Necessary to prime oil pump?

[Cutlass84]

Hey guys, another quick question..

I am about to begin reassembly on an '01 discovery after doing timing chain and timing cover gasket. Is it necessary to disassemble the oil pump and pack it with something like petroleum jelly? I have seen other gerator gear style pumps where this was necessary, wasn't sure about the rover v8.

Thanks guys!

[bartell]

Originally Posted by Cutlass84

Hey guys, another quick question..

I am about to begin reassembly on an '01 discovery after doing timing chain and timing cover gasket. Is it necessary to disassemble the oil pump and pack it with something like petroleum jelly? I have seen other gerator gear style pumps where this was necessary, wasn't sure about the rover v8.

Thanks guys!

It is necessary. Many professionals fashion a shaft with a female fitting to use with a high speed drill and turn the pump gear through the distributor shaft to oil the engine and prime the pump.. but most still use the petroleum jelly method.

Remove the oil pump cover (you will need a new gasket). Keep the jelly in the refrigerator overnight. That will give a few more seconds before it starts falling on your nose while you replace the cover and gasket while holding the two gears in place.

James (waiting for his stalker)

[Disco Mike]

Wouldn't hurt and also fill your new oil filter with oil to help the process.
Mike

[p76rangie]

Only ever had to pack the pump once and that was because it was basically stuffed.

It should not be required for what you have done and you run the risk of something going wrong when you do it.

If I have rebuilt a motor, or replaced cam/lifters, I will prime the motor. But priming the system can only be done by pumping the oil through. That is, I have a connection that fits down the distributor hole and onto the oil pump. I then run the drill for a few minutes to pump oil through the motor.

You have not really done that much more than an oil change. You should not have to prime the system. As with any oil change, it is good to 2/3rds fill the oil filter with oil when fitting.

[bartell]

Originally Posted by p76rangie

It should not be required for what you have done

http://i337.photobucket.com/albums/n...pumpmanual.jpg

P.S. Nonetheless, it good to see you are trying to help for a change. That is very healthy and it is what we are all here for. Help or be helped.

[p76rangie]

Originally Posted by bartell

http://i337.photobucket.com/albums/n...pumpmanual.jpg

P.S. Nonetheless, it good to see you are trying to help for a change. That is very healthy and it is what we are all here for. Help or be helped.

You idiot!
He has not overhauled the oil pump. What you posted relates to overhauling the pump where you would have cleaned all the parts and possibly introduced new parts. In that case you would pack it with petroleum jelly.

If you are going to open up the oil pump, make sure you mark the gears before they are removed. Make sure that they do not fall out, which can happen if you do it when the timing cover is back on the motor. The gears mess together over time and if you do not match them backup properly the pump will not work properly and you will end up having to buy new gears.

As stated previously, if it an't broke, don't fix it. I have had bad experiences opening up the oil pump in the past and recommend not touching it unless required.

[DailyDrivenTJ]

As Disco_Mike said, you can fill up the oil filter with oil. However, I am not so sure who would have a drill that can turn the crankshaft to prime the oil pump because the oil pump is driven directly by the crankshaft on D2s. You will need more than a drill, more like 3 feet long breaker bar.

I have rebuilt my oil pump on my D2 a few days ago with new gear set and it is back on the road.

As far as the gears go, there are only two distinct gears, the outer and the inner. It will be very hard to mix them up.

I initially packed with grease and the gear set was sticking/hard to rotate at a certain spots; obviously the tolerance on these gears is for liquid lubricant, after cleaning out the new assembly with liquid lube, it rotated freely.

HTH

[Cutlass84]

Thanks for the help guys!

This thing is finally on the way back together with all of your help.

I am fairly certain the h2o in the oil was a result of a bad timing cover gasket. I can't verify for sure till I fire it, but it is looking very promising. I have a sinking feeling after reading all these threads that a bad timing cover goes misdiagnosed as a "slipped liner" quite often.

[DailyDrivenTJ]

Originally Posted by Cutlass84

... I have a sinking feeling after reading all these threads that a bad timing cover goes misdiagnosed as a "slipped liner" quite often.

I bet they do and maybe even as blown head gasket...

[bartell]

Originally Posted by p76rangie

You idiot!
He has not overhauled the oil pump. .

Yes dear.

Got you. You believe that priming the oil pump has nothing to do with an oil pump losing its prime.

However, it is very good to see you are trying hard to help.

James

[p76rangie]

Originally Posted by bartell

You believe that priming the oil pump has nothing to do with an oil pump losing its prime.

You idiot.
You got me confused. You do not pack a oil pump on a 01 D2 motor with anything. The link you provided was to an old type pump. The D2 is driven off the crank.
But I was correct in stating that you need to mark the gears.
The priming of an D2 pump simply involves coating the components in engine oil. Assuming that he has not stripped it, the components should already be coated.

Therefore the answer to the original question about having to prime/pack the pump, the answer is NO.

[bartell]

Originally Posted by p76rangie

You idiot. You got me confused.

Yes dear. That happens a lot with you and we shall try harder (together) to avoid that.

James