M.BOZZ

iTrader: (14)

I just installed my callies crank and compstar rods and noticed that the #1 and #2 and #7 and #8 rods move almost to none side to side ( just by feel ) compared to #3,4,5 and 6 which moves quite a bit more. nothing has been torqued down and rods move freely on the pins. Is this a common problem ?

M.BOZZ

iTrader: (14)

Anyone have any thoughts on this ?

VandykeT/A

Mine were all around .0016 side to side. Tsp forged 408 rotating assembly.

KCS

iTrader: (20)

Make sure the rods are racing the right way. There should be a bevel around the bearing bore which should face away from the other rod and toward the crank cheek.

Old Geezer

iTrader: (3)

U mean .016??

M.BOZZ

iTrader: (14)

Yes I do, both sides are beveled , a large and small size and I have the large bevel side facing the crank. Like I said, its only on the ends of the crank

A.R. Shale Targa

iTrader: (2)

Bearing shells all the same (narrow) or chamfered uppers/lowers mixed up

M.BOZZ

iTrader: (14)

bearings don't come cloes enough to the edges. Ive had #1 piston in before, playing with cam timing ( trying to teach this old dog new tricks ) and had no movement problems as far as movement on the crank. It does have very little movement just nothing like #3,4,5, and 6

KCS

iTrader: (20)

What crank? Stock?

M.BOZZ

iTrader: (14)

callies 4inch stroke ( 408 ) and compstar rods

KCS

iTrader: (20)

And you're sure the upper and lower bearing shells aren't mixed? The sides will hang up on the radius of the crank journal if they're mixed up.

M.BOZZ

iTrader: (14)

No, not 100% sure, i was taking my time and i had my coke bottle glasses on,lol i will go back and recheck.Just couldn't see any problem at the time

A.R. Shale Targa

iTrader: (2)

Guessing the Compstar being the budget Callie's probably has .125" radii and not the .140" of stronger higher dollar cranks. If bearing shells are correct then a simple vernier caliper inside cheek to cheek measurement of looser throws compared to tighter throws. Checking if the crank was inconsistently ground. Either a quality cheek re-dressing or rod big end thrust touch up on a belt sander....looking for between .006" and .015" side clearance with .020" being an absolute maximum.

M.BOZZ

iTrader: (14)

If the bearings check out correctly then yes, the belt sander comes out.

VandykeT/A

Yea .016. Tsp told me .016 to .020 was where they ended up usually.

M.BOZZ

iTrader: (14)

Thank you guys, I had the bearings mixed up, lower on upper and so on. side to side measures .017, thanks again

KCS

iTrader: (20)

Cool, glad you got it figured out. I know I can't say I haven't done that once or twice on accident.