tisykcoles Posted October 31, 2017 Share Posted October 31, 2017 I have a 2007 Defender 110 with a 244DT motor. Friday evening as I was picking my husband from airport I noticed a small whirring noise when in 6th gear coming from under hood. I pulled over at nearest stop and restarted engine..no problems and restarted my journey with no more noises. Sunday afternoon I was driving my husband back to airport when the noise started again in 6th gear (husband driving) but got louder and car was loosing acceleration. Again we just made it to the next gas station before we lost all acceleration. The engine was making a knocking noise and would not move. There were no displays (no oil light, no temperature change)...all normal on display. Motor was not overheating. Tow truck picked up Landie and delivered yesterday to mechanic. Mechanic has told me I need to replace entire motor at a cost of 10.000euro!!! After speaking with other mechanics they interpret the problem as a blown fuel injector. My mechanic has not tested compression only started engine and saw that pressure was coming out of oil tank...and came to the conclusion that a piston had a hole and burned out the engine... There is oil and motor starts..lacking compression. I am no mechanic and live in Italy ... Quote Link to comment Share on other sites More sharing options...
Scotts90 Posted October 31, 2017 Share Posted October 31, 2017 So how do you know it's lacking compression if no one has carried out a compression test? Knocking noise and no power are never a good sign, if it's holed a piston then there's a high chance the debris will have caused damaged to other parts of the engine. I'm surprised it runs if there's a suspected holed piston, and if there is, running the vehicle will only increase the damage as your squirting fuel down the bore into the sump...diluting what ever oil is there. if your mechanic is detecting the compression stroke coming out of the oil cap (I assume) it sounds as though you may have a burnt out valve (not a piston). Either way it will require some engine surgery to properly diagnose and repair. Quote Link to comment Share on other sites More sharing options...
NickHodgson Posted November 2, 2017 Share Posted November 2, 2017 Would a loose injector or a failed injector seat washer not give these symptoms? For Euro10k I might expect a compression test or some form of further diagnosis.... Quote Link to comment Share on other sites More sharing options...
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