cam problems

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Dec 1, 2007 | 11:35 PM

silverbullitLS1

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Staging Lane

Joined: Nov 2007

Posts: 61

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From: Andrews, TX

cam problems

finished puttting my motor back together last night after the cam swap so i started it everything sounded good just a little ticking noise from the intake nothing i havnt heard before so i didnt think nothing of it so i left it alone. so just a hour ago i go to start it for the second time and it starts perfect but when i go for a test drive around the block i start to hear another noise but this one is loud. any ideas of what it could be?

Dec 1, 2007 | 11:50 PM

silverbullitLS1

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Staging Lane

Joined: Nov 2007

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From: Andrews, TX

come on sombody has to have so kind of idea what it is!

Dec 2, 2007 | 02:00 AM

Grimes

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From: Northern NJ

well, be more specific. a sharp metallic sound, or a deep knocking sound?...does it change with RPM?

Dec 2, 2007 | 01:16 PM

ae13291

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From: san fernando valley, california

did u change the oil pump?

Dec 3, 2007 | 02:28 PM

silverbullitLS1

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Staging Lane

Joined: Nov 2007

Posts: 61

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From: Andrews, TX

it was a back fire in the intake do to a loose rocker arm the exhuast vavle wasnt opening so it was coming out of the intake but i fixed the problem.

Dec 3, 2007 | 03:33 PM

2000KnightRider

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From: AZ

I have a hollow sounding knock from my intake. What would that be? I just recently took my PR's out to change my springs due to 2 snapped valve springs. Im thinking its a lifter or just the proverbial sewing machine noise.