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techtalk:ih:oil06 [2020/05/12 04:29] hippysmack [Check oil smudge marks when removing the heads] |
techtalk:ih:oil06 [2020/08/15 03:26] hippysmack [Restricted Tappet Guide Drain Channel] |
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| * More restriction, more carryover. In most cases the restriction is minor and translates to a small amount of carry over, which if left alone creates a bothersome mess. | * More restriction, more carryover. In most cases the restriction is minor and translates to a small amount of carry over, which if left alone creates a bothersome mess. | ||
| * Start looking for pinched hoses or a restrictive oil filter. | * Start looking for pinched hoses or a restrictive oil filter. | ||
| + | |||
| + | ==== Restricted Tappet Guide Drain Channel ==== | ||
| + | |||
| + | Oil from the rocker boxes drains down the pushrod tubes and enters holes in the tappet block to drain down into the gearcase. \\ | ||
| + | The drain channels can stop up sometimes. This backs up oil in the tubes and can cause a leak to form at the tube base. \\ | ||
| + | It could be the gasket or sometimes particles that have lodged in the holes. Try removing the tappet guide, clean / replace them and install new gaskets. ((ironheadjunkie of the XLFORUM http://xlforum.net/forums/showthread.php?t=1379395)) \\ | ||
| + | Some guides have one channel, some two, and there are some that have a spiral. \\ | ||
| + | Over the course of the motors lifetime, there's no telling what year or type of guides they may be since one fits all. \\ | ||
| + | But you do need to get it right, since the oil return thru the guide also lubricates the tappets. \\ | ||
| + | |||
| + | To remove them, some will tap the guides gently to rotate them a little to break the hold then just pull them out by hand. ((Hopper of the XLFORUM http://xlforum.net/forums/showthread.php?t=1379395)) \\ | ||
| + | It will then need a new seal or gasket under the tappet block. | ||
| + | |||
| + | Fairly common with some jugs is the tappet guide hanging up on the cylinder fins when trying to remove it. ((ironheadjunkie of the XLFORUM http://xlforum.net/forums/showthread.php?t=1379395)) \\ | ||
| + | You may need to clearance the base of the jug before you remove the tappet. \\ | ||
| + | Alternately, if you can lift the guide high enough, you may be able to clean the drain channel with the tappet guide still in place. ((The Doctor71 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1379395)) \\ | ||
| + | Try and use compressed air to blow down the drain channel. \\ | ||
| + | |||
| + | The pushrod tube below was holding oil and leaking after the engine was shut off. \\ | ||
| + | {{:techtalk:ih:oil:pushrod_tube_oil_leak_by_the_doctor71.jpg?direct&250|}} ((photo by The Doctor71 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1379395)) \\ | ||
| ==== Transmission Vent Hose ==== | ==== Transmission Vent Hose ==== | ||
