My 290-390 conversion thread

[Junk Meister]

No, I looked it up. It’s a black Stihl branded one specifically for these clamshells

Part #? Picture maybe. You guys got my curiosity going.

 

[STOVE]

Part #? Picture maybe. You guys got my curiosity going.

1127-893-2602


Mine is still in the mail somewhere

 

[jacob j.]

Still waiting on my 1127 ring compressor to arrive and I had a thought.

I’m constantly running my fingers over the inside of the ports to convince myself they are beveled enough. Would putting a ring in the jug and pushing it up be a solid test?

Did you previously slide the piston without rings into the cylinder? You might want to do that to ensure there's nothing hanging up.

 

[STOVE]

Stihl waiting on my 1127 ring compressor tool, however a coworker gave welding on the deflector a go. Looks like it will let some air out

 

[EFSM]

Stihl waiting on my 1127 ring compressor tool, however a coworker gave welding on the deflector a go. Looks like it will let some air out

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Make sure you open up behind the deflector well, but it will get extremely loud if you drill directly behind where the pipe now is. That will be a straight shot out the exhaust port. I’d rather enlarge the two existing holes as much as possible, and that will really cut down on noise.

 

[STOVE]

Make sure you open up behind the deflector well, but it will get extremely loud if you drill directly behind where the pipe now is. That will be a straight shot out the exhaust port. I’d rather enlarge the two existing holes as much as possible, and that will really cut down on noise.

I used the Herman layout for the holes in the face. I also have the stock deflector with th port opened slightly. Can try both. I’m sure I will get tired of the pipe one.

I may end up with a a second muffler as well to try different configurations

 

[sixonetonoffun]

Redneck in me has to ask...
Can't just use a zip tie on the ring?

 

[Shane¹]

Redneck in me has to ask...
Can't just use a zip tie on the ring?

I just used 2 popsicle sticks one on each side and pushed the rings in and slid the piston down in then put dirko on the 2 halfs after the piston was started

 

[singinwoodwackr]

Stihl waiting on my 1127 ring compressor tool, however a coworker gave welding on the deflector a go. Looks like it will let some air out

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Dat gonna LOUD, lol