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Jeff Rose
06-23-2002 20:34:32
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I am Jeff Rose. Thanks for all the advice from all of you on my newly purchased CA, But I still need your help. If anyone could give me any mmore Advice on where to go next I would Appreciate it. This one has my Dad( a mechanic in the 50's and 6o's) and myself stumped. I will try to list what we have already done... hopefully in the order we performed the task. I had purchased the CA at an auction.Brought it home, ran it for a few hours of grass cutting. When I went to back her into the barn, I "Idled down" and noticed her surging bad. It was late so I figured I would check it out later. next Time I started her she was fine, ( I had changed the oil, checked the plugs, changed the oil breather, and check the radiator.) She idled just fine so I put a little gas in her( same gas is used on other equipment) She worked just fine for about 15 minutes of cutting than the surging came back. The only way to keep her running was to pull chock full out. She has no power to run PTO mower when you do that, so back to the barn. I was thinking maybe trash in the gas line, so I emptied the cinnamon bowl( not much trash there) , and blew out the gas line to carb. got her started , idles ok but surge came back when I went to pull her out of the barn. Found a carb kit at NAPA(although it was for a few different zenith carbs, not all the jets came in the kit.) Rebuilt the carb , blew out the lines, adjusted Timing. Emptied the gas tank and wiped the tank out as best I could. got her idling smooth, was able to cut for a few hours...then surge came back. so I figure trash from the tank. Back to the barn empty cinnamon. bowl...blow out the lines...still surges. At this point I think maybe leak in intake manifold. Get her idling ..spray wd 40 ...then carb cleaner around the intake. and no difference in idle speed. By now I have received your notes. so dad set the jet to where you suggested ... and did a little timing work.. and got her to purr like a kitten. ( that was yesterday..I had our son at ball tournament ) Dad took her out this afternoon tho test cut some grass. He drove to the end of his long lane...no problem... Turned on PTO. cut about 30 yards..and ..SURGE again!!! He played with her some out there. Air mix screw...timing .. nothing. We don't know what to do next. there does not appear to be any junk in the lines anywhere. I will try to find a new carb ...but if I am going to that expense,,, I want to know I am on the right track. Same if I try to find a better rebuild kit. It seems to us to be a fuel problem...But what??? I know this is quite a long note. And I expect to compensate you for your Time and Advice... But the grass is getting taller...and we don't know what to do next. Any help is appreciated and thanks Jeff Rose
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