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Help with new prop now noise.

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aploss

Post subject: Help with new prop now noise.

Posted: Mon Jul 19, 2010 2:50 pm

Minnow

Joined: Tue Jun 22, 2010 8:47 pm
Posts: 11

Well I put a new prop on the boat this weekend and wow. But it seems now when i put it in drive or reverse is engages hard and loud. May have done before but not sure. Idle is a little high right now, could that be it.? Seems to be at 1200 rpms.

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M3eater

Post subject: Re: Help with new prop now noise.

Posted: Mon Jul 19, 2010 5:16 pm

email admin your custom rank

Joined: Wed Apr 23, 2008 12:14 pm
Posts: 906
Location: New Hampshire

With a 1200 RPM idle, the shifts would be rather "rude". You need to get that idle down.

_________________
Gordon Arnold
New Hampshire

2003 268 Vista ..................................................................Prior: 97 245 Sundowner

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aploss

Post subject: Re: Help with new prop now noise.

Posted: Mon Jul 19, 2010 7:36 pm

Minnow

Joined: Tue Jun 22, 2010 8:47 pm
Posts: 11

What would be a good idle RPM?

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stimpy

Post subject: Re: Help with new prop now noise.

Posted: Tue Jul 20, 2010 3:23 pm

Guppy

Joined: Sun Jun 13, 2010 3:02 pm
Posts: 7

Something closer to 850 rpm. Mine were at 1000+ and used to clunk in gear. Much improved now lowered to 850ish. In gear it now shows on gauge around 650 which is generally the listed spec for a 4.3. I would imagine most engine sizes to be similar.

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qweedqwag

Post subject: Re: Help with new prop now noise.

Posted: Tue Jul 20, 2010 7:15 pm

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Joined: Mon Aug 24, 2009 9:26 pm
Posts: 163

I agree with stimpy the idle seems way to high, that would for sure make it clunk into gear,

_________________
Mike
2007 Horizon 200 SS
5.0 GXi SX drive.

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