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Post by oleglass on Apr 7, 2009 19:29:08 GMT -5
I am working on another project saw and am having difficulty with the identification. It is marked on the serial number plate: Super SXL Automatic SN-31970926 There is no UT number listed. How can I locate parts without a UT number?  I am trying to locate a carb kit and fuel line for this saw. It has a tillotson carb, with the large fuel elbow installed. Number is Tillotson HS142A and I have another carb that has HS4D on it. I think either carb would work if I can locate a kit. About the fuel line, with the large fuel elbow, I cannot see how I can use the fuel line and grommets like the later saws have. I have tried and was not able to get the smaller line to stretch over the large bulb on the elbow. Any ideas would be greatly appreciated!! |
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Post by MCS on Apr 7, 2009 20:19:32 GMT -5
I don't know when the UT xxxx designations showed up. Maybe after Homelite got into bed with Jacobsen or John Deere. The following information should answer most of your questions regarding serial numbers and how to read them. EXAMPLE: Serial number: 4G1521238 "4" - This number specifies the assembly line the unit was built on. This could also be represented by a letter. "G" - This letter specifies the year of final assembly. (See letter codes below). Before a letter was used to specify the year, a number was used. (See numeric code below). "152" - The next 3 numbers specify the calendar day of the year (day 152). "1238" - This was the 1,238th unit built that day. "G152" - These 4 digits make up the LOT NUMBER. LETTER CODE FOR YEARS: C-1981 D-1982 E-1983 F-1984 G-1985 H-1986 I-1987 J-1988 K-1989 L-1990 M-1991 N-1992 O-1993 P-1994 Q-1995 R-1996 S-1997 T-1998 U-1999 V-2000 W-2001 X-2002 Y-2003 Z-2004 PREVIOUS NUMERIC CODE: 2-1972 3-1973 4-1974 5-1975 6-1976 7-1977 8-1978 9-1979 0-1980 1-1981 Prior to the 9-digit serial number now being used, an 8-digit number was used. The 8-digit number reads the same as the 9-digit number except the assembly line designation was not used. Since your current project has an 8 digit serial and it starts with a 3, looks like a 1973 model. Is it Blue Carb kits are available. To use the smaller fuel line you will have to make some changes as you found out, the small line will not stretch over the larger fuel connector. |
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Post by oleglass on Apr 7, 2009 21:10:55 GMT -5
Since your current project has an 8 digit serial and it starts with a 3, looks like a 1973 model. Is it Blue Carb kits are available. To use the smaller fuel line you will have to make some changes as you found out, the small line will not stretch over the larger fuel connector. Yes, it is blue. How do I make the change to use the small fuel line? Is it possible to change out the fuel elbow to a smaller inlet, or do I have to change carbs? I would rather use the smaller line, as it is available locally. Thanks |
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Post by MCS on Apr 12, 2009 9:11:15 GMT -5
The Super XLAO and the XL-12 share a lot of parts and design. I don't have a real old SXL part listing but I'd bet a cheap case of beer that the molded XL-12 line would work on your saw. This fuel line is readily available from several sources. The line is 3/8" diameter at the large end so you would need a 3/8" hole in the carb. box and gas tank to use this line. Check with forum members for the parts otherwise www.mfgsupply.com has them. You should have the large filter in the tank so order some filters too. If you want to use the smaller line, I think you will have to change the carb. I don't see those carbs listed for the SXL but who knows. |
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Post by OBR on Apr 12, 2009 13:44:32 GMT -5
So who one here has a molded line? Because I need one to. I thought I just needed grommets for an old sxl im fixing for a guy but I see now it has the big carb inlet and large airbox hole. Can anyone help??
