Rod Balancing

[Cipotifoso]

As part of my machining process, I had my rods balanced. As shown by the picture, this was done by grinding off the outer surface of the small end and/or the outer ends of the large ends. For a stock street 2.7 will this be OK for longevity purposes?

Dave

[tom1394racing]

I believe this is standard practice for rod balancing and should not be a problem as long as it was done by a competent machinist.

[304065]

Looks fine to me

Bored? You'll think about stroking when you see these rods.

[Cipotifoso]

Tom, John, thanks for the feedback. They were done by a competent machine shop (Ollie's) and each of them weighs out at 23.8 oz on my wife's postal scale (~675 g) with stock bolts/nuts and no big end bearing, however; I don't have the means to weigh them to within 0.1 g for orientation on the crankshaft(!).
The big ends were torqued with the old bolts/nuts and re-sized. I didn't get the torque or bolt stretch, but since I'm using new stock bolts, it shouldn't matter. I had to improvise to get the old bolts loosened using my wife's car as a vise (please don't laugh - it worked).

Dave

[nocarrier]

Please dont take this the wrong way. But you spent alll that money on your connecting rods to Run them over with the car?

If you search online you can find a rod vise for around $100.00 dollars or so.

[Cipotifoso]

Nocarrier - I didn't run them over. I merely lowered the tire onto the rod with just barely enough weight to hold it. Probably less force than a vise as the rod still rotated slightly under wrench torque.

[tadd]

Nice solution!

Given they are rod bolts, and critical, it might be worth the $130 bucks to get a stretch gauge...

Edit: whoops, being dumb. Saw you were removing :-).


t

[cgarr]

Hey we all use not the exact proper equipment from time to time: sometimes what ever works:

[76911]

Did your boss see what you do with the Hi-Lo?

[KTL]

"you spent alll that money on your connecting rods to Run them over with the car?" Well put!


I've seen that forklift is a great body straightening "bench" too........

My trick for non damaging vice use is to use a pair of small 1/2 in. thick plywood squares in the vise jaws. Works kind of like rubber in that the wood compresses around the part and grabs it tightly. Works better on non-smooth/flat things. Flat things tend to slip out in high torque situations.

[cgarr]

Originally Posted by KTL

I've seen that forklift is a great body straightening "bench" too........

Indeed, who needs a Celette when you have a Crown!

[TimT]

Indeed, who needs a Celette when you have a Crown!

LOL this car was balled up at Watkins Glen, and was third in class in Le Mans in 2003...

we used creative lift anchoring and stretching etc. To pull the tub straight..restored it to factory specs