Hair Bear Bunch

Looks like a winter project so I'll let you know! Oh how I'm looking forward to this...

Hi All, I've been using the glow plugs for anything up to a minuite. Now, when it's running there's no perceptible smoke at all. When it first starts from cold I'm sure I've heard fog warnings on the local radio, if I had to give a colour I think white is best description, but it clears within 30 secs. or so. The 'Carbon' word has appeared again. I think I see a pattern forming here...

Hi, Thanks everyone! What a great response. So to answer some questions... Cold starting? It's a pig! Even holding the heaters for as long as I dare doesn't help. Hot starting, on the button every time. It doesn't burn any oil, but it does loose a little water over a days running. I guess about a pint. The crankcase breather is a small rubber pipe direct off the side cover to the inlet manifold. The aircleaner is best described as a "K&N" style two sheets of tin with a wire gauze/mesh arrangement sandwiched between. It doesn't appear to smoke at all. The heat exchanger has "Bowman" cast into it, as to any other parts I've no idea. Off to get a gasket set then...

Hi, Thanks for your help. I would have thought a sticking valve to produce a misfire of some sort? Still, it looks like a head off type job but will certainly give RedX a try first. Now, the steel ruler. A trick we used to use on tractor a lot, or any diesel engine as long as it's solidly mounted. Hold one end of the ruler to your ear, then rest the other end firmly on each injector in turn. You should be able to distiguish a non firing cylinder as it will have a diferent sound. Don't try it on a diesel car as the engine generally jumps around too much and could cause the ruler to give more than a nasty bruise! Again, thanks for the info.

Hi! New here so be gentle please?! Ok, BMC 1800 diesel, Bowman marinising gear, 35 yrs old, head last removed about 20 yrs ago. On turning over from cold, it makes a chuffing noise from the air intake. As soon as it starts the noise dissapears. Now, run for about an hour at half throttle under load and the noise starts again. No misfire or rough running, a steel ruler on the injectors didn't reveal anything. shut back to about quarter throttle for about ten minuites then shut back to tick over no load, remove aircleaner cover and the noise is very clear, then after a few minuites the noise slowly dies away! Open up again to half throttle under load all ok but after a while the noise is back. Beats the hell out of me! I've been told to try a product called 10K, a sort of aerosol decoke, but before that, or a complete strip down (the engine that is!) anyone got any ideas? Thanks.