Well, I'm finally just pulling in from a simple 30 minute trip to get some true E85 (up north we still have some e70 floating around); that I started 6 hours ago.

I have a 2004 RS, with a LR 2.0. The car makes a hair under 700 on a MD.

So, back to the story. On the highway home after filling up with e85, I was playing with some bikes. After two 3-4 gear pulls, I could tell something wasn't right. The car seemed way more dead in 5th than it usually did. Looking over to my gauges, I could see my oil pressure was quite low, 15-20PSI low. So, I pulled over shut off the car, and had a buddy pick me up with a trailer. Mind you, no oil was being leaked. In fact, oil levels were spot on. No knock, no windows in the block.

I got the car back to my shop and began trouble shooting. I basically tore off the accessories and timing belt and discovered that my oil pump pulley is difficult to move. IE: Seized oil pump...

I'm having the filter cut open tomorrow and draining the oil into a clean pan to inspect for bearing bits...

Anyone else ever have a similar experience? What was your outcome?

Thanks!

 

Sorry to hear that man. Do you have the oil balance shaft delete installed?

 

Thanks for the condolences, and yes I do.

What I'm curious about is if the pump injected metal into my oil or if it's a contained failure. I'm not sure what exactly fails on these things...

 

The only pump failure I remember was when someone had the timing belt way to tight and the sprocket shaft started cutting through the front case taking out the seal.

 

It actually happens quite a bit. I usually see a couple cars a year do it. Sorry to hear man. Hopefully it didn't hurt anything else.




-Em

 

Yeah, so I've read. It's a bummer, but there's not much to complain about. The work both you and Buschur have done are impeccable, which makes this a simple job for me regardless.

 

happened to me, on emerys dyno. oil pump seized and the motor spun a bearing.

 

That sucks... Hopefully the damage was minimal. Best of luck sobo

 

Is this issue normally attributed with high hp cars or just random?

 

Usually the high revs(9.5k+) are what have been known to take out the oil pumps. The guys revving this high usually have high HP machines but HP wouldn't have anything to do with killing the pump.

 

Don't get too excited if you pull the filter and cut it apart and there's nothing in there.. I thought I got lucky with mine. After a couple pulls with the new oil pump on the car a tick developed and that's when all hell broke loose lol

 

I decided against cutting the filter. Instead I just started to pull the motor, il have a good idea once I start looking at some bearings.

I didn't hear any knocking so I'm assuming I haven't spun a bearing but I wouldn't be surprised if they took a Beating in the process.

Hopefully a polish ad new bearings will put me back in working order.

 

Is reasonable, just didnt know if the rpm rise rate (faster acceleration..) of the bigger power cars was causing more load on the pump.

 

let us know what you find out.

 

From some of the math that I have done due to oil pump failures:

Given, engine revolutions = 9500 rpm, = the drive Gear of the pump ( large) is spinning at 13300 rpm and the small driven gear of the oil pump is spinning at 20,000 Rpm with an overhang load on each of those gears being 30 ibs and 42 ibs respectively.

The above calculations do NOT account for timing belt slap, and whip effect of larger cam shafts.

I would dare to speculate that you could potentially have severe fretting on the furthest section of the crank with respect to the oil pump.

Sorry for your misfortune.