four-wheel-drive Posted July 4, 2017 Report Share Posted July 4, 2017 I have not come across this before a bit worrying seeing that Landrover go off like that Quote Link to comment Share on other sites More sharing options...
Medic1281 Posted July 4, 2017 Report Share Posted July 4, 2017 It used to happen when oil got into the turbo, then the engine would run on the oil instead of diesel and you've no way of stopping it until it runs out of oil and seizes or throws a rod. Some say blocking the air inlet helps but I wouldn't fancy being that close! Quote Link to comment Share on other sites More sharing options...
Gordon R Posted July 4, 2017 Report Share Posted July 4, 2017 It sounds familiar. Worn engine, starts sucking up the engine oil and uses that to keep running. Fuel cut off won't work. It continues until the engine oil is exhausted and the engine goes bang. https://en.wikipedia.org/wiki/Diesel_engine_runaway Quote Link to comment Share on other sites More sharing options...
walshie Posted July 4, 2017 Report Share Posted July 4, 2017 I know it used to happen sometimes with older diesels. I always thought you could purposely stall the engine to stop it. Shows what I know. Quote Link to comment Share on other sites More sharing options...
Hendrix's rifle Posted July 4, 2017 Report Share Posted July 4, 2017 The only way to stop it is to let it blow up or stall it. 5th or 6th hard on all brakes and hope for the best! Had to do it s good few times. Worst is when people don't check there oil and run it dry, then they come in so il refill it and the turbo sucks it all up because it's knackered from running dry! Quote Link to comment Share on other sites More sharing options...
Albert 888 Posted July 4, 2017 Report Share Posted July 4, 2017 My vw t25 petrol did something very similar. It went cold in the cab then started to over rev, put my foot on The clutch ignition off coasted to a stop,Engine still over raving,pulled the wires out the ignition, no joy,removed the dog and equipment out the back , disconected the battery still running high revs,at this point I had plooms out the exhaust, finally got into the engine bay and pulled the pipes of the manual fuel pump and and dizzy cap off,it eventually stopped. Later inspection found the left hand head had melted and the sparkplug was nowhere to be seen. Fit another engine in the end. Quote Link to comment Share on other sites More sharing options...
bluesj Posted July 5, 2017 Report Share Posted July 5, 2017 A lot of the big industrial engines have vales in the air intake to stop the engine in the event of a run away. Ive seen a small lister engine do it and a big v8 Detroit 2 stroke diesel Quote Link to comment Share on other sites More sharing options...
team tractor Posted July 5, 2017 Report Share Posted July 5, 2017 I watched a T4 do this opposite our workshop . He was filling the oil with it running. It took 5 minutes before it stopped and it ran after. Quote Link to comment Share on other sites More sharing options...
landy george Posted July 5, 2017 Report Share Posted July 5, 2017 I had it happen to my old 200tdi engine. Just fixed something, had a quick test drive up the road. The engine started revving it t*t's off. Lucky for me it only ran for about a minute & cut out. Not long after I had low oil pressure problems with it but then it only cost me £15 for the engine I didn't care Quote Link to comment Share on other sites More sharing options...
Dellbert Posted July 5, 2017 Report Share Posted July 5, 2017 (edited) Seen it happen to a Skoda Octavia that had been driven slowly all its life ,turbo suddenly burst into life dumped oil in the engine and trying to stall it broke the dual mass flywheel ........ Edited July 5, 2017 by Dellbert Quote Link to comment Share on other sites More sharing options...
Twistedsanity Posted July 5, 2017 Report Share Posted July 5, 2017 Diesleing, common on older plant equipment as said previously it's usually when the engine sucks oil up the side of the piston and runs on it, we used to carry.a tennis ball in our tool kit to shove down the air intake when I was doing plant fitting, if the tennis ball fails best option is to stand well back because it's gonna grenade itself,unlike petrol engines diesels don't need any electrics to run so it can't be disconnected or turned off Quote Link to comment Share on other sites More sharing options...
