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techtalk:ih:carb01g [2019/09/13 00:04] hippysmack [Tillotson Carb Functions, Adjustments, Tuning] |
techtalk:ih:carb01g [2019/09/15 04:18] hippysmack [Intake Leaks] |
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| [[:techtalk:menu|{{ :techtalk:gototechnicalmenu.jpg|}}]] | [[:techtalk:menu|{{ :techtalk:gototechnicalmenu.jpg|}}]] | ||
| - | ====== IH: Carburetor, Intake Manifold & Exhaust Systems - Sub-01g ====== | + | ====== IH: Carburetor, Intake Manifold & Exhaust Systems - Sub-01G ====== |
| \\ | \\ | ||
| ====== Tillotson Carb Functions, Adjustments, Tuning ====== | ====== Tillotson Carb Functions, Adjustments, Tuning ====== | ||
| ===== Tickler ===== | ===== Tickler ===== | ||
| - | This is an original Tillotson on a 1969 XLH. \\ | + | A tickler is any device that is inserted into the bottom hole to 'massage' a little extra gas from the diaphragm. \\ |
| - | It reportedly runs great, once started. \\ But even with electric start, when cold, it sometimes takes quite a bit of cranking to get it going. \\ | + | With the advent off Ethanol, fuel seems to evaporate faster. ((Monte03 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1191289&page=6)) \\ |
| + | By 'tickling' the diaphragm via paperclip or spring type pin, you are allowing fuel to enter the accelerator galley via gravity. \\ | ||
| + | Now when you twist the throttle you will get a clean shot of fuel into the intake. \\ | ||
| + | |||
| + | The Tillotson carburetor runs great, once started. \\ But even with electric start, when cold, it sometimes takes quite a bit of cranking to get it going. ((rgmax of the XLFORUM http://xlforum.net/forums/showthread.php?t=1191289&page=5)) \\ | ||
| Sometimes sometimes twenty kicks later, no start. When warm it sometimes takes 3-4 seconds of cranking to start which still seemed too long. \\ | Sometimes sometimes twenty kicks later, no start. When warm it sometimes takes 3-4 seconds of cranking to start which still seemed too long. \\ | ||
| (even with the carb rebuilt, timing, plugs and valve adjustment all spot on) \\ | (even with the carb rebuilt, timing, plugs and valve adjustment all spot on) \\ | ||
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| There is an old trick of using a paperclip to depress the diaphragm through a small hole in the diaphragm cover on the bottom of the carb. \\ | There is an old trick of using a paperclip to depress the diaphragm through a small hole in the diaphragm cover on the bottom of the carb. \\ | ||
| Starting will improve significantly. \\ | Starting will improve significantly. \\ | ||
| - | |||
| Using the paperclip method can be cumbersome with the fuel line, original air cleaner, circuit breaker and tach cable in the way. \\ | Using the paperclip method can be cumbersome with the fuel line, original air cleaner, circuit breaker and tach cable in the way. \\ | ||
| - | Since vintage ticklers are now pretty much unobtainable, the one below was homemade.\\ | ||
| + | This was made by S&D installed on a HD2D model. \\ | ||
| + | {{:techtalk:ih:carb:tillotson_hd2d_pic_3_by_16ouncepbr.jpg?direct&300|}} ((photo by 16ouncePBR of the XLFORUM http://xlforum.net/forums/showthread.php?t=1191289)) {{:techtalk:ih:carb:tillotson_hd2d_pic_4_by_16ouncepbr.jpg?direct&300|}} ((photo by 16ouncePBR of the XLFORUM http://xlforum.net/forums/showthread.php?t=1191289)) \\ | ||
| + | |||
| + | {{:techtalk:ih:carb:tillotson_hd2d_pic_1_by_16ouncepbr.jpg?direct&300|}} ((photo by 16ouncePBR of the XLFORUM http://xlforum.net/forums/showthread.php?t=1191289)) {{:techtalk:ih:carb:tillotson_hd2d_pic_2_by_16ouncepbr.jpg?direct&300|}} ((photo by 16ouncePBR of the XLFORUM http://xlforum.net/forums/showthread.php?t=1191289)) \\ | ||
| + | |||
