How many of you replaced the oil pump when you rebuilt your motor?

[jibberjive]

And how many miles did you have on it?

[hercfe]

Regardless of mileage, the oil pump is one of those no brainers when doing a rebuild.

[Evilevo]

Replaced mine! But i had 160k on mine

[GURUMAN]

Dont take any chances on a 150$ part............ !

[blmlozz]

Dont take any chances on a 150$ part............ !

ditto.

[sparkyvw]

just because its new doesnt mean it wont fail in 10miles.

110k when i rebuilt the engine. I just inspected the oil pump. Was fine wasnt even worn.

[Cobrakiller08]

And how many miles did you have on it?

Jib Let Jarl look at it he will tell you what to do.. I let him hanlde mine and mine is doing great! Is he going to do your bottom half also?.. I would advise letting him handle it for you he is really good at what he does.. Hell i have seen him make over 1000 hourse power on a stock block sbc with stock rods and keithblack pistons with some edlebrock heads that he tricked out on meth with some juice on a budged build that guy is amazing when it come to these motors. and knowing what needs to be done. I totaly trust him i have done buiness with him for thr last 13 years and he has been sold as a rock.

[diabolical1]

just because its new doesnt mean it wont fail in 10miles.

though i see the logic behind automatically replacing it, i totally agree with you. that said, i am likely to replace mine even if it passes my inspection simply because i don't know the history of this motor and it had a relatively dramatic death in it's last life.

[blmlozz]

just because its new doesnt mean it wont fail in 10miles.

110k when i rebuilt the engine. I just inspected the oil pump. Was fine wasnt even worn.

you could say the same thing about a 110K oil pump if you're going to be pessimistic like that though

[*Blue-Angel*]

If you rebuild an engine your oil pump should be replaced and check your oil pick up lines.

[jibberjive]

I'm just curious which of you who built your engines actually replaced the oil pump because I don't recall ever seeing it mentioned. As for me, I'm debating it because the engine and oil pump only have 47k mi. I'll likely replace it anyhow.

[davenew]

And how many miles did you have on it?

39k miles. No, not replacing pump..

[blmlozz]

I'm just curious which of you who built your engines actually replaced the oil pump because I don't recall ever seeing it mentioned. As for me, I'm debating it because the engine and oil pump only have 47k mi. I'll likely replace it anyhow.

I wouldn't mention it either. If you're building a 3.0L stroker for GT28's it's kinda implied that you would replace stupid shit like that..

[hercfe]

I wouldn't mention it either. If you're building a 3.0L stroker for GT28's it's kinda implied that you would replace stupid shit like that..

99 builders/tuners out of 100 do oil pump with any build. its automatic.

[antoanS4]

I did mine when the motor was built with 102K miles

[NogaroAvant]

I am replacing mine with my 3L build as well. Seems like a smart thing to do while everything else is being replaced too

[Das General]

I intend to use my original with 85k on it. That is if I can find it.

[blmlozz]

I intend to use my original with 85k on it. That is if I can find it.

so you're saying you would loose your oil pump if it weren't attached to the engine?

[gearhead1186]

99 builders/tuners out of 100 do oil pump with any build. its automatic.

thats a hefty statement.

i have 50k on mine. in the middle of a build now. kept my pump. its not like its an old american v8 where clearances and machining was questionable compared to todays OEM parts.

[sparkyvw]

you could say the same thing about a 110K oil pump if you're going to be pessimistic like that though

i no that.Wasnt being 'pessimistic'. I was simply just saying that as some people think newer is always better. In some cases it just isnt.

[kiellish]

guess i should have done mine. 130k.

[hercfe]

thats a hefty statement.

i have 50k on mine. in the middle of a build now. kept my pump. its not like its an old american v8 where clearances and machining was questionable compared to todays OEM parts.

It's not the clearance or machining that's the problem with modern oil pumps. Its the material itself. Most oil pumps are going to fail inside 200000 miles on greater than stock hp levels. They are made to perfect exact standards and won't last long when they are pushed a bit.

[blmlozz]

It's not the clearance or machining that's the problem with modern oil pumps. Its the material itself. Most oil pumps are going to fail inside 200000 miles on greater than stock hp levels. They are made to perfect exact standards and won't last long when they are pushed a bit.

I was going to say, the strain caused by excessive heat cycles and abnormaly high revolutions puts extra strain on the material. Which is why you should replace.

[jibberjive]

So I should've made this a poll.

