O.K. I see the block was bored .060 over and you have a new crankshaft.
The main bearing caps all have the arrows pointing toward the front which is
good. I'm sure you checked all the bearing to see that they matched the
main size of the crankshaft. I'm assuming you don't have any of the pistons
installed right now and your only turning the crankshaft in the block?
Was the block line bored? You could have a bent crankshaft! More than
likely I think you have an oil hole on the crankshaft journal that was not
deburred and is gouging a bearing or a bearing isn't seating properly in the
notches and is binding? You'll see the problem when you remove the caps and
look at the bearings.
I just love those 283!!! I had one that went through 3 vehicles and never
skipped a beat. I'm building me a .060 right now with some 194 fulie heads,
Roller Rockers, double roller timing chain, high volume oil pump, 480 Magnum
Comp Cam etc., to run me up and down the mountain on my hunting and camping
trips.
Joe
-----Original Message-----
From: Richard Kinas <rkinas@ctinet.net>
To: 'Old Trucks List' <oletrucks@autox.team.net>
Date: Tuesday, October 09, 2001 5:47 PM
Subject: [oletrucks] 283 rebuild sadness
>Ok all you motor heads......
>
>I just got my 59 283 back from the machine shop :) I had to bore 60
>thousandths over, the crank had spun a bearing and could not be reused, no
>problem new steel crank kit. Any way, upon initial assembly, crank bearing
>saddles were cleaned, bearings were wiped down, etc (i.e. all mating
>surfaces were perfectly clean) installed bearings in block once in, lube
>them up with new oil. Set the crank in place, all is fine. Installed the
>bearings in the caps lubed them with oil and set them in place. Lets see
>caps are facing front... in the proper order...OK ready to tighten.
>Initially tightened to finger tight on all caps. Quick check of crank,
spins
>freely. Tightened all caps to 30 ft-lbs. Crank still spins freely.
Tightened
>all caps to 60 ft-lbs. Crank still spins freely. I'm feeling pretty good at
>this point. I better spin the crank all the way around instead of just
>rocking it just to be sure. Yikes, the crank spins freely 3/4 of a turn
then
>binds for 1/4 and spins freely again:( This sounds like an out of round
>crank journal or saddle. Tomorrow I will plastigage the bearings dry on the
>top and bottom to tri and find the culprit. Does any body have any other
>ideas?
>
>Thanks for any tips.
>
>Rich Kinas
>59 Fleetside
>Orlando, FL
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