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Old 12-23-2010, 08:46 AM
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New Engine, and Gas Lines..Starting Question...

I getting ready to fire this engine up. It is a all new performance build. Solid Roller. Since the engine has been out I replaced the complete fuel system from P-up in tank to the carb (all -8an). So my question is since there is no gas in the lines/pump should I worry or just crank it over. I thought I would add some gas to the carb, so it would fire..just don't know how long it will take to get gas to the carb. The Gas pump is the New Holley Billet (175gph) mechanical. Suggestions or recommendations. I just got done priming the engine/oil, so I ready to fire this baby up.
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Old 12-23-2010, 10:01 AM
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I would put a little splash of gas in the carb to help the fuel from the tank to the fuel pump faster. The other option is just let the motor crank since you primed the engine, should not take to long 20-30 seconds. Nice looking Camaro.
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Old 12-23-2010, 10:09 AM
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Sounds good. Thats what I was thinking. Plus the new HP Holley fuel pump should pull the gas quick. Thanks
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Old 12-23-2010, 10:49 AM
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I would get the fuel system filled, the carb float bowls filled, ETC.
You have a new camshaft, you need the engine to fire, immediately, and run at about 2500 RPM, for about 20 - 30 minutes.
Make sure the ignition timing is set statically, before you crank the engine.
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Old 12-23-2010, 10:54 AM
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Quote:
Originally Posted by DanielC
I would get the fuel system filled, the carb float bowls filled, ETC.
You have a new camshaft, you need the engine to fire, immediately, and run at about 2500 RPM, for about 20 - 30 minutes.
Make sure the ignition timing is set statically, before you crank the engine.
It's a roller-the cam break-in period isn't required. However, I agree with everything you suggested to do fuel-wise.
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Old 12-23-2010, 10:56 AM
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What I suggested was based on the engine being a roller block. If the engine was a flat tappet build I would have suggested something different.
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Old 12-23-2010, 11:33 AM
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Sounds good. Will find out here in a few on how well I did or did not do...
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Old 12-23-2010, 12:29 PM
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I would treat it like an engine that just ran out of gas. Be careful if you decide to prime the carb. for initial start up because if the timing is off some a backfire could spell disaster. let the Bad A fuel pump do the work as it shouldn't take long for the fuel to reach the carb.
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Old 12-23-2010, 12:47 PM
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I stand corrected, I missed the part about a roller cam.
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Old 12-23-2010, 01:08 PM
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If you know the timing is close, a couple of drops of gas seem to help first fire - the engine firing seems to pull the gas that much faster, filling the float bowls. Put the air cleaner on - I have seen fire balls scorch a 10 foot high ceiling on first fire or set under hood insulation ablaze.
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Old 12-23-2010, 01:54 PM
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I do not know if this is common knowledge, or not, but if you get a fire inside the carb venturis, keep cranking. Many times it will just suck the fire back into the manifold, and put it out.
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Old 12-23-2010, 02:12 PM
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Update

Well. I set the timing where I thought it would be close. Added a little fuel to the carb hit the key and it fired up. Then stoped did the same thing fired right back up... No fuel leaks ...wow surpized me. Set the timing, so now its just fine tuning finishing up some small things.. Thanks
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