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techtalk:evo:engmech02b [2019/02/28 20:41] hippysmack [Test Fit the Lifters] |
techtalk:evo:engmech02b [2019/11/14 04:55] hippysmack [Considerations Before You Begin] |
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| Notice how the left side of the pin touches the wall and the right side doesn't. \\ | Notice how the left side of the pin touches the wall and the right side doesn't. \\ | ||
| The pin diameter is split between the lifter bore and the pushrod tube drain. \\ | The pin diameter is split between the lifter bore and the pushrod tube drain. \\ | ||
| - | {{:techtalk:evo:engmech:91-99_lifter_pin_screw_upgrade_42_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) | + | |
| + | The pin sits just a few thousandths away from the lifter flat also. \\ | ||
| + | {{:techtalk:evo:engmech:91-99_lifter_pin_screw_upgrade_42_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) {{:techtalk:evo:engmech:91-99_lifter_pin_screw_upgrade_52_by_hippysmack.jpg?direct&400|}} ((drawing by Hippysmack)) | ||
| Simplified drawings of the upgrade: \\ | Simplified drawings of the upgrade: \\ | ||
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| {{:techtalk:evo:engmech:91-99_lifter_pin_screw_upgrade_31_by_hippysmack.jpg?direct&400|}} {{:techtalk:evo:engmech:91-99_lifter_pin_screw_upgrade_32_by_hippysmack.jpg?direct&400|}} ((drawings by Hippysmack)) | {{:techtalk:evo:engmech:91-99_lifter_pin_screw_upgrade_31_by_hippysmack.jpg?direct&400|}} {{:techtalk:evo:engmech:91-99_lifter_pin_screw_upgrade_32_by_hippysmack.jpg?direct&400|}} ((drawings by Hippysmack)) | ||
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| + | Factory tappet pin clearance on an 05 engine. \\ | ||
| + | {{:techtalk:evo:oil:05_tappet_screws_1_by_johnk.jpg?direct&300|}} ((photo by JohnK of the XLFORUM http://xlforum.net/forums/showthread.php?t=1422877&page=6)) | ||
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| Below is an example gone wrong using a scrap piece of aluminum. \\ | Below is an example gone wrong using a scrap piece of aluminum. \\ | ||
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| |{{:techtalk:evo:engmech:91-99_lifter_pin_screw_upgrade_49_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:engmech:91-99_lifter_pin_screw_upgrade_50_by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:evo:engmech:91-99_lifter_pin_screw_upgrade_49_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:engmech:91-99_lifter_pin_screw_upgrade_50_by_hippysmack.jpg?direct&300|}}| | ||
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| + | You can use a feeler gauge between the pin and lifter flat. \\ | ||
| + | The gauge below has wide blades so the lifter was raised without the pin installed, lowered and the pin was inserted. \\ | ||
| + | In this case, start with the smallest feeler gauge and work up in size until the screw will no longer go in the hole. \\ | ||
| + | The lifter below has app .001" clearance to the pin screw. \\ | ||
| + | |||
| + | |{{:techtalk:evo:engmech:91-99_lifter_pin_screw_upgrade_47_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:engmech:91-99_lifter_pin_screw_upgrade_48_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:engmech:91-99_lifter_pin_screw_upgrade_51_by_hippysmack.jpg?direct&300|}}| | ||
| If a screw locks up a lifter when installed, the back hole did wander away from center. \\ | If a screw locks up a lifter when installed, the back hole did wander away from center. \\ | ||
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| |{{:techtalk:evo:engmech:91-99_lifter_pin_screw_upgrade_36_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:engmech:91-99_lifter_pin_screw_upgrade_37_by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:evo:engmech:91-99_lifter_pin_screw_upgrade_36_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:engmech:91-99_lifter_pin_screw_upgrade_37_by_hippysmack.jpg?direct&300|}}| | ||
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| ====== If the lifters lock up ====== | ====== If the lifters lock up ====== | ||
