Replace those stock lifters!
That lifter in the picture is defective. The roll pin is coming out and its not suppose to do that. No oil in the world can prevent defective parts from failing.
There are tons of people out there (including me) that have put thousands of miles on roller lifters without a failure using everyday oil without Zinc additives.
You would see millions of failures if it was no kidding the cause. 1 in a million is not a smoking gun.
That lifter in the picture is defective. The roll pin is coming out and its not suppose to do that. No oil in the world can prevent defective parts from failing.
There are tons of people out there (including me) that have put thousands of miles on roller lifters without a failure using everyday oil without Zinc additives.
You would see millions of failures if it was no kidding the cause. 1 in a million is not a smoking gun.
http://store.forcedperformance.net/m...otor%20Oil.pdf
http://www.enginebuildermag.com/Arti...continues.aspx
http://www.drivenracingoil.com/dro/street-oils
http://www.drivenracingoil.com/dro/street-oils
Here is what a reputable sponsor had to say on the subject:
Lately, Ive been seeing a LOT of failed turbos, and failed camshaft/lifters.
Ive been in the LSx game for over a decade, and rarely do I see failures. We are a mailorder based company with 3 full time techs doing installs and R&D.
Over the last 10 years, We have recorded approximately 10 failed lifters from customers in the US with our cam kits. We sell on average 150-200 cam kits per year, and more cams by themselves. 6 of these have been in the last 12 months.
We have also seen a lot of turbo thrust bearing failures. This is VERY abnormal.
Have you heard about the LS7 exhaust valve dropping syndrome? It just started rearing its ugly head too... Its guide wear... Why? Because the oil cannot protect properly!
Its the oil people. Run a quality oil with proper additives. Redline, Joe Gibbs, Brad Penn, etc OUR ENGINES NEED THE ADDITIVES THAT THE EPA HAS MADE STREET OIL BLENDS REMOVE.
believe what you want. I choose to believe the professionals.
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As far as your claim...you can't prove it, but it is a good assumption. Failures of roller lifters are just not that common to say "run oil without a zinc additive and it will fail". Thats all I'm saying. People reporting a lifter failure is pretty rare...Out of the thousands of members here, I would be willing to bet you couldnt even show 10% of the members having a lifter issue by running regular Mobil 1 or comparative oil.
Over the last 10 years, We have recorded approximately 10 failed lifters from customers in the US with our cam kits. We sell on average 150-200 cam kits per year, and more cams by themselves. 6 of these have been in the last 12 months."
This doesnt support your claim...
Did the oil change 12 months ago?
Over the last 10 years, We have recorded approximately 10 failed lifters from customers in the US with our cam kits. We sell on average 150-200 cam kits per year, and more cams by themselves. 6 of these have been in the last 12 months."
This doesnt support your claim...
Did the oil change 12 months ago?
It never ceases to amaze me when a $12 part is expected to hold up in an $8k+ engine...theyre stock mass produced high tolerance parts guys...you could oil them with megan fox's lap drippings mixed with chuck norris' tears and it wouldnt help.
Over the last 10 years, We have recorded approximately 10 failed lifters from customers in the US with our cam kits. We sell on average 150-200 cam kits per year, and more cams by themselves. 6 of these have been in the last 12 months."
This doesnt support your claim...
Did the oil change 12 months ago?
Not just the Zinc content but other additives as well.
Go on the Subaru forums and ask about Mobil 1 5w30 in their motors.
I think better oil and additives help with lubrication, but they don't prevent parts from failure due to exceeding their designed purpose.
Of course....PARTS DO FAIL, just because. Every part off the assembly line is not 100% perfect.
Last edited by badazz81z28; Jan 25, 2013 at 10:54 AM.
I damaged an SLP camshaft (234/228) with the supplied single springs in 30,000 km's using the recommended 10W-30 Mobile 1 oil. Used 15W50 Mobile 1 for the next 50,000 km's without a problem on the new comp cam & dual springs.
I know of some low mileage stock GM's that had camshafts & lifters replaced under