Differences
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techtalk:evo:engmech02b [2019/02/28 20:51] hippysmack [Test Fit the Lifters] |
techtalk:evo:engmech02b [2019/03/01 03:04] 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: \\ | ||
| Line 175: | Line 177: | ||
| |{{: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|}}| | ||
| - | |||
| - | If a screw locks up a lifter when installed, the back hole did wander away from center. \\ | ||
| - | The lifter below was moving fine with the bolt inserted and threaded to the head but not tightened. \\ | ||
| - | It locked up as soon as the bolt was torqued to 10 in lbs. \\ | ||
| - | Upon tightening, the bolt flexed in the middle as in the example diagram above against the lifter. \\ | ||
| - | |||
| - | |{{: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|}}| | ||
| You can use a feeler gauge between the pin and lifter flat. \\ | You can use a feeler gauge between the pin and lifter flat. \\ | ||
| Line 188: | Line 183: | ||
| The lifter below has app .001" clearance to the pin screw. \\ | 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_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. \\ | ||
| + | The lifter below was moving fine with the bolt inserted and threaded to the head but not tightened. \\ | ||
| + | It locked up as soon as the bolt was torqued to 10 in lbs. \\ | ||
| + | Upon tightening, the bolt flexed in the middle as in the example diagram above against the lifter. \\ | ||
| + | |{{: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|}}| | ||
| ====== If the lifters lock up ====== | ====== If the lifters lock up ====== | ||
