Originally Posted by fryzia23 No it isn't, but usually when the bearing goes it'll make noise. And it's more like a gurgle not whining. I never said always btw I
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06-18-2017, 10:29 AM | #16 (permalink) | |
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What do you work on at your shop? A little bit of everything?
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06-18-2017, 10:35 AM | #17 (permalink) | |
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This. Sounds like it's also due to poor maintenance by the previous owner like the OP stated.
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06-18-2017, 10:57 AM | #18 (permalink) | |
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06-18-2017, 11:03 AM | #19 (permalink) | |
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06-18-2017, 12:40 PM | #20 (permalink) | |
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I'd do an inspection of the block (you may be able to use one of the cheap borescopes/endoscopes that you can find online nowadays) for corrosion before going too far.
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06-18-2017, 12:48 PM | #21 (permalink) | |
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06-18-2017, 01:29 PM | #22 (permalink) |
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IMO a coolant flush, tranny flush are the worse 2 things you can do to a car. I've hardly ever heard a good thing about them It's mostly always been a horror story. Your's is just another one on the list of reasons why not to do it. The bottom half of your radiator could be plugged from the scaling that got knocked loose/dissolved from the chemicals they used for the flush.
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06-18-2017, 01:36 PM | #23 (permalink) |
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If your issue is only at idle you need to look at the radiator fans. Make sure they are kicking up to high speed at idle and they are both working. You could test these with Nissans Consult. Not sure how you would do it without the Consult tool. Uprev or Ecutek may be able to do it.
I am going to ask a silly question. Did you remove the bleed screw out of the radiator when filling with antifreeze? Last edited by Spooler; 06-18-2017 at 01:42 PM. |
06-18-2017, 01:37 PM | #24 (permalink) | |
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Chemical flushes worked when engines were made of iron but anything strong enough to eat the corrosion is strong enough to eat aluminum. Very likely. And any other small passages.
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06-18-2017, 01:42 PM | #25 (permalink) | |
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A non-contact tachometer will tell how fast the fans are spinning (may be able to borrow one at a parts store). Not sure how fast they are supposed to turn but that info may be in FSM. Or compare to another Z.
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06-18-2017, 02:04 PM | #26 (permalink) | |
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06-18-2017, 02:08 PM | #27 (permalink) | |
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06-18-2017, 04:46 PM | #30 (permalink) | |
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If the radiator is plugged with sludge, the block probably has some sludge buildup too. I'm still not 100% sure that corrosion/sludge is the problem (although it sounds like the top candidate). If it were me, I'd inspect the radiator and pump before I started replacing parts. I'd do whichever was easiest first. You should be able to get a good idea of radiator condition by pulling the inlet hose and using your borescope.
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