Kronos1664 Posted June 24, 2015 Report Share Posted June 24, 2015 Hi I have just had new cam belt fitted at my local garage. when idling the belt appears fine with no up and down movement. but when the revs are increased the top section of belt (which is visable with the cover on) moves up and down approx 1cm total at a certain rev range. when the revs are increased further is stabilizes again. Is this normal or is the belt too slack? thanks for any advice. Quote Link to comment Share on other sites More sharing options...
jonwat Posted June 24, 2015 Report Share Posted June 24, 2015 Did they replace the tensioner bearing while they had the belt off as they do wear, don't know if a worn bearing would cause the flapping but it's worth changing if it's worn. A quick check of belt tension is to twist the section half way between the inlet camshaft pulley & the auxiliary pulley, you should be able to turn it through 45 degrees or so & no more without due force. Quote Cheers, John W http://jonwatkins.co.uk Link to comment Share on other sites More sharing options...
Kronos1664 Posted June 24, 2015 Author Report Share Posted June 24, 2015 Hi Jon, Yes the bearing and aux belts were changed at the same time. Quote Link to comment Share on other sites More sharing options...
andydclements Posted June 25, 2015 Report Share Posted June 25, 2015 Hi. Doesn't sound like anything to worry about, you'e welcome to borrow the tension gauge if you want to be assured. Quote Link to comment Share on other sites More sharing options...
ramjet Posted June 25, 2015 Report Share Posted June 25, 2015 If it settles against once thought the rev range, I'd suggest it is just a harmonic that causes it to vibrate. Quote All we know is that when they stop making this, we will be properly, properly sad.Jeremy Clarkson on the Esprit. Opinions are like armpits. Everyone has them, some just stink more than others. For forum issues, please contact one of us Moderators. Link to comment Share on other sites More sharing options...
Kronos1664 Posted June 26, 2015 Author Report Share Posted June 26, 2015 Thanks for the replies. I think I was just being over cautious. I saw the guy that fitted it he checked the tension and said no problems and that I could expect a little flap especially when the engine was cold and not under load. So happy now. Better to be safe than sorry. Quote Link to comment Share on other sites More sharing options...
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