Hi All
This is my fist post on this forum and I hope someone can help me out
I have a 1999 a4b5 avant with the 110bhp afn engine, Its always been a great engine, starting first turn of the key and after changing the timing belt it was exactly the same, I had a small oil leak which I traced to the crank shaft oil seal flange on the front of the engine where a bolt had sheared off, after removing the timing belt etc and drilling out/tapping the bolt and fitting a new bolt, I put everything back together and everything was fine, It started first time and I let the engine run to make sure no oil was leaking and it was all good, later I even came back to the car and again it started first time, spurred on by this I thought hmm, I never actually clocked the injector pump for optimum injector timing, so I whipped out the lap top started up vagcom and with the engine up to temp I checked the injector timing which was in spec but slightly retarded so I slackened off the 3 nuts holding the injector pump and with the engine running clocked the pump towards the block whilst checking vagcom (the pump was very very stubborn to clock, ended up using a large pry bar to clock it) anyway I got the pump clocked to bring the timing slightly advanced (which I believe is optimal) and all was well, the engine would still start no problem, until the next day, the battery was flat and the car refused to start, even after charging the battery for a whole day the engine would crank but not fire, I have tested the glow plugs and there is voltage to them but when I cracked off the injectors there is no diesel coming out the lines, there is plenty diesel in the tank and although the filter is a little old, I can suck diesel from the tank to the injector pump with no difficulty, however it would seem that the injector pump is not sucking (put my thumb over the hole where the diesel enters the pump and I cant feel any suction, I really don't know enough about these pumps, do they have a lifter pump? from what I have read they do not and I believe it would be fuse 28 if it did and I don't have a fuse 28 any advice would be much appreciated
Regards,
Markl
This is my fist post on this forum and I hope someone can help me out
I have a 1999 a4b5 avant with the 110bhp afn engine, Its always been a great engine, starting first turn of the key and after changing the timing belt it was exactly the same, I had a small oil leak which I traced to the crank shaft oil seal flange on the front of the engine where a bolt had sheared off, after removing the timing belt etc and drilling out/tapping the bolt and fitting a new bolt, I put everything back together and everything was fine, It started first time and I let the engine run to make sure no oil was leaking and it was all good, later I even came back to the car and again it started first time, spurred on by this I thought hmm, I never actually clocked the injector pump for optimum injector timing, so I whipped out the lap top started up vagcom and with the engine up to temp I checked the injector timing which was in spec but slightly retarded so I slackened off the 3 nuts holding the injector pump and with the engine running clocked the pump towards the block whilst checking vagcom (the pump was very very stubborn to clock, ended up using a large pry bar to clock it) anyway I got the pump clocked to bring the timing slightly advanced (which I believe is optimal) and all was well, the engine would still start no problem, until the next day, the battery was flat and the car refused to start, even after charging the battery for a whole day the engine would crank but not fire, I have tested the glow plugs and there is voltage to them but when I cracked off the injectors there is no diesel coming out the lines, there is plenty diesel in the tank and although the filter is a little old, I can suck diesel from the tank to the injector pump with no difficulty, however it would seem that the injector pump is not sucking (put my thumb over the hole where the diesel enters the pump and I cant feel any suction, I really don't know enough about these pumps, do they have a lifter pump? from what I have read they do not and I believe it would be fuse 28 if it did and I don't have a fuse 28 any advice would be much appreciated
Regards,
Markl