Andrew Cleland Posted February 28, 2010 Share Posted February 28, 2010 The Landy (Defender 110, Range Rover 3.9 V8, LT85) has been chirping occasionally for a few months, recently it's become continuous and louder - it's driving me round the bend and as we're 3 weeks away from driving to Italy, it's a bit of a worry that something's going to fail. I was pretty sure it was either a belt or the water pump/alternator/PAS pump bearing, but I ran the engine with all 3 belts removed yesterday and it still did it :-( The chirps keep time with engine speed, not road speed & still happens when we're stationary so I don't think it's from the gearbox or transmission. When it was more occasional it seemed to happen once the engine was warm, but now it's all the time. Digging around the web, I found two possibilities - a tappet on it's way out (they are Britpart from before I knew better and I've always though one was a bit noisy) or a mounting rubber (this from a Harley Davidson forum!). I'm also wondering about the clutch release bearing, although depressing the clutch makes no difference, which I'd expect it to do so if it was the clutch release bearing. Any other ideas? TIA, AndyC. Quote Link to comment Share on other sites More sharing options...
Les Henson Posted February 28, 2010 Share Posted February 28, 2010 Prop U/J makes a chirping noise at is dries out/starts to break up. Les. Ah - does it while it's stationary - sorry Quote Link to comment Share on other sites More sharing options...
Disty Posted February 28, 2010 Share Posted February 28, 2010 Does the V8 have a timing belt? presumably you can't remove that while the engine is running? Quote Link to comment Share on other sites More sharing options...
Orgasmic Farmer Posted February 28, 2010 Share Posted February 28, 2010 blowing exhaust manifold gasket? Quote Link to comment Share on other sites More sharing options...
jad Posted February 28, 2010 Share Posted February 28, 2010 alternator bearing? Quote Link to comment Share on other sites More sharing options...
kevin Posted February 28, 2010 Share Posted February 28, 2010 Turbo,or exhaust? as you have said it can't be tranmision. alt, or water pump and a tappet will not be a slow chirp, take the turbo pipe off and give it a squirt, give the engine a good shake to rule out the mountings. sorry just noticed v8 so no turbo Quote Link to comment Share on other sites More sharing options...
Andrew Cleland Posted March 1, 2010 Author Share Posted March 1, 2010 Sorted, thanks to Badger on alt.fan.landrover. Blocked oil-way in a valve rocker meant the push-rod wasn't getting any oil and the rocker was looking pretty rough. http://battlingwindmills.wordpress.com/2010/03/01/things-that-go-chirp/ AC Quote Link to comment Share on other sites More sharing options...
petethepilot Posted March 1, 2010 Share Posted March 1, 2010 Glad that you sorted it out! What happened to me an a classic RR 3.9 was that the piston skirt was coming loose (so there was a crack in a piston skirt). Hence the chirping noise. Not that funny, but luckily was spotted before disaster... Quote Link to comment Share on other sites More sharing options...
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