Jump to content
SAU Community

Recommended Posts

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.

  • Replies 42
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Posted Images

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 by Rolls

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...

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.

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

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 thumbsup.gif

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

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?

post-80095-0-79982300-1328605116_thumb.jpg

post-80095-0-25118000-1328605136_thumb.jpg

Good result :thumbsup:

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?

post-80095-0-79982300-1328605116_thumb.jpg

post-80095-0-25118000-1328605136_thumb.jpg

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 thanks.gif

Now to get the rest done and hit the dyno thumbsup.gif

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!

Just looked at your pics of filter paper mate and it looks like your fingers have more dirt than the filter :whistling: 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.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Seat of the pants assessment of the new intake: The car is way less "doughy" when hitting the loud pedal, especially off idle when stopped or in traffic, I did use a cheapo lazer thermal thingo to measure the temp around where the pod filter got its air, it was between 55 - 60°C, in saying this the car was shut off and not moving, so the OEM intake pipe was not supplying any fresh air to where the pod was when the car was at least moving A weird bonus was induction noise on the throttle in the cabin increased a bit,  I was worried that I was actually going to lose some of that induction noise I love so much, outside though, when I got the daughter to do a WOT drive by pass for me, the induction noise has increased alot when on the throttle, not quite ITB doort, but well up there I'm extremely happy with the results and have been exploring the country roads in the region  As for house mods: 1.New front fence is up and is awesome, it really upgraded how the joint looks from the street, and the added security is nice 2. Electricians have replace some interior lights, and with more lighting in the garage, a few new motion detecting lights out the front above the garage, front room, and at the front door, which I have already found heaps helpful coming and going, also now has fancy pants CCTV all round the house The only hold point for power though is the solar and batteries due to supply issues, although this will happen over the next few weeks 3. I have done a heap of landscaping out the front and I'm almost ready to do a new small retaining wall with some nice blocks to replace the brick and cemented in rocks around the raised garden beds cemented in river stone "was the fashion at the time" the house was built. I currently have a pallet of retaining wall blocks and 2 bulka bags of 20mm blue metal to replace the wood chip that is in the raised garden beds around the house 4. I now have 3 big raised garden beds for out the back to grow some vegetables, about 70cm high, 200cm long and 100cm wide 5. My 2 compost bins are already pretty full with brown, green and kitchen waste from the landscaping I'vedone so far, but they will probably take a few months to break down, so anything else that gets chopped, trimmed, and kitchen waste will just start filling the base of the raised garden beds to about 30cm before I start throwing 40cm of good compost, and stuff, for the vegetables to grow in, I'll need a few ton of compost and soil, but the local supplier can sent me bulka bags of the stuff Basically the logs, wood chips and a few strategically placed rocks for drainage, will give the beds some good organic materials down low to break down over time, and they will hold moisture during the warmer months to save the water in my big arse water tank if we don't get alot of rain So, all in all, the car and house mods are going well, and I'm really enjoying being retired, I sleep in too 0700 and slowly plod around inside until I feel like actually doing anything, and only work in the yard for as long as want, which has actually been alot over the last few weeks,  although when you look at it, it seems that not a huge amount of work has been done,  until I look at the before I started the work pics Happy days and good times indeed 
    • hahaha yeah. Plan is to get side skirts and probably just rear pods. But going to do them one-by-one. I've got a set that I really like from RHDJapen, but that one isn't shipped to AU. So need to find someone who can get it for me
    • Here's an idea, answer the questions I asked you as they are trying to work out WHY the LSD will be binding up in a straight line.
    • You haven't driven many modern cars then have you? Most of them have sfa steering feel with their stupid electric bullshit steering systems.
×
×
  • Create New...