How Much Rubbish Should Be In First Oil Filter?

[Rolls]

Oil analysis asap, don't run it until you get it back. Depending on results run it for another few hundred kms and oil analysis again.

If the trend looks bad pull the motor down, if it has improved significantly you might be fine. If the results you get back on the first test spell disaster pull it down now.

Remember if you pull it apart early the damage might be minimal, if you wait until you spin half your bearings and send metal through everything then you might be up for a lot more money.

[abr33]

Oh so it looks that bad?

[JustinP]

Did you thoroughly wash your block and crank before assembly?

[Rolls]

Oh so it looks that bad?

I honestly have no idea but better to be safe and sorry, oil analysis can tell you more than a visual inspection of bearings half the time.

Lets say for instance the bearings are completely wrong tolerances, the oil analysis will tell you that, if you continue to drive it it will chew everything the f**k out and could cause a catastrophic failure.

Edited February 1, 2012 by Rolls

[abr33]

Did you thoroughly wash your block and crank before assembly?

Crank was hot washed after being blueprinted, all the slugs were drilled and tapped so that was all spotless, i cleaned block thoroughly, keep in mind I did this in my workshop at home, so not a cleanroom. Head was totally disassembled and cleaned after being drilled out and drains ground, using petrol sprayer and compressed air.

Keep in mind I made my sump huge (7.5L not including cooler) and although I washed it well there may be shit from there but i doubt it, only thing i recon the shiny flakes may be the zinc coating off the hinges i used in the sump? not sure why it'd be coming off though...

[abr33]

I honestly have no idea but better to be safe and sorry, oil analysis can tell you more than a visual inspection of bearings half the time.

Lets say for instance the bearings are completely wrong tolerances, the oil analysis will tell you that, if you continue to drive it it will chew everything the f**k out and could cause a catastrophic failure.

Ok, ill be doing analysis, but the company that did my crank and block said the filter paper looked relatively normal, apart from the black carbon stuff, however there was not really any black stuff just a bit of silver and a few bigger flakes of whatever it is the second time.

Bearings were individually blue printed and thrust bearing clearanced etc, so I see no reason for it to be crank bearings breaking down here- not to say definately however.

The content in filter reduced by huge amounts the second time though.

I guess the good side is the filter is doing its job.

I remember my first build the oil came out like glitter the first time, but it turned out the bores were half a thou tight at bottom and crank not measured or anything. It was badly glittered though lol.

[Rolls]

Yeah the bearings was just an example, I doubt that is the case here, chances are it is fine but you've spent a lot of coin, $50 oil analysis is good insurance.

[abr33]

Yeah the bearings was just an example, I doubt that is the case here, chances are it is fine but you've spent a lot of coin, $50 oil analysis is good insurance.

Hell yeah, but im not sure its panic stations yet, considering the amount of shit in filter greatly reduced, i wont head to tuners again till i get oil sussed out, but i think ill keep running it in a such (10psi should be around 220-240kw going off dyno chart) which is actuator spring pressure and once iv done several hundred kms ill dump oil (redline 15w/50) and put new stuff in and recheck the next filter.. If the amount of rubbish was increasing however, id be packing it

[abr33]

Anyone else got opinions on the pics? oil test sample is leaving tomorrow

[JustinP]

Nope but good luck. Hopefully you will have been worrying about nothing and it will all be gone with the next oil change.

I'm going to rip my oil filter apart after the first oil change when I get my engine all put together and see what's in mine.

Anyone else got opinions on the pics? oil test sample is leaving tomorrow

[abr33]

Cheers mate, post up pics of yours when you do please :-) Im hoping for no really bad news anyway. I gotta drive it for 60kms tomorrow and needs to be freshly stopped when oil is drained for test

[abr33]

Here is the results, all fine except high levels of silicon. Which they said were most likely silicon sealant used in assembly or dust that went in when i built engine.

I have to do another 100kms on the oil and send another sample to see the trend. everything else he said was fine.

A big thumbs up to oilcheck in sydney. Sent friday, results tuesday morning. win.

So im pretty happy there's no bad metals running around in there. I guess the silver flakes were zinc off the hinges as i suspected. I will be able to sleep again.

Anyone have input?

[JustinP]

Good result

Here is the results, all fine except high levels of silicon. Which they said were most likely silicon sealant used in assembly or dust that went in when i built engine.

I have to do another 100kms on the oil and send another sample to see the trend. everything else he said was fine.

A big thumbs up to oilcheck in sydney. Sent friday, results tuesday morning. win.

So im pretty happy there's no bad metals running around in there. I guess the silver flakes were zinc off the hinges as i suspected. I will be able to sleep again.

Anyone have input?

[Bsa]

Good to hear mate you will remember this when you go to put a motor together again haha

[abr33]

Yep. I was quite relieved. hopefully silicon is stable next test. It can really be coming from anywhere else.. And the tests are really cheap. about 36 bucks a go. i was expecting a hundred to 150 bucks.

Thanks everyone for the help/input

Now to get the rest done and hit the dyno

[GTR_JOEY]

where did you get your sampling done, Westrack...hastings/deering?

how much it end up costing

i dont pay for ours so i never ask lol

[abr33]

The company Duncan suggested, oilcheck in sydney (and W.A.) was 36 bucks... really good they rang me straight away and explained it well.

[GTR_JOEY]

good stuff, 36 bucks isnt too bad either

you remembered to heat the oil to running temperature before sampling it?

Where did u take your sample from?

[Rolls]

That is awesome news mate!

Could have just saved yourself years of paranoia if you didn't get the test done. Just make sure you get the follow up done to get a trend and then sounds like you shouldn't have any issues!

[NoFigJamHere]

Just looked at your pics of filter paper mate and it looks like your fingers have more dirt than the filter for anyone who's interested when you first start a rebuit engine a few trouble signs are unusually high or low oil pressure and if you have higher than normal oil temp this is usually as sign of bearing trouble. Of course any weird noises means stop! But you did the right thing by getting oil analized. for what you had done ie: sump,head etc you often get those little bits in the filter you missed on the wash. Just look at any piston skirts (below the rings) and see the verticle lines and you'll see how much shit gets left behind after a rebuild.