Ms 180 rebuild with pictures.

[Vintage Engine Repairs]

Well, I saw an advert. Ms 180 and ms 025 68 USD few parts missing, one works (it runs and dies) other he didn’t know.

Told him i’d give him 46 USD for the pair and if he delivered.

Settled on 58 USD

Both will just be a bit of fun, strip down clean and rebuild! Here is the process thus far!

 

[JoshNY]

Good luck with your build.
I found a 018c at the dump one year. Ended up being a great find, cleaned the spark plug and put some fresh gas in and it fired right up! Was missing the air filter cover and the bar and chain were shot, but for about $70 in parts I have a good running saw.
Have used it for about 6 or 7 years now clearing limbs on hunting trails.

For what they are,the 018/180 are a pretty good little saw!

Sent from my SM-S727VL using Tapatalk

 

[Brent Nowell]

What a great little saw, I had two of them. One I beat to utter sh*t for ten years and it would still run and cut. The other I bought new and put an adjustable carb on it. Ran real nice and then sold it to a good friend who wanted a decent chainsaw.

Reading this thread makes me want another.

 

[Vintage Engine Repairs]

The 025 looks ok, little more battered, so far I know I need new air oil and fuel filters, couple nuts and bolts and a air filter
Cover and clutch cover, haven’t ripped into the piston or crank yet

 

[Nathan Graff]

Get yourself a handful of the Walbro WC215 carbs from amazon or ebay. Work on both the 180 and the 250. You'll have to drill holes in the case of the 180 though. Then you can muffler mod them, and get more power out of them.

 

[Vintage Engine Repairs]

I have spent more hours than I care to think about today stripping and cleaning - didn’t even eat dinner!

 

[atpchas]

I have spent more hours than I care to think about today stripping and cleaning - didn’t even eat dinner!

Great job! Dirty saws are a royal PITA to work on.
What did you use for a solvent?

 

[Vintage Engine Repairs]

Great job! Dirty saws are a royal PITA to work on.
What did you use for a solvent?

ahah washing up detergent and a drop of moto mix fuel for the stubborn parts!

 

[Vintage Engine Repairs]

Well the piston and cylinder are out, what are your thoughts? Worth a try to get it running like this? Remember this saw cost me 28 USD... It’s scored but I’m sure you’ve seen worse. Tempted to put it all together and see how it runs. If not great, i’ll replace the crank seals, top end and cylinder. I think bottom end is ok? How can I test the bottom end to see if it’s good? I can’t remember if a slight bit of side to side wiggle of the connector rod is ok or if it’s up and down!

 

[trains]

If you want to go cheap, remove the rings, use a flat file to gently and I mean gently, bring down the high spots on the piston, and finish with scotchbrite, reinstall rings, and clean any transfer off the cylinder.

or just get a meteor piston and clean the cylinder and replace crank seals and go from there.
pressure test after to make sure its all good.
Hey good to see you got a project, see they are out there.

 

[Vintage Engine Repairs]

If you want to go cheap, remove the rings, use a flat file to gently and I mean gently, bring down the high spots on the piston, and finish with scotchbrite, reinstall rings, and clean any transfer off the cylinder.

or just get a meteor piston and clean the cylinder and replace crank seals and go from there.
pressure test after to make sure its all good.
Hey good to see you got a project, see they are out there.

Hey mate! Yes very surprised! could I use a wet dry abrasive paper to smooth it? Does it make
A noticeable difference smothing it down?
I don’t have a pressure tester

 

[Vintage Engine Repairs]

Also, what’s this hole on the top of the piston? I will scrub the carbon off before putting it back

 

[trains]

Hey mate! Yes very surprised! could I use a wet dry abrasive paper to smooth it? Does it make
A noticeable difference smothing it down?
I don’t have a pressure tester

No dont use abrasive paper, it will embed in the soft piston, and ruin your cylinder.

re pressure tester, get a cheap mitivac chonga clone for 20bucks

Um piston is toast incorrectly placed piston stop ?
Is that a hole right thru the crown, as it looks like it from the picture.

 

[Bob Hedgecutter]

You might be tempted to see if it will run, but the hole in the piston will stop you succeeding is my guess.
If you want to go real cheap, for a bit of a wait on delivery and probably less than Aussie $20, you can get an entire ready made engine from Farmertec for the 180 and drop it straight in.

 

[Vintage Engine Repairs]

Hole doesn’t go al way through, think it’s meant to be there

 

[NCPT]

No way I would put it together without a new piston and rings....especially after you have cleaned everything up. That piston with a hole in the top is no good.

 

[Vintage Engine Repairs]

Kinda looks like this one

 

[Vintage Engine Repairs]

Here it is with carbon removed

 

[NCPT]

Kinda looks like this one

It might look like that one, but it is not the same lol.

 

[Vintage Engine Repairs]

It might look like that one, but it is not the same lol.

Haha I’m staying positive, so that hole can stop it from creating compression?