Used Oil Analysis - Post Them Here
08-02-2011, 07:15 AM
#453
So I'm thinking about why your BEARINGS are wearing, then, I scroll down some more, and see the excess fuel in the oil.
Another guy had a test a page or two back with even more: 4 %.
The chrome and lead has to be from the bearings, but the gears might give up some chrome.
Fix those fuel injectors, and be sure to premix.
In fact a couple tanks of Techron ( in the bottle and in the fuel at Texaco and Chevron) might clean up the injectors before you take out.
Also, Mobil 1 0w40 is the same weight as 10w30 at low temps, but is 40 weight at operating temps, and would be somewhat helpful with this dilution going on.
Another guy had a test a page or two back with even more: 4 %.
The chrome and lead has to be from the bearings, but the gears might give up some chrome.
Fix those fuel injectors, and be sure to premix.
In fact a couple tanks of Techron ( in the bottle and in the fuel at Texaco and Chevron) might clean up the injectors before you take out.
Also, Mobil 1 0w40 is the same weight as 10w30 at low temps, but is 40 weight at operating temps, and would be somewhat helpful with this dilution going on.
08-02-2011, 07:17 AM
#454
08-02-2011, 07:53 AM
#455
Motul 300v and redline are probably best oils you can buy. Both ester based and loaded with moly.
08-02-2011, 08:02 AM
#456
time to run some seafoam trough the OMP injectors and start premixing
08-02-2011, 12:18 PM
#458
weeeeeeeeee
iTrader: (12)
Interesting observations. My injectors were replaced with new OEM ones about 6,000 miles back due to clogging that was making me run super lean up top (FI). Since putting the new ones in my AFRs have been much better, I would say a bit richer than they should be actually under load.
AFRs under load tend to run in the low 11s high 10s.
I am very interested in the OMP / seal observation. I have noticed some sluggishness with warm starts and (even with a tweaked OMP flow map) I have noticed that my oil consumption rate is down. Is the seafoam procedure for the OMP lines the same one I read about all the time using the (I'm assuming) intake manifold nipples?
Thanks for all the feedback guys!
Shell
AFRs under load tend to run in the low 11s high 10s.
I am very interested in the OMP / seal observation. I have noticed some sluggishness with warm starts and (even with a tweaked OMP flow map) I have noticed that my oil consumption rate is down. Is the seafoam procedure for the OMP lines the same one I read about all the time using the (I'm assuming) intake manifold nipples?
Thanks for all the feedback guys!
Shell
08-02-2011, 03:24 PM
#459
use the OMP hose that connects to the throttle body boot. let it suck in about 1/3 of the seafom can with engine running. then turn off the engine while letting the omp hose suck in another 1/3 of the seafoam can via residual vacuum allowing seafoam to soak nozzles for next hour. reconnect the omp hose and start the car. run it hard to get max flow trough the OMP nozzles.
08-02-2011, 04:14 PM
#460
SARX Legend
Thread Starter
iTrader: (46)
It was proven that you can suck seafoam through the OMP hose but there is no proof it does anything to unstick clogged oil injectors. Most builders don't recommend cleaning them, they just get replaced if they fail the vacuum test. And if you remove all the stuff to test them you might as well replace them while you are in there. But it's can't hurt.
But if your OMP lines are clogged this procedure won't do anything to help that. If you value you motor and your oil consumption is down, I suggest just replacing the oil injectors and lines if they have a decent amount of mileage on them, it doesn't cost much.
But if your OMP lines are clogged this procedure won't do anything to help that. If you value you motor and your oil consumption is down, I suggest just replacing the oil injectors and lines if they have a decent amount of mileage on them, it doesn't cost much.
08-03-2011, 10:27 AM
#461
IMO that the chrome is more likely from the gears which need antiwear additives in most situations.
08-03-2011, 10:42 AM
#463
I only saw the 460ppm moly on the used oil, and thought: wow, looks like break-in oil, but it has 730ppm in virgin oil.
Won't the engine get conditioned, and not be able to obsorb any more moly after a few more changes?
08-05-2011, 09:51 AM
#466
weeeeeeeeee
iTrader: (12)
use the OMP hose that connects to the throttle body boot. let it suck in about 1/3 of the seafom can with engine running. then turn off the engine while letting the omp hose suck in another 1/3 of the seafoam can via residual vacuum allowing seafoam to soak nozzles for next hour. reconnect the omp hose and start the car. run it hard to get max flow trough the OMP nozzles.
Thanks for the pointer. I'll likely run my decarb (both omp and housing) following this procedure over the weekend.
08-22-2011, 04:57 PM
#469
08-22-2011, 05:03 PM
#470
1% evil, 99% hot gas.
iTrader: (21)
Blackstone repeatedly makes that mistake. Guess nobody has called them on it yet.
Chrome at 80,000+ miles may be coming from the eccentric shaft main bearings. At least that's what we've seen in other high-mileage engines. Do you track it or run it hard (like you should
)?
Chrome at 80,000+ miles may be coming from the eccentric shaft main bearings. At least that's what we've seen in other high-mileage engines. Do you track it or run it hard (like you should
)?
08-22-2011, 05:18 PM
#471
Blackstone repeatedly makes that mistake. Guess nobody has called them on it yet.
Chrome at 80,000+ miles may be coming from the eccentric shaft main bearings. At least that's what we've seen in other high-mileage engines. Do you track it or run it hard (like you should)?
Chrome at 80,000+ miles may be coming from the eccentric shaft main bearings. At least that's what we've seen in other high-mileage engines. Do you track it or run it hard (like you should
)?