Driftieboy

Cheers just ordered a mishimoto one!

Update, new motor is in and absolutely no sign of the old metal filings, have checked a few times now..

Ok awesome thanks everyone! Good to have some reassurance!! No oil thermo...

Hi Guys, i have a freshly built rb25/30det s2 head runs mint makes a nice 410kw on e50 but my oil pressure seems very high, it has a brandnew NITTO oil pump with gtr pickup... Oil pressure on start up is 100psi, even when both oil and coolant temp are at running temp and after a 2km drive up my hill/mountain which i live at the bottom of and about another 1km along the flat it stays at around 100psi untill probably about that 3km of gentle driving it drops down to a cruising pressure of about 60psi and plays ball and flucuates from approx. 25psi-80psi depending on revs like you'd expect. Ive got oil cooler with filter relocation and two seperate oil pressure sensor, one going to a gauge and the other is a brandnew bosch combined oil temp/pressure sensor going to my link ecu which shows on my powertune dash and both gauge and dash are showing the same oil pressure readings. To me the 100psi seems high? Also to add im using 15w-60 HPR15 Penrite full synthetic oil.. Cheers!!

I also ran about 1L through the oil feed on my HRC35/2 turbo while spining the turbine wheel, hopefully that done the trick for the turbo

Thanks, yeh inside of hoses seem nice and smooth, i ended up fulling up a water bottle with diesel and squirting it as down each line with some force into a bucket, used a good 5L, i attached some photos of the end result and no that's not stars in the night sky! 😅 Anyone want to buy some diesel? Going cheap 🤣

Righto, got the freshly rebuilt motor back, now how do i clean all the metal filing out of my expensive oil lines!?! Also can the oil cooler be cleaned out?

Unfortunately no... i was slack and because of family life it took me 2 years to put the motor back in and all finished up ready for it's first start... turns out my "6months" was abit off 😅 time flies when you have young kids!

Update, the shop that done the rebuild f**ked up big time, machine work on the vavle seats was done wrong and the bearings were also installed wrong so my freshly rebuilt motor in now getting another rebuid 🥴

Bugger... anything i could try before pulling head off?

So here's a photo of the work done to the head, i was hopeing for stuck exhaust valves but since they were all done it's got me baffled...

Thanks for that picture, yes all i checked timing correctly as per picture with the harmonic balancer removed aswell to be sure. Have just done the leakdown test (had to rush back to work) i mananged to quickly test cyl 1&3 each at TDC and the air was rushing out of the exhaust side and out the exhaust, couldn't hear anything from intake but next time i test I'll remove the intercooler to listen properly

Ok cheers thanks for the clarification!

I mean when checking the timing i noticed that when i put the crank on it's timing mark, both camshafts timing marks were on the opposite sides of what they should have been so then i spun the crank a full 360° untill the crank was back on it's mark again and now both of the camshafts were on there correct mark, so when assembling the eninge how do you know when your not 180° out? They guy i brough the motor from done the timing so i wonder if he has got it wrong?

Is it possible the camshafts are 180° out with the crank? Timing marks all line up correctly but as the crank rotates double the amount as the cams then could they be 180° out? I've just purchased a leak down test kit so will wait for that to arrive then do that.