Posted January 4, 201213 yr comment_376379 In the service manual it instructs to use a "conductive sealant" when installing the oil pressure switch. Nissan dealer says they use teflon tape. I don't believe that is conductive. Any advice?Second, after running for a while going into town and restarting it misses badly until I take off and then it hits smoothly on all six. It used to do it only after a an hour or so on the freeways. Now it does it on a trip to town. It has me baffled. Any suggestions would be appreciated.Rod Link to comment https://www.classiczcars.com/forums/topic/41844-77-280-z-oil-pressure-switch-and-rough-running/ Share on other sites More sharing options...
January 5, 201213 yr comment_376465 Teflon tape doesn't conduct, but it always gets shredded when the threads are screwed together, so I don't think it's an issue. I've never seen Tefon tape actually insulate a connection.The rough hot-restart is a common and controversial issue that's the source of much speculation. Many point to fuel vaporization, especially in the hot injectors, sometimes exacerbated by too volatile a mix of fuel. Others point to various leakages in the fuel system. Link to comment https://www.classiczcars.com/forums/topic/41844-77-280-z-oil-pressure-switch-and-rough-running/#findComment-376465 Share on other sites More sharing options...
January 5, 201213 yr Author comment_376475 Thanks for the reply, guess I will just have to live with the rough starts. Link to comment https://www.classiczcars.com/forums/topic/41844-77-280-z-oil-pressure-switch-and-rough-running/#findComment-376475 Share on other sites More sharing options...
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