RTH -- Harmonic balancer wobble

[mtnphilosopher]

I think I know the answer, so this is more of a real time confirmation help, but just need to confirm before scrambling for other transportation, as this is my DD. The (****y, hasty) video doesn't really show things all that well, but the crank pulley/harmonic balancer gets to wobbling enough that I hear a clankity-clank, playing card in the spokes sound:

http://youtu.be/8mzjFKAUVrM

It's intermittent, and oddly (to me at least) only starts to really go after driving about ten minutes.

I did a really quick search and quickly read some threads, but just want to confirm before researching more, trying to source part(s), asking how many s, etc.

Thanks all,

Brad

 

[Spike Strip]

Most likely it's the HB getting ready to grenade. I've seen this a couple times now just before the HB gives way. Seems like the elastomeric core crumbles and allows the rivets to loosen and wallow out the holes eventually coming apart and causing all kinds of pain.

Replace or inspect it quickly, or you're possibly looking at very expensive fix.

 

[mtnphilosopher]

Thanks Spike -- that's exactly what I needed to know. I have borrower rig lined up for a week, so I'll start doing the due-diligence research on here, sourcing a used HB, and maybe actually contribute to mud with a write-up (assuming one doesn't yet exist -- still only have done the hasty search).

Again thanks,
Brad

 

[Spike Strip]

You might try PMing Georg (OrangeFJ45) ... He's stated he has some used ones, and at least you know you won't get junk.

A good alternative is the Aussie aftermarket ones on ebay, but they're spendy at around $400. New OE is like $600!

Oreilly has Chinese-made precision brand for under $300, but the quality is anyone's guess.

Good luck!

 

[mtnphilosopher]

Thanks man,

I'll be sending a pm to Georg as soon as I know all of what I need.

Glass half full view is that it was the first trip into the mountains for the rig, and the Dump Truck ran strong throughout -- over 5000 ft of climb and descent -- averaging 15+ mpg through the Sawtooth Range.

 

[chris777]

What did you end up doing for a harmonic balancer?

 

[mtnphilosopher]

Hey Chris,

I actually did another post, as my HB was in good shape, but the keyway on the crankshaft was trashed. I ended up JBwelding an new key on the sharft per Georg's recommendation. I'm keeping an eye out for a used 2f to swap out the crankshaft, but knock on wood, it seems to be running fine for now. Here's the other thread:
https://forum.ih8mud.com/60-series-wagons/748216-crank-woodruff-keyway-trashed-braze-not-braze.html