LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Fresh Rebuild First Startup check list

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Old 11-19-2010, 12:05 AM
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Default Fresh Rebuild First Startup check list

Hello friends, been working on my rebuild for over a year now. Motor was rebuilt, new clutch, new heads, cam, headers, etc. Pretty much everything has been replaced. I finally dropped on the intake manifold tonight, so things are pretty close to being done. I guess I am a little scared/paranoid about firing her up for the first time so I wanted some input on things I should double check/remember to do. Any input is appreciated.

Before Startup:

1.) Oil (Bought some Rotella 15-40 SAE)
2.) Coolant - fill and bleed out air
3.) Fresh fluid/bleed for clutch system

After Startup:
1.) Retorque Header bolts after a few heat cycles, add lock washers
2.) Varying RPMs, fresh oil/filter change after 25 miles or so.
3.) Make sure new EWP is running.

What else? Thanks!
Old 11-19-2010, 12:18 AM
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Most importantly, did you prime the oil system?

When you start the motor, the last thing you want to do is let it idle for too long. Make sure you've got good oil pressure, then go out and drive it. Do several 3/4 throttle pulls in a row to help seat the rings. The worst possible thing you can do is be easy on it. Don't be afraid.
Old 11-19-2010, 07:32 AM
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Check for leaks before you take off and I've always said "break it in like you plan to drive it".
Old 11-19-2010, 11:43 AM
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Originally Posted by RamAir95TA
Most importantly, did you prime the oil system?

When you start the motor, the last thing you want to do is let it idle for too long. Make sure you've got good oil pressure, then go out and drive it. Do several 3/4 throttle pulls in a row to help seat the rings. The worst possible thing you can do is be easy on it. Don't be afraid.
I did not prime the oil system, I was under the impression that it was not critical. Is this a catastrophic mistake?
Old 11-19-2010, 12:05 PM
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make sure that you dont have the fuel pump relay in and turn the motor over till you get pressure.. you should have done that before putting the motor in
Old 11-19-2010, 12:08 PM
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Originally Posted by speedracer2536
make sure that you dont have the fuel pump relay in and turn the motor over till you get pressure.. you should have done that before putting the motor in
Can you be a bit more specific, I am not sure I follow.

I was going to off/on the key a few times to get the lines filled up and to the injectors before trying to turn it over.
Old 11-19-2010, 12:23 PM
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pull ur injector fuses an ignition fuse, turn the key till u get 40-60lbs of oil pressure. Put the fuses back in an start. oil pump is then primed.
Old 11-19-2010, 12:27 PM
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Awesome thank you!
Old 11-19-2010, 01:17 PM
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thats what i meant lol not fuel pressure.. oil pressure



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