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#7 main journal size

Posted: September 2nd, 2016, 5:12 pm
by jasonb
Anyone know the reason the #7 main journal is supposed to be .0005-.002 smaller than the rest?

Re: #7 main journal size

Posted: September 3rd, 2016, 1:14 pm
by Russ Pottenger
When you're hanging a clutch or converter off the back of the crankshaft it's important to be on the upper end of the oil clearance tolerance

Re: #7 main journal size

Posted: September 3rd, 2016, 2:01 pm
by jasonb
Got it. So, at 2.4898 should I get it reworked?

Re: #7 main journal size

Posted: September 3rd, 2016, 6:23 pm
by Russ Pottenger
You should be good.
Just verify your putting a .010 under bearing in it and check the oil clearance. I'm guessing you should be around .0025

Re: #7 main journal size

Posted: September 4th, 2016, 6:14 pm
by jasonb
OK. Thanks again Russ.

BTW, if I didn't tell you already, these pistons and rods you sent me look great, very nice!