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Siwynne



Member Since: 04 Nov 2016
Location: West lancs
Posts: 197

England 
Rattle/buzz at 1500/1550 revs

When driving I get a rattle/ buzz as the engine hits 1500/1550 revs. It only happens under load and not on the way down the numbers. This leads me to believe it’s not a rotating piece that is rattling because it would do it as the revs drop. I can find only one thing loose that being the rod on the turbo actuator. I have bent and prodded at exhaust and turbo heat shields and been through most stuff on the outside of the engine. The other only thing I feel it could be is inside the exhaust as the truck had a new head a while back and something may have been dropped in.
Should the actuator rod be slack
Has anybody else experienced this sort of rattle

Post #728860 14th Sep 2018 7:06am
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LandRoverAnorak



Member Since: 17 Jul 2011
Location: Surrey
Posts: 5870

United Kingdom 2013 Defender 110 Puma 2.2 USW Orkney Grey

What engine?

To be honest though, it could be anything and will be difficult to track down by just pushing and prodding. Can you get somebody to rev the engine whilst you stand in front with the bonnet open? 

MY USW BUILD THREAD

Post #728867 14th Sep 2018 8:18am
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Siwynne



Member Since: 04 Nov 2016
Location: West lancs
Posts: 197

England 

2.2 Puma
I’ve done that but it only does it under load. I’m looking at setting the go pro up pointing at various parts and driving with the bonnet off to see I’ve ican get closer to the source
The post was more to see if anybody else had a similar rattle

Post #728937 14th Sep 2018 3:14pm
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NickMc



Member Since: 01 Oct 2014
Location: Norn Iron
Posts: 497

United Kingdom 2010 Defender 110 Puma 2.4 USW Keswick Green

Turbo heat shield?

Post #728970 14th Sep 2018 7:10pm
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custom90steve



Member Since: 21 Jan 2010
Location: South West England
Posts: 16176

United Kingdom 2007 Defender 90 Puma 2.4 SW Stornoway Grey

My guess is this too. ^^^^

Also check the red lifting eye on the back of the engine that it isn't loose. Watts ÷ Volts = Amps.
Amps X Volts = Watts

Post #728984 14th Sep 2018 8:11pm
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Dobby



Member Since: 23 May 2012
Location: East Seaxe
Posts: 127

Re: Rattle/buzz at 1500/1550 revs

Siwynne wrote:
When driving I get a rattle/ buzz as the engine hits 1500/1550 revs.


Mine does it too.. does yours stop if you take a sharp yank left or right at the steering wheel, while accelerating?

No rear engine lifting eye on mine, so can’t be that. I was thinking it could be injection timing.

Oddly though, when the engine is cold it still does it, but rises in pitch at the same time. Very odd.

Post #728996 14th Sep 2018 8:57pm
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Siwynne



Member Since: 04 Nov 2016
Location: West lancs
Posts: 197

England 

I’ve checked bolts holding turbo heat shield and have tried bending it up and driving bending it down and driving bending it left bending it right.

This is off a transit but my actuator rod moves like this. Not quite as bad but a potential candidate for the rattle.

Post #729056 15th Sep 2018 10:18am
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Siwynne



Member Since: 04 Nov 2016
Location: West lancs
Posts: 197

England 

Dobby mine doesn’t change with steering I don’t think but I’ll give it a go today.

Post #729058 15th Sep 2018 10:20am
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Caterham



Member Since: 06 Nov 2008
Location: Birmingham
Posts: 5017

England 2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey

NickMc wrote:
Turbo heat shield?


& me.

Post #729060 15th Sep 2018 10:44am
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Siwynne



Member Since: 04 Nov 2016
Location: West lancs
Posts: 197

England 

Next move is to remove heat shield and try that.

Post #729063 15th Sep 2018 11:16am
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Dobby



Member Since: 23 May 2012
Location: East Seaxe
Posts: 127

Siwynne wrote:
Dobby mine doesn’t change with steering I don’t think but I’ll give it a go today.


I could be imagining it, but I’m sure the noise went away as I was accelerating up a hill the other day, and had to ‘avoid’ something.

Post #729103 15th Sep 2018 5:31pm
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Siwynne



Member Since: 04 Nov 2016
Location: West lancs
Posts: 197

England 

I’ll also check the power steering pump then

Post #729118 15th Sep 2018 8:09pm
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