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Will the tiniest amount of diesel in the fuel damage the saw?


Ryan625
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The fuel issue is on hold, my saw won't start now! It'll fire then nothing, probably something clogging the carb or an issue with the needle maybe? It'll start and run at full throttle but the second I let go.. dead. Was running fine earlier in the day. Also seems to be a lot of unburnt fuel coming out the exhaust too 

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9 hours ago, Ryan625 said:

The fuel issue is on hold, my saw won't start now! It'll fire then nothing, probably something clogging the carb or an issue with the needle maybe? It'll start and run at full throttle but the second I let go.. dead. Was running fine earlier in the day. Also seems to be a lot of unburnt fuel coming out the exhaust too 

Metering arm set too high ?

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12 minutes ago, Canal Navvy said:

I remember the much missed @TimberCutterDartmoor saying that the two stroke oil that we mix into the petrol is actually diluted to a usable viscosity with diesel/kerosene by the makers 🤔

And he had a degree in petrochemical shit . He did/does know his stuff when it comes to oil .

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Makes an amount of sense, thin and thick oil is the same stuff with difference length chains.

 

My 2p as I worked for Lucas CAV for a few years is that diesel pumps and injectors are lubricated inside by the diesel itself. Petrol doesn't do the same lubricating job, which is one reason putting petrol in your diesel car can be so bad for it.

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The petrol will burn leaving fluid in the exhaust that will smell of paraffin which is pretty much what it is.

I trust the petrol has 2T oil in it as well.

I serviced an 066 years ago for a local fella, it came back a day later not starting and a bit of a blame game.

I swapped his diesel impregnated fuel out and proceeded to fill the drive and Close I lived in with clouds of smoke until my mix came through and it ran just fine. 

It will do no harm to the engine....as others have already said.

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15 hours ago, Stubby said:

Metering arm set too high ?

It's set too high, I'll correct it when the rebuild kit arrives. It must be dumping fuel in since it's getting through the muffler gasket and pressure relief valve

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I'm struggling to find any info on where the metering lever should be set on this carb, for now I've set it level with body, any help will be appreciated. It has AT on the body and that doesn't match up with any markings on the tool 

20240810_125316.jpg

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