Ryan Underwood wrote:

> Well, for those of you who have kindly responded to my previous questions,
> this is becoming a bit of a saga. We obtained a new timing tensioner and
> mounting bolt, and the motor is put back together, so I decided to install
> the timing belt before doing the valve lash. Got the belt installed
> correctly and tensioned fine, so I went to tighten the tensioner bolt...
> whoops! Off comes the piece of the oil pump housing that the tensioner
> bolt threads into! At this point I'm realizing that the oil pump housing
> is just aluminum, and kicking myself for torching the tensioner bolt. I
> have a new oil pump ordered and it should be here Monday. It comes with a
> new crank seal installed.
>
> So, until Monday, I have the task of removing the crankshaft timing gear.
> The factory manual calls for a J 28509-A two-jaw puller. The teardown
> manual calls for two screwdrivers, as if the gear will just slide off.
>
> Here is a picture of the oil pump that the gear is outside of:
> http://i9.ebayimg.com/02/i/04/10/fa/57_1_b.JPG
>
> As you can see, the gear is surrounded at least halfway around by a lip
> that protects it from the road. This lip makes it impossible to get a
> generic 3-jaw puller around the gear. I have a 2-jaw puller, but the gear
> is too close to the oil pump cover to get the puller jaws behind the
> gear's flange.
>
> Not having the appropriate puller, I spent the evening with a screwdriver
> on either side of the gear, hammering on each alternately from the top.
> I may have succeeded in moving the gear about an 1/8 of an inch, but
> further effort seems futile.
>
> I'm worried about damaging the main bearing doing this. Should I keep
> trying this or not? What about heating the gear, will that hurt anything
> aside from the crank seal that is to be replaced anyway? Or should I just
> take tomorrow off and buy the puller from GM on Monday?
>
> Then, neither book gives any details about how to reinstall it once I've
> replaced the oil pump. Do I just grease it and beat it back on with a
> mallet?
BFH
Break the lip off the broken pump, install puller.
Sometime I have to put a c-clamp on the 2 jaw to hold it together.
Oil for assy. works fine.

wws