Harmonic Balancer Snapped

-Under the Oil Pump Cover…..

As I said, I’m no mechanic and am very unfamiliar with the woodruff key……..
so any geared-down guidance for a JV would be great. Ha!

 

need to make sure that key is good and tight...solid square in the slot

otherwise it'll just twist and destroy the new HB


cant tell from your pic.....but might be a little twisted

 

Gotcha, thanks! About to go dive back into that right now.

 

Didn’t mean to go silent for this long. Had a bunch of things unexpectedly come up this last month………….

Was just able to get the timing cover off……..I’m screwed, aren’t I?…………

 

Yep....I had similar 6 yrs ago

it was an easy fix......well except for the $5000 hole in my pocket it left...



If that key can lean....you will eventually spin the next HB...

on mine the A/C kicked on.....and put it over the edge



Its really import to seat the new HB carefully\\
with being such a tight fit....its a recipe for disaster

polish and lube the snout.....and file the edges of the new HB's keyway...
so it doesn't stick the landing

its moved so much on yours.....its busted that timing gear
its thinnest part is on that key slot

your picture is not very clear......need better one

 

Key has to fit snug.....

 

I figured………….was just hoping I was wrong…………Here’s some more pics of it.





Didn’t realize I took such poor pictures ha……….I’ll snap a better one when I get home.

 

The $5K question is......did that gear get broke from key kicked up and caught by the HB when it was mounted....

or did it break from key rocking


in earlier pic it looked twisted




IF you tap that key back in......does it fit snug/tight


Also you need to check the back of the timing cover and look for hairline cracks on the back side of the oil pump gear area..........a wobbling of HB is really bad inside that

 

This is where an overall truck evaluation is required. 2.4's are pretty rare to get used and having said that I bet 3 will pop up in google searches, anyway, if the truck is in good shape it might be worth the effort otherwise sell her and let someone else do the project. With the proper tools you could start this on a friday afternoon and be driving her sunday afternoon.

 

Down here in south we have tons of 2rz/3rz down here....

its just that most of you here slight 'eye the 2.4's rwd....like they are tweens or beyond spectrum kids.....

the 2.4's will be decent and usually just under 200K

where as all the 4x4's are extreme high miles...want way too much....and mostly wore out, in need of major funds



unfortunate truth is about half of those 2rz/3rz needs HG.....or at least on its way out

so running to another one may not be what you think

 

I pulled the woodruff key out…….obviously pretty thrashed……..damn it.

 

Also, back of TC.

 

Yes - purchase an SKP balancer from rockauto and be done with it- A word to the wise - If the woodruff key is slanted forward creating a ramp the balancer can slide on and Crack- make sure the woodruff key is parallel to the crankshaft - TOP DEAD CENTER is important so you can slide the balancer on with the slot at 12 o'clock- no guessing about alignment!! If it's a MT put in 5th gear then tighten the bolt!! Use breaker bar on the frame to loosen bolt!! I've done my timing set twice - chain doesn't get stretched the guides will wear out if u use OSK kit - use OEM parts it will last 200k miles instead of 80k - Even when you took it apart it should be at top dead center-These balancers aren't pressed on - they slide on - u can easily slide it over that key!!