[Olear]

Hi there,

I've recently had the cambelt and water pump changed on my skoda octavia 1.9tdi 110, and ever since i picked the car up there is a reasonably loud whining noise coming from the engine bay. This is particularly noticeable when letting the engine drop back to idle after revving it in neutral (not so noticeable when in gear). I am a bit worried that the cambelt might be too tight - is this possible on this engine? Or is the cambelt self tensioning?
The garage also did not replace the engine tray when putting it back together, as it was too damaged to refit. So, the only other possibility i can think of for the source of the whining noise is that maybe it is coming from the ancillary belt, and i just didn't notice it before because the engine tray was doing a good job of sound proofing the engine.
Am i just being paranoid?
Does anyone have any thoughts on this?
Thanks!

 

[buggy9]

It should use the same TDI tensioners as the VWs. They're all self tensioning if you set it correctly with the arrow in the middle. If you turn the engine using the crankshaft 12 pt bolt to TDC, and on a cold engine, the arrow should be in the window. And it could of course, be wind noise or other noise. Check out this writeup to see what the tensioner should look like: http://www.myturbodiesel.com/1000q/a4/ALH-engine-timing-belt-change-VW-Jetta-TDI-1.htm

 

[Olear]

Thanks for the answer. Yes, i'm pretty sure my skoda is based on the mk4 golf tdi, so the same info should apply. The timing belt fitting guide looks very comprehensive - I think i will have to take the belt cover off and have a look in... Alternatively i could try and forget about it and if the cambelt goes just take it back to the guy that changed it..!
Cheers!

 

[Keithuk]

Welcome to the forum. welcometomyturbodies

A whining belt normally means its been over tensioned. Engines fitted to the 2001 Octavia.

Skoda Octavia/Octavia Tour (96-10) 1,9D TDI 1997-06 Engine code: AHF 110hp
Skoda Octavia/Octavia Tour (96-10) 1,9D TDI 1996-06 Engine code: AGR 90hp
Skoda Octavia/Octavia Tour (96-10) 1,9D TDI 1999-06 Engine code: ASV 110hp
Skoda Octavia/Octavia Tour (96-10) 1,9D TDI 2000-06 Engine code: ALH 90hp

Skoda Octavia/Octavia Tour (96-10) 1,9D TDI PD 2000-06 Engine code: ATD 100hp

Did you change the belt or someone else?

 

[Olear]

Thanks Keith.

Someone else changed it, so now that i've got this whining i'm suspicious that it might be coming from the cambelt. As i said in my first post, it's not noticeable when i'm accelerating, but just when i lift off and i let the engine slow down on it's own. It sort of whines it's way back down the rev range.
Question is, will i be able to see the tensioning pulley to see if it's properly lined up, without having to dismantle anything major to get access to it?

 

[Keithuk]

Did you change the belt or someone else?

Yes but you didn't say if you changed it or someone else?