Home > Technical > Chirping like a nest full of hungry chicks! |
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The Hulk Member Since: 13 Apr 2016 Location: Aberdeenshire Posts: 81 |
My GF's 90 (300TDi) is making a very strange noise when on the move and under load. It can only be described as a chirping noise related to road speed but a much higher frequency than the revolution of the road wheels. By 30mph it sounds like a trimphone and it appears to be coming from everywhere!! It's not there at constant speed or on the over-run.
I suspect it's one of the UJs on the shafts coming from the transfer box but would appreciate any other thoughts. I've seen threads about clunking UJs but this isn't a harsh mechanical sound. It's very distinct (and very loud) but it doesn't sound 'heavy' so I don't think it's too serious. Mid Life; Live It! Ongoing thread: http://www.defender2.net/forum/topic45697.html 110 300Tdi Utility (Hulk) 90 300Tdi SW (GF's Tank) |
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25th May 2016 8:32am |
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Stacey007 Member Since: 25 Sep 2015 Location: Cheshire Posts: 3748 |
Hello
I can only go off my noise, I had two... 1) a ping when moving slowly in forward and reverse. 2) A Rattle in 1st 2nd and 3rd, generally under power or when you lift off the accelerator. Sounded like a heat shield? Both apparently were down to a worn rear prop shaft joint, £38 part plus fitting. I've not collected car yet but will report back once driven |
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25th May 2016 9:01am |
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jaygti Member Since: 04 Nov 2012 Location: essex Posts: 377 |
It's almost definitely a U/J.
If it is it is serious! I would take the prop off, and drive with diff lock on until it's changed. If it goes completely the prop will bang about damaging everything it hits. Ahem.. I speak from experience here. If the front one goes it could enter the cabin by you feet , although I've never seen a picture of it , so it might just be an old wives tale. It's easy to check, just lay underneath a wobble the prop if there's any up or down, or side to side movement then it's had it. It's also easy to change. The first time it takes ages, but once you've done it, it's an easy 1/2hr job. Or you could just replace the whole prop as they're quite cheap. 2002 td5 90 county hardtop |
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25th May 2016 9:58am |
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Stacey007 Member Since: 25 Sep 2015 Location: Cheshire Posts: 3748 |
Mine was this on the rear of the prop the bearing had started coming lose and generally it looks ca broken
Look forward to driving it with out it rattling |
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25th May 2016 10:17am |
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huffhuff Member Since: 05 May 2016 Location: Home Counties Posts: 379 |
Sounds like a prop UJ.
When replacing, spend a few quid more and get a decent make (GNK or hardy spicer) with grease nipple. It might also be a good idea to get under and measure the UJ across the spider from cup-to-cup to ensure you get the right size UJ. Twice (I know, I know) I ordered what the system told me should have been on my 90 but twice it/I was wrong. |
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25th May 2016 11:10am |
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Stacey007 Member Since: 25 Sep 2015 Location: Cheshire Posts: 3748 |
^ How long should these last on normal use?
Assuming this cars on its first I'm happy with that... cheap to fix also |
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25th May 2016 12:54pm |
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jaygti Member Since: 04 Nov 2012 Location: essex Posts: 377 |
If they're greased regularly especially after wading they will last ages.
If you have a 2 " lift they will last a lot less though. There's no set amount , but between 25,000 to 60,000 miles at a guess. 2002 td5 90 county hardtop |
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25th May 2016 1:03pm |
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huffhuff Member Since: 05 May 2016 Location: Home Counties Posts: 379 |
I put a cheap £6 jobby on, lasted 3 months (no off-road, just driving 12 mile round trip 5 days a week) If you buy decent to start and regularly grease, it will last you a long time... |
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25th May 2016 4:57pm |
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The Hulk Member Since: 13 Apr 2016 Location: Aberdeenshire Posts: 81 |
Ok so here's what we've got.
This is the transfer box end of the front propshaft with some very obvious play in the UJ Click image to enlarge Closer inspection shows the bearings visible on one joint Click image to enlarge But there's something suspicious about the other side of the joint. Am I imagining it or is there a gap that shouldn't be there, and no bearings where there should be? Click image to enlarge Answers on a postcard please. In the meantime, I have engaged diff lock so my GF has an somewhat unusual RWD 90 But the birds nest has disappeared Mid Life; Live It! Ongoing thread: http://www.defender2.net/forum/topic45697.html 110 300Tdi Utility (Hulk) 90 300Tdi SW (GF's Tank) |
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25th May 2016 7:21pm |
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huffhuff Member Since: 05 May 2016 Location: Home Counties Posts: 379 |
Roller/pin bearings gone AWOL due to traversing slack/play?!?
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25th May 2016 7:29pm |
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