ACL Race rod bearing - Clearance

[Ronaldxd]

Hi,

I am rebuild an Eclipse GST 95, with a new Eagle Forged Crankshaft (7 bolt) 88mm and the ACL Race tri metal rod bearing in STD size (4B1185H-STD)

The page: ACL Race Series - Mitsubishi 4G63, 4G63 Turbo, 4G64 Performance Engine Bearings

So the rod bearing clearance is not matching under the 0.0008-0.0020 (std limit).... I am getting 0.0023 in the ACL Race tri metal rod bearing!

This car is my daily driver and i think this clearance may not be a good ideia. The Acl race tri metal Main Bearing fitted in the clearence, can i use a STD King rod Bearing without problems or i can use the ACL race Rod Bearing?
Any suggestion?

 

[iceguru1114]

Looks like this is an old post, so apologies if this is a moot point. However, the information is good at any rate.

For hydrodynamic lubrication (like what you seen in crank and rod bearings), a good rule of thumb for radial clearance is between 0.008 - 0.020 mm (0.0003 - 0.0008 in) (Juvinal et. al). DISCLAIMER: These values make some assumptions about about machined surface finish, roundness, parallelism, and lubricant viscosity at target operating temperature. However, it's still a good general rule of thumb. If you see recommendations far outside these ranges, you ought to atleast ask the manufacturer why.

Hope this helps.

Juvinal, Robert C., and Kurt M. Marshek. Fundamentals of Machine Component Design. 4th ed. N.p.: Wiley, 2006. Print.