engine pops back thru the exhaust

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05-16-2009, 08:11 AM

alleyk

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engine pops back thru the exhaust

460 ford installed new cam lifters and springs(hydraulic) new wiand plugs< what can it be

05-16-2009, 08:13 AM

mopar1968

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More info, when does it do this, street car, race car :?: :?:

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05-16-2009, 08:52 AM

alleyk

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race car, mostly at idle

05-16-2009, 09:38 AM

dparker

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Valve staying open or closed.....

05-16-2009, 11:02 AM

TS1955

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Sounds like ya have a valve or two too tight to me! JMO

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05-16-2009, 11:36 AM

dparker

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Sometimes it takes a little while for the lifters to pump up. Make sure you recheck the lash after you run the engine a little while. If there pumped up you should have oil coming off all the rockers.

05-16-2009, 12:30 PM

mopar1968

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Yeah i would have to agree, back the lash off a bit and see what happens :!: :!:

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