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techtalk:ref:engmech01q [2019/02/18 16:21] hippysmack [Roller end manuf. defect repair] |
techtalk:ref:engmech01q [2019/02/18 17:07] hippysmack [Roller end manuf. defect repair] |
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| It seems aftermarket lifters have a tendency to be wide at the roller end (at the opposite pins holding the roller). \\ | It seems aftermarket lifters have a tendency to be wide at the roller end (at the opposite pins holding the roller). \\ | ||
| Measure them before installing to be sure they won't scratch the lifter bore when turned home. ((Hippysmack of the XLFORUM http://xlforum.net/forums/showthread.php?p=5283285&highlight=lifter+pins#post5283285)) \\ | Measure them before installing to be sure they won't scratch the lifter bore when turned home. ((Hippysmack of the XLFORUM http://xlforum.net/forums/showthread.php?p=5283285&highlight=lifter+pins#post5283285)) \\ | ||
| + | The Fueling lifters below had this problem. \\ | ||
| + | The company (when contacted) said they would replace them but with concerns of receiving the same issue with replacements, these were resized at the base. \\ | ||
| + | |||
| + | The lifter has to be installed in the top facing the flats toward the engine or it hangs up on the cylinder fins. \\ | ||
| + | Once down past the fins, you have to turn them 90 degrees to get the anti-rotation pins in. \\ | ||
| + | The lifter was cutting into the bore while installing them and turning them sideways. \\ | ||
| + | The extruding sides were cutting on the opposite ends of the roller caps and gathering aluminum shavings in the pin hole recesses. \\ | ||
| |{{:techtalk:ref:engmech:sizing_a_fueling_lifter_base_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:engmech:sizing_a_fueling_lifter_base_2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:engmech:sizing_a_fueling_lifter_base_3_by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:ref:engmech:sizing_a_fueling_lifter_base_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:engmech:sizing_a_fueling_lifter_base_2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:engmech:sizing_a_fueling_lifter_base_3_by_hippysmack.jpg?direct&300|}}| | ||
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| So the bore was honed slightly to remove the bulk of the scratches made by the oversized lifter end. \\ | So the bore was honed slightly to remove the bulk of the scratches made by the oversized lifter end. \\ | ||
| - | To keep center on the homemade hone, a bushing was cut on the lathe with a slip fit hole small enough to accept the wire end of the hone. \\ | + | The hone was made from a ball hone with the balls removed and 400 grit sandpaper Gorilla glued to the shaft. \\ |
| - | |{{:techtalk:ref:engmech:sizing_a_fueling_lifter_base_7_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:engmech:sizing_a_fueling_lifter_base_8_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:engmech:sizing_a_fueling_lifter_base_9_by_hippysmack.jpg?direct&300|}}| | + | To keep center on the hone, a bushing was cut on the lathe with a slip fit hole small enough to accept the wire handle. \\ |
| + | |The bores are slanted toward the pushrod cup \\ of each rocker arm.| Homemade hone to lightly clean up the lifter bore. || | ||
| + | |{{:techtalk:ref:engmech:sizing_a_fueling_lifter_base_8_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:engmech:sizing_a_fueling_lifter_base_7_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:engmech:sizing_a_fueling_lifter_base_11_by_hippysmack.jpg?direct&300|}}| | ||
| + | The hone was turned by hand for app. 10 turns (while holding the bushing in place) per lifter bore to clean up the scratches. \\ | ||
| + | Due to the slanted bores, the bushing was raised slightly while honing. \\ | ||
| - | + | |{{:techtalk:ref:engmech:sizing_a_fueling_lifter_base_9_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:engmech:sizing_a_fueling_lifter_base_10_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:engmech:sizing_a_fueling_lifter_base_12_by_hippysmack.jpg?direct&300|}}| | |
| - | |{{:techtalk:ref:engmech:sizing_a_fueling_lifter_base_10_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:engmech:sizing_a_fueling_lifter_base_11_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:engmech:sizing_a_fueling_lifter_base_12_by_hippysmack.jpg?direct&300|}}| | + | |
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| \\ | \\ | ||
| - | |I have my prototype hone drying....400 grit Gorilla glued to the ball hone shaft. | + | |
| ===== Other Useful Links ===== | ===== Other Useful Links ===== | ||
| This is a very good XLFORUM discussion thread on [[http://xlforum.net/forums/showthread.php?t=1933342&highlight=disassembling+lifters|lifters and high lift cams]]. \\ | This is a very good XLFORUM discussion thread on [[http://xlforum.net/forums/showthread.php?t=1933342&highlight=disassembling+lifters|lifters and high lift cams]]. \\ | ||
