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Procedural question: Bad injectors flooded car, replacing them today.

DEN 14

Member
Joined
Oct 30, 2013
Messages
8
Location
United States
Corvette
1992 Bright Red Convertible
Injectors flooded the motor and gas got into the oil. I drained the oil and replaced with new oil and filter. I let the car drain for an hour to let every drop I could out of it. My question is this: Now that I am replacing the injectors( full set of Bosch 3 from Jon at FIC. Great guy and a great business!) Is there a need to somehow get the excess gas from the cylinders that were flooded before I go to restart the motor? Or...would the excess or un-burned gas have already passed out of the cylinder into the oil that I removed from the car? Thanks for the help and I am glad to have you all as a new resource of info as this is my first C4. Den
 
Injectors flooded the motor and gas got into the oil. I drained the oil and replaced with new oil and filter. I let the car drain for an hour to let every drop I could out of it. My question is this: Now that I am replacing the injectors( full set of Bosch 3 from Jon at FIC. Great guy and a great business!) Is there a need to somehow get the excess gas from the cylinders that were flooded before I go to restart the motor? Or...would the excess or un-burned gas have already passed out of the cylinder into the oil that I removed from the car? Thanks for the help and I am glad to have you all as a new resource of info as this is my first C4. Den


Just to be safe I would pull the plugs, disable the ignition, and crank the vehicle over and check for any fuel coming out of the cylinders. The last thing you want to have happen is hydrolocking a cylinder. Changing the oil and filter after running the vehicle for a while would be a good idea also. Good luck with it. :)
 
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Just to be safe I would pull the plugs, disable the ignition, and crank the vehicle over and check for any fuel coming out of the cylinders. The last think you want to have happen is hydrolocking a cylinder. Changing the oil and filter after running the vehicle for a while would be a good idea also. Good luck with it. :)
Ugh! Haha... I was afraid of that whole remove the plugs scenario. And so it shall come to pass.Thanks so much for the help!
 
I'd consider a squirt of oil in each plug hole, prior. See, 100 yrs ago, I had a run-oil-dry cylinder on a MB 6.. not pretty; big ridge, but that was a longer run scene. Steam in a hole sucks on other than Stanley Steamers.

FWIW, I had my injectors checked, cleaned and flow tested by a great local shop. Price was near new cost, but I know exactly what I have. This, as all were okay electrically. New parts being as they are today....
 
Just to be safe I would pull the plugs, disable the ignition, and crank the vehicle over and check for any fuel coming out of the cylinders. The last thing you want to have happen is hydrolocking a cylinder. Changing the oil and filter after running the vehicle for a while would be a good idea also. Good luck with it. :)
Before cranking the motor over, should I remove or disable the injectors as well? I pulled the main wire from the opti to the coil and pulled the fuse to the fuel pump. All plugs are out now. Any other steps I should take or precautions at this point?
 
Before cranking the motor over, should I remove or disable the injectors as well? I pulled the main wire from the opti to the coil and pulled the fuse to the fuel pump. All plugs are out now. Any other steps I should take or precautions at this point?


You will be fine, you just don't want any spark when cranking over. By disabling the fuel pump you will have no fuel going to the injectors, and if you disabled the optispark system your ECM will not have a signal to pulse the injectors or fire the coil. Sounds like you are good to go.
 
You will be fine, you just don't want any spark when cranking over. By disabling the fuel pump you will have no fuel going to the injectors, and if you disabled the optispark system your ECM will not have a signal to pulse the injectors or fire the coil. Sounds like you are good to go.
Thanks! Off to the garage I go...
 

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