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Post by sweepleader on Jan 14, 2017 16:40:36 GMT -5
You may have seen the start of this in: houseofhomelite.proboards.com/thread/5310/xl500-crankcase-numbers-questionThis is the finish. I was trying to salvage a newer SXL drive case to use in my XL-500 so I would have the 3/8" bar studs. Check out these crankshaft bearing retaining screws.   Half of each screw head is missing. So I made this sleeve to hold this reground screw driver in place on the remaining half of the head. The screw head was 5/16" OD so I made the sleeve 5/16+ and ground the driver sides to fit inside.   That worked on the first one, the second one just sheared off more of the head so I ground a bolt:   And welded it to the screw, not so easy, I am not great at welding but I do own a TIG unit so it worked:  Then I needed to extract the pressed in bearing from the drive case. I used two large screwdrivers in the bearing groove to lever it out:   Worked great, the screws were a PITA but my saw will have big studs. The factory thought the later saws should have bigger studs so I am going with them. I am not completely certain that the drive case will fit the other parts of the XL-500 but I have a good feeling about it and will soon know for sure. Have I had trouble with the studs? Nope. I just wanted the saw to have the newest factory parts that will fit! It is also getting an XL-400 crank with the larger/later 31 roller rod journal too, just because the factory thought the newer saws should have it too. |
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Post by bdm53ent on Jan 14, 2017 19:16:16 GMT -5
Glad it worked out. Im struggling with the ones in a C51 right now. Impact driver wouldnt budge them so I walked away. I will go back when Im in a better mood.
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Post by sweepleader on Jan 14, 2017 19:24:49 GMT -5
I have had luck when screws were stuck by adding valve lapping compound to the tip of the impact driver. When you smack the driver with the hammer, the grit in the lapping compound bites into both the bit and the screw. The lapping compound can be bought at NAPA, its just grease and carbide powder, often works with hand screwdrivers too (if you tap the driver into the screw).
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Post by lesorubcheek on Jan 14, 2017 19:52:31 GMT -5
That's one great job! Thanks for sharing your methods. Always a good feeling when you're finished and realize it all worked as planned.
Dan
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Post by onlyhomelites on Jan 15, 2017 11:49:19 GMT -5
Wow, I'm glad I haven't had a set of screws be that much of a PITA! Creative solutions, glad they worked Dan!
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Post by Clasec on Jan 15, 2017 23:44:25 GMT -5
sweepleader said.
Is an XL660 an upgraded XL500? Bigger rod and crankshaft?
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Post by sweepleader on Jan 16, 2017 8:02:19 GMT -5
I don't know anything about the XL660 other than it is the same bore and stroke according to Acres' site. The factory offered the bigger rod throw crank and rod with 31 rollers as replacement parts for the XL-500. The crankcase had to be changed to allow room for the bigger rod bearing. I don't think they ever built XL-500's that way. Its possible the XL-660 had the bigger bearing, I could not find an IPL for it, the XL-600 or the XL-700 that showed how many rollers the bearing had. The replacement parts for the larger bearing were offered about the time the XL-600 was released so I would have to think that it would have the larger design. No documentation to back that up. I have never heard anything about why they changed the bearing but would have to assume they had hard use problems they wanted to eliminate. Someone on a forum a couple of years ago mentioned that the XL-500 had crank issues without backing that up, perhaps based on the service memo describing the bigger bearing parts.
Anyone else know anything about this?
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Post by undee70ss on Jan 16, 2017 16:07:22 GMT -5
What model TIG? Now that's something I have always wanted. With TIG you can weld just about anything, and the foot pedal gives superior heat control. |
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Post by sweepleader on Jan 16, 2017 18:26:28 GMT -5
but I do own a TIG unit so it worked: What model TIG? Now that's something I have always wanted. With TIG you can weld just about anything, and the foot pedal gives superior heat control. Its an antique (see a common thread here?) Airco unit. I bought it many years ago from my then employer. It was old then. I am guessing it is from the 60's. It is big and powerful though, I can and have welded 1/2" thick aluminum with it. It is fused at 220 volts and 100 amps. It needs it when it is turned up all the way, I think it will run 5 to 480 amps. I know I can melt the torch with it if something goes wrong with the cooling system. It pumps coolant through the torch. I don't know much about the new units, they are much more efficient and compact. I paid $600 for this one in about 1975, I am pretty sure the new consumer units are less than that. I have cables that will reach my driveway so I can reach just about anything. You should own one, there are lots of things out there waiting for you to weld. Its pretty easy once you get the dials set, a lot like using a gas welder only more concentrated power. Little tiny screws in mag are not so easy. |
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Post by undee70ss on Jan 16, 2017 22:17:02 GMT -5
What model TIG? Now that's something I have always wanted. With TIG you can weld just about anything, and the foot pedal gives superior heat control. Its an antique (see a common thread here?) Airco unit. I bought it many years ago from my then employer. It was old then. I am guessing it is from the 60's. It is big and powerful though, I can and have welded 1/2" thick aluminum with it. It is fused at 220 volts and 100 amps. It needs it when it is turned up all the way, I think it will run 5 to 480 amps. I know I can melt the torch with it if something goes wrong with the cooling system. It pumps coolant through the torch. I don't know much about the new units, they are much more efficient and compact. I paid $600 for this one in about 1975, I am pretty sure the new consumer units are less than that. I have cables that will reach my driveway so I can reach just about anything. You should own one, there are lots of things out there waiting for you to weld. Its pretty easy once you get the dials set, a lot like using a gas welder only more concentrated power. Little tiny screws in mag are not so easy. Right now all I have is a Lincoln AC225 (buzz box) and a set of oxy/acetylene torches. I learned to TIG weld when I took welding in school. They were Lincoln and Miller machines. I got the buzz box for a Xmas present when I was 17yrs old. The oxy/acetylene torches I mostly use for brazing or a "fire wrench". One of these days I'm going to get a TIG. |
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Post by sweepleader on Oct 9, 2017 7:01:26 GMT -5
Have you ever gotten your TIG welder?
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Post by undee70ss on Oct 9, 2017 17:14:29 GMT -5
Have you ever gotten your TIG welder? No. Matter of fact, except forcing myself to go to work, I have done nothing constructive, and I mean nothing, in the last 5 weeks. |
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Post by sweepleader on Oct 9, 2017 19:33:40 GMT -5
I would argue that you have been pretty constructive around the House in that time. :{)
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