BC Bearing clearence
IDBT housing bore inside diameter
ODC outside diameter of crank journal
BT Bearing thickness

BC=IDBT-ODC-(2xBT)

Crank Main Journals
1- 2.1650
2- 2.1648
3- 2.1646
4- 2.1646
5- 2.1650
Crank Rod Journals
1- 1.7713
2- 1.7708
3- 1.7709
4- 1.7709

Rod Bore
1- 1.8910
2- 1.8920
3- 1.8910
4- 1.8910
Main bore
1- 2.3240
2- 2.3250
3- 2.3240
4- 2.3240
5- 2.3240

Can someone do that formula for me, those are my specs and i dont get how to use the formula. If someone can do it, it would be greatly appreciated.Let me know what colors i need, Thanks



Modified by b20vtechatch at 10:15 PM 3/18/2006

 

bump

 

decide what bearing clearnace you want.

input the values you have.
solve for the bearing thickness.

then have fun findung bearings that thick.

 

anyone else?

 

you might need these;

---Main Bearing thickness by color

Blue 2.013-2.010 mm 0.0793”- 0.0791”
Black 2.010-2.007 mm 0.0791”- 0.0790”
Brown 2.007-2.004 mm 0.0790”- 0.0789”
Green 2.004-2.001 mm 0.0789”- 0.0788”
Yellow 2.001-1.998 mm 0.0788”- 0.0787”
Pink 1.998-1.995 mm 0.0787”- 0.0785”
Red 1.995-1.992 mm 0.0785”- 0.0783”


---Rod bearing thickness by color

Blue 1.510-1.507 mm 0.0594”- 0.0593”
Black 1.507-1.504 mm 0.0593”- 0.0592”
Brown 1.504-1.501 mm 0.0592”- 0.0591”
Green 1.501-1.498 mm 0.0591”- 0.0590”
Yellow 1.498-1.495 mm 0.0590”- 0.0589”
Pink 1.495-1.492 mm 0.0589”- 0.0587”
Red 1.492-1.489 mm 0.0587”- 0.0586”

 

i have those, but how do i get those numbers?

 

bump should i want .0017 oil clearence for a turbo application

 

how the expletive do i do this

 

Don't bank your motor on my math skills but from my perspective this is how I would decide on the size of the #1 main. I tried using different BT values until I tried the Pink size (0.0787”- 0.0785”) which looks like it has the potential to put you at the .0017 clearance you said you were wanting. You would have to check the actual clearance with plastiguage before final install. Also can someone else look this over and judge whether or not I did this right ?? I want to point out I am new to this also.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b20vtechatch &raquo;</TD></TR><TR><TD CLASS="quote">BC Bearing clearence
IDBT housing bore inside diameter
ODC outside diameter of crank journal
BT Bearing thickness

BC=<FONT COLOR="red">IDBT</FONT>-<FONT COLOR="blue">ODC</FONT>-(2x<FONT COLOR="green">BT</FONT>)

Crank Main Journals
<FONT COLOR="blue">1- 2.1650</FONT>
2- 2.1648
3- 2.1646
4- 2.1646
5- 2.1650
Crank Rod Journals
1- 1.7713
2- 1.7708
3- 1.7709
4- 1.7709

Rod Bore
1- 1.8910
2- 1.8920
3- 1.8910
4- 1.8910
Main bore
<FONT COLOR="red">1- 2.3240</FONT>
2- 2.3250
3- 2.3240
4- 2.3240
5- 2.3240

Can someone do that formula for me, those are my specs and i dont get how to use the formula. If someone can do it, it would be greatly appreciated.Let me know what colors i need, Thanks

Modified by b20vtechatch at 10:15 PM 3/18/2006</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mmuller &raquo;</TD></TR><TR><TD CLASS="quote">you might need these;

---Main Bearing thickness by color

<FONT COLOR="green">Blue 2.013-2.010 mm 0.0793”- 0.0791”
Black 2.010-2.007 mm 0.0791”- 0.0790”
Brown 2.007-2.004 mm 0.0790”- 0.0789”
Green 2.004-2.001 mm 0.0789”- 0.0788”
Yellow 2.001-1.998 mm 0.0788”- 0.0787”
Pink 1.998-1.995 mm 0.0787”- 0.0785”
Red 1.995-1.992 mm 0.0785”- 0.0783”</FONT>


---Rod bearing thickness by color

Blue 1.510-1.507 mm 0.0594”- 0.0593”
Black 1.507-1.504 mm 0.0593”- 0.0592”
Brown 1.504-1.501 mm 0.0592”- 0.0591”
Green 1.501-1.498 mm 0.0591”- 0.0590”
Yellow 1.498-1.495 mm 0.0590”- 0.0589”
Pink 1.495-1.492 mm 0.0589”- 0.0587”
Red 1.492-1.489 mm 0.0587”- 0.0586” </TD></TR></TABLE>

BC=<FONT COLOR="red">2.3240</FONT>-<FONT COLOR="blue">2.1650</FONT>-(2x<FONT COLOR="green">.0787&lt;-&gt;.0785</FONT>)

BC=<FONT COLOR="red">2.3240</FONT>-<FONT COLOR="blue">2.1650</FONT>-(0.1574&lt;-&gt;0.1576)

BC=<FONT COLOR="red">2.3240</FONT>-<FONT COLOR="blue">2.1650</FONT>-0.1574&lt;-&gt;0.1576

BC=0.0016-.0026