cam belt

[Beato19]

Cheers Greg, thank you very much for your excellent reply regarding my coolant sensor. I was told that the car shouldn't require an O ring when the new sensor is fitted (clever people) but it makes dense to fit one I suppose. I'm not very happy about a plastic clip but i suppose its a sign of the times and something else to break. Once again. Thank you.

[greg123]

You are welcome ;-)

Agree about the plastic clips but if you get a visual/mirror so you know how it fits and make sure the sensor is in fully firm they behave once in. Agree about the o-ring but for 20p or whatever worth it even in case you drop one!

Good luck,
Greg.

[skippy41]

I have a good system tried and tested over 15 years.

Essentially the bearings go when the grease runs dry. If the grease is still good, the bearings are unpitted and there is no free play I'm confident that re-packed with grease it's good to go. Never, ever, failed me. In fact this is the standard way of dealing with old non-sealed bearings. The only difference is that the old ones didn't have properly sealing covers, it's pretty easy to pop off the covers when you know how. Just work clean, I fully clean and de-grease before I pop the cover off.

Anyhow, you don't have to do it, I don't normally mention it. Just fit new ones.

Greg.

Could the bearings make a clattering sound when the engine is idling?
or the tension er, its a sound like something is trying to engage but cannot, coming from the belt end of the engine.
MK2 1.9tdi.105 BHP

I understand that you can now get a proper waterpump instead of the plastic ones, where can you get them and how much

[Pauloz]

Could the bearings make a clattering sound when the engine is idling?
or the tension er, its a sound like something is trying to engage but cannot, coming from the belt end of the engine.
MK2 1.9tdi.105 BHP

I understand that you can now get a proper waterpump instead of the plastic ones, where can you get them and how much

sounds like the aux belt tensioner has gone. BUT that is often not the route problem; theres a one way clutch pulley on the alternator (over running alternator pulley, OAP) which could have siezed up inside meaning its free to rotate in both directions. This causes increased belt flap...... and the tensioner to give up permaturely!
Many garages dont know about OAP's, or that you can change them without changing the whole alternator because you need a spline tool to remove them.....

[skippy41]

I think I will have to get things checked out and a full belt change ASAP cannot afford an engine rebuild
Its done 70K now and out of warranty
Thanks for the info

[greg123]

Motor factors/euro parts, about £25 with vat.

Clattering likely the A/C compressor bearing, turn the a/c on and see if it goes. Inspection with belts off will prove the rogue bearing.

Greg.

Could the bearings make a clattering sound when the engine is idling?
or the tension er, its a sound like something is trying to engage but cannot, coming from the belt end of the engine.
MK2 1.9tdi.105 BHP

I understand that you can now get a proper waterpump instead of the plastic ones, where can you get them and how much

[Pauloz]

Motor factors/euro parts, about £25 with vat.

Clattering likely the A/C compressor bearing, turn the a/c on and see if it goes. Inspection with belts off will prove the rogue bearing.

Greg.

If the clattering stops when turning A/C on, that doesnt nessesarily mean its the A/C bud, as that will change the torque in the system and could quieten a tensioner on the edge of giving up completely

[skippy41]

Thanks for all the info guys will try the air con when i go out, hardly use it though just wind the window down a bit and turn on the demist blower I do run it for about 15 mins on long runs though just to keep it working

[Pauloz]

Thanks for all the info guys will try the air con when i go out, hardly use it though just wind the window down a bit and turn on the demist blower I do run it for about 15 mins on long runs though just to keep it working

Whys that Skippy? Turning the A/C on is more fuel effiecient that opening a window because the the increased drag......

[skippy41]

Just an update, I tried the air con to no avail, then I spotted the boss of the gararge I have been using for my Kia, he had a quick look at it and said it could be the clutch release bearing as the sound is defo coming from the gearbox, thats why when I depress the clutch pedal the clatter goes he said it could also be a lose spring on the clutch plate as the clatter is not there all the time, I will get it up to him to take the box off to investigate, he also told me that if its flywheel related he has a brand new one at his gararge I can have for £50, removed from a right off