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adseybear



Member Since: 08 Oct 2009
Location: Vancouver, Canada
Posts: 260

Canada 
Can anyone identify this noise?
Ok, so I’ve been chasing a rattling type sound for a while now. Not sure how it comes across on your speakers etc, but it’s a metallic type tapping/rattling.

https://youtube.com/shorts/VFxQRVBn2O0?feature=share

It goes away the second you remove the belt, so started throwing money at the ancillaries.

Poorly fitted cheap alternator replaced with new Denso unit. New belt tensioner. Noise remained.

Found a bit of play in the water pump and power steering pump, both original to the best of my knowledge so decided to replace both with new OEM units.

Noise remains.

I’m stumped. Only thing left is crank damper, but with a bar on that it doesn’t have excessive play, no squeaks on shut down, and this noise goes away as the engine warms up.

So I turn to you guys for suggestions…. 2003 Defender 90 Td5 CSW Belize Green - "Betty"
1958 Series IIA 109 Station Wagon - "Randolph" - Awaiting Restoration
2019 Jeep Wrangler JL Rubicon - SOLD
2006 Volvo V70 D5 - Ocean Race Edition, SOLD
2003 VW Passat Estate 1.9TDI - SOLD
2008 BMW 320D M Sport Estate - SOLD
2001 Defender 90 Td5 Hard Top - SOLD
Post #999278 9th Jul 2023 4:46am
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TexasRover



Member Since: 24 Nov 2022
Location: Paris
Posts: 1002

France 2002 Defender 110 Td5 DCPU Chawton White
The water pump is mounted behind and part of the power steering pump. The fan is mounted to just an idler which if it has a bit of play could be the culprit?

Could it just be a belt chirp, did you try and wet it a bit to see if the noise goes away?
Post #999300 9th Jul 2023 8:58am
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adseybear



Member Since: 08 Oct 2009
Location: Vancouver, Canada
Posts: 260

Canada 
After some pondering I’ve concluded it HAS to be the crank damper.

Will pull the old one off and take a look today. 2003 Defender 90 Td5 CSW Belize Green - "Betty"
1958 Series IIA 109 Station Wagon - "Randolph" - Awaiting Restoration
2019 Jeep Wrangler JL Rubicon - SOLD
2006 Volvo V70 D5 - Ocean Race Edition, SOLD
2003 VW Passat Estate 1.9TDI - SOLD
2008 BMW 320D M Sport Estate - SOLD
2001 Defender 90 Td5 Hard Top - SOLD
Post #999345 9th Jul 2023 4:20pm
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geobloke



Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

United Kingdom 
YEs that sounds like the harmonic can damper. When it gets that bad it is because the rubber damping material has parted company with the metal allowing the two halves of the damper to clack against each other.

It is not a bad job, but you do need a BIG torque wrench and lever to get the bolt off and back on again.

There is a good How To on Discovery 2's website http://www.discovery2.co.uk/CrankPulley.html

Thumbs Up
Post #999363 9th Jul 2023 6:41pm
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adseybear



Member Since: 08 Oct 2009
Location: Vancouver, Canada
Posts: 260

Canada 
Success it was the crank damper.

Getting it off was relatively easy actually, used the timing pin to lock the engine at the flywheel, and with a breaker bar it came off fairly easy, I suspect it wasn't torqued up all the way. 2003 Defender 90 Td5 CSW Belize Green - "Betty"
1958 Series IIA 109 Station Wagon - "Randolph" - Awaiting Restoration
2019 Jeep Wrangler JL Rubicon - SOLD
2006 Volvo V70 D5 - Ocean Race Edition, SOLD
2003 VW Passat Estate 1.9TDI - SOLD
2008 BMW 320D M Sport Estate - SOLD
2001 Defender 90 Td5 Hard Top - SOLD
Post #1000345 16th Jul 2023 1:02am
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Procta



Member Since: 03 Dec 2016
Location: Sunderland
Posts: 5132

United Kingdom 
Thumbs Up
investing in the correct locking tool for the engine, can make life that much easier. when i did the head gasket on the Kseries engine, Locking it at the flywheel made a massive difference in helping me undo the crank pully. I know its the extra cost and another step to lock the engine, but its worth it to help things out Thumbs Up Defender TD5 90 ---/--- Peugeot 306 HDI hatch back

Success is 90% Inspiration and 4 minutes Preparation # you can make it!
Post #1000346 16th Jul 2023 1:34am
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adseybear



Member Since: 08 Oct 2009
Location: Vancouver, Canada
Posts: 260

Canada 
Yeh, also bought the tool to set the front crank seal to the right depth. Running this thing in Canada means I’m on my own so need all the help I can get to do things right! 2003 Defender 90 Td5 CSW Belize Green - "Betty"
1958 Series IIA 109 Station Wagon - "Randolph" - Awaiting Restoration
2019 Jeep Wrangler JL Rubicon - SOLD
2006 Volvo V70 D5 - Ocean Race Edition, SOLD
2003 VW Passat Estate 1.9TDI - SOLD
2008 BMW 320D M Sport Estate - SOLD
2001 Defender 90 Td5 Hard Top - SOLD
Post #1000348 16th Jul 2023 1:42am
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Procta



Member Since: 03 Dec 2016
Location: Sunderland
Posts: 5132

United Kingdom 
Thumbs Up i owned a rover metro, and somethings you were on your own, like the suspension. So i was my own support. me and my dad have learned a lot from the rover metro days, we now get the proper tools in, and replacement bolts a long with the parts. We have had simple jobs turn into a right nightmare! But we have had jobs that should have been a nightmare work out like a dream. ( fuel pump on mine, was supposed to have been a pain, but as soon as the seals etc were settled. We were laughing. ( i bought the proper locking tool for that too) Defender TD5 90 ---/--- Peugeot 306 HDI hatch back

Success is 90% Inspiration and 4 minutes Preparation # you can make it!
Post #1000349 16th Jul 2023 1:51am
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