The question would be "Of those who've rebuilt their 2.7t, who replaced their oil pump and how many miles were on the engine?"

As for the people that I know that rebuilt their engines:

Replaced: Evilevo 160k, Guru, Antoans4 102k, NogaroAvant,

Didn't replace: Sparkyvw 110k, Davenew 39k, Deb Das General 85k, Gearhead1186 50k, kiellish 130k

I wouldn't mention it either. If you're building a 3.0L stroker for GT28's it's kinda implied that you would replace stupid shit like that..

Apparently not, judging from the responses here.

Also, with a big turbo build the oil pump shouldn't be strained more than normal except for if one increases their redline, right? This is assuming the rest of the setup is properly equiped to keep the oil/coolant temps in the same range (ie. upgraded oil cooler if needed, EFK, etc.)

Anywho, I decided that I'm going to replace mine because similarly to diabolical1 my engine died in the hands of the previous owner. If I were to have torn apart my own running low mileage engine, I probably wouldn't be replacing it however.

[blmlozz]

Also, with a big turbo build the oil pump shouldn't be strained more than normal except for if one increases their redline, right? This is assuming the rest of the setup is properly equiped to keep the oil/coolant temps in the same range (ie. upgraded oil cooler if needed, EFK, etc.)

the S4 is at best, a sporty sedan, not a full-race car. I'm sure when they were taking design into consideration to whether make the pump withstand redline type conditions for extended periods versus just re-use the old 30V A4 pump they decided to just reuse the old pump out of the family 4-door that's more focused on competeting with an accord than making sure it will last 150K+ and 2-3times it's intended HP range/heat cycles. Audi did a good job with the 30V V6, but it's not a miracle engine, $150 is a drop in the can for almost anything that goes into an S4, heck my VDO vent gauge cost that much. Will it work just fine if you don't replace it? Probaly, but when you dump $5-7K+ (for a regular stage 3, could double that for GT's or RS6's) skipping on $150 isn't a wise idea.

[Evilevo]

That sounds like a good idea Mike. The part is so cheap that isn't worth it to not replace it when looking at the cost of everything else. I wouldn't want to risk the over 20k I have in the car on a $150 part.

[jibberjive]

the S4 is at best, a sporty sedan, not a full-race car. I'm sure when they were taking design into consideration to whether make the pump withstand redline type conditions for extended periods versus just re-use the old 30V A4 pump they decided to just reuse the old pump out of the family 4-door that's more focused on competeting with an accord than making sure it will last 150K+ and 2-3times it's intended HP range/heat cycles. Audi did a good job with the 30V V6, but it's not a miracle engine, $150 is a drop in the can for almost anything that goes into an S4, heck my VDO vent gauge cost that much. Will it work just fine if you don't replace it? Probaly, but when you dump $5-7K+ (for a regular stage 3, could double that for GT's or RS6's) skipping on $150 isn't a wise idea.

I'm not sure where you're getting that higher hp will add more heat or strain the oil pump more (like I said, assuming you got an upgraded oil cooler if you need one.) If you keep the oil temps in at the same level, then the oil pump sees the same temp as unmodified, right? The only thing I can see straining it more than stock would be the higher revs from an increased redline.

As far as where it came from, doesn't really matter what the first intended application is if it doesn't fail in my application, right? That said, I bet this trend of maybe half of the people with big builds replaced their oil pumps, and I have yet to hear of a single failure. Sounds like a good enough track record for me...if I knew that my original oil pump was working. I don't, so I'm going to replace it. $180 isn't cheap when you spend that much on everything, $200+ for piston rings, $100 head reseal kit, $150 for main bearings, $150 for rod bearings, $125 for rear main seal, $125 for front main seal, $100 for valve stem seals, $400 for an EFK, $130 for aux water pump, $300 for a timing belt kit, $400 for a fuel pump etc etc etc...those couple of hundreds add up to thousands.

I am, however, replacing my oil pump though.

[gearhead1186]

I was going to say, the strain caused by excessive heat cycles and abnormaly high revolutions puts extra strain on the material. Which is why you should replace.

I have a custom 7.5 x 12.5 oil cooler than Im going to put somewhere behind the front bumper. Abnormally high revolutions?? Ehh, I can see if its a dedicated track car. Eh watever, to each his own.

[Das General]

so you're saying you would loose your oil pump if it weren't attached to the engine?

heheh, my motor was taken apart almost two years ago. It is coming back together now, but the oil pump was placed somewhere...