Rod and main bearing clearance question
03-15-2004, 03:45 PM
#1
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Rod and main bearing clearance question
For those who set their bearing clearances, do you set them to the loose side of spec? (For a turboed engine.)
03-15-2004, 04:13 PM
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Re: Rod and main bearing clearance question (Chiovnidca)
i always try to be right on spec, loose if i have too. but never tight, i've seen alot of burned bearings.
03-15-2004, 05:10 PM
#3
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Re: Rod and main bearing clearance question (grndcont)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by grndcont »</TD></TR><TR><TD CLASS="quote">i always try to be right on spec, </TD></TR></TABLE>
Right in the middle of spec?
Right in the middle of spec?
03-16-2004, 10:19 AM
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ya, like not too far off from the proper size. i forget the window they give you, but i would not try to go a step above or below the proper size.
03-17-2004, 08:22 AM
#6
Re: (GITWIDIT)
Keeping the clearance loose will make for a more reliable turbo motor, but too loose and you'll find that you may need to step up to a thicker weight oil ( from 10/30 to something like a 20/50 ) This way the oil has more viscosity and can fill the void better and provide extra cushion for your engine components under boost.
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03-17-2004, 02:03 PM
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Re: (GITWIDIT)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GITWIDIT »</TD></TR><TR><TD CLASS="quote">run the cranks at spec and rods a little loose for boost apps 
</TD></TR></TABLE>
Ring gap and piston to wall clearances should also be a little looser for boost apps.
</TD></TR></TABLE>Ring gap and piston to wall clearances should also be a little looser for boost apps.
03-24-2004, 02:29 PM
#10
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Re: (USDM 4G VTEC)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by USDM 4G VTEC »</TD></TR><TR><TD CLASS="quote">i did my turbo motor builtup a lil loose....
factory wants 1.5
i set it on 2
</TD></TR></TABLE>
What did you set to this spec-
RODS OR MAINS?
factory wants 1.5
i set it on 2
</TD></TR></TABLE>
What did you set to this spec-
RODS OR MAINS?
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