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Mister_Perkins
 Post subject: Mechanical pump question
PostPosted: Sat May 30, 2009 11:56 am 
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I just bought a brand new mechanical pump and hooked it up and I was only getting 2.5Psi max with no return. I'm assuming the lobe from the camshaft is wore out. How can I tell?

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Aggressive Ted
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PostPosted: Sat May 30, 2009 1:23 pm 
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Supercharged
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Turn the engine over by hand using a wrench, not the starter!.......set up a magnetic base with probe and gauge and then turn it over and see how much lift it provides at the gauge.

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Aggressive Ted

http://cid-32f1e50ddb40a03c.photos.live ... %20Swinger


74 Swinger, 9.5 comp 254/.435 lift cam, 904, ram air, electric fans, 2.5" HP2 & FM70 ex, 1920 Holley#56jet, 2.76 8 3/4 Sure-Grip, 26" tires, 25+MPG
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Mister_Perkins
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PostPosted: Sat May 30, 2009 1:26 pm 
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how much lift is it supposed to have? isnt the stock lift .395?

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Aggressive Ted
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PostPosted: Sat May 30, 2009 1:33 pm 
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Supercharged
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For a stock cam at least .300 at a minimum. There should be about .380 to .400. It is the same as your other cam lobes. I have a used cam and just looked at it.

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Aggressive Ted

http://cid-32f1e50ddb40a03c.photos.live ... %20Swinger


74 Swinger, 9.5 comp 254/.435 lift cam, 904, ram air, electric fans, 2.5" HP2 & FM70 ex, 1920 Holley#56jet, 2.76 8 3/4 Sure-Grip, 26" tires, 25+MPG
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Mister_Perkins
 Post subject:
PostPosted: Sat May 30, 2009 2:01 pm 
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alright.. well I'll have to drag it down there tomorrow to confirm the lift on it.

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