Timing/carb issues
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Timing/carb issues

  1. #1
    Idaho Jet Craig4937's Avatar
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    Default Timing/carb issues

    I have an Olds 455 that isn't running good so I rebuilt the carb,750 double pumper, and now it seems to run rough. I was going to set the timing, but my question is should I adjust the carb first or the timing? or do them at the same time?

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    Senior Member Rivieraracing's Avatar
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    Does the carb make the motor run better or worse after the rebuild? Did you change out the metering block gaskets with new? If so, make sure you replaced the gasket with the correct one for that block, otherwise you might have a hole or 2 blocked and that would make it run bad (had that happen before with me). Also, check the float level in the bowl to make sure it's not set too high, otherwise you will be dumping gas in the motor making it run bad!

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    Idaho Jet Craig4937's Avatar
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    Quote Originally Posted by Rivieraracing View Post
    Does the carb make the motor run better or worse after the rebuild? Did you change out the metering block gaskets with new? If so, make sure you replaced the gasket with the correct one for that block, otherwise you might have a hole or 2 blocked and that would make it run bad (had that happen before with me). Also, check the float level in the bowl to make sure it's not set too high, otherwise you will be dumping gas in the motor making it run bad!

    alittle worse and yes I changed the gaskets out. and yes I checked the float levels........

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    Senior Member 2002CP19's Avatar
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    Quote Originally Posted by Craig4937 View Post
    I have an Olds 455 that isn't running good so I rebuilt the carb,750 double pumper, and now it seems to run rough. I was going to set the timing, but my question is should I adjust the carb first or the timing? or do them at the same time?
    If you choose to do them at the same time, could you take video?
    Quote Originally Posted by schick View Post
    Hold it firmly on the ground, a few pelvic thrusts should do the trick. If not repeat till satisfied!

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    Senior Member 2002CP19's Avatar
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    Just messing with ya.

    How are the intake man gaskets?
    Quote Originally Posted by schick View Post
    Hold it firmly on the ground, a few pelvic thrusts should do the trick. If not repeat till satisfied!

  8. #6
    Idaho Jet Craig4937's Avatar
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    Quote Originally Posted by 2002CP19 View Post
    Just messing with ya.

    How are the intake man gaskets?

    I think they are good but I will get out the wd-40 and spray it down....

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