what to check before replacing oil pump
 

just wondering what i should check before i go ahead and replace the oil pump on my z6

i know to make sure the screen is clean but what else should i check

also where can i get one for less than $100

Re: what to check before replacing oil pump
 

oil level :P
compression
pcv
oil pressure send unit, wiring, and cluster.
Why do you think it's bad. Oil pressure light, or gauge?

Re: what to check before replacing oil pump
 

clackity clack plus the light

Re: what to check before replacing oil pump
 

im going to check pressure with a mechanical test gauger before i replace the oil pump, obviously

Re: what to check before replacing oil pump
 

http://motors.search.ebay.com/search...rclo=&saprchi=

EGAY 99.95

Re: what to check before replacing oil pump
 

Your oil pressure is dependant on the restriction put on it. Your pump could be producing enough volume but if you have a spun bearing or your bearings are the wrong size you will have low oil pressure. How many miles is on the oil pump? Have you checked clearances of the pump?

Re: what to check before replacing oil pump
 

i havent done anything at all yet
plan is to test the pressure with a mechanical gauge sunday and go from there
how would i go about measuring the clearances of the oil pump

Re: what to check before replacing oil pump
 

Take a look in your manual. They have pictures and everything!

Re: what to check before replacing oil pump
 

What is the engine doing to thing you need a new oil pump. Are you burning oil? This could also indicate a spun rod bearing since an excesive amount of oil is going past the rod bearings and being flung up to the pistons past the oil rings and being burned.

Re: what to check before replacing oil pump
 

everytime i spin a bearing my oil light comes on at idle

Re: what to check before replacing oil pump
 

hmm

Re: what to check before replacing oil pump
 

so without a full teardown of the engine theres really no way to verify it is the pump?

Re: what to check before replacing oil pump
 

well if you already have a knock the motor is internally damaged so an new pump isnt goin to fix that.

Re: what to check before replacing oil pump
 

sadly, that is the truth...

Re: what to check before replacing oil pump
 

just pull the pan and crank girdle and check things out.

Re: what to check before replacing oil pump
 

you are an idiot, but I do agree that you probably need new bearings/crank not just a oil pump.

Re: what to check before replacing oil pump
 

wow, i cant belive i didnt catch that. what a dumbass. lol

Re: what to check before replacing oil pump
 

Is that directed at me?

Re: what to check before replacing oil pump
 

Yes, thats directed at you. Haiving a spun bearing may throw more oil on the cylinder walls but thats not going to make him burn more oil.

Re: what to check before replacing oil pump
 

When the #1 rod bearing spun in my Y8 it started to lose oil rapidly. When I tore it down all of the other bearings were fine and the #1 piston was crusted black while the others were fine. Any ideas.

Don't mean to thread Jack.

Re: what to check before replacing oil pump
 

i have gotten pieces of bearing in my cylinder head before so i guess its possible that some worked their way to the piston with the oil and then scratched your cylinder walls up pretty bad.

Re: what to check before replacing oil pump
 

i think its just the pump, no pictures of it but it is scored up pretty badly inside and the tolerances are so small that a feeler gauge twice the max fits

i do not have a knock the car was running for mere seconds before i shut it down

Re: what to check before replacing oil pump
 

im still a little confused at what your problem is. a little bit of history might help, like did you just do a rebuild, or did you just buy this engine. did you wake up one morning and the oil light wouldnt go out? im kinda lost

Re: what to check before replacing oil pump
 

recently bought the engine
started it one morning and the light didnt go out

it was the oil pump all is well now

Re: what to check before replacing oil pump
 

thats good, but seems wierd to me that the oil pump would be the problem

Re: what to check before replacing oil pump
 

if your oil pump goes out or isnt working efficently id look into getting a new motor, chances are its messed with something else.

Re: what to check before replacing oil pump
 

everythings good, the pump was worn out, the tolerances are very tight
motor is nice and quiet so im not worried
not my daily driver so if it goes it goes

Re: what to check before replacing oil pump
 

so by your accounts the factory piston squirters that honda uses to shoot oil into the bottems of pistons/cylinders will make it burn oil? ::)

Re: what to check before replacing oil pump
 

First of all those are pointed at the bottom of the pistons not the cylinder walls. Second, those don't flow enough volume to overload the oil rings on the pistons. The amount of oil being thrown into the cylinders at high rpm is far greater.

Read this http://www.performanceoiltechnology....onsumption.htm

Re: what to check before replacing oil pump
 

i read that and it makes sence, but i still dont see a lot of oil getting burned. but its like my bike. at high rpms it uses a little bit of oil. it only has 10k miles so im sure nothing is worn and there are no leaks at all. what you are saying is true, but i dont think its enough to be noticeable

Re: what to check before replacing oil pump
 

Right when the rod bearings are within spec then not enough oil gets thrown up to the cylinders. They are saying that when the rod bearings are way out of spec or spun, then a significantly more volume of oil is thrown to the cylinders, thus overloading the oil rings.

Re: what to check before replacing oil pump
 

i have spun lots of bearings, i mean lots. i have torn down every one of them and never found one piston darker than the rest. i have also put lots of miles on those engines with spun bearings. i aucctually just tore one down that had no bearing left, it was just the rod on the crank and still no oil burn. it may burn some when that happens, but not enough to be noticable

Re: what to check before replacing oil pump
 

:-X

Re: what to check before replacing oil pump
 

thats what i get for revving stock engines too high. im working on building one now

Re: what to check before replacing oil pump
 

same, madmax's theroy doesn't hold water with me.

Re: what to check before replacing oil pump
 

Max, sounds like you were detonating on #1. Detonation jackhammers the rod bearing, and breaks ringlands.