Problem while building my motor.. Crank issue
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From: East Bay, CA, USA
Re: (2000BoostedEX)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2000BoostedEX »</TD></TR><TR><TD CLASS="quote">anyone with input?
also crank has ccbc and block is cbcc and acl's are supposed to be all c's right??</TD></TR></TABLE>
You are doing this wrong. For the mains you take the combination of the letters from the block the numbers on the crank. There should be 5 letters on the block. The letters on the crank correspond to the rod journals hence only 4 letters.
also crank has ccbc and block is cbcc and acl's are supposed to be all c's right??</TD></TR></TABLE>
You are doing this wrong. For the mains you take the combination of the letters from the block the numbers on the crank. There should be 5 letters on the block. The letters on the crank correspond to the rod journals hence only 4 letters.
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From: Burkburnett, TX
Re: (champLSinteg)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by champLSinteg »</TD></TR><TR><TD CLASS="quote">
You are doing this wrong. For the mains you take the combination of the letters from the block the numbers on the crank. There should be 5 letters on the block. The letters on the crank correspond to the rod journals hence only 4 letters. </TD></TR></TABLE>
I corrected that in an earlier post. Its negligible since I am using a micrometer to measure everything.
You are doing this wrong. For the mains you take the combination of the letters from the block the numbers on the crank. There should be 5 letters on the block. The letters on the crank correspond to the rod journals hence only 4 letters. </TD></TR></TABLE>
I corrected that in an earlier post. Its negligible since I am using a micrometer to measure everything.
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From: Burkburnett, TX
Re: (2000BoostedEX)
Well after looking at it again today I am a retard and was using the wrong plastigauge but it didnt matter but at least I noticed that.. The crank is smaller by .005-.007 in the all of the journals so yep looks like it was turned a bit which blows.. Oh well I guess its time for another crank or will blacks fix this?
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From: Burkburnett, TX
Re: Problem while building my motor.. Crank issue (blackeg)
alright i went and got a new digital mic the other day so i could read it easier and i went ahead and did the equations for the proper bearing sizes and I would need a .0814 which is bigger than a blue (.0793) to get my .0017 clearance so what should I do now. Does this mean my crank was turned then? Thanks
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Re: (srmofo)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by srmofo »</TD></TR><TR><TD CLASS="quote">
figure out how much they have to remove to return it to a stock diameter.
Modified by srmofo at 11:26 PM 7/30/2008</TD></TR></TABLE>
that doesnt make sense- something becomes bigger and out of round, so you remove more material and that magically makes it stock diameter?
figure out how much they have to remove to return it to a stock diameter.
Modified by srmofo at 11:26 PM 7/30/2008</TD></TR></TABLE>
that doesnt make sense- something becomes bigger and out of round, so you remove more material and that magically makes it stock diameter?
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Re: (nytosc)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nytosc »</TD></TR><TR><TD CLASS="quote">
that doesnt make sense- something becomes bigger and out of round, so you remove more material and that magically makes it stock diameter? </TD></TR></TABLE>
They remove material from the main cap to block mating surfaces. Let say you have a good block with the main bore a perfect circle. Now you remove material from only the mating surfaces. Now when you go to put the main cap back on the bore will no longer be round instead its like more oval. From here they bore it back out to make up for what was removed on the mating surfaces to make it a perfect circle again.
that doesnt make sense- something becomes bigger and out of round, so you remove more material and that magically makes it stock diameter?
</TD></TR></TABLE>They remove material from the main cap to block mating surfaces. Let say you have a good block with the main bore a perfect circle. Now you remove material from only the mating surfaces. Now when you go to put the main cap back on the bore will no longer be round instead its like more oval. From here they bore it back out to make up for what was removed on the mating surfaces to make it a perfect circle again.
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From: Ohio
Re: (champLSinteg)
^^exactly 
at least someone gets it^^....
I have never really liked to use mics on clearences like that because it is hard to apply the same amount of pressure on the mic, its good for getting close but I ALWAYS like to double check with plastigauge. I had 1 journal like that on the bossted b18 Im running right now, I was using honda bearings and finally said [freak] it, and went and bought a set of ACL dropped it in and perfect clearence. I would try the platigauge one more time and if that doesn't come out right take it to a trustworthy machine shop to have everything checked...someone might have turned the crank below the acceptable stock specs
at least someone gets it^^....I have never really liked to use mics on clearences like that because it is hard to apply the same amount of pressure on the mic, its good for getting close but I ALWAYS like to double check with plastigauge. I had 1 journal like that on the bossted b18 Im running right now, I was using honda bearings and finally said [freak] it, and went and bought a set of ACL dropped it in and perfect clearence. I would try the platigauge one more time and if that doesn't come out right take it to a trustworthy machine shop to have everything checked...someone might have turned the crank below the acceptable stock specs
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Re: (champLSinteg)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by champLSinteg »</TD></TR><TR><TD CLASS="quote">
They remove material from the main cap to block mating surfaces. Let say you have a good block with the main bore a perfect circle. Now you remove material from only the mating surfaces. Now when you go to put the main cap back on the bore will no longer be round instead its like more oval. From here they bore it back out to make up for what was removed on the mating surfaces to make it a perfect circle again. </TD></TR></TABLE>
makes sense
They remove material from the main cap to block mating surfaces. Let say you have a good block with the main bore a perfect circle. Now you remove material from only the mating surfaces. Now when you go to put the main cap back on the bore will no longer be round instead its like more oval. From here they bore it back out to make up for what was removed on the mating surfaces to make it a perfect circle again. </TD></TR></TABLE>
makes sense
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