Reconditioned Rods - is this one ok?

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Reconditioned Rods - is this one ok?

Post  75truck on May 24th 2016, 12:59 am

Just got back a set of DOOE Rods from my machine shop for my 429 build.

Please look at the photos and tell me if this one rod is ok?

The main journal balance pad is completely ground off - obviously to balance it.

Do I need to get another rod?


DOOE Rod

https://2img.net/h/i1214.photobucket.com/albums/cc484/foto41/2.jpg
Normal looking rod

https://2img.net/h/i1214.photobucket.com/albums/cc484/foto41/3.jpg
Balance pad ground all way off.  Is it ok to run it this way?

Thanks
all

Bob
Tucson

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Fix photos?

Post  75truck on May 24th 2016, 1:20 am

Can our moderator fix the photo link?

Thanx
Bob

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Re: Reconditioned Rods - is this one ok?

Post  supervel45 on May 24th 2016, 3:52 am

Nice Bike Builds. I would weigh the big and small ends of your rods and see how that one compares. I think the big end will come up light but, until you check you can't be sure.

Edit: Check Your Total Weight and Compare.


Last edited by supervel45 on May 24th 2016, 4:04 am; edited 1 time in total

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Re: Reconditioned Rods - is this one ok?

Post  supervel45 on May 24th 2016, 3:57 am

I have used makeshift jigs and digital postal type scales to get an idea how close the rods are.

https://www.youtube.com/watch?v=QLpiF0E0EJU

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Re: Reconditioned Rods - is this one ok?

Post  maverick on May 24th 2016, 5:36 pm

I don't see how that one could balance with the others. It also looks weak to me. I know that's just an eyeball opinion, but I'd sleep better having spent a few bucks for a replacement.
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Re: Reconditioned Rods - is this one ok?

Post  supervel45 on May 24th 2016, 11:04 pm

maverick wrote:I don't see how that one could balance with the others. It also looks weak to me.  I know that's just an eyeball opinion, but I'd sleep better having spent a few bucks for a replacement.


^^^^^^ Same here, someone mixed the set or something else is off, as cheap and common as the DOOE and truck rods are I would swap it too.

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Update

Post  75truck on May 26th 2016, 11:42 am

Checked and compared 2 sets of piston/rod sets came out the same weight.

Will be getting another rod and getting it replaced. Above rod must be a fluke.

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R&R of ARP rod bolt?

Post  75truck on May 26th 2016, 11:49 am

So can the machine shop remove and use the same ARP bolt in the new rod?

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Re: Reconditioned Rods - is this one ok?

Post  DaveMcLain on May 26th 2016, 3:50 pm

Rods with smaller balance pads are generally though to be stronger than ones with large pads because for a given amount of rod end mass more of it is in the rod itself instead of the balance pad which contributes nothing to strength.

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