Crankshaft Bolt
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Crankshaft Bolt

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    Large Member Watch Me Squirt's Avatar
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    Default Crankshaft Bolt

    455 Olds motor. Need to replace the camshaft due to a sticking lifter which caused a lobe to go bad. What size is the head of the crank bolt holding on the harmonic balancer?
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    Any time Leaf comes up, my butthole gets sore

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    Quote Originally Posted by Watch Me Squirt View Post
    455 Olds motor. Need to replace the camshaft due to a sticking lifter which caused a lobe to go bad. What size is the head of the crank bolt holding on the harmonic balancer?
    LMAO...you are jerking our chain...rite!!!!

    FastRat

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    Quote Originally Posted by Watch Me Squirt View Post
    455 Olds motor. Need to replace the camshaft due to a sticking lifter which caused a lobe to go bad. What size is the head of the crank bolt holding on the harmonic balancer?
    Mine WAS 1/16 bigger than the biggest socket i had....knocked it loose with a hammer and chisel and ground it to fit the socket i had...And ya, i really did that, and no, you can't tell i did it.
    As for the size.....i guess it was easier to start a thread than it would be to find a measuring tape

    And you do have that special puller to get the balancer off, right?
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    Blown, OHBA Member Wild Hair's Avatar
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    I hope your going through the whole motor. A cam making metal is not good. I would do a complete tear down, inspect and CLEAN everything and then rebuild. Let a good machine shop inspect the block and crank. Also new bearings and rings. Know when it goes back in the boat it's right. It takes less time and money than doing it again. Just my 02

    Also a good time to go chevy You have all winter to switch.
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    well the block is GM any ways


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    Quote Originally Posted by Sold honda.bought hondo View Post
    Mine WAS 1/16 bigger than the biggest socket i had....knocked it loose with a hammer and chisel and ground it to fit the socket i had...And ya, i really did that, and no, you can't tell i did it.
    I just called Websters. Because you just totally re-defined the definition of "cheap, tight ass screw"



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    At Home headed to the shop in a bit and will double check and can't double check but I belive you'll find its 1 1/8 , re the failed cam/lifter like already suggested time to strip it down , this scenario is like the "Sneeze in the theater" in the movie Virus, once the metal part degrades to generate particulate everything oiled is contaminated/infected , Tom

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    gn7
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    Quote Originally Posted by jetboatperformance View Post
    once the metal part degrades to generate particulate everything oiled is contaminated/infected , Tom
    Really? I always looked at it as "make it as you go graphite"



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    Quote Originally Posted by gn7 View Post
    Really? I always looked at it as "make it as you go graphite"
    Ya Know it does kind of resemble that Isky assy lube

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    Quote Originally Posted by gn7 View Post
    I just called Websters. Because you just totally re-defined the definition of "cheap, tight ass screw"
    Aw come on, you have never heard of rotational mass reduction?

    And that stuff from the cam lobe....on an olds that is bearing lapping compound. That is how you get proper bearing clearances to make the really big hp numbers. You run straight 30wt walmart oil till the cam goes flat....that is how you tell when it right. Replace the cam, use 50wt val racing oil and 2 bottles of GM eos and it's good to go.

    Don't believe me...ask him how much better it runs after he replaces the cam
    "A liberal paradise would be a place where everybody has
    guaranteed employment, free comprehensive healthcare, free
    education, free food, free housing, free clothing, free
    utilities, and only law enforcement has guns. And believe it or
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    Sheriff Joe Arpaio
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    On my 425 it's 1 1/8.

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