Fuel, fuel and more fuel

[Mark_Skyland]

1 hour ago, Con said:

Good advice Thanks. I've always used super unleaded since they increased the ethanol. 

Bit of a tangent. Fueled up the transit the other day (diesel). Not at my usual petrol station.  It was low on fuel. Immediately after we left the petrol station engine started pinking/knocking. Maybe coincidence.  It idles, runs, a bit of loss of power. Googled it. Plenty of suggestions that it could be fuel pump solenoid. I'm not convinced.  Changed fuel filter, didn't do anything. Before I go for solenoid, any other suggestions?  Thanks

Sorry, no idea on what the problem could be. I would go down the usual service route first, change the oil and filter, fuel filter etc although you've already done that one. It could be a coincidence as I wouldn't have thought the fuel would cause it but there has been a few situations in the past when a garage has had a dodgy batch of fuel and messed up a lot of vehicles. Lots of diesels have a recirculating exhaust emission valve that can stick, I cant remember the exact name of it but its something that does cause issues.

 

 

[openspaceman]

12 minutes ago, Mark_Skyland said:

Lots of diesels have a recirculating exhaust emission valve that can stick, I cant remember the exact name of it but its something that does cause issues.

Exhaust Gas Recirculation valve.

 

I still cannot understand why an engine with adblue would have one??

[GarethM]

It's used to get the engine warmer quicker as a diesel lump takes a lot to get upto operating temperature.

[Mark_Skyland]

10 minutes ago, openspaceman said:

Exhaust Gas Recirculation valve.

 

I still cannot understand why an engine with adblue would have one??

Thanks .:)

EGR valve, that's the one. Block up and cause loads of issues, I had that problem on an old Peugeot of mine, took a lot of scrapping to sort it out.

It also had a dodgy injector that refused to come out, I ran it for awhile with the bolts loose which sorted it out. Theres plenty of you tube videos of people trying to remove stuck injectors!

 

 

[Stubby]

8 hours ago, Mark_Skyland said:

Your right, it is another option but most pro users wont go for alkylate fuel. 

I think that is slowly changing though .

[Mark_Skyland]

15 hours ago, Stubby said:

I think that is slowly changing though .

Not in my shop it isnt. Some pros use it for certain machines, hedge trimmers etc but most cant justify the price when it comes to big saws.

[spudulike]

This is good advice on the OPs first post. I drained a lot of tanks when running much of my business via courier and used to put the fuel through a funnel with a home made fine gauze strainer and used to get loads of sawdust and shyte/old fuel filters out of the tank including water. 

How many find the carb gauze strainer is full of crap and don't go back to draining and straining the fuel tank? You should....a decent post.

[Mark_Skyland]

This is a good one. Customer brought a 261 in a couple of weeks ago as it was running rough, it sounded and ran like an old ford orion diesel. I got around to looking at it yesterday, I couldn't get it to fire so i checked the fuel tank.

 

This was what came out of it

 

 

And this was what it looked like after an hour or so

 

I was impressed that the saw did manage to fire and run on that mix. It didn't fire when I tried it a couple of weeks later as the water and fuel would have separated so I would have been trying to run it on water only.

 

Tank clean, new fuel filter and its running fine.

 

[Mark_Skyland]

It seems that one of the lads my have allegedly dropped the saw in a canal and didnt tell anyone about it!

 

Just for reference if you ever do the same as above, you may not have to drain the fuel depending on how long its been underwater but my advise is to drain the tank, put fresh fuel in and get it up and running ASAP. Pull the spark plug and pull the starter while the saw is upside down to expel any water, dry the plug and get the saw running. If you leave it for more than even a day you will probably get bearings and piston rings rusting up.

 

 

[Muddy42]

It also helps if the saw wasn't running when it gets dunked.