Waynet
New Member
I baught a dv20 I have desel to the pump but it’s not getting to the injectors the stop selonoid spears to be working can someone please help
Bukh won’t start
- Thread starter Waynet
- Start date
gordmac
Well-Known Member
Are you saying if you slacken the pipes on the injectors and spin the engine no fuel comes out?
Waynet
New Member
This is correct could you please shed some light thank you
gordmac
Well-Known Member
When you say pump is that the injection pump or lift pump? Is it in a boat?
chewi
Well-Known Member
The diesel is presumably clean.
give it some throttle as you don't know the engine yet.
bleed the fuel filter.
slacken the banjo at the entry to the HP pump.
turn the engine over or pump the lift pump.
There should be diesel leaking from the banjo. If so the lift pump is working.
If not the engine has no hope of starting yet
tighten that banjo.
slacken the banjo to one of the injectors
turn the engine over
There should be diesel leaking from the injector banjo. If so the HPpump is bled, but not necessarily working to spec..
If not the engine has no hope of starting yet.
repeat for the other injector.
If it doesnt start after that...
, do you get smoke whiule trying to start.
? suggests fuel gets tothrough the injectors. If not get the injectors checked serviced.
(Poole Diesel have done this twice for me for nothing)
give it some throttle as you don't know the engine yet.
bleed the fuel filter.
slacken the banjo at the entry to the HP pump.
turn the engine over or pump the lift pump.
There should be diesel leaking from the banjo. If so the lift pump is working.
If not the engine has no hope of starting yet
tighten that banjo.
slacken the banjo to one of the injectors
turn the engine over
There should be diesel leaking from the injector banjo. If so the HPpump is bled, but not necessarily working to spec..
If not the engine has no hope of starting yet.
repeat for the other injector.
If it doesnt start after that...
, do you get smoke whiule trying to start.
? suggests fuel gets tothrough the injectors. If not get the injectors checked serviced.
(Poole Diesel have done this twice for me for nothing)
Waynet
New Member
Got deader to injector pump it’s just not getting pumped though injector pump to injectors
Waynet
New Member
James_Calvert
Well-Known Member
I had a problem on our Bukh 20 similar to that described: no fuel at the injectors. The fuel rack jammed.
The injector pump needed a strip down and new service parts. A job for a diesel specialist, there will be one in your area dealing mainly with commercial vehicles.
Taking the pump off for the work is quite straightforward if you have good access. It is seated on some shims which provide adjustment for the timing. The timing won't be affected if you use the same shims on reassembly.
The injector pump needed a strip down and new service parts. A job for a diesel specialist, there will be one in your area dealing mainly with commercial vehicles.
Taking the pump off for the work is quite straightforward if you have good access. It is seated on some shims which provide adjustment for the timing. The timing won't be affected if you use the same shims on reassembly.
Assassin
Well-Known Member
Has it got a fuel shut off solonoid and if so has it got power and is it opening.
gordmac
Well-Known Member
Present engines with inline pumps bleed easily, I previously had a BMC based one with a rotary pump, that was a nightmare to bleed. Anyone familiar with how hard that particular one is to bleed? Does sound like something in the pump is faulty though. Is the fuel cutoff before the pump?
Waynet
New Member
It’s electric but it’s working
gordmac
Well-Known Member
Fuel gets to the pump but doesn't come out. Any bleed points on the pump itself? Does it feel like the accelerator is moving anything in the pump? Glow plugs or cold start overfuelling for cold start?
rotrax
Well-Known Member
Take the fuel solenoid off - completely.
When there is no current to it it closes the fuel inlet to the injector pump. By spring pressure.
Turn on the ignition and crank the starter it retracts and opens the fuel feed. Two windings IIRC, one heavy one to open it while cranking and a lighter one to hold it open when running. Turn it off, no current, spring shuts the fuel off.
When it is removed, fuel feed permanantly open. If you get the engine running, to stop it you put your finger in and push what the solenoid pushes.
A new solenoid in NZ for my DV20 was over $350 NZ - 175 Quid!
I used the solenoid body, deep sixed the burned out winding and converted mine to manual operation by cable. An hour or so fiddling about and a tidy up on my lathe plus an old motorbike clutch cable and a curtain ring to pull - works great!
When there is no current to it it closes the fuel inlet to the injector pump. By spring pressure.
Turn on the ignition and crank the starter it retracts and opens the fuel feed. Two windings IIRC, one heavy one to open it while cranking and a lighter one to hold it open when running. Turn it off, no current, spring shuts the fuel off.
When it is removed, fuel feed permanantly open. If you get the engine running, to stop it you put your finger in and push what the solenoid pushes.
A new solenoid in NZ for my DV20 was over $350 NZ - 175 Quid!
I used the solenoid body, deep sixed the burned out winding and converted mine to manual operation by cable. An hour or so fiddling about and a tidy up on my lathe plus an old motorbike clutch cable and a curtain ring to pull - works great!
