defender 90 1987 Posted January 14, 2023 Share Posted January 14, 2023 I bought my first defender the other day drove home 37 miles perfectly started it up today and started immediately and ticks over perfectly but when revved up it seems to miss and a lot of white smoke out of exhaust I spoke to a friend and he said take inlet pipe off of Tubo and see if oil in there there is a small amount but not loads please advise on what to check next or what problem is cheers Josh Quote Link to comment Share on other sites More sharing options...
western Posted January 14, 2023 Share Posted January 14, 2023 Clean it all out, on the TD & Tdi engines a small amount of oil in air intake comes via the crankcase breather system, not really anything to worry about, just clean it out every filter change at 6000 mile intervals. 1 Quote Link to comment Share on other sites More sharing options...
steve b Posted January 14, 2023 Share Posted January 14, 2023 Welcome to the forum. Is it a 2.5TD? Steve 1 Quote Link to comment Share on other sites More sharing options...
defender 90 1987 Posted January 14, 2023 Author Share Posted January 14, 2023 @steve b it’s a 300tdi mate Quote Link to comment Share on other sites More sharing options...
defender 90 1987 Posted January 14, 2023 Author Share Posted January 14, 2023 @westernthanks what could be causing it to miss and heavy white smoke it only does it a a cirtain amount of throttle if flat out no problem if ticking over no problem just seems to do it about half throttle Quote Link to comment Share on other sites More sharing options...
92a Posted January 14, 2023 Share Posted January 14, 2023 I'd put a new fuel filter on , this and the lift pump are often the cause of problems , has it always been a 300tdi or is it a conversion? Quote Link to comment Share on other sites More sharing options...
defender 90 1987 Posted January 14, 2023 Author Share Posted January 14, 2023 @92a will do 👍 it’s a conversion I think Quote Link to comment Share on other sites More sharing options...
western Posted January 14, 2023 Share Posted January 14, 2023 Definitely a conversion, the 200tdi came in 1990 along with the Defender name, 1 Quote Link to comment Share on other sites More sharing options...
miketomcat Posted January 14, 2023 Share Posted January 14, 2023 White smoke is normally water, from experience it's likely either a blown head gasket or a cracked head. I've had both cause white smoke and a miss fire I'm afraid. Sorry that's bad news. Mike Quote Link to comment Share on other sites More sharing options...
defender 90 1987 Posted January 14, 2023 Author Share Posted January 14, 2023 @miketomcatthought that just seems strange it is perfect when ticking over and flat out just like half throttle it does it Quote Link to comment Share on other sites More sharing options...
defender 90 1987 Posted January 14, 2023 Author Share Posted January 14, 2023 @westernah right 👍 this is 300tdi does that mean it’s a land rover 90 not defender 90 then Quote Link to comment Share on other sites More sharing options...
Blanco Posted January 14, 2023 Share Posted January 14, 2023 Check your valve clearances, ..... I bet it has dropped a shim thingy, .... bin there! 1 Quote Link to comment Share on other sites More sharing options...
stevebus Posted January 14, 2023 Share Posted January 14, 2023 Hello fella, like Mike Tom cat says it does sound to me aswell like an head gasket problem, but before you start pulling it all to bits, the lad who does the MOTs on my wagon had some sort of test that you put a cap on the expansion tank and some liquid in a vile attached to the cap, if the liquid turns purple or green, I can't remember what colour it was now it means that you have exhaust fumes in the system and you pretty sure it is the gasket or head, hopefully not the head for your sake. I can't remember the name of the test kit but someone on here is bound to know and my fella only wanted a fiver for the test he did. Just a process of elimination fella. Good luck 1 Quote Link to comment Share on other sites More sharing options...
Snagger Posted January 15, 2023 Share Posted January 15, 2023 White smoke is usually coolant, but can be unburnt fuel. Given that you get the smoke and misfire together, in this instance I’d suspect it’s fuel (as an aside, the white “smoke” that aerobatic teams like the Red Arrows trail is sprayed diesel, the colours being added dyes). I suspect you have a dirty injector. As recommended, change the fuel filter. I’d also add a strong dose of a decent fuel injector cleaner into half a tank of diesel, run to near empty before refilling. I like Forte or Wynns, but other brands may have a good reputation too. If it is coolant, you should see a gradual trend of loss from the expansion tank. Keep an eye on it for a while (good to check weekly anyway). The marker dyes and UV lamps are good for finding external leaks, but for detecting internal leaks, you really need the “sniff test” chemical testers that react with a sample taken from the expansion tank, looking for traces of exhaust gasses in the coolant. Quote Link to comment Share on other sites More sharing options...
miketomcat Posted January 15, 2023 Share Posted January 15, 2023 Mine gave a good puff on start up then cleared, it would run fine but as you came off the throttle it would start to smoke again. When it was head gasket (blown between no3 pot and the middle triangular water way) it would excessively pressurise the header tank. On the occasion it was a cracked head it blew into no2 exhaust port and was much more difficult to find. You can just see it vertically above the valve stem (picture is on its side). Mike Quote Link to comment Share on other sites More sharing options...
western Posted January 15, 2023 Share Posted January 15, 2023 12 hours ago, defender 90 1987 said: @westernah right 👍 this is 300tdi does that mean it’s a land rover 90 not defender 90 then Yes, 👍 Quote Link to comment Share on other sites More sharing options...
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