disco111 Posted February 13, 2013 Share Posted February 13, 2013 Hi everybody I own a td5 m.y. 2000 with the engine tuned at 150 hp,it performs very well but when towing a caravan uphill at full power there is a sissing noise probebly from the exaust collector,the collector is bending at very high temperatures and the gasket can't take it any longer.The noise disapears after 5 minutes when the engine is running in normel conditions (50/60% power output). I know that Land Rover made a mistake by making the exaust collector (of a 5 cylinder) in one piece.(they made several other faults aswell but thats an other story). Now my question: Is there a good solution fror this problem?? Or is there an alternative solution on the market somewhere ??? Quote Link to comment Share on other sites More sharing options...
Aragorn Posted February 13, 2013 Share Posted February 13, 2013 It could be a snapped stud on the manifold, rather than just gasket failure/warped manifold. I've seen people cutting out the webbed area of the manifold to allow it to flex more: Theres also stud upgrades available which let you fit bigger studs to the head. Quote Link to comment Share on other sites More sharing options...
landy andy. Posted February 13, 2013 Share Posted February 13, 2013 Skim it flat, cut out the webbing, replace the studs with new ones, fit new gasket, then refit manifold. Easy job, just the ost of skimming at about £35-40 Andy Quote Link to comment Share on other sites More sharing options...
SteveT247 Posted February 14, 2013 Share Posted February 14, 2013 Skim it flat, cut out the webbing, replace the studs with new ones, fit new gasket, then refit manifold. Easy job, just the ost of skimming at about £35-40Andy Sound advice and thats what I would do. Manifolds that have previously warped then been skimmed seem immune to further warping. Steve. Quote Link to comment Share on other sites More sharing options...
disco111 Posted February 18, 2013 Author Share Posted February 18, 2013 Hi everybody Thanks for your wise advice ! Quote Link to comment Share on other sites More sharing options...
ajh Posted February 19, 2013 Share Posted February 19, 2013 Isn't slotting the holes also an option to allow a bit more lateral movement without pressuring the studs as much? Quote Link to comment Share on other sites More sharing options...
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