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how do i remove the cam sprocket on the crank - 3.1 MPFI


Guest TurboSedan

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Guest TurboSedan

well the upper one that bolts to the camshaft was easy enough to remove, however i cannot get the lower sprocket off (the one on the crankshaft). i tried using 2-jaw & a 3-jaw puller and no luck.

 

what's the right way to get this thing off?

 

heck i might just take it in....i'm sick of working on car(s) i want to drive them@!!@!!@!#%$!@#

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REMOVE OR DISCONNECT

 

Timing cover

Place # 1 piston at top dead center with the marks on the camshaft and crankshaft sprockets aligned (#4 firing position).

Camshaft sprocket and chain NOTE If the sprocket does not come off easily, a light blow on the lower edge of the sprocket (with a plastic mallet) should dislodge the sprocket.

Crankshaft sprocket

 

It should just be held on by the keyway on the crank, right? I sure wouldn't leave the factory one on there, I was taught to always replace the timing chain, and all the pumps (water/oil/fuel on older cars) whenever you build a new engine.

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use a two or three jawed puller and it should come off no problem

however if the gear isnt worn too much you can reuse it look for deep wear lines if you can catch your fingernail in them you might want to replace it...

otherwise just put the chain and cam gear in there!

I have talked to several of my fellow mechanics and we are pretty darn sure that they are non-interference engine, none of us have ever seen bent valves from a t chain failure (and for the record 3 of us have seen the cam gear rounded completely off and 4 have seen a single link break (one of em me...)

 

Git 'er dun! James

 

so does this mean that i won the bet in the other thread on this topic-the link breaking?!? LOL :mrgreen:

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Are you doing this with the engine in the car? If it's not chewed up, and the engine isn't staying in there long term, I guess you could take a chance. If you damage the crank or old sprocket trying to remove it and it STILL doesnt come out, there's no turning back.

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The crank gear is a bitch to get off. It's pressed on as hard or harder than the pulley. Here's a tool that will seperate it from the crank. Autozone loans this tool. Once you get it seperated you can pound or pull it off. It's the initial 1/8" thats the tightest.

 

Bearing seperator.

http://buy1.snapon.com/catalog/OBJECTS/21100/21009.JPG

 

I used a sharp chisel last time I did it to get it loose from the crank and then pounded it off with a brass drift. Check the crank for any bumps and file them off.

 

Good luck.

 

Jud

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Heat and a 3 jaw puller. Heat the piss out of the gear without getting direct heat on the crank-end shaft. Put tension on it and smack it with a peen hammer...should break loose... 8)

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