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12-24-2006, 06:05 PM
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Engine wont turn fast.
Today I made an attempt to get the truck all wired up with the new engine and do the break in. The engine spins very slowly even without all the other things turned on 2 fans water pump and fuel pump. I thought maybe the starter was binding so I shimmed it. It spun a lot faster but not enough to light it up. The shims are super thin maybe 1/32 each. Does it need more shimming or more power. The battery is a 875 CCA fully charged and a jump box that can run 800 amps. Its a powermaster master torque starter. The engine is 10.5 CR but the starter can turn 18:1. Its a small block chevy. Shoot some ideas at me and let me know what you think.
Thanks for any replies. 
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12-24-2006, 06:10 PM
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Wire size, terminal connections? Ground? Just some ideas.
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12-24-2006, 06:19 PM
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tite motor,
 try truning by hand 
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12-24-2006, 06:27 PM
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i would vote for more power. hook a charger up to the battery and see if it makes any dif
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12-26-2006, 05:01 PM
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I have re checked everything and have 5 shims on starter and it spins better but still not enough. I have 4awg from positive to BAT+ on starter.The battery is a 875cca. with the jump box on or off it spins same amount. For the people that says it needs more power what do you suggest. A dry cell 16v racing battery? A red or yellow top optima? Or anything else that you guys run?
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12-26-2006, 05:10 PM
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Try disconnecting the coil and see if it turns over faster. If it does your timing is to far advanced.
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12-26-2006, 05:19 PM
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I have HEI and the everything is on a switch. Ignition, fuel pump, water pump, fan 1, fan2. They are all independent. The starter is on a push button switch. Its going slow even without everything else on.
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12-26-2006, 05:28 PM
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Just to be clear. You tried turning the starter with no power going to the hei etc. ?
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12-26-2006, 05:30 PM
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I allways run chassie grounds to the motor.clean all connection.
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12-26-2006, 05:35 PM
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Quote:
I do have the main power coming into the truck cab attached to the BAT side of starter like OEM. 4awg from POS to Starter, then above that I have lead running to cab on same post.
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12-26-2006, 05:39 PM
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If your starter is hooked up correctly its really a no brainer, you should be fine. You've probably got too much initial advance with that much compression and the motor is kicking back on the starter. Sounds just like a low battery when that happens. Try to reduce your initial advance-
K
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12-26-2006, 05:40 PM
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you should do like weirdbeard said and get it turning over with out trying to start it.pull all plugs out ,check grounds,it takes time and it's a pain in the ***,but has to be done!
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12-26-2006, 05:46 PM
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Quote:
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12-26-2006, 06:15 PM
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Weak starter....Have you tried a different one?
__________________
Ontario Rodders
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12-26-2006, 06:41 PM
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Quote:
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