tmessenger
ArboristSite Guru
Here's a couple of 020's I've just got together:
The AVP came with a somewhat tired piston and ported cylinder but still made 150 psi compression. I had bought a 020 parts long block for $5 that had been dropped and cracked the case around the bar stud (it was fixable). The exhaust port and carburetor on this parts saw was packed with mud daubers so I didn't know what to expect but the p/c in it were mint so the AVP got those parts. This saw has also been updated with a WT-15a carb from an 020 super, a late style coil and 3/8 LP bar/ chain so it gets right with it. I used it this week to cut up a large elm tree that I dropped with a larger saw and it was impressive for such a little guy.
The AV was a mess, I guess one of the previous owners was a carpenter because part of it was held together with wood screws (no kidding). Also the case was cracked around the drive side main bearing and the carb was wonky so this one needed a lot of help (I fixed and used the bottom end from the $5 parts saw). The good news with this saw was the p/c were excellent. I used an electronic coil on it and had to index the points flywheel off of the electronic flywheel that came with the AVP, it works but I'd "hint hint" really like to have an electronic flywheel for it.
Whoa and intrigue:
Two of the three oil pumps had incontinent problems and oiled there pants until the bladder ran dry, the fix is to replace the oil pump input shaft seal. As you would expect this tiny seal is spendy, $8 from the dealer but at least it's still available.
Carbs: the Wt-15a just got a cleaning and works perfect, the WA-1 on the other hand needed some help. These carbs are old so you really need to go over them with care, mine had guck on the carb side of the inlet screen so it had to come out to get cleaned up. Also in the jet chamber there were two passages that needed attention (in the photo) #1 there is a tiny passage up in the corner that goes down to the low speed needle, I ran some fine wire through it to get it spotless. #2 you see a gob of JB weld that's because there is a machining passage that was open and it's not suppose to be. It leads right to the main jet in the venturi and just dumps gas past the high speed needle (can you say runs rich?). It must have had epoxy in it from the factory and comes out with time, be careful to just re-seal the top area, ya don't want any JB running down into the passage and queering the jet.
The evolution of the bean counter ( in the photo of the pump gears ), on the left an early gear with a brass bushing, center red gear little later on when the bean counter figured he could save a buck and just use the molded plastic for the bearing, on the right 3/8" picco spur gear to convert over to 3/8" LP chain, note: they've stopped making'm so get'm while you can.
Real weights:
AVP with 14" bar and chain dry, 10 pounds 12 ounces.
AV with 12" bar and chain dry, 10 pounds 2 ounces.
These tiny saws are beautifully made in the old school German fashion and a lot of fun to work on, plus they are good cutters if ya get'm right.
Enjoy!
The AVP came with a somewhat tired piston and ported cylinder but still made 150 psi compression. I had bought a 020 parts long block for $5 that had been dropped and cracked the case around the bar stud (it was fixable). The exhaust port and carburetor on this parts saw was packed with mud daubers so I didn't know what to expect but the p/c in it were mint so the AVP got those parts. This saw has also been updated with a WT-15a carb from an 020 super, a late style coil and 3/8 LP bar/ chain so it gets right with it. I used it this week to cut up a large elm tree that I dropped with a larger saw and it was impressive for such a little guy.
The AV was a mess, I guess one of the previous owners was a carpenter because part of it was held together with wood screws (no kidding). Also the case was cracked around the drive side main bearing and the carb was wonky so this one needed a lot of help (I fixed and used the bottom end from the $5 parts saw). The good news with this saw was the p/c were excellent. I used an electronic coil on it and had to index the points flywheel off of the electronic flywheel that came with the AVP, it works but I'd "hint hint" really like to have an electronic flywheel for it.
Whoa and intrigue:
Two of the three oil pumps had incontinent problems and oiled there pants until the bladder ran dry, the fix is to replace the oil pump input shaft seal. As you would expect this tiny seal is spendy, $8 from the dealer but at least it's still available.
Carbs: the Wt-15a just got a cleaning and works perfect, the WA-1 on the other hand needed some help. These carbs are old so you really need to go over them with care, mine had guck on the carb side of the inlet screen so it had to come out to get cleaned up. Also in the jet chamber there were two passages that needed attention (in the photo) #1 there is a tiny passage up in the corner that goes down to the low speed needle, I ran some fine wire through it to get it spotless. #2 you see a gob of JB weld that's because there is a machining passage that was open and it's not suppose to be. It leads right to the main jet in the venturi and just dumps gas past the high speed needle (can you say runs rich?). It must have had epoxy in it from the factory and comes out with time, be careful to just re-seal the top area, ya don't want any JB running down into the passage and queering the jet.
The evolution of the bean counter ( in the photo of the pump gears ), on the left an early gear with a brass bushing, center red gear little later on when the bean counter figured he could save a buck and just use the molded plastic for the bearing, on the right 3/8" picco spur gear to convert over to 3/8" LP chain, note: they've stopped making'm so get'm while you can.
Real weights:
AVP with 14" bar and chain dry, 10 pounds 12 ounces.
AV with 12" bar and chain dry, 10 pounds 2 ounces.
These tiny saws are beautifully made in the old school German fashion and a lot of fun to work on, plus they are good cutters if ya get'm right.
Enjoy!
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