How do I remove...

[Fierobsessed]

The timing gear on the crank? I can't get the little bugger to budge, and I cannot remove the crank unless the gear comes off! I don't want to destroy the chain or the gear.

[SappySE107]

Why can't you remove the crank with that gear on it? That gear has nothing to do with getting the crank out of the block.

[Fierobsessed]

On the 3.4 DOHC, you cannot remove the crank without removing the timing chain, and you cannot remove the chain without pulling the timing drive sprocket AND the driven sprocket on the dummy cam togather, since they are both slid onto there respective shafts several inches.

Pushrod engines are far easier... Remove the upper sprocket by unbolting it from the cam... Then take the sprocket and chain off. The crank can then come out.

My whole problem is, getting behind that sprocket to get it off. I'm mostly looking for tool reccomendations.

[farmerz24]

a three jaw gear puller may work, or if you want to go the destruction method spin it so the keyway on the gear is facing up than get out the dremel

i guess you could also cut the chain if you dont plan on re-using it.

also on the dohc isnt there a rear cover on the dummy cam at the back of the engine? if this can be taken off, then the dummy cam slid backwards and then the gear will come off the dummy cam.

[Fierobsessed]

Actually, that wasn't too bad an Idea...

I did get the gear off with a cheepo small Autozone 3 jaw... It just so happened to have REALLY shallow hooks, which just did the trick. However, I think I will have to replace the timing gear and chain set I wanted to use it, but I'm not confident that I hav'nt damaged it using the wheel puller on the chain... The real problem though, is what the bearing looked like when I pulled the dummy cam out... A bit worn, but I suppose the belt puts load on the bearing even when the oil has migrated away from the load, then you have to rotate the shaft to turn the oil pump to get the oil pressure needed to reinstate the hydrostatic bearing... Anyone else see a problem with that?

The shaft is still absolutly flawless though. No indication of ANY scoring.

[series8217]

You got lucky catching that before it got worse.

In my case a large amount of the babbit layer delaminated from the backing and went through all the other bearings in my engine. I had to replace both cam carriers, the main bearings, rod bearings, and have the cam journals and crankshaft polished. I had 2,000 miles on a new crank and bearings when this happened. I never thought to check the intermediate shaft bearings when doing the crank job beacuse I had never heard of it being a problem..