Backed off the passenger side one tooth and the timing was within 1-2° with eyeballing. Left driver side +1 and spent far, far too long trying to retard the passenger side to -1.
Bad news:
Anyone see an issue here?
Re: Uneven cam gear wear?
Posted: Wed Apr 07, 2021 10:47 pm
by Fox_
No, seriously, any ideas why the cam gear is rotating that out of true?
How big of an issue is it? Wonder if that's the answer to the mystery of increased wear on that side.
Re: Uneven cam gear wear?
Posted: Thu Apr 08, 2021 11:24 am
by Stepson
Cam gears are new. If they were used cam gears, I would say that the gear got bent during a previous removal. That leaves the cam snout being bent. That sucks.
Re: Uneven cam gear wear?
Posted: Thu Apr 08, 2021 1:22 pm
by MFranke
Cam snouts seem pretty sturdy.. .what causes them to bend? Should you check the sprocket mounting... play or wear on the camshaft bearing surface?
Re: Uneven cam gear wear?
Posted: Thu Apr 08, 2021 4:49 pm
by Stepson
What causes them to bend is using a gear puller on the cam and excessive force being used to get the cam gear off. This was done prior to the OP probably.
Re: Uneven cam gear wear?
Posted: Thu Apr 08, 2021 5:05 pm
by Fox_
Stepson wrote: ↑Thu Apr 08, 2021 4:49 pm
What causes them to bend is using a gear puller on the cam and excessive force being used to get the cam gear off. This was done prior to the OP probably.
That side the gear & hub came right off.
Other side cam hub wouldn't come off, just left it.
Re: Uneven cam gear wear?
Posted: Thu Apr 08, 2021 6:06 pm
by MFranke
We must be talking about the hub. If it were me, I would verify the runout on the gear sprocket and then the hub. The gear sprockets have a slight amount of play in their fitment to the shaft. I imagine a bent hub arm or fitment issue could cause a wobble.
I've found that the woodruff key can bind up the hub if the key is nicked or scored in any way. A file can help fix that. Otherwise, it seems gentle tapping, heat and penetrant usually free these up.