ditchman Posted July 5, 2017 Report Share Posted July 5, 2017 A lot of the big industrial engines have vales in the air intake to stop the engine in the event of a run away. Ive seen a small lister engine do it and a big v8 Detroit 2 stroke diesel detroit desiels have what is called "a shut down flap"...as you rightly point out.... more often than not ..the reasons that used to happen on older TD landies....was for... split boost diaphram in injector pump..this would allow fuel instead of air to travel up the pipe into the turbo charger...this started to happen when "eco desiel fuel came on at the pumps"...it melted the rubber diaphram... early desiel pistons were not teflon coated and with the advent of turbo's the heat increased and pistons developed holes...resulting in crankcase pressure in the early days of landy run away...a lot of garages...took advantage of making huge profits, putting new pistons in, with a total engine stripdown....when all they needed to do was cough up £20.00 for a replacement boost diaphram..... its not often a engine will run away as a result of "blown seals" in a turbo......the enjines will smoke like **** but will not run away....for an engine to run away cause of worn pistons is unusal... everything is down to maintenance....a lot of people buy landies and assume you dont have to put water and oil in them or clean them or grease them as they are rugged landy vehicles....they need just as much care as all other vehicles............. the only way to stop runaway is to engage 4/5th gear apply hand brake and let the clutch out......if the clutch is not worn it will stop the engine ...if the clutch is worn you are stuffed.. Quote Link to comment Share on other sites More sharing options...
four-wheel-drive Posted July 5, 2017 Author Report Share Posted July 5, 2017 I did not now that it was as common as it would seem it is one thing that I found odd was diesels when they are not running correctly they belch out black smoke yet these ones seem to be belching out white smoke. Quote Link to comment Share on other sites More sharing options...
Paul223 Posted July 5, 2017 Report Share Posted July 5, 2017 Put it in gear and let the clutch up! It's as easy as you that Blew a turbo on a truck a week back on an approach to a busy roundabout, started to run on its own oil, I was making a left turn so carried on 50 yards past the roundabout, put the truck in a high gear and stepped on the brake. Quote Link to comment Share on other sites More sharing options...
Red-dot Posted July 5, 2017 Report Share Posted July 5, 2017 Anyone remember Commer two stroke diesels with a Supercharger? They would backfire when the engine was being laboured on a steep hill and then run in reverse....SCAREY!! Quote Link to comment Share on other sites More sharing options...
ditchman Posted July 5, 2017 Report Share Posted July 5, 2017 I did not now that it was as common as it would seem it is one thing that I found odd was diesels when they are not running correctly they belch out black smoke yet these ones seem to be belching out white smoke. more often and not the reasons why desiels smoke is they are timed incorrectly...........some of the older landies with timing chains are a total and utter bitch to get right.... Quote Link to comment Share on other sites More sharing options...
JDog Posted July 5, 2017 Report Share Posted July 5, 2017 detroit desiels have what is called "a shut down flap"...as you rightly point out.... more often than not ..the reasons that used to happen on older TD landies....was for... split boost diaphram in injector pump..this would allow fuel instead of air to travel up the pipe into the turbo charger...this started to happen when "eco desiel fuel came on at the pumps"...it melted the rubber diaphram... early desiel pistons were not teflon coated and with the advent of turbo's the heat increased and pistons developed holes...resulting in crankcase pressure in the early days of landy run away...a lot of garages...took advantage of making huge profits, putting new pistons in, with a total engine stripdown....when all they needed to do was cough up £20.00 for a replacement boost diaphram..... its not often a engine will run away as a result of "blown seals" in a turbo......the enjines will smoke like **** but will not run away....for an engine to run away cause of worn pistons is unusal... everything is down to maintenance....a lot of people buy landies and assume you dont have to put water and oil in them or clean them or grease them as they are rugged landy vehicles....they need just as much care as all other vehicles............. the only way to stop runaway is to engage 4/5th gear apply hand brake and let the clutch out......if the clutch is not worn it will stop the engine ...if the clutch is worn you are stuffed.. This thread is right up your street Ditchy. Quote Link to comment Share on other sites More sharing options...
ditchman Posted July 5, 2017 Report Share Posted July 5, 2017 This thread is right up your street Ditchy. Hmmmm... ...when you come a visiting you will see the engine as it should be....no smoke....and you can balance a coin on it whilst it is running.....when you saw it last ...the timing was not right and the injector pump was in dire need of servicing.............. Quote Link to comment Share on other sites More sharing options...
Davyo Posted July 5, 2017 Report Share Posted July 5, 2017 (edited) So when you follow a deisel that is accelerating hard and its pouring out loads of black stuff,could it potentially do this? I've had a few deisel cars but always had them serviced so never had black smoke leaving the tailpipe like some I've seen.Always put it down to poor servicing or lack of. Edited July 5, 2017 by Davyo Quote Link to comment Share on other sites More sharing options...
Paul223 Posted July 5, 2017 Report Share Posted July 5, 2017 The smoke produced is thick, fills the road, regular black smoke is poor or incomplete combustion of fuel, due to either worn engine parts or too much fuel being delivered or, on occasion, poor servicing. Quote Link to comment Share on other sites More sharing options...
ditchman Posted July 5, 2017 Report Share Posted July 5, 2017 So when you follow a deisel that is accelerating hard and its pouring out loads of black stuff,could it potentially do this? I've had a few deisel cars but always had them serviced so never had black smoke leaving the tailpipe like some I've seen.Always put it down to poor servicing or lack of. when a deseil goes into "overrun"....you will rekonise it ...believe me...a bit of black smoke out of the tailpipe is nothing........imagine a destroyer steaming up and down the beach at D-Day landings making smoke to hide a convoy...then you get the idea... Quote Link to comment Share on other sites More sharing options...
handy4454 Posted July 5, 2017 Report Share Posted July 5, 2017 Reminds me of a day many years ago in Ditchies part of the world, Brundall, I was an apprentice in Bells boatyard and we were servicing the hire fleet ready for another weeks thrashing. Petrol engines were far more numerous than diesels in those days and combined with open flame gas water heaters ( Ascots ) there were plenty of mishaps so one of the options to convert to diesel was to buy MOT failure Post Office vans with a 1.5 BMC do a rough water cooled manifold conversion to pump river water down the exhaust pipe and bingo, no more petrol mishaps. A major drawback to this approach was that the engines had probably done a quarter of a million miles and were well worn so on a warm day after a long run it was fairly common for the oil to get past the rings and the engine would run away. This particular morning one of the cruisers was late back when the foreman said bloody hell someones in a hurry as a boat came into view pouring black smoke behind it, as it got closer we recognized our missing cruiser with a panic stricken hirer jumping about waving his arms, he overshot the quay and disappeared down river before we heard an enormous bang, the foreman said to me you better take a boat and tow him in boy, that wont be on hire next week. Atb Steve. Quote Link to comment Share on other sites More sharing options...
ditchman Posted July 5, 2017 Report Share Posted July 5, 2017 Reminds me of a day many years ago in Ditchies part of the world, Brundall, I was an apprentice in Bells boatyard and we were servicing the hire fleet ready for another weeks thrashing. Petrol engines were far more numerous than diesels in those days and combined with open flame gas water heaters ( Ascots ) there were plenty of mishaps so one of the options to convert to diesel was to buy MOT failure Post Office vans with a 1.5 BMC do a rough water cooled manifold conversion to pump river water down the exhaust pipe and bingo, no more petrol mishaps. A major drawback to this approach was that the engines had probably done a quarter of a million miles and were well worn so on a warm day after a long run it was fairly common for the oil to get past the rings and the engine would run away. This particular morning one of the cruisers was late back when the foreman said bloody hell someones in a hurry as a boat came into view pouring black smoke behind it, as it got closer we recognized our missing cruiser with a panic stricken hirer jumping about waving his arms, he overshot the quay and disappeared down river before we heard an enormous bang, the foreman said to me you better take a boat and tow him in boy, that wont be on hire next week. Atb Steve. hhhahhahhahaahhh.....good one Quote Link to comment Share on other sites More sharing options...
bornfree Posted July 5, 2017 Report Share Posted July 5, 2017 I've heard of a few of the 2.2 ford engined landrovers doing this. In fact a gamekeeper mate had his do it less than a year old and 14,000 miles. He stalled it and saved the engine but the dealers fitted a complete new engine. Quote Link to comment Share on other sites More sharing options...
gustaff Posted July 6, 2017 Report Share Posted July 6, 2017 detroit desiels have what is called "a shut down flap"...as you rightly point out.... more often than not ..the reasons that used to happen on older TD landies....was for... split boost diaphram in injector pump..this would allow fuel instead of air to travel up the pipe into the turbo charger...this started to happen when "eco desiel fuel came on at the pumps"...it melted the rubber diaphram... early desiel pistons were not teflon coated and with the advent of turbo's the heat increased and pistons developed holes...resulting in crankcase pressure in the early days of landy run away...a lot of garages...took advantage of making huge profits, putting new pistons in, with a total engine stripdown....when all they needed to do was cough up £20.00 for a replacement boost diaphram..... its not often a engine will run away as a result of "blown seals" in a turbo......the enjines will smoke like **** but will not run away....for an engine to run away cause of worn pistons is unusal... everything is down to maintenance....a lot of people buy landies and assume you dont have to put water and oil in them or clean them or grease them as they are rugged landy vehicles....they need just as much care as all other vehicles............. the only way to stop runaway is to engage 4/5th gear apply hand brake and let the clutch out......if the clutch is not worn it will stop the engine ...if the clutch is worn you are stuffed.. ok if a manual box destruction if an auto box Quote Link to comment Share on other sites More sharing options...
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