bearing mat'l in oil, can it live?
#22
I had much less than this in the oil and within 100 miles the engine was knocking badly. Anytime you see metal in the oil its a crap shoot at best. I wouldn't drive it hard and be sure if it starts knocking or making noise stop running it.
#25
Early production run of short travel solid roller bearing lifters from Johnson. New lifters are the same, but with needle bearing rollers..got about 1200 miles on them and they have been great...Johnson stood by the product and have kept me in the loop...the best you can hope for imo.
This motor has 1200 miles on it since the failure including 2 days of dyno pulls, so im not being easy on it at all. Just changing the oil very often.
Heres a link to the 7k dyno pulls:
https://ls1tech.com/forums/showthrea...529&styleid=25
This motor has 1200 miles on it since the failure including 2 days of dyno pulls, so im not being easy on it at all. Just changing the oil very often.
Heres a link to the 7k dyno pulls:
https://ls1tech.com/forums/showthrea...529&styleid=25
#29
I've got another 550 miles on her. I'm about to go to the dyno (why will be in my build and dyno threads soon) but I went ahead and switched to VR1 racing oil (which is BLUE btw) that I got on clearance at the local advance. I know its only good for 500 miles, but why not? Cheaper than the T6 for these 6 quarts, which will be changed in 500 miles anyway.
The metal in the filter is now tiny dust that pretty much just stay in suspension, but there was a disturbing amount of it this time. The plug again had some chips on it. . .sorry for the mess in the pictures.
I have plans for running a UOA on it, which I have done periodically since I bought this car in '01, but with visible metal still in there I don't think it's time yet.
Lets hope it live through another tune. . .
The metal in the filter is now tiny dust that pretty much just stay in suspension, but there was a disturbing amount of it this time. The plug again had some chips on it. . .sorry for the mess in the pictures.
I have plans for running a UOA on it, which I have done periodically since I bought this car in '01, but with visible metal still in there I don't think it's time yet.
Lets hope it live through another tune. . .
#30
Alright, another ~350 miles including 20ish ~7krpm dyno pulls for the Meth tuning. As mentioned above, this time I'm using 10W-30 Valvoline VR1 Racing Oil (the blue stuff with no detergents). Less metal on the plug now, approaching normalish but still plenty of metal in the filter. This time I'm posting a video of me pouring out the filter after I've cut it open. Believe it or not this is substantially less metal than last time, but it still seems like way too much.
#35
Another 500ish more miles, so right around 2500 miles since the failure. Last night I threw P0335 and it started running like crap, valve train sounds terrible and the exhaust smells like raw gas. I went ahead and replaced the crankshaft position sensor (which was the code) but I need to find a place to do a CASE/crank position relearn for me. Hopefully that is the source of the valvetrain noise etc, because if it isn't it sounds like the motor may be done. Anyway, here's the plug and a video of me dumping the filter. . .So many oil changes later with still this much metal makes me think I need to stop thinking about a new block and actually start looking for one. I hope I'm wrong.
#38
TECH Apprentice
iTrader: (24)
what are you using to cut the filter? are you sure you aren't getting more metal in filter while cutting it? granted, i know there is some metal in the oil due to magnetic plug.
i have the same issue, i have some metal on my plug when i change the oil, and i just change it frequently. i can't see actual metal in my oil as you can in yours though, but i have never cut the filter (don't know what to use)
i have the same issue, i have some metal on my plug when i change the oil, and i just change it frequently. i can't see actual metal in my oil as you can in yours though, but i have never cut the filter (don't know what to use)
#39
TECH Fanatic
iTrader: (18)
Alright, another ~350 miles including 20ish ~7krpm dyno pulls for the Meth tuning. As mentioned above, this time I'm using 10W-30 Valvoline VR1 Racing Oil (the blue stuff with no detergents). Less metal on the plug now, approaching normalish but still plenty of metal in the filter. This time I'm posting a video of me pouring out the filter after I've cut it open. Believe it or not this is substantially less metal than last time, but it still seems like way too much.
#40
Chuck, I've begun planning a GTR build with something de-stroked, solid-roller, and dry sumped, probably built by Tony. But for this car I may just buy a Thompson short block and call it a day.
Hey Chuck, question for you: Is the crank reluctor magnetic? Would it pick up a bunch of the steel too? The reason I ask is because my crank sensor suddenly failed and I was thinking that could be a cause.
I'm still hoping the metal is the remnant of the bronze lifter roller that got chewed up in the failure. To cut the filter I used the Jegs tool: http://www.jegs.com/p/JEGS-Performan...53437/10002/-1
Good idea, I'll take a look. I still have the last several filters in a bucket. As I think you can see in the video the filter isn't packed with a bunch of flakes like you see sometimes.
Hey Chuck, question for you: Is the crank reluctor magnetic? Would it pick up a bunch of the steel too? The reason I ask is because my crank sensor suddenly failed and I was thinking that could be a cause.
what are you using to cut the filter? are you sure you aren't getting more metal in filter while cutting it? granted, i know there is some metal in the oil due to magnetic plug.
i have the same issue, i have some metal on my plug when i change the oil, and i just change it frequently. i can't see actual metal in my oil as you can in yours though, but i have never cut the filter (don't know what to use)
i have the same issue, i have some metal on my plug when i change the oil, and i just change it frequently. i can't see actual metal in my oil as you can in yours though, but i have never cut the filter (don't know what to use)
Good idea, I'll take a look. I still have the last several filters in a bucket. As I think you can see in the video the filter isn't packed with a bunch of flakes like you see sometimes.