rod cap help

[kennydawgg]

ok so I put together the motor and it was turning over poorly so i isolated the problem to this rod cap. the bearing does not fit properly as it is a little big, I have some pictures but its probably hard to see. all the other bearings were the right size and I have had no problems turning the crank with this one rod out but when i reinstall it its real hard to turn and its like it gets stuck. Is it possible to file the bearing down a couple of thousanths to get the cap to seat properly?

[tim]

Did you keep the caps with the correct rods during the build? Is that cap backwards or something? It obviously isnt the one that was machined with that rod.

[kennydawgg]

the cap is the right way but the thing is I used a rod from my 4g64 and the cap came from the 63 I believe but I'm not sure, from what I was reading they use the same rods. the bearing that does not fit correctly is on the rod not the cap.

[tim]

the cap is the right way but the thing is I used a rod from my 4g64 and the cap came from the 63 I believe but I'm not sure, from what I was reading they use the same rods. the bearing that does not fit correctly is on the rod not the cap.

You need a rod and cap that were machined together. You cant switch caps around with out having them remachined.

[acidrumz]

looking at your picture, that rod and cap don't match..
i've ran into your exact problem before.

[kennydawgg]

yep i figured it out, I had 2 switched and one had a small gap in the bearings and one was too big, thanks for the help!

[Shane@DBPerformance]

You still can't mix and match rod caps between different rods or main caps or cam caps.

[kennydawgg]

thanks, they are not mixed they are on the original rods they came from I just mixed up two caps and had them on the opposite rods.