Ian Dunn Posted October 7, 2007 Share Posted October 7, 2007 Hi All Land Rover owners!!!! I have a problem with mine when it is swithced off thwe engine runs on does anyone know what could cause this we have checked all timeing etc but this is all ok Ian Cornwall Quote Link to comment Share on other sites More sharing options...
abn deuce Posted October 7, 2007 Share Posted October 7, 2007 can be defective switch , you could disconnect and see if it stops then or could be deposits on the cylinder head or the pistons which when they get hot can be enough to cause engine to diesel for a little while , in which case you need to clean them out , perhaps using an octane boost would help until you take the engine apart . Quote Link to comment Share on other sites More sharing options...
ArtistsRifles Posted October 7, 2007 Share Posted October 7, 2007 Could try dumpimg a bottle or two of Redex in the fuel tanks and see what comes out when you run the engine up!! :evil: Word of warning - make sure you are nowhere near anyones clean washing when doing so!! :-D :-D Quote Link to comment Share on other sites More sharing options...
Richard Farrant Posted October 7, 2007 Share Posted October 7, 2007 Hi All Land Rover owners!!!! I have a problem with mine when it is swithced off thwe engine runs on does anyone know what could cause this we have checked all timeing etc but this is all ok Ian, Not at all uncommon with the 2 1/4 engine. It is usually due to a red hot bit of carbon in the combustion chamber keeping the engine running although the ignition is switched off. As already said, the Redex tune up is worth trying, also you could stall it when switching off. On later 2 1/4 L/Rovers, the carb was fitted with a little device to cut the fuel at idle to stop this happening, when ignition is cut the valve shuts off. Richard Quote Link to comment Share on other sites More sharing options...
Bazz Posted October 7, 2007 Share Posted October 7, 2007 HI IAN, I'VE BEEN ROUND LR IN THE MILITARY FOR 30 YEARS AND HAVE HAD TO PUT UP WITH RUN ON ALL THIS TIME ON 2 1/4 na engines, we just got told by our REME lads when you switch off leave in gear,hand brake on and jump the clutch to stall the engine. Baz. Quote Link to comment Share on other sites More sharing options...
Tony B Posted October 7, 2007 Share Posted October 7, 2007 Daft as it may sound and I swear I'm not winding you up. Check the brake light switch, this can short onto the ignition wire and when you have the pedal depressed the engine won't stop. I've had 2 do this to me. If the engine has ben abused might be worth head off and de coke (now theres a blast from the past) Quote Link to comment Share on other sites More sharing options...
abn deuce Posted October 7, 2007 Share Posted October 7, 2007 an interesting tidbit I never would have thought of something like that happening :goodidea: Quote Link to comment Share on other sites More sharing options...
Tony B Posted October 7, 2007 Share Posted October 7, 2007 Neither had I, the first one took a month to figure out. :dunno: Quote Link to comment Share on other sites More sharing options...
fv1609 Posted October 7, 2007 Share Posted October 7, 2007 Does it have a solenoid fuel cut off that is jammed on or a voltage to it that continues after the ignition is turned off? Some S3 FFRs had the idle increased to 800-850 rpm & to stop run on, a solenoid operated fuel cut out was fitted. PS Sorry I see Richard has already suggested that! Quote Link to comment Share on other sites More sharing options...
Richard Farrant Posted October 7, 2007 Share Posted October 7, 2007 Does it have a solenoid fuel cut off that is jammed on or a voltage to it that continues after the ignition is turned off? PS Sorry I see Richard has already suggested that! Quite alright, old chap ;-) They were troublesome, and I have found that people have overcome an inop solenoid by opening the butterfly slightly with the idle screw, the fuel only being cut on the idle mixture passage normally. Quote Link to comment Share on other sites More sharing options...
hardyferret Posted October 7, 2007 Share Posted October 7, 2007 Note when using Redex, applied neat into intake making impressive clouds of smoke Do not get caught travelling with friend who was driving up Upton dual carriageway with no bonnet on series 1 80" sat in engine bay squirty bottle of Redex being injected whilst fiddling with carb and dist :-D :-D . I seem to remember the conversation started :oops: :oops: " And what do you think you are up to?" Joy of being an apprentice A little knowledge is bloody lethal :whistle: HF :roll: Quote Link to comment Share on other sites More sharing options...
Tony B Posted October 8, 2007 Share Posted October 8, 2007 Or go hairing down a country lane and meet A Merc coming the other way. The fact that the Landy had bad brakes no roof and the drivers seat wasn't bolted down plus a total disregard of seat belts contributed to the drivers spectacular flight. :dunno: Quote Link to comment Share on other sites More sharing options...
N.O.S. Posted October 8, 2007 Share Posted October 8, 2007 I had same problem once with my old minivan which strangely I've just mentioned in another thread - Accelerated like crazy, smoked something awful, wouldn't go over 30mph, ran on for ever after ignition turned off until stalled. Problem eventually traced to filling an empty fuel tank with a 5 gall. jerrycan of 28sec heating oil by mistake. Oh well.... Quote Link to comment Share on other sites More sharing options...
Ian Dunn Posted October 8, 2007 Author Share Posted October 8, 2007 Thanks for all the replies I think it mabe it needs a de-coke (but what do i do if i can only get pepsi?) it has slowly got worse this year, also i have trouble goig up hill, it lacks power! could this be caused by a build up of carbon as well? Ian Quote Link to comment Share on other sites More sharing options...
Tony B Posted October 8, 2007 Share Posted October 8, 2007 Stupid sounding trick but it works. Get engine running hot and then use a mist spray of distilled water and squirt gently into carb. Works with aero engines. spray circumspectly though. :-D Quote Link to comment Share on other sites More sharing options...
abn deuce Posted October 8, 2007 Share Posted October 8, 2007 If the deposits were bad enough you would get a pre ignition engine knock or pinging which would rob you of power.of course in a older engine by that I mean one with lots of miles on it you might also have very worn valves , to check for that you could do a compression test on the cylinders and see if you have only one or more cylinders that are no long doing anything useful. Quote Link to comment Share on other sites More sharing options...
andreadavide Posted October 9, 2007 Share Posted October 9, 2007 This isn't a Land Rover problem, it's a Land rover feature. Andrea Quote Link to comment Share on other sites More sharing options...
rambo1969 Posted October 9, 2007 Share Posted October 9, 2007 Give it a de-coke, it's easy to do and has always solved the problem with my landies. No timing belt to worry about, just un-bolt and head lifts off, make sure you have it skimmed though, even if it looks alright. Quote Link to comment Share on other sites More sharing options...
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