squeaking drive belt

[tab]

Well Here is the tale... I changed the large drive belt on my 300 tdi and the new belt frayed at the edges. Then I noticed that the water pump was weeping, so it was replaced. Then it sounds like a noisy bearing in one of the idler pulleys, so I've replaced all three, still noisy, and the tensioning pulley is jumping moving up and down as the engine idles. The new water pump feels free enough just turning it by hand - any clues on what might be happening here please?

btw is there a trick to removing those internal circlips, the ones with no lugs in them?

[DEFENDERZOOK]

frayed at the edges........is the new belt the correct width......?
is it fitted correctly on all the pulleys.......? its not one groove out on any of the pulleys......?

[DEFENDERZOOK]

is this the type of circlip you are referring to.........?


http://www.grw.de/english/images/bohrungs-sprengring-3d.gif

[tab]

Im hoping that was the reason for the belt failure- out one groove on one of the pulleys, this I have now checked carefully and all is now OK there -

I have drilled a small hole in the circlips, so I can remove them with circlip pliers - but the pulley on the air conditioning drive belt has a normal circlip!

I'll just keep driving it and see if it settles down I guess

[tab]

Thats the one! probably not called a circlip at all - but that is the function.

[DEFENDERZOOK]

its called a bore clip.....it fits inside the bore of something........
has also been called a jesus clip........ie....jesus....where did that clip go.....!!??!!




to remove......you fit a screw driver in the end of it under the tongue.....then twist until one end is clear of the groove it sits in........
then using a second screwdriver in behind the end that is now held out.....lever it up slightly so it cant fall back into its groove.......
then carefully pry it out by slowly working the screwdrivers in behind it and working the clip out of its groove........

[p38arover]

carefully pry it out by slowly working the screwdrivers in behind it and working the clip out of its groove........

Then you go and buy a new one because you can't find the clip over the other side of the workshop.

Putting the new one in is also good. Make sure you have a spare bearing to replace the one whose dust shield you pierce or dent with the screwdriver.

Ron

[DEFENDERZOOK]

youve had a bit of experience with them jesus clips ron......?

[tab]

Thanks for that ... I actually went and bought some actual circlips, and turned the groove wider to accept, same, but there didnt seem enough room on the main belt tensioner pulley.

So ...its a bore clip, not that other thing I was calling it.

[DEFENDERZOOK]

any mechanic you speak to will call it a circlip.........so circlip is fine........

its when you are trying to remove one that you start to call it something else......
usually on the nth attempt..........

[Blknight.aus]

dontcha love them buggers.... I take em out with a specially modified drift, called a chisel.... then replace em with a new one later...

grab a high quality pin drift (3mm I think from memory) turn that into a chisel use carfeully on the clip with a small hammer about 10mm from one end untill the tip lifts up a bit, grab ith liers anr rip it out.

Much less hassle and very theraputic when you think about how much hassle theyve been in thhe past.

[incisor]

small screwdriver with a hardened tip is the best way i have found.

the ends of the clip will be at an angle allowing you to fit a larger blade closer to the outer diameter of the clip. insert and turn clockwise and it should move one side out enough that you lean the screwdiver back a little and lever the edge of the circlip away from the groove. you then work your way around the outer and remove clip... no need to go looking for projectiles.

you do need a hardened tip screwdriver to do it.

other easy way is with one of those cheapy circlip pliers that come with replacable internal and external tangs...

[100I]

One of these days I will put a grab kit of e-clips on the shelf at home - I reckon my strike rate is about 1 in 5 I DON'T lose. I hate em with a passion.
Manufacturers must say "hey we've got a component here which has lots of spagetti around & above it and right below is several components that will cause an unpredictable ricochet. I know, let's put an e-clip HERE, that'll fuggem".