Connecting Rod Balancing

See how connecting rods are balanced by John Edwards @ Costa Mesa R&D, www.engine-machining.com 949-631-6376

Category:

Autos & Vehicles

Tags:

• connecting
• rod
• rods
• con
• engine
• machining
• rebuilding
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[sdold]

Thanks for posting. Aren't rods shot peened to prevent fatigue failure? If so, Do you re-shot peen the areas after you remove the peening?

[fiatnutz]

@sdold - We shotpeen them after we are done with the mods.

[torchyboyz]

Dear John. Thanks for all of your vids, they are really informative. I am about to rebuild a Cummins 6bt diesel engine for a boat and want to lighten the rods. They are very rough cast and the casting flash is roughly ground off. Is there any value in grinding and sanding the rods all over to give them a smoother finish before balancing? Thanks john for your time and your expertise. Kind regards Paul (England)

[fiatnutz]

@torchyboyz - Paul, you can certainly polish the beams, but be sure to check the balance. If you had a lathe big enough, you could reduce the bottom-end weight and some at the top woth a milling machine - again - rebalance rods.

[burton402]

I really enjoy all of you videos. But i do have one question, I've heard of a shop making a stroker kit out of the original crank by moving the connecting rod pin position further out, but then they claimed that they had to shorten the rod by heating it up in a jig and compressing it. The reason for that is so it doesnt hit the head. I was wonding if you had any experience doing this and if so could you provide any input and maybe even a video of doing this. Thanks for your time

[fiatnutz]

@burton402 - I've never heard of compressing the rods in a special fixture or heating them to do so. Shorter rods are sometimg necessary to stroke and engine, but I prefer to use a small and lighter wrist pin and move it up in the piston. Does require special pistons, but if you are going to stroke and engine you will need different pistons anyway.

[JetMech72]

How do you remove material without introducing a stress-raiser in the component?

[TheClockworksblack]

Ramil - Balancing Act (check it out)

[wackedoutdude]

Awsome vids mate. I always wondered what went into this sort of mod. Great work.

[AlexH33]

@DoriFord im pretty sure that is the integral part of the strength of the conrod changing that would make your piston weaker

[DoriFord]

I've got a question! Is there a way to balance the rod between beams after it was lightened? Or beams balance isn't that crucial? Thanks in advance!

[DoriFord]

thank you for another great video! they are very helpful!

[SRT480]

is their a noticible difference in engine response from doing this?

[ghettobraden]

how often do you use check weights on your scale, you really should use them every time you use it. Especially if other people use your scale.