Chubby M Posted April 14, 2021 Share Posted April 14, 2021 Hi all, been a while but I've finally got a running truck (all be it still some rough edges). One bit I'm struggling with and could really use some sage advice... 1985 running with a 19J 2.5 turbo diesel unit. I had a LR specialist replace the timing belt / waterpump etc. as I couldn't get it done. I now though have a very blue fog machine - all revs, constant hot and cold not just start up etc... (bit disappointed....). The head is fine (I checked that before the rebuild, the oil scavenge rings / bores are fine. Replacement turbo which also looks to be fine and not leaking oil in the air flow. With a constant blue acrid smoke, hot or cold, I think my last port of call is the fuel injection timing - but I'm lost grand scale on this one. Haynes manual has confused the hell out of me. Can anyone please point me at a simple "how to" to 1. check this may be the issue and 2. how to adjust / retime if required. Really appreciate any thoughts. Chubby. Quote Link to comment Share on other sites More sharing options...
monkie Posted April 14, 2021 Share Posted April 14, 2021 Firstly, blue smoke is often burning oil. Unburnt diesel is white smoke and can be clouds of it, it will smell strongly of diesel and sting your eyes. Oil in a 19J can be from cracked pistons. If it is unburnt fuel down to advanced timing you can set and adjust quite easily on the 19J. To check the timjng it is possible to lock the engine at TDC and the injection pump using special tools available on ebay. There is a hole at the bottom of the flywheel housing underneath the vehicle to lock the crank at TDC and there is a small bolt in the side of the injection pump where you can screw in a spring loaded tool. It will pop into the pump when it rotated to the correct potion for TDC. Failing all this, you can make an adjustment to the pump timing by rotating the injection pump insitue without removing the timing cover and belt. To do this, slacken off all 4 fuel lines to the injectors, loosen the rear pump mount and slackening off the 3 mounting nuts that hold the pump on the rear of the engine timing case. This will allow you to rotate the pump a small amount either way. Before you do this, Mark the pump in relation to the timing case so you know where you started from. From memory rotating the injection pump anti clockwise (when looking at the engine from the front) will retard the injection timing. Having it slightly retarded will reduce/eliminate white smoke and make for a smoother running engine albeit slightly less available power. Quote Link to comment Share on other sites More sharing options...
steve b Posted April 14, 2021 Share Posted April 14, 2021 Too Advanced is usually loud diesel knock and possibly black smoke Blue smoke can be oil but equally could well be retarded timing under these circumstances . As said above , using timing pin kit to position the crank and removing the small plate on the cover to show the FIP pulley the FIP pin should go in through the pulley hub . If it doesn't then rotating the pump body as said above will bring it in line . viewed from the back of the timing belt chest , clockwise to advance and opposite to retard . Steve 1 Quote Link to comment Share on other sites More sharing options...
monkie Posted April 14, 2021 Share Posted April 14, 2021 Ah, yes I got it the wrong way round. Absolutely as above. Quote Link to comment Share on other sites More sharing options...
monkie Posted April 14, 2021 Share Posted April 14, 2021 Ah, yes I got it the wrong way round. Absolutely as above. Quote Link to comment Share on other sites More sharing options...
Chubby M Posted April 16, 2021 Author Share Posted April 16, 2021 Steve B ad Monkie, much appreciated. Ebay here I come.... thanks again chaps - very much appreciated. Chubby Quote Link to comment Share on other sites More sharing options...
steve b Posted April 16, 2021 Share Posted April 16, 2021 No worries , let us know how it goes Steve Quote Link to comment Share on other sites More sharing options...
monkie Posted April 16, 2021 Share Posted April 16, 2021 These images from my 19J rebuild a few years ago show the crank locking pin and the tool in injection pump. Obviously the pin in the flywheel picture was taken with the gearbox off to illustrate how the pin sits in a groove in the flywheel Quote Link to comment Share on other sites More sharing options...
Chubby M Posted April 28, 2021 Author Share Posted April 28, 2021 Worked like a charm - thanks gents!! Quote Link to comment Share on other sites More sharing options...
steve b Posted April 28, 2021 Share Posted April 28, 2021 Good to hear Did it need advancing? Steve Quote Link to comment Share on other sites More sharing options...
Chubby M Posted April 30, 2021 Author Share Posted April 30, 2021 Yes - felt like quite a bit which I was surprised by. A bit trial and error bu running so much smoother too,... - no more fog machine 🙂 Quote Link to comment Share on other sites More sharing options...
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