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21 lpm loncin

chrissyman

Member
Messages
33
Location
Scotland
Wondering if anyone can help. Received new 21 lpm loncin pressure washer earlier today. Was going perfectly then suddenly stopped. Can get it started but after a short period seems to cut out again. Topped up the oil plus unleaded petrol.

Just wondering if i m doing anything wrong.

Putting the revs to about a third of the way from the slowest

Putting the fuel on. Choke closed then opening as engine starts up and machine switched on.

Wondering if i m missing something.

Two hose things the outer bypass plus the one that picks the water up in a wheelie bin full of water. Does the hose providing the water from the tap need to be on at all times

any help greatly appreciated.

 
Is this happening when engine is cold? And does it only cut out when your off the trigger?

If no to the above then try more revs, 80% revs, see how it is then,

Yeah leave tap on when using so it's always filling, you'll need to fit a ball **** to stop the water from overflowing - although that won't happen if your not taking breaks, but it's a standard thing to do anyway so that when you stop, the wheelie bin will keep filling and then stop when the ball **** kicks in

 
Is this happening when engine is cold? And does it only cut out when your off the trigger?
If no to the above then try more revs, 80% revs, see how it is then,

Yeah leave tap on when using so it's always filling, you'll need to fit a ball **** to stop the water from overflowing - although that won't happen if your not taking breaks, but it's a standard thing to do anyway so that when you stop, the wheelie bin will keep filling and then stop when the ball **** kicks in

cheers for the reply mate. I think it might be happening when the trigger stops. For some reason the engine stops as well. Any ideas?

Gonna get a ball **** fitted. Noticed a few of you on here have them set up that ll be the next job if i get this machine running eventually

Appreciated.

 
Ok try with 3/4 revs see if that helps, sometimes they do cut out when off the trigger, but usually only when cold...

I think the low revs might be a an issue, is it defo returning to tank when your off the trigger ?

 
Two things here.

Make sure you have the trigger pulled when you are pulling the cord to start it, this takes pressure off it, you can let go as soon as the engine starts, which takes us to point 2.....

My guess is you have the pressure turned as high as it can go? or nearly as high, this will cause the engine to stop unless the trigger is pulled, and also be unable to start, wind it out a load.

 
It's shouldn't stop with the pressure at full wack on the valve though @Diwrnach, it should just keep going as its sending the water back to the tank?

Mine doesn't cut out at full pressure and 3/4 revs...?

Seems a bit odd... Mine only cuts out if it's cold and I'm off the trigger, but after 5 mins running it never cuts out...

 
Cheers for the replys guys. Having a mechanic look at it tonite. Had another go today but seems to be harder to even start. Tried at high revs but no joy. Seemed to have a bit more luck with lower revs starting it but kept cutting out about 30 seconds later.

Regarding the pressure valve mine doesnt seem to have a nozzle on the top just two bolts with a thread through the middle does say which way to turn to increase or lesser the pressure but when i tried it yesterday the pressure didnt seem to go either up or down. Wasnt sure if both nuts were to turn or just the one at the top if that makes sense.

Put unleaded petrol in and a small amount of 15w40 oil in the pump. But both the engine and pump looked like their was enough oil in both.

 
Cheers for the replys guys. Having a mechanic look at it tonite. Had another go today but seems to be harder to even start. Tried at high revs but no joy. Seemed to have a bit more luck with lower revs starting it but kept cutting out about 30 seconds later.
Regarding the pressure valve mine doesnt seem to have a nozzle on the top just two bolts with a thread through the middle does say which way to turn to increase or lesser the pressure but when i tried it yesterday the pressure didnt seem to go either up or down. Wasnt sure if both nuts were to turn or just the one at the top if that makes sense.

Put unleaded petrol in and a small amount of 15w40 oil in the pump. But both the engine and pump looked like their was enough oil in both.
Also didnt matter if i started on low revs then tried to move it to high revs...would just cut out when i tried to move the revs higher. Same if i kept it at low

 
It's shouldn't stop with the pressure at full wack on the valve though @Diwrnach, it should just keep going as its sending the water back to the tank?
Mine doesn't cut out at full pressure and 3/4 revs...?

Seems a bit odd... Mine only cuts out if it's cold and I'm off the trigger, but after 5 mins running it never cuts out...
Wind the pressure *** all the way as far as it will go to the + and try it, there is even a video on it somewhere.

 
Also didnt matter if i started on low revs then tried to move it to high revs...would just cut out when i tried to move the revs higher. Same if i kept it at low
Sounds like fuel starvation.

 
i had problems with a faulty carb on a loncin , another possibility could be stale petrol , if the petrol you put in the washer was sitting in a container for a few months then this can cause problems

 
Any ideas how to fix the fuel starvation problem mate?

New petrol mrshine just got it yesterday. The only thing i m wondering when i was having problems i filled the tank up it now sits just above the filter could it maybe be too much fuel in the tank.

Any help appreciated.

 
Wind the pressure *** all the way as far as it will go to the + and try it, there is even a video on it somewhere.

Yeah theres no *** on my pressure washer. Seems like they ve forgot to add it. Just two bolts on a thread. Can use a ratchet to turn the bolts but if you pull it too far one way the bolts actually come off. Not sure if i m wanting both nuts turning or just the top one.

 
Any ideas how to fix the fuel starvation problem mate?
New petrol mrshine just got it yesterday. The only thing i m wondering when i was having problems i filled the tank up it now sits just above the filter could it maybe be too much fuel in the tank.

Any help appreciated.
This is really hard to diagnose over the internet lol.

If its starting, then running fine for a little while and THEN cutting out it would normally suggest running out of fuel, so either a jet is blocked or a fuel filter blocked or something like that, also potentially the air filter might be blocked?

As its brand new though I don't understand how any of these can be the issue, I know this might sound stupid and not wanting to offend, but you have turned the fuel on? and do you initially start it with choke?

I know Terry runs them all before sending them out so would be strange to have one dead on arrival.

 
I'll go through my starting routine just to see if it helps at all, from cold.....

Throttle about 3/4, fuel on, choke on, pipework in barrel, hold lance trigger and give the string a yank, ones its started turn the choke off straight away and let her run until water is primed through the pump.

Job done.

 
Maybe you could try siphoning out the petrol, then just putting a very small amount in and pressurising the tank by blowing into it, (like blowing up a balloon)

If no luck then ring Terry, but your mechanic friend will probably find the issue very easily...

 
Gravity fed so shouldn't matter the volume of fuel, but always worth a go to eliminate it as an issue.

 
Cheers for all the advice everyone. Think it ended up being the petrol must have had particles in it probably cause the can i used was an old one. My bad. Cleaned the carburator out etc and its working fine now. Just needing to get some leaflets etc printed off and on i go. Cheers for taking the time guys.

 
Cheers for all the advice everyone. Think it ended up being the petrol must have had particles in it probably cause the can i used was an old one. My bad. Cleaned the carburator out etc and its working fine now. Just needing to get some leaflets etc printed off and on i go. Cheers for taking the time guys.
The mechanic was saying to turn the petrol on for a bit before starting to give it time to filter through plus if the pressure washers needing stored to put the petrol off and let the engine tick over for a bit till you hear it just starting to struggle before stopping the engine. To try and drain the petrol from the carburator cause the fuel sometimes turns waxy and blocks the carburator if its left in storage for too long. If that helps anyone.

 

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