Bleeding The Fuel System

[petectid-HT]

I won't go into the issues I'm having with this person, but they decided that they would put water into my fuel tank. I've emptied this and bleed the lines through to the bleed screw on the fuel pump, realising that I had started the tractor and that it suddenly cut out on me after a short time I now have the contaminated fuel in the fuel pump and the three feeds to the injectors. I disconected the injecter feeds and cranked the engine over with the starter and I am getting the contaminated fuel at the injectors. The flow here seems very small it just spits a small amount of fuel out at each timing does that sound correct or should it be a large flow of fuel. Is there a way of clearing the contamination from the fuel pump and lines to the injectors other than running the battery flat in short bursts? My tractor is a Yanmar 3110D I may need to tow the tractor, do the breaks work when the engine is not running? Would need to tow down a hill, would that be okay?

 

[winston-HT]

While purging make sure you have the throttle wide open. This will make for maximum flow of fuel. You will not get a large flow of fuel. If you decide to pull it be sure and pull the compression release. This will make it easy to turn over. Still would need the throttle in the wide open position. Probably have already pulled the filter and changed it, if not, might be a good idea. Might consider loosening the discharge lines on the injector pump on both ends allowing the contaminated fuel to drain out of them. Then tighten at the pump until good fuel gets to the injectors. Yes, the brakes will work when not running.

Just read on another thread you are not suppose to tow a power shift tractor. I had forgotton that. Sorry.

 

[petectid-HT]

Managed to successfully bleed the contaminated fuel out of the fuel pump and fuel pipes to injectors and changed fuel filter, and start the tractor, so was able to drive it of there. Thanks for your help and advice made the job a lot easier than I had anticipated.

 

[norfolktoad-HT]

I put this comment in the wrong thread.

I have a 1610 with powershift and I asked the same question " can you tow a powershift tractor"

I received the comment " The manual for another powershift states "do not tow a tractor with powersift as serious damage may occur to the transmission". I have towed mine a short distance (50yds) with my lawn tractor. I made sure the gear leaver and the range selector were in neutral. I had no problems but I would be concerned if I had to tow it some distance.

Mike