I just used a washer instead.

CharlesY · Apr 20, 2011

Vinnie110 said:
I just used a washer instead.

What a cheapskate you must be, just to save a penny!

Dartmoor Navigator · Apr 20, 2011

CharlesY said:
What a cheapskate you must be, just to save a penny!

The washers are 8 pence each

CharlesY · Apr 20, 2011

Dartmoor Navigator said:
The washers are 8 pence each

HA HA!

And every one has a big hole in the middle!

RichyB · May 23, 2011

Hi guys, have been lurking on here for a while doing some research. Have a 1996 110 CSW and have now adopted the penny trick, what a change a big thanks to Battenberg for the info life is more peaceful now

Cheers

montyboy · Jul 20, 2011

battenberg said:
squeeling belt??

The penny trick:

remove belt

back of the single stud holding in the tensioner

put a penny in the 9 o'clock position

tighten back up, put belt back on.

i done this last week problem solved thanks montyboy

jyhelle · Aug 30, 2011

It's unfair for us living in Euroland as we don't have that part readily available ...

what is the thickness of a penny ? (in metric units of course)

blue beasty · Aug 30, 2011

jyhelle said:
It's unfair for us living in Euroland as we don't have that part readily available ...

what is the thickness of a penny ? (in metric units of course)

0.125............of an inch

Fur Trapper · Aug 30, 2011

blue beasty said:
0.125............of an inch

Is that a USA or British penny?

fanatic · Aug 30, 2011

Fur Trapper said:
Is that a USA or British penny?

[nomedia="http://www.youtube.com/watch?v=iR6oYX1D-0w"]Aloe Blacc - I Need A Dollar - Official Video HQ - YouTube[/nomedia]

jyhelle · Sep 1, 2011

blue beasty said:
0.125............of an inch

that would be 3.2 millimeters ! I'm not sure the Euro coin itself is thick enough

how do you prevent your pockets from piercing with such coins ? (well, I remember the old pence, one felt rich with the weight of only a dozen

)

biolandy · Oct 2, 2011

The UK penny measures 1.65mm-1.70mm-the euro 1 cent small copper coin measures~1.63mm-so very similar,although smaller in diameter.hth

piper109 · Oct 5, 2011

Well I fixed mine with a US penny so I reckon my fix was about 40% cheaper than yours ;-)

Steve

radagast1 · Nov 3, 2011

I recently bought a Land rover Discovery 1 and had the same squeaking problem, until I saw the "penny trick" posts, by "Battenberg and " The mad Hat Man". I have just tried that trick out, but with a slightly thinner brass washer, and "Hey Presto" no more squeaking! Thanks so much for these and other really helpful posts.
This really is a great forum and you guys make garage mechanics seem irrelevant!
Cheers.

Dartmoor Navigator · Nov 3, 2011

radagast1 said:
I recently bought a Land rover Discovery 1 and had the same squeaking problem, until I saw the "penny trick" posts, by "Battenberg and " The mad Hat Man". I have just tried that trick out, but with a slightly thinner brass washer, and "Hey Presto" no more squeaking! Thanks so much for these and other really helpful posts.
This really is a great forum and you guys make garage mechanics seem irrelevant!
Cheers.

Small brass washers cost 5p though :doh:

tomkettlewell · Jan 26, 2012

i can relax again,i had the entire yorkshire wildlife nesting in my bay now they've been banished by 1p, bobby bargain if you ask me

90Steve · Apr 9, 2012

Worked for me too! Thanks

dilligat · May 20, 2012

Worked for me thanks,
Changed tensioner bearing last week with no effect and the water pump the week before when doing the timing belt.
I can only assume the belt runs at and angle across the tensioner pulley face causing the squeek and this mod lines it all up. The belt can't jump off as the grooved pulleys either side of the tensioner are so close and hold the belt in line.
Fingers crossed it lasts

)

MeatCleaverX86 · Jun 14, 2012

hallio said:
Hi all,

I'd just like to add my "thanks" for this tip as well. My 300tdi developed a squeak and after changing the belt (it was due a change anyway) which made no difference I then tried swapping the tensioner. This seemed to work for a few days but then it came back.

I then stumbled upon this post! Curiously it didn't work on the new tensioner but in a flash of inspiration I took the old one down from the shelf (tip - never throw anything away) and tried putting the penny behind this one and hey-presto, silence has returned.

My theory as to why it sounds like the water pump squeaking (I was all-but ready to buy a new water pump) is that this is closest to the tensioner so if the tensioner isn't quite 'true' it'll be the next pully along that is affected the most.

Many many thanks,

Steve

ha yehup i bought a new water pump when i had a squeal i bought a new tentioner im lucky its quiet for two years but will definately try the penny trick

300TDi Squeeling belt 'Penny Trick'

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Leaks an prone to bits dropping off

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RESPECT IS EARNED, BEATINGS ARE FREE ;-)

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