So i finished measuring my crank with a micrometer and then measuring the block and cap with the bearings inside and the measurements i came up with were (starting from oil pan and working to the flywheel) .0024, .0023, .0022, .0022., and .0018, so what do yall think, i think the .0024 is a little big and the .0018 is a little tight, but do yall think these clearances will be fine on a high hp, high boost setup? This is with "standard" size bearings in a b18c1.

 

service limit is .002

time for different bearings.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turbodohcsi &raquo;</TD></TR><TR><TD CLASS="quote">So i finished measuring my crank with a micrometer and then measuring the block and cap with the bearings inside and the measurements i came up with were (starting from oil pan and working to the flywheel) .0024, .0023, .0022, .0022., and .0018, so what do yall think, i think the .0024 is a little big and the .0018 is a little tight, but do yall think these clearances will be fine on a high hp, high boost setup? This is with "standard" size bearings in a b18c1.</TD></TR></TABLE>

Did you use a bore micrometer for the ID of the journals? Those will give you the most accurate readings. If not, you can always use plasti-gage which is going to give you a difference of about .0002"-.00045" compared to using a bore micrometer. Usually we will shoot for clearances of .0015"-.0020" depending on the set-up. .0024" is way to loose for my liking. Also, the standard ACL's are based on the OEM Green bearing.

 

i used a dial bore guage, and i was worried these were a little on the loose side, but being new bearings i didnt want to go spend even more money on bearings now. I guess if anyone can link me to the chart that tells you how thick honda bearings are that would be great. thanks in advanced.

 

https://honda-tech.com/zerothread?id=1232811

 

Those clearance are actually fine. Specially if you're going for the high 650+ whp. the .0018 is a little on the tight side. Try and see if you can match that with the rest of the clearance like .0022-.0023

 

are they the same as b series?

 

Yes, they're all the same except # 3 is usually a little looser..

I shoot for .0015 all the way accross with mixing bearing colors to get what I need..

stan

 

ALSO, make sure you do the clearance at room temperature...70 degree ish...