| + | Since vintage ticklers are now pretty much unobtainable, the one below was homemade.\\ | ||
| + | This is an original Tillotson on a 1969 XLH. \\ | ||
| {{:techtalk:ih:carb:homemade_tickler_by_rgmax.jpg?direct&300|}} ((photo by rgmax of the XLFORUM http://xlforum.net/forums/showthread.php?t=1191289&page=5)) \\ | {{:techtalk:ih:carb:homemade_tickler_by_rgmax.jpg?direct&300|}} ((photo by rgmax of the XLFORUM http://xlforum.net/forums/showthread.php?t=1191289&page=5)) \\ | ||
| ===== Testing and Repair Checklist ===== | ===== Testing and Repair Checklist ===== | ||
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| * The correct action is leaving a gap of .030' -.060" (1/32"-1/16") between the head and manifold at the skinny lip. This gap needs to be even all around on both heads at the same time. It's in this little gap that the O-ring seals when the clamp squeezes it. When setting heads & jugs for alignment, putting manifold & O-rings (but no clamps) in place, the inside of the manifold should match the inside of the intake port all by itself with no forcing. Don't worry if the gap seems to big. It will shrink when the heads & jugs get tightened. The last test is, when the clamps get tightened, the alignment is still on before you tighten the clamps. You will note that the O-rings are proud of the spigot diameters. When the clamps squeeze the O-rings to the spigot diameter, the seal to gap occurs. During tightening, you may have to tap the manifold back into alignment until the clamps grab onto the spigots. | * The correct action is leaving a gap of .030' -.060" (1/32"-1/16") between the head and manifold at the skinny lip. This gap needs to be even all around on both heads at the same time. It's in this little gap that the O-ring seals when the clamp squeezes it. When setting heads & jugs for alignment, putting manifold & O-rings (but no clamps) in place, the inside of the manifold should match the inside of the intake port all by itself with no forcing. Don't worry if the gap seems to big. It will shrink when the heads & jugs get tightened. The last test is, when the clamps get tightened, the alignment is still on before you tighten the clamps. You will note that the O-rings are proud of the spigot diameters. When the clamps squeeze the O-rings to the spigot diameter, the seal to gap occurs. During tightening, you may have to tap the manifold back into alignment until the clamps grab onto the spigots. | ||
| + | ===== Links,Parts and Services for Tillotson Carbs ===== | ||
| + | Original P/N for a Sporty Tillotson repair parts kit 27147-66 ((rivethog of the XLFORUM http://xlforum.net/forums/showthread.php?t=757993&page=2)) \\ | ||
| + | Original P/N for a Big Twin Tillotson repai parts kit 27137-66 \\ | ||
| + | |||
| + | * Parts list for Tillotson HD carbs: | ||
| + | * [[http://tillotson.ie/wp-content/uploads/2015/07/HD-Series-1-Parts-List.pdf|HD Series 1 Parts List (PDF)]] | ||
| + | * [[http://tillotson.ie/wp-content/uploads/2015/07/HD-Series-2-Parts-List.pdf|HD Series 2 Parts List (PDF)]] | ||
| + | * Service manual for Tillotson carbs: | ||
| + | * [[http://tillotson.ie/wp-content/uploads/2016/03/Tillotson-HD-Series-Carburetor.pdf|Tillotson HD Series Carburetor (PDF)]] | ||
| + | * Servicing for Tillotson carbs: | ||
| + | * [[http://tillotson.ie/market/vintage/?filters=product_cat[repair-kits-parts]|Tillotson Company]]. | ||
| + | * [[https://www.eccarburetors.com/|EC Carburetors]]. | ||
| + | * [[http://thecarburetorshop.com/|The Carburetor Shop]]. | ||
| + | |||
| + | |||
| + | |{{techtalk:ih:carb:tillotson_carb_repair_kit_by_the_doctor71_of_the_xlforum.jpg?direct&300|}}| | ||
| + | |Tillotson Carburetor repair/ refresh kit((Pic courtesy of The Doctor71 of the XLFORUM))| | ||
| + | |||
| + | |||
| + | ---- | ||
| \\ | \\ | ||
