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Have been using the 7MC-2A quite a bit.
About 6+ hours since last post.
This thing is a lot more useful than I thought it would be.
Discovered that I have a crankcase breather problem.
It’s pressurizing the crankcase and forcing oil past the oring.
Had the oil fill cap off to check the amount of blow by and noticed that the leak stopped.
Put the cap back on and the leak started right up.
It does of course have some blow by, but doesn’t seem excessive and always has great oil pressure and starts almost immediately, regardless of engine or outside temp.
Exhaust has some smoke at startup, but is clear after that.
I had already taken off the crankcase breather and cleaned it. All looked fine and all parts accounted for.
What I didn’t do was look down inside the long breather tube so see if there’s an obstruction.
Will do that next time I have the cover off.
This machine doesn’t look abused at all so I doubt there’s anything stuck in there. Only one way to find out.
A plastic Lipton tea bottle (with bottom cut out) screws into the oil fill tube perfectly. Nice and tight.
It also makes a great funnel.
While it’s running, I have that screwed in to keep the oil splatter down and the crankcase can breath.
I have a piece of scotch-brite tucked inside to keep anything from falling inside.
Works perfect and it doesn’t get saturated and clog up like a paper towel would.
As soon as I’m done and shut the engine off, oil fill cap goes back on.
Short term solution obviously, but it’s working great.
Ran it almost 3 hours nonstop and No leaks.
Very fuel efficient machine, the 7 gallon tank will last a really long time.
Have two-stroke oil and seafoam mixed in as usual.
Still waiting on parts for both machines.
About 6+ hours since last post.
This thing is a lot more useful than I thought it would be.
Discovered that I have a crankcase breather problem.
It’s pressurizing the crankcase and forcing oil past the oring.
Had the oil fill cap off to check the amount of blow by and noticed that the leak stopped.
Put the cap back on and the leak started right up.
It does of course have some blow by, but doesn’t seem excessive and always has great oil pressure and starts almost immediately, regardless of engine or outside temp.
Exhaust has some smoke at startup, but is clear after that.
I had already taken off the crankcase breather and cleaned it. All looked fine and all parts accounted for.
What I didn’t do was look down inside the long breather tube so see if there’s an obstruction.
Will do that next time I have the cover off.
This machine doesn’t look abused at all so I doubt there’s anything stuck in there. Only one way to find out.
A plastic Lipton tea bottle (with bottom cut out) screws into the oil fill tube perfectly. Nice and tight.
It also makes a great funnel.
While it’s running, I have that screwed in to keep the oil splatter down and the crankcase can breath.
I have a piece of scotch-brite tucked inside to keep anything from falling inside.
Works perfect and it doesn’t get saturated and clog up like a paper towel would.
As soon as I’m done and shut the engine off, oil fill cap goes back on.
Short term solution obviously, but it’s working great.
Ran it almost 3 hours nonstop and No leaks.
Very fuel efficient machine, the 7 gallon tank will last a really long time.
Have two-stroke oil and seafoam mixed in as usual.
Still waiting on parts for both machines.