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04-13-2019, 02:22 AM | #23 |
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Fully charge the battery and try again. Better yet, if you have access to a workshop power supply connect it and then cold start it. The charger will reduce to load on the alternator to almost zero and if the alternator is at fault then your noise should reduce in duration or be gone.
On engines that have clutched alternator pulleys, a chirping belt is a symptom but i have found no documentation on this species of Denso alternator. The pulley visually looks like a solid steel pulley. All N20 and N55 harmonic balancers have a bit of wobble in them. Even on brand new cars. The reason for using the flywheel lock tool is so you don't use the central crank bolt to counter hold the crank whilst tightening the harmonic balancer bolts. If that central bolt loosens, you cannot guarantee the engine is timed correctly anymore as there is no key. |
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04-13-2019, 10:10 AM | #25 | |
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Oh, and don't buy Gates belts, I suppose... |
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04-16-2019, 06:18 AM | #26 | |
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04-26-2019, 08:16 PM | #27 |
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As odd as it seems, I went through this last fall. It's likely the valve cover. $120 on ebay with a new gasket and it takes about 2-3 hours.
You must remove the cowling under the windshield( which means the wipers) and the braces/supports. It makes getting the three bolts on the back easy. Otherwise it's an insane nightmare. the 3 mins to get that stuff out of the way makes it easy.
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05-26-2019, 02:49 PM | #28 |
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Sidenote, I also just recently started chasing a squeak - serpentine belt, deflector pulleys, and tensioner and over running alternator got it.
But the surprise kicker was that I had to floss the crank pulley/harmonic balancer with twine. I was measuring for some bypass length belts and noticed the twine was extremely nasty. I found way too much grime accumulated in the CP/HB so I flossed it till the twine was clean and no more grime in any of the v groove channels. Started up with new belt extremely quiet. almost too quiet. It's nice.
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05-27-2019, 07:10 AM | #30 | |
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Leaky oil filter housings melt the rubber belt, which adds to this problem. |
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05-27-2019, 07:33 AM | #31 | |
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