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Home > Puma (Tdci) > 2.2 Tdci piston issue or injector seal fail.
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fab.rob



Member Since: 03 Nov 2018
Location: Wokingham
Posts: 29
United Kingdom 2013 Defender 110 Puma 2.2 XS CSW Santorini Black
2.2 Tdci piston issue or injector seal fail.
Hi there, had an issue recently where the 110 failed with codes relating to the turbo and cylinder no 2 loss of compression. Puff of smoke through the internal vent, vehicle running very lumpy as you would expect. Have had a chance to push a camera into the cylinder and pics attached. Can anyone tell me if this looks like a melted piston or not? Thanks all.
Post #930404 19th Nov 2021 5:49pm
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Co1



Member Since: 19 Aug 2018
Location: North Yorkshire
Posts: 3681
United Kingdom 2013 Defender 90 Puma 2.2 HT Loire Blue
Hard to tell. Don’t know if it is the light from the camera, but it looks almost milky looking.
Post #930410 19th Nov 2021 6:21pm
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fab.rob



Member Since: 03 Nov 2018
Location: Wokingham
Posts: 29
United Kingdom 2013 Defender 110 Puma 2.2 XS CSW Santorini Black
It's the spot that I am looking at in the dark area and thinking it could be a hole. The engine has been running with a hydrogen on demand system, these are supposed to keep your engine spotless from a carbon point of view and to be fair the injectors looked nearly New. I have stripped the tips and given them a thorough clean anyways, are burnt holes huge or small like in the picture?
Post #930421 19th Nov 2021 7:19pm
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Big Harold



Member Since: 09 Jul 2018
Location: nsw
Posts: 71
Australia 2015 Defender 130 Puma 2.2 HCPU Alpine White
Can't see pics.
Hole will be in edge of piston bowl.
If its still running but rough with lots of blow by chances are holed piston.
Mark
Post #930447 19th Nov 2021 10:24pm
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 4554

Click image to enlarge
Post #930450 19th Nov 2021 10:33pm
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fab.rob



Member Since: 03 Nov 2018
Location: Wokingham
Posts: 29
United Kingdom 2013 Defender 110 Puma 2.2 XS CSW Santorini Black
So you think unlikely to be unseated injector?
Post #930469 20th Nov 2021 8:06am
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Big Harold



Member Since: 09 Jul 2018
Location: nsw
Posts: 71
Australia 2015 Defender 130 Puma 2.2 HCPU Alpine White
How do you know that cylinder 2 has loss of compression?
Compression test or OBD11 fault code.
Mine came up with cylinder 2 miss fire.
All diagnostics pointed to cylinder 2. Pulled injector and sent it for testing came back as failed.
Sent to dealer where they checked the current draw came back as cylinder 2 low.
Pulled head found cylinder 4 holed piston.
Mark
Post #930470 20th Nov 2021 8:28am
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Big Harold



Member Since: 09 Jul 2018
Location: nsw
Posts: 71
Australia 2015 Defender 130 Puma 2.2 HCPU Alpine White

Hole will be in line with pin.
Post #930472 20th Nov 2021 8:48am
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fab.rob



Member Since: 03 Nov 2018
Location: Wokingham
Posts: 29
United Kingdom 2013 Defender 110 Puma 2.2 XS CSW Santorini Black
Thanks BH, still have a small hope that it might be unseated injector. The funny thing is that the injector looked almost like new from that cylinder, virtually no carbon on the tip. The hydrogen on demand system certainly seems to be doing the promised job of keeping the worst of the carbon at bay.
Post #930557 21st Nov 2021 8:15am
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fab.rob



Member Since: 03 Nov 2018
Location: Wokingham
Posts: 29
United Kingdom 2013 Defender 110 Puma 2.2 XS CSW Santorini Black
Can pistons be removed from the bottom of the engine through the sump without removing the crank? Or is this a full strip down?
Post #930558 21st Nov 2021 8:16am
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