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

Optispark vent tube routing, 95 LT1

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Old Jul 24, 2024 | 12:27 PM
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Default Optispark vent tube routing, 95 LT1

Is anyone familiar with exactly how the vent tubes route up from the opti, especially in relation to the water pump?
I have the 2 hoses in what seems to be their natural place but I am struggling to get the pump on and when i get it on, i cant get the third (short) bolt started.
If i go on the outside, it seems like it will interfere with the belt.
Thanks!

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Old Jul 24, 2024 | 04:44 PM
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You should be able to get an idea of the routing from Figure 5
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File Type: pdf
IGNITION SYSTEM.pdf (2.83 MB, 310 views)
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Old Jul 24, 2024 | 05:11 PM
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Originally Posted by FrankieD
You should be able to get an idea of the routing from Figure 5
That is helpful, thank you.
It looks like the vent lines run around the outside of the water pump, like i have it. Maybe I will pull the belt tensioner off to open up some space to get the water pump bolts started.

Thank you.
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Old Jul 25, 2024 | 11:26 AM
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Update -
water pump is in, vent hose is routed. I moved the coil out of the way so I had more space to position the water pump while holding the vent tubes off to the side.
It was either move the coil or move the throttle body, either way i needed more room to get the pump, gaskets, and vent tube all in position.
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