burninator Posted July 12, 2010 Share Posted July 12, 2010 Under deceleration I seem to be getting a loudish rhythmic clanking noise from the engine. One friend who saw it said it sounded like hydraulic lifters making noise and that it could be from low oil pressure. I have an N42 head and I'm fairly certain it has solid lifters though. I don't have an oil pressure gauge hooked up at the moment, but I will by the next autocross (car is not street legal). The noise always stops after a few seconds. Any ideas what it might be? Sorry if it's been answered before, I tried searching and came up empty. Also, noises are hard for me to describe, I hope I'm making sense. Quote Link to comment Share on other sites More sharing options...
johnc Posted July 12, 2010 Share Posted July 12, 2010 Under deceleration I seem to be getting a loudish rhythmic clanking noise from the engine. One friend who saw it said it sounded like hydraulic lifters making noise and that it could be from low oil pressure. I have an N42 head and I'm fairly certain it has solid lifters though. I don't have an oil pressure gauge hooked up at the moment, but I will by the next autocross (car is not street legal). The noise always stops after a few seconds. Any ideas what it might be? Sorry if it's been answered before, I tried searching and came up empty. Also, noises are hard for me to describe, I hope I'm making sense. Oil starvation as the oil in the pan sloshes forward. Overfill by 1/2 quart and see if it goes away. if not, pull the pan and check the pickup. While the pan is off, add a lateral baffle and a lip off the shallow part covering the front part of the sump. Quote Link to comment Share on other sites More sharing options...
burninator Posted July 12, 2010 Author Share Posted July 12, 2010 Oil starvation as the oil in the pan sloshes forward. Ok, that's what we were thinking. Overfill by 1/2 quart and see if it goes away. if not, pull the pan and check the pickup. While the pan is off, add a lateral baffle and a lip off the shallow part covering the front part of the sump. Thanks for that suggestion. Adding half a quart is exactly the kind of thing I was hoping would work. I'll try it out and get that gauge hooked up. Hopefully I won't have to resort to adding baffles. Quote Link to comment Share on other sites More sharing options...
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