What's on your bench?

[mrxlh]

Stihl 192tc, thought it had a burned piston, ended up being the carb screen plugged. 120psi compression seemed awfully low so I got to tear down my first clamshell. Anyone ever seen a gray paste on the carb screen? It turned white after it dried.

 

[Maintenance Chief]

Stihl 192tc, thought it had a burned piston, ended up being the carb screen plugged. 120psi compression seemed awfully low so I got to tear down my first clamshell. Anyone ever seen a gray paste on the carb screen? It turned white after it dried. View attachment 315843

I've seen a fuel filter deteriorate and the metal oxidizes and gets sucked into the carburetor.

 

[heimannm]

This week -

880 needed carburetor work and fuel filter
075 needed Heli-Coils and screws replaced
311 needed a good cleaning, the clutch was so jammed with oily sawdust it nearly locked up the saw
The JD/Echo needed a carburetor rebuild and the condenser replaced - no small task
The Mc PM605 needed the throttle release replaced (broken), new clutch drum, and the chain sharpened
The Electra Mac in the background needed the bar adjust nut and a new bar, and the chain sharpened
The 391 in the case on the floor needed the bar dressed and a new used chain

Mark

 

[Maintenance Chief]

View attachment 315850

This week -

880 needed carburetor work and fuel filter
075 needed Heli-Coils and screws replaced
311 needed a good cleaning, the clutch was so jammed with oily sawdust it nearly locked up the saw
The JD/Echo needed a carburetor rebuild and the condenser replaced - no small task
The Mc PM605 needed the throttle release replaced (broken), new clutch drum, and the chain sharpened
The Electra Mac in the background needed the bar adjust nut and a new bar, and the chain sharpened
The 391 in the case on the floor needed the bar dressed and a new used chain

Mark

Thats a nice 088, is that the one they use at the paper mill?

 

[heimannm]

Lumberyard - It once was, but the clutch failed and tore it up and they were informed the repairs would exceed the value of the saw so they gave it to me in pieces. I donated the pieces to my tree service friend who located the necessary bits to make it run again. That's a 42" bar, the one at the lumberyard has a 60", 173 DL if I recall.

Mark

 

[Benwa]

Stihl 192tc, thought it had a burned piston, ended up being the carb screen plugged. 120psi compression seemed awfully low so I got to tear down my first clamshell. Anyone ever seen a gray paste on the carb screen? It turned white after it dried. View attachment 315843

How did the rest of the carb look inside? Ethanol fuel, if left sitting, can actually become corrosive to aluminum and brass parts. I've seen the gray "gunk" before. I've always attributed it to ethanol fuel eating away "some amount" of the metal. Also as @Maintenance Chief mentioned, I've seen the fuel filters with "plated" metal get all oxidized. I'm not educated enough to know exactly what is going on in terms of science, but I never seem to see it in non ethanol scenarios. May not be what you're encountering, but that's my guess anyway.

 

[Maintenance Chief]

Lumberyard - It once was, but the clutch failed and tore it up and they were informed the repairs would exceed the value of the saw so they gave it to me in pieces. I donated the pieces to my tree service friend who located the necessary bits to make it run again. That's a 42" bar, the one at the lumberyard has a 60", 173 DL if I recall.

Mark

If you need I've got carburetor options for you, if it gives you trouble Mark.

 

[mrxlh]

How did the rest of the carb look inside? Ethanol fuel, if left sitting, can actually become corrosive to aluminum and brass parts. I've seen the gray "gunk" before. I've always attributed it to ethanol fuel eating away "some amount" of the metal. Also as @Maintenance Chief mentioned, I've seen the fuel filters with "plated" metal get all oxidized. I'm not educated enough to know exactly what is going on in terms of science, but I never seem to see it in non ethanol scenarios. May not be what you're encountering, but that's my guess anyway.

Rest of carb was spotless, and fuel filter was fine as well. Really thought I burned a piston in it as the last time I used it before it started running bad I was in way too big of wood and pushing it though the cut.

 

[RI Chevy]

Were you using Stihl ultra oil?

 

[mrxlh]

Were you using Stihl ultra oil?

Yes and e-10 87 octane.

 

[mrxlh]

Should have been running RA. Its the miracle cleaner.

The rest of everything else was spotless, and being a 30cc saw and the Stihl Ultra, I expected to see it somewhat dirty inside, of course I really though it was a roasted top end too. It was spotless and plenty of oil film on everything, heck the piston even had good wash patterns on it.

 

[Czed]

04 polaris
The suspension rebuild done about a year ago with am rubber bushings
Had already rotted away.
These pvc bushings slathered in never seize
will cure that
We did this to Suzuki quadracers in the 80s and 90s

 

[mrxlh]

04 polarisView attachment 315909
The suspension rebuild done about a year ago with am rubber bushings
Had already rotted away.View attachment 315911
These pvc bushings slathered in never seize
will cure thatView attachment 315912
We did this to Suzuki quadracers in the 80s and 90s

OEM lasts the longest, it’s definitely a job you don’t want to do often….

 

[RI Chevy]

Yes and e-10 87 octane.

BINGO!!!

 

[mrxlh]

BINGO!!!

Except the 55 and 372xpxt all ran the same fuel (ms250 as well that has been sold to a friend) with zero issues, so not sure it was the gas.

 

[Flying_Dutchman]

Except the 55 and 372xpxt all ran the same fuel (ms250 as well that has been sold to a friend) with zero issues, so not sure it was the gas.

I burn right around 150 gallons of 87 E10 per year. Never had this problem.

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[RI Chevy]

Except the 55 and 372xpxt all ran the same fuel (ms250 as well that has been sold to a friend) with zero issues, so not sure it was the gas.

The OIL...
That's why I asked if Stihl ultra oil was used...

 

[WillG]

Yesterday afternoon I mostly finished up my pressure washer project. Changed the pump oil, changed the engine oil and filter, replaced the air filter and plug. Setup the new hose and gun, mounted the nozzle holder, fabricobbled a holder for the gun and hose. Added an inlet filter too. All I have left to do is replace the oil sight glass on the pump. Ran some pump saver through the pump too. Was having some stalling issues with the engine but a quick carb clean solved it.

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[Stevetheboatguy]

Yesterday afternoon I mostly finished up my pressure washer project. Changed the pump oil, changed the engine oil and filter, replaced the air filter and plug. Setup the new hose and gun, mounted the nozzle holder, fabricobbled a holder for the gun and hose. Added an inlet filter too. All I have left to do is replace the oil sight glass on the pump. Ran some pump saver through the pump too. Was having some stalling issues with the engine but a quick carb clean solved it.

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fabricobbled.......... I like that word




Steven

 

[WillG]

@Stevetheboatguy here's the definition...

To build or construct a component, device or structure in an amateurish, non-professional way, often quickly and using materials on hand. Portmanteau of “Fabricate and “Cobble.

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