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Old 04-10-2011, 09:19 AM   #13
na svt
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Join Date: Dec 2007
Location: beavercreek, oh
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Re: Oil Viscosity for DOHC Ford

Quote:
Originally Posted by nickmckinney View Post
The tolerances and clearances are no different than the pushrod motors they replaced.
Mod motor clearances are pretty tight compared to the Ford pushrod stuff. A couple of the "high RPM" guys say that oil viscosity play a large role in how the lash adjusters work at high RPMs.
These are pretty tight:
main bearing oil clearance 0.0001 - 0.0018
rod bearing oil clearance 0.0011 - 0.0027

Aren't the pushrod mains 2-3 thousandths?

Last edited by na svt; 03-08-2013 at 01:55 PM.
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