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horus1970



Member Since: 27 Jul 2016
Location: north east
Posts: 105

England 1995 Defender 110 300 Tdi HT Portofino Red
300tdi smoking and running rough
was driving home and my 300tdi started making a slight chugging noise like a steam train then about 5 mins later i lost most of my power and lots of whitish grey smoke out of exhaust,
it starts straight up first turn of key but runs rough and engine shaking, smoke smells like diesel or oil,
took intercooler hose off top and it had a coating of oil in it,
no bubbles in expansion tank and not pressure under rocker cover when cap off just usual slight putting of clean air,
went around the block and its like its only running on 3 cylinders, any ideas lads? Sad
Post #721454 4th Aug 2018 5:04pm
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horus1970



Member Since: 27 Jul 2016
Location: north east
Posts: 105

England 1995 Defender 110 300 Tdi HT Portofino Red
i think it will be either injectors or turbo charger or cylinder head, but need to narrow it down as all of those bits are expensive,, Shocked
Post #721456 4th Aug 2018 5:09pm
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dailysleaze



Member Since: 23 May 2013
Location: United Kingdom
Posts: 237

United Kingdom 
The first easy thing to check is take the rocker cover off and see if the rocker shaft is snapped and that the pads between the valve tops and rocker arms are still all there.
Post #721462 4th Aug 2018 6:09pm
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horus1970



Member Since: 27 Jul 2016
Location: north east
Posts: 105

England 1995 Defender 110 300 Tdi HT Portofino Red
exellent, will do that first thing tomorow, would that cause lumpy running and lots of smoke?
Post #721474 4th Aug 2018 7:23pm
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Bps



Member Since: 14 Feb 2016
Location: Lancashire
Posts: 783

United Kingdom 
Crack the injector pipes in turn and see if anything changes, may help pinpoint a cylinder
Post #721481 4th Aug 2018 7:59pm
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horus1970



Member Since: 27 Jul 2016
Location: north east
Posts: 105

England 1995 Defender 110 300 Tdi HT Portofino Red
tried that but nothing seemed to change, ran the same after i slackened each one individualy, im curious to what the chuffing sound was like a train about 5 mins before the smoke arrived?
Post #721489 4th Aug 2018 8:26pm
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Bps



Member Since: 14 Feb 2016
Location: Lancashire
Posts: 783

United Kingdom 
Have you checked you’ve not split the intercooler? Are all the pipes connected and not split?
Post #721492 4th Aug 2018 8:58pm
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yostumpy



Member Since: 01 Aug 2010
Location: n/kent
Posts: 327

check ( take off and inspect internally) the IC hose from the turbo, the first one with the 90 deg bend. They de lamiinate and implode, blocking the passage of air, possibly split. check others as well.
check ( when stone cold) remove the expansion bottle cap, if there is an audible psssst! then system is pressurized, ie head gasket failure.
check, when running, some soapy water in a squedgy spray (garden spray) bottle, and squirt around the rear of the head / block interface, and look for bubbles.

good luck, and keep us posted.
Post #721497 4th Aug 2018 9:32pm
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horus1970



Member Since: 27 Jul 2016
Location: north east
Posts: 105

England 1995 Defender 110 300 Tdi HT Portofino Red
have replaced intercooler pipes with new silicone ones, i did notice the intercooler itself had a tiny bit of oil at the top on the finns, maybe starting to go, but would that cause rough running and smoke?
Post #721506 5th Aug 2018 12:15am
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Whirly90



Member Since: 01 Sep 2016
Location: Ampshire
Posts: 398

England 1993 Defender 90 300 Tdi HT Keswick Green
Has a heater plug wound itself out? That would explain the chuffing.
Post #721508 5th Aug 2018 3:05am
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horus1970



Member Since: 27 Jul 2016
Location: north east
Posts: 105

England 1995 Defender 110 300 Tdi HT Portofino Red
will check that now mate cheers.
Post #721539 5th Aug 2018 10:54am
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horus1970



Member Since: 27 Jul 2016
Location: north east
Posts: 105

England 1995 Defender 110 300 Tdi HT Portofino Red
found problem, took rocker cover off and second rocker arm down from front of head has pushrod thats just unbelievably wobbly and loose? anyone know what happened and how to fix? is it head off job? gutted
Post #721547 5th Aug 2018 11:38am
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dorsetsmith



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

https://www.landroverworkshop.com/diagrams...pets_53201

https://www.landroverworkshop.com/diagrams...haft_53194

check for damage to start with

1. tappet adjustment screw and nut missing or loss
2. push rod bent or ends damage
3. valve spring broken
4. cam follower damage
5. valve bent and jam open
Post #721573 5th Aug 2018 2:55pm
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horus1970



Member Since: 27 Jul 2016
Location: north east
Posts: 105

England 1995 Defender 110 300 Tdi HT Portofino Red
thanks mate, will delve back into it tomorow
Post #721591 5th Aug 2018 5:28pm
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