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techtalk:ref:genmsr04a [2020/10/29 22:35] hippysmack [Modifying a Rubber Stopper for Oil Tank Pressure Testing] |
techtalk:ref:genmsr04a [2020/10/29 22:56] (current) hippysmack [Modifying a Rubber Stopper for Oil Tank Pressure Testing] |
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| It is actually too big and the smallest part of the taper is all you can get into the oil cap hole. \\ | It is actually too big and the smallest part of the taper is all you can get into the oil cap hole. \\ | ||
| - | The 1-5/8" plug was used below. See the before and after pic below. The plug will go in the hole but not very far. \\ | + | The 1-5/8" plug was used below. See the before and after pic below. The 1-5/16" end of the plug will go in the hole but not very far. \\ |
| It is possible to simply hold it into the tank since it will go. But the one below was shaved to allow hands free operation. \\ | It is possible to simply hold it into the tank since it will go. But the one below was shaved to allow hands free operation. \\ | ||
| + | {{:techtalk:ref:genmsr:homemade_test_oil_cap_7_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) \\ | ||
| + | The hole was drilled in three size stepped bits. \\ | ||
| + | Then the fitting was clamped in a vise, the plug pushed hallway on the fitting and snugged up with a wrench. \\ | ||
| + | To test how it would hold under pressure, 100 PSI was applied from the opposite side and the fitting popped out. \\ | ||
| + | Another test was done after the fitting was reinstalled and it held app. 50 PSI well. \\ | ||
| + | But, for testing crankcase pressure, you should be testing more than a 1-2 PSI anyway. \\ | ||
| + | {{:techtalk:ref:genmsr:homemade_test_oil_cap_2_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) {{:techtalk:ref:genmsr:homemade_test_oil_cap_8_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) {{:techtalk:ref:genmsr:homemade_test_oil_cap_1_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) \\ | ||
| - | {{:techtalk:ref:genmsr:homemade_test_oil_cap_7_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) \\ | + | The body was shaved by chucking the fitting into a drill and the plug was spun lightly on top of a rasp clamped in a vise. \\ |
| - | + | Then the roughness was smoothed out by using steel wool wrapped around a file. \\ | |
| - | {{:techtalk:ref:genmsr:homemade_test_oil_cap_2_by_hippysmack.jpg?direct&300|}} {{:techtalk:ref:genmsr:homemade_test_oil_cap_8_by_hippysmack.jpg?direct&300|}}{{:techtalk:ref:genmsr:homemade_test_oil_cap_1_by_hippysmack.jpg?direct&300|}} \\ | + | The fitting was pressed deeper into the plug during this process (not necessary but it happens). \\ |
| + | This can now be used to test crankcase pressure in the oil tank. \\ | ||
| - | {{:techtalk:ref:genmsr:homemade_test_oil_cap_4_by_hippysmack.jpg?direct&300|}}{{:techtalk:ref:genmsr:homemade_test_oil_cap_5_by_hippysmack.jpg?direct&300|}}{{:techtalk:ref:genmsr:homemade_test_oil_cap_6_by_hippysmack.jpg?direct&300|}} \\ | + | {{:techtalk:ref:genmsr:homemade_test_oil_cap_4_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) {{:techtalk:ref:genmsr:homemade_test_oil_cap_5_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) {{:techtalk:ref:genmsr:homemade_test_oil_cap_6_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) \\ |
