i'm plastigauging my mains and it calls for .024 as the minimum, and .030 for number 3. according to my helms manual. now i'm getting readings just a hair thinner although i'm using the exact color bearings that were installed in it. and the machine shop said it will take std. bearings. just need your input. thanks

 

Are you saying that your clearance is a hair thinner? as in you have less than .024" clearance? If you do plastiguage correctly it is fairly accurate, but not within a .001"

What are you reading? .020"? or thinner?

 

i'm not reading any less than .020mm. if i had to estimate on main 3 it's at like .023mm and the minimum is .030mm. and on all the others are also around .023mm maybe a little less. i just looked at the bearings by code on the block instead of the color on the bearing and it looks like somebody put all thicker bearings in.... probably why i'm getting noise from the bottom end. so now i get to reorder at least 3 new main bearings

 

the plastigauge only goes down to .025mm

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by danthemang3 &raquo;</TD></TR><TR><TD CLASS="quote">the plastigauge only goes down to .025mm</TD></TR></TABLE>

yea the plastigage is only for horseshoes and handgrenades closeness. Don't rely on it for a close tolerance engine like yours. The codes on the block and crank are what you want to use unless you've had machine work done the codes should be spot on

 

well my helms is for a 94 gsr. did honda change the code readings in 98. just because i'm getting colors all one thinner than what was in there from the code.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by danthemang3 &raquo;</TD></TR><TR><TD CLASS="quote">well my helms is for a 94 gsr. did honda change the code readings in 98. just because i'm getting colors all one thinner than what was in there from the code.</TD></TR></TABLE>

Different engine, different parts??

 

yea the plastigage is only for horseshoes and handgrenades closeness

but chad uses it so it must be good right???

 

What bearings are you using?... Dunno if you stated. Sounds like your bearings are too thick. A word from the wise, try to find bearings that land you in the middle of the clearances.

You could run a lil snug on the Rods and a bit loose on the mains, but you'll lose oil pressure. you could slightly shim the pump and port it... My next rebuild, I'm going to rework as many of the oil passages as possible.

One more thing, take the time to have a GOOD machinist MIC your Mains, Rods and crank. This will save you so much time when deciding which bearings select. If you need info on how to decipher the numbers once you have them and choose bearings, let me know. I stole a formula from the late, great Earl laskey.


Modified by Circuit Star-29 at 10:07 PM 8/11/2007

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18CXr &raquo;</TD></TR><TR><TD CLASS="quote">yea the plastigage is only for horseshoes and handgrenades closeness

but chad uses it so it must be good right???</TD></TR></TABLE>

Who's "Chad"? And why does he determine what's good or bad?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Super Chicken &raquo;</TD></TR><TR><TD CLASS="quote">

Who's "Chad"? And why does he determine what's good or bad?</TD></TR></TABLE>

username chad on here.. jack loves him.


Modified by Dave-ROR at 9:32 PM 8/12/2007

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dave-ROR &raquo;</TD></TR><TR><TD CLASS="quote">

username chad on his.. jack loves him. </TD></TR></TABLE>

BWAHAHHAHAAA!!!!!