TwinTurbo.NET: Nissan 300ZX forum - sounds like a rod knock
Subject
sounds like a rod knock
Posted by
canyoncarver
on September 17, 2010 at 7:18 PM
This message has been viewed
236
times.
In Reply To
Engine tapping noise (video included). Opinions wanted.
posted by SeedyROM
on September 16, 2010 at 11:44 PM
Message
If it is, you'll usually hear it the loudest from just behind the front wheels at ground level. It is definitely timed to crank rotation speed and not cam speed.
Follow Ups
Engine tapping noise (video included). Opinions wanted.
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SeedyROM
23:44:01 09/16/10
Doesn't sound like lifters, could be a rod bearing going
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ae300z
01:25:25 09/17/10
I missed my opportunity while out shopping.
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SeedyROM
01:35:22 09/17/10
It can start randomly, and will usually get worse.
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canyoncarver
19:42:29 09/17/10
That's too loud to be the lifters
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ZXRider
02:04:48 09/17/10
Yeah, strange isn't it?
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SeedyROM
02:14:50 09/17/10
Definitely strange. How is your oil pressure at idle?
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ZXRider
02:21:59 09/17/10
~40ish
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SeedyROM
04:10:03 09/17/10
Sounds like a rod knock...
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Ted (92TT)
04:07:26 09/17/10
Mine was the opposite.
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Woody75 (Denver)
11:47:11 09/17/10
Yeah, that's how my white Z was when it went
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SeedyROM
14:55:05 09/17/10
Yeah, I'll probably switch back just to see
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SeedyROM
15:31:06 09/17/10
Re: Engine tapping noise (video included). Opinions wanted.
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TheBoss
07:54:19 09/17/10
Running W50 oil
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SeedyROM
15:30:07 09/17/10
have you tried turning on your VTC?
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aliaZ
14:20:58 09/17/10
Don't have a Blazt, however
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SeedyROM
15:41:48 09/17/10
I've been tracking this problem in my brother's car for
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zQuikonE
15:12:41 09/19/10
Appreciate it
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SeedyROM
22:38:25 09/19/10
you're welcome (n/m)
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aliaZ
11:23:55 09/21/10
sounds like a rod knock -
canyoncarver
19:18:59 09/17/10
Damn, I hope not.
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SeedyROM
04:38:35 09/18/10
I agree, time to call Kyle (n/m)
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spyhunterTT(nj)
13:02:18 09/18/10
Has anyone ever actually had intermittent rod knock?
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SeedyROM
13:22:49 09/18/10
Eliminate all other variables first.
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ZiNnYc
23:26:53 09/18/10
Will do (n/m)
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SeedyROM
01:12:51 09/19/10
rod knock is not "supposed to" do anything
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canyoncarver
12:32:53 09/19/10
Exactly (n/m)
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Ted (92TT)
10:33:07 09/20/10
thats rod knock , quite sure of it (n/m)
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ztunerz
21:45:29 09/19/10
Intake cam gear or rod knock sounds more like rod knock.
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John (MD)
14:47:26 09/20/10
That's the plan today. I'll followup soon. (n/m)
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SeedyROM
16:09:04 09/20/10
Let us know hopefully it is not a rod bearing (n/m)
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John (MD)
20:03:55 09/20/10
UPDATE>>>>
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SeedyROM
21:21:55 09/20/10
Re: UPDATE>>>>
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Ted (92TT)
22:49:04 09/20/10
No doubt =) (n/m)
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SeedyROM
22:54:53 09/20/10
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