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Dieseling or running-on is a fairly natural consequence of an engine that is idling too fast or being switched off before the idle has been restored after being revved.
Changes to engine design to improve acceleration and economy and meet new emission regulations required higher idle speeds and dieseling became a common problem which required the introduction of a fuel cut-off solenoid on many carburettors.
Dieseling is sometimes the result of overheating or too much carbon in the combustion chamber.
The design changes mentioned above required changes to carburation, including the choke design and operation. Complying with new emission regs required a quick engine warm-up and for the automatic choke to disengage in about two minutes. A higher fast idle was also required and mostly at least one vacuum servo was used to ensure smooth running during the warm-up period.
In order to disengage the choke quickly, it was often arranged to be heated, either by electricity alone or by electricity and hot water.
If the fuse has been removed the choke will not work correctly. Why the previous owner removed the fuse is a mystery, perhaps there is a fault.
The choke must be put back into good operation in order to achieve proper fuel economy and smooth running, or alternatively the carburettor could be converted to manual choke.
Hi, fuel pressure is usually found greater on diesel engines and is produced from the diesel pump and is pressurised into the injectors and when released puts a vapour mist in the piston compartment. On a petrol engine it is usually produced by an electric pump so that the fuel system is under some pressure going from the tank to the pump to the carburettor to the inlet valve to the piston chamber as a vapour and ignited by the spark from the spark plug.
I hope you've flushed the fuel tank after the mistake. There could still be diesel in the system, and diesel does not evaporate like gasoline. Diesel will, however, burn off if the engine is hot enough, so you need to get your engine started.
1 Fill your tank with the proper grade gasoline.
2 Try to get the gasoline through the system as far as possible - loosen the feed pipe as close to the carburettor or injector system as possible, switch on the ignition to get the fuel pump to displace any diesel in the pipe (remember to place the end of the pipe into a container so you don't spill the stuff on the floor). Otherwise just suck at the end of the pipe (not recommended) until the gas comes through.
3 Reattach the fuel pipe, then prime the engine with ethanol - also called Quick Start or similar.
Spray the Quick Start into the air intake while cranking the engine. It should start, even for just a few seconds. Repeat this a few times until the engine starts then let it run until the smoke from the exhaust stops. It is not the end of the world to have diesel in a gas tank, much, much worse is getting gasoline in a diesel tank!
This is a first aid remedy, hope it helps.
If you have serviced the engine, changed oil and oil filter and air filter and spark plugs and cleaned the carburettor or cleaned your throttle body and injectors, and its still heavy on fuel then try the following. Adjust the carburettor air and fuel. Take off the distributor cap and clean the rotor and spark pionts in the cap of carbon build up by means of light sand paper. Same applies to the spark/ high tension leads and coil lead metal connection points. Check distributor timing as well. If the engine smokes, do a compression test. If results are beneath factory specifications, remove cylinder head, replace the valve stem seals and re-seat the valves and or replace the pistons and piston rings. Basically engine overhall
well it runs,,,,,
low power on a diesel is
1: low compression
2: bad fueling
#2 can take forever to find, if you dont know what engine it is or what fuel system was used.. no country stated, so cant guess
read the wiki on land cruiser and see what you have.
we dont know.
1.You have to remove the air filter *** cover.
2.Remove air filter.
3.Remove 2 screws, to remove the rest of air filter ***.
4.Remove the 2 fuel lines with a long nose plier.(Take a photo of
the position of fuel lines or mark fuel lines for reassembly)
5.Unhook the throttle cable. Now to fix the Carburettor
1.Remove the 4 screws on primer bulp side of the carburettor.
2.Open the carburettor and clean with paint brush and clean fuel.
3.Replace diaframe kit(available from your nearest dealer) and reassemble the trimmer.
First make sure the fuel filter is clean. Check the carburettor is attached tightly to the engine. The passage ways and jets in the carburettor may be gummed up. Dismantle the carburettor while ensuring that you don't damage any gaskets. Spray carburettor cleaner into the orifices and then if you have a compressed air gun, use it to blow out the carburettor.
This can happen if there was fuel left in the carburettor for a few months. The fuel forms a gel in the jets which can block the fuel getting through. You could try the following procedure which might help get it going.
Remove the sparkplug.
Pour about 5ml (or 1 teaspoonful) of fuel into the opening, where the sparkplug came out of.
Dip the end of the spark plug in fuel so the spark gap gets wet and replace the plug and HT lead.
Try to start the generator. The fuel that you poured in should ignite. This might be enough to get the engine running. You may have to repeat the procedure 2 to 3 times. Don't be tempted to pour too much fuel in as it will cause the engine to flood.
If the jets are blocked in the carburettor this might be enough to **** the fuel through but if not you'll need to get a mechanic to strip down the carburettor and clean the jets.
Thes engines have fuel jumpers that carry fuel from the #1 head to the #2 head and from #2 to #3. these are steel lines and use o rings to seal on the head. these orings will leak sometimes, but usually something has gotten between the rocker box and the line and rubbed a hole into the line.
Its recommended you use a fuel cleaner and run it through the fuel pipes and clean out the carburettor otherwise it will still be sucking through some un-emptied diesel, Also take spark plug out and kick bike a few times or electric start for a bit so it spews out the diesel left on top of piston.