Great War truck Posted October 16, 2008 Share Posted October 16, 2008 As I drive along in my Jeep it occasionally makes a single loud “tick” type noise. Occasionally it does it two or three times at irregular intervals. It sounds like it comes from under the bonnet. I stop the Jeep and look around and can see nothing wrong, yet when I drive off it occasionally makes the noise again (most notably when I go over a bump). It did it again today as I started the Jeep up, but could find no apparent cause of the noise and certainly couldn’t get it to do it again once I had gotten my head under it. I am wondering if the flexible exhaust pipe might be blowing and making that noise, but I cant be certain and always worry that it is something more problematical. The Jeep is otherwise going very well, just this odd noise. Has anybody got any thoughts? Many thanks Tim (too) Quote Link to comment Share on other sites More sharing options...
gritineye Posted October 16, 2008 Share Posted October 16, 2008 Tim, I would try looking at the spring hanger bolts and give them a tighten up as the inner sleeve may be turning. Quote Link to comment Share on other sites More sharing options...
N.O.S. Posted October 16, 2008 Share Posted October 16, 2008 Had a very similar noise with my jeep - turned out to be the transverse section of exhaust pipe occasionally hitting the transfer box belly plate, took ages to pin it down but easy to fix! Quote Link to comment Share on other sites More sharing options...
Nick Johns Posted October 16, 2008 Share Posted October 16, 2008 Check the clearance of the fan blades in the cowling, when engine mount flexes going over bumps the fan can hit the bottom of the cowling Quote Link to comment Share on other sites More sharing options...
Great War truck Posted October 16, 2008 Author Share Posted October 16, 2008 Thanks guys. Some good ideas there. I am taking it out to my daughters school tomorrow so i can have a look at these areas while i am there. Many thanks Tim Quote Link to comment Share on other sites More sharing options...
Great War truck Posted October 25, 2008 Author Share Posted October 25, 2008 Check the clearance of the fan blades in the cowling, when engine mount flexes going over bumps the fan can hit the bottom of the cowling That was just about it, but instead of hitting the cowling it was hitting the pulley on the dynamo. Took a while to work out as we couldnt see any shiny bits on the cowl and it only seems to do it when going over bumps. My thanks go to Julian for spotting it. I guess as it has started hitting the pulley then the bearing there is wobbling and on its way out. Thanks everybody Tim (too) Quote Link to comment Share on other sites More sharing options...
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