After having my inlet manifold replaced about 3 weeks ago I noticed a low volume rythmic droning coming from the cambelt area towards the top. I did not have it replaced as recommended at the time because it was only 4000k old & did not want the added expense to an already hugely expensive job.
Anyway, I dismissed the noise as me being paranoid but last week I hand an injector fault diagnosed by a different garage. They mentioned the cambelt seemed a little tight without me mentioning the noise to him. The mechnic advised I take it back to the garage that replaced the manifold. I took it for a second opinion who said it sounded a little tight but was of no concern.
So my questions are, what makes a belt loose / tight? Would this part of been removed during the inlet replacement?
What issues would a tight belt cause? Am I asking for trouble by leaving it and monitoring if the noise worsens?
And any advice on the matter would be appreciated...
I'm concerned I'll take it back to the garage that replaced the manifold and they will dismiss the issue. With something along the lines of "we asked if you wanted it replaced, it's not something we 've done in refitting."
After £1100 on a manifold, injector & EGR I can't afford to keep forking out money on it. Especially as it's something I paid for not so long ago.