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Post by MCS on Apr 12, 2009 17:51:39 GMT -5
It's a beautiful spring day in my part of the state (MN). I just couldn't resist firing up a couple of winter acquisitions - SXLs. Now I know the SXL is very common but man did they sound great  One wouldn't run on it side so I took a peek into the tank and tried to fish out the fuel line. It wasn't broken but is was as stiff as a Perma Hard bar so when on its side the filter couldn't find a low spot in the tank. Some previous owner/mechanic used what I think was hardware store vinyl tubing. I had to cut the line and let the filter drop to the bottom. I could then pull the line out toward the carburetor. This gave me a chance to investigate the fuel line path and connection to the carburetor. Here's the deal... The saw that wouldn't run on its side has a Zama carb. and the fuel connector doesn't have a flare - it is just straight. I have a SXL with a leaking gas tank but the fuel line looked to be in fair condition so I pulled it out. The carb on this saw is an SDC like in OldZips picture on the left. This line is Homelite black flexible line not the yellow stuff - Tygon. I had to trim the bulge that was formed by the SDC nipple and then is fit the straight Zama nipple. With the Homelite line, it looks like it would work with both types of fittings, however the Tygon that is available may not stretch enough. I was back into my SXL IPL trying to understand the foot note that went along with the fuel line. It says "The 63745 Fuel Line is available for A-58767-C and A-65962 Carburetors." These are the same carburetor used in the XL-12. The fuel line for the XL-12 is 63744. Ah Ha, the 63745 is also a molded fuel line! Why different part numbers Because of the difference in reed valve designs, the SXL carb. sits back a little further than the XL-12 hence, two different part numbers for fuel lines. Now I got out my after market molded fuel line and see that it is the SXL length so if you use it on a XL-12 you just have to trim the end to fit. So the old HS4 will work with the molded fuel line. After swapping that fuel line, I started to think about the stuff I got from my brother hardware store. I remember something about fuel line. Sure enough I found the box and it is label as Oregon Fuel Line. OD .211" ID .177" Perfect for the SXLs with small fuel line and small nipple carburetors. And, BTW, yes the 90 deg. nipple can be removed from the carburetor. I have lots of this fuel line |
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Post by oleglass on Apr 16, 2009 20:26:43 GMT -5
It's a beautiful spring day in my part of the state (MN). Here's the deal... The saw that wouldn't run on its side has a Zama carb. and the fuel connector doesn't have a flare - it is just straight. I have a SXL with a leaking gas tank but the fuel line looked to be in fair condition so I pulled it out. The carb on this saw is an SDC like in OldZips picture on the left. This line is Homelite black flexible line not the yellow stuff - Tygon. I had to trim the bulge that was formed by the SDC nipple and then is fit the straight Zama nipple. And, BTW, yes the 90 deg. nipple can be removed from the carburetor. I have lots of this fuel line Thanks for all the info, now, where can I locate a small nipple, or will I have to find a used carb and remove it? Thanks!! |
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Post by redsqwrl on May 27, 2009 15:34:22 GMT -5
Hey just to bounce this thread back to the serial number question above, Would a Super XL Auto with the serial number of: 04531150 be a: 1980 built on the: 453 day? ? it was the: 1150 unit built It is red and Black equally. edit here:   RS |
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Post by redsqwrl on May 28, 2009 12:22:14 GMT -5
Thanks. new to me yesterday. Broke the chain today.
What do you make of the 453rd day of 1980?
A7 do you have any thoughts of the extended leap year in 1980?
mike
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Post by mikem on May 30, 2009 14:12:26 GMT -5
I know what he is talking about with the carb elbows. I ran into that in my carb swapping with the 500. Now I wont swear to this, but I dont see why the elbows cant be changed. They are just a press fit I believe. Here's the dilemma; SDC on the left, HS on the right  I ran into a problem with Tygon stretching over the carb fitting on an SDC. To my surprize, the elbow just pulled out of the carb without using a tool ! I carefully ground the bulge off the nipple and now the Tygon goes on much easier. I used a dab of PermaTex Aviation sealer when I re-installed the elbow back on the carb. |
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Post by MCS on May 30, 2009 22:23:18 GMT -5
Hey just to bounce this thread back to the serial number question above, Would a Super XL Auto with the serial number of: 04531150 be a: 1980 built on the: 453 day? ? it was the: 1150 unit built Not to doubt the serial # info that is available on Chain Saw Collectors, but there could very well be some bugs in that information because, as you pointed out, the calendar quits at 365 or 366 days. I would say the date of 1980 is correct. Your saw does not have a UT # and I'm almost convinced that UTs started with the 9 digit serial. All we can do is guess. ;D |
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