C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

new motor not starting

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Old Nov 2, 2011 | 09:31 PM
  #1  
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Default new motor not starting

Engine seems to be getting fuel, spark, air.

When engine is being turned over it will slightly backfire into the intake.
When timing is adjusted it then sends slight backfire noise thru the exhaust.

The balance of my air diverter emission parts are not completely installed. They appear to be seperate from the controlling equip necessary for operation.

Would this cause my condition, or should the car start regardless?

Please advise in the way of trouble shooting. Where should I start?

Just installed new cap/rotor.

Thank you.
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Old Nov 2, 2011 | 10:42 PM
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Originally Posted by Sober1
Engine seems to be getting fuel, spark, air..
Checked fuel pressure at rail?
Are plugs wet?

Year model helps when asking questions
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Old Nov 2, 2011 | 11:21 PM
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Thanks for response.
I have checked fuel rail by simply pushing shrader valve in...fuel squirted out.
Can smell faint fuel smell after trying to start.

Can you use a tire pressure gauge to check fuel pressure?

I will check for wet plugs after trying to start.

I have checked the vacuum line coming from the f.p. regulator for fuel/fuel smell...none.
I assume diaphram is not leaking.

1989 corvete fixer upper.
rebuilt long block. 99% stock. (1.6 rockers) thats it.

Thanx again.
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Old Nov 3, 2011 | 08:10 AM
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If you confirm your getting fuel, check that your distributor isn't 360° out of sync.
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Old Nov 3, 2011 | 11:39 PM
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Originally Posted by LT401Vette
If you confirm your getting fuel, check that your distributor isn't 360° out of sync.
Rather than insist it is correct I will try turning the rotor bug 180 around.
All other things correct it should fire if that was the only problem.

I will try it now.

It will only take 10 min.
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Old Nov 3, 2011 | 11:50 PM
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rotor can only be installed one direction...
will try changing dist 180 after work tomorrow.
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Old Nov 7, 2011 | 08:44 PM
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Originally Posted by LT401Vette
If you confirm your getting fuel, check that your distributor isn't 360° out of sync.

simple mistake of dist being 180 out was the issue.
thanks for the input. another view makes the difference sometimes.

nice to hear it run.
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