exhaust port carbon removal: Best Way?

[timberwolf]

Maybe both ben and I are judging the difficulty of the job through tinted glasses. Only you will know if taking a saw apart and putting it back together is within your comfort zone.

At first I started by pulling just about any mechanical or electrical piece of equipment I could get my hands on apart, nothing ever got put back togeather. after that I progressed to trying to fix broken things, they got put back together but seldom worked quite right. Then more and more I made sucsessfull repairs. But only just recently can I say that I am becomming able too pull things apart and actually improve them with any degree of reliability.

I guess it is all to easy to assume that mechanical things such as a saw are simple, for the folks gifted with the visual memory to pull an engine appart, put in a box, leave it for a couple of years, mix it up with 2 or 3 other boxes of parts and then remember where all the pieces go.

However that being said I still feel that with a few precautions anyone who can turn a screwdriver should be able to work thier way through it by writing down the steps and keeping track of where each piece goes.

 

[Lobo]

Is that not what schematics and part manuals are for ?

 

[Rubber duck]

Had the muffler off my 026 and the port had a lot of carbon chunks sticking to the sides. I made sure the piston covered the hole to the interior before scraping the carbon off. I vacumed out the carbon but pieces remained. Washed out with fuel mix and using q-tips got it clean. Do I need to do something else? Dump gas in the port and try and wash out the crankcase? Can carbon pieces get between the piston and the cylinder wall? I also need to clean a 15 year old 034 super exhaust port as well. Thanks for your help guys and gals.

Man I tell you you these old saws were built to last yes carbon can get down between the cylinder and piston and score it it really is best to do a full tear down new bearings seals gaskets can check bearings to see if good and can do a pressure check and vacum test to see if seals are good to me it's worth doing a rebuild original stihl parts are hard to find takes me 1 to 2 months to do a rebuild because I use original parts built they are some real good after market parts also and are a lot cheaper but to get back to the subject if you have that much carbon probably could at least use some new piston rings if pistion and cylinder are still good that's a good time to clean carbon build up on top of piston and cylinder if you need any advice hit me up or these pros on here have taught me a lot and I rebuild vintage stihl saws.