Thread: 355 SBC noise
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12-02-2004 07:04 AM #1
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355 SBC noise
Has any one heard a fuel pump rod cause a noise like a rod knock??
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12-02-2004 07:18 AM #2
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355 SBC noise
Yup, if the spring on the fuel pump arm is broken or missing it will knock quite loudly.Buy a Buick, they got plenty power!
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12-02-2004 08:38 AM #3
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I'll second that and ad that I've seen this happen a lot and found nothing wrong with the pump cept a lot of free play in the in the pump arm....
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Welcome to CHR. I think that you need to hook up your vacuum advance. At part throttle when cruising you have less air and fuel in each cylinder, and the air-fuel mixture is not as densely packed...
MSD 8360 distributor vacuum advance