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I just got some 58x1.5mm piston rings for my pioneer 620! Does anybody know how much I should grind them down? Thanks here’s a pic of it with the new bar.
 

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Having no luck finding an OEM tank vent solution for the P62, I went with Cory's approach and am happy with the results..., at least as far as air goes. LOL Applied the final application of sealant this morning and want to wait 24hrs. before exposure to fuel and oil.

I used a couple applications of Seal-All over the course of a few days with a final application of Motoseal this morning. I used an 1/8" mini hose barb coupler cut in half and trimmed to fit each cap for the stems. Worked great and are a perfect diameter for the pink duckbills though I did still use a dab of Motoseal on each stem to help keep them in place. Had to drill a center hole in the fuel cap which was tedious in the bakelite but worked without any pieces breaking away. Nice, solid fit in both caps.

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Having no luck finding an OEM tank vent solution for the P62, I went with Cory's approach and am happy with the results..., at least as far as air goes. LOL Applied the final application of sealant this morning and want to wait 24hrs. before exposure to fuel and oil.

I used a couple applications of Seal-All over the course of a few days with a final application of Motoseal this morning. I used an 1/8" mini hose barb coupler cut in half and trimmed to fit each cap for the stems. Worked great and are a perfect diameter for the pink duckbills though I did still use a dab of Motoseal on each stem to help keep them in place. Had to drill a center hole in the fuel cap which was tedious in the bakelite but worked without any pieces breaking away. Nice, solid fit in both caps.

I'm sorry I never got to digging out the other saws. If you still need me to I might make it to the shop on Sunday. It looks like you have a good solution though.
 
No worries. I appreciate the thought. Time will tell if the solution holds up. Not as worried about the oil cap as the fuel cap for obvious reasons. Was a little concerned about the age of the Seal-All but it seemed to set up ok. The Motoseal coating should provide an additional seal and hopefully some additional longevity.

Credit to @Hoggwood for the idea. (Thanks, Cory.)
 
Having no luck finding an OEM tank vent solution for the P62, I went with Cory's approach and am happy with the results..., at least as far as air goes. LOL Applied the final application of sealant this morning and want to wait 24hrs. before exposure to fuel and oil.

I used a couple applications of Seal-All over the course of a few days with a final application of Motoseal this morning. I used an 1/8" mini hose barb coupler cut in half and trimmed to fit each cap for the stems. Worked great and are a perfect diameter for the pink duckbills though I did still use a dab of Motoseal on each stem to help keep them in place. Had to drill a center hole in the fuel cap which was tedious in the bakelite but worked without any pieces breaking away. Nice, solid fit in both caps.


Good job Poge.

I did find I had to do a generous application of Seal-All over about 3 applications or so. Originally, it shrunk back a bit on the the circumference of both the tube and cap. It has been holding up for a couple years now since the extra application. I like the barbed fitting idea. Hardware store for those?
 
Yep. Hardware store hose coupler. Was relying on the Seal-All more for its adhesive properties than as a sealant since it was a tube I've had around for awhile. Had lost any flow viscosity and needed to be smeared into place with a toothpick. Super Glue may have been easier. Pretty much counting on the Motoseal for the sealant in this case anyway. I know it works for 10-10 fuel tank seams so I'm hoping it can handle a couple duckbills.
 
I just got some 58x1.5mm piston rings for my pioneer 620! Does anybody know how much I should grind them down? Thanks here’s a pic of it with the new bar.

need to put em in bore, check end gap.
without a real spec, .004" per 1" of bore gets ya close.
 
Hello everyone. While primarily a collector/repairer of Partner saws, I picked up a few Pioneers on the weekend for next to nothing at an antique store my wife wanted to visit.

First is a P12 and second is a P28. I was hoping to get lucky and have a few runners, but luck decided to take a day off.

P28 has no compression and a badly scored piston. Air filter housing is jacked up, problems with the recoil system.

The P12 has good spark, but it is almost completely seized up. Is damn near impossible to turn over, and the recoil system works great. Surprising the piston doesn't look bad through the exhaust port. The manual oilier works well, has an almost new air filter and the rest of the saw is in really great shape.

I know very little about these saws. The Little P12 seems like it would be a neat little rig to get running if possible.

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Pull the starter off and see if its easy to pull while off. Nice score.

I had it off, I "broke it free" by hand. Either bearings are gone or piston is toast. How are parts to come by for these Pioneers? If it's anything like the Partners it'll be a nightmare at best lol
 
Dropped a fat douglas fir today. I actually fell and bucked the top of it up with an 031 sporting a 16". Over 30" across on the stump. That was interesting. Eventually, I needed something with a bit more jam. P50 ran like a champ. I had a 24" UXL mount with 8 pin rim. The saw is lower hours, as it had one of the earlier failed 3-piece ignition. Likely what ultimately preserved it. I am running a particular coil off of a 3.7 Roper. It had a nice wide core that made mounting easier. I had to pull the key and re-time it though. About 28 BTDC. I ran it on the rich side as it was about 35 Celsius and I haven't had it out in a while.

It was pulling really well. Good times.

Some talking and then some action...

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