Did you pull the dipstick on "the oil leaker"?? You might be getting fuel in the oil and its blowing out.. That fix would be either a lift pump or front seals on the inj. pump.
as far as removing the inj pump on the other.. 2 diff methods.. BUT with either 1, your going to need a gear puller/steering wheel puller to get the drive gear off the inj. pump drive shaft.
1 is to time the engine.. Under the inj. pump is a plunger pin.. it will engage in a hole in the cam gear at TDC, #1cyl compression stroke.. Now, see the line on the mounting flange on the inj. pump, by the engine nameplate.. that's where the actual fine tune timing comes into play. It should be lined-up w/ the factory line..
Once you get the timing pin engaged in the hole.. there is a locked timing bolt on the side of the inj. pump.. loosen the bolt, slide the keeper down/up and tighten the bolt against the driveshaft of the pump..
Now go around to the front of the engine, remove the SCREW CAP w/ a BIG pair of channel locks.. under the cap is your drive gear and nut.. remove the nut and washer, install your puller and pop off the gear.. I like to put the nut back on, flush w/the end of the dr.sh so I don't mushroom the threads..
The gear/dr.sh. is a "tapered fit" and the dr.sh. is keyed..
Method 2>> forget about timing the engine.. the pump is keyed and will only go back 1 way..
PAY ATTENTION to the timing mark on the flange.. or make your own.. now go to the front and do as above.
There are SEVERAL tricks to timing the engine.. 1 is get the engine turning tool.. I got mine off amazon for about 40.00, it slides into a hole in the flywheel and all you have to do is use a rachet to turn the engine, while your pushing the pin..
2nd is.. ALOT of times, the dimple on the pin, that engages the hole, is sheared off... I ALWAYS remove the plastic pin to check for the dimple.. it will/should be held in place with a spring clip, just use a screwdriver to pop it out.. remove the pin w/some pliers.. check for the dimple.. REMOVE THE ORING.. lube the pin up and begin the timing procedure.. removing the oring will allow the pin to slide in its bore.
IF the dimple is still on the pin, GOOD.. IF NOT, you can use your finger or a mirror to look/feel the hole coming around.. if you want to get the broken plastic out of the hole, just heat up a small screwdriver w/ your lighter, press it into the plastic, wait for 10 seconds and pull it straight out..
Hope this helps.. TPG
Delmer. I WISH.. still waiting on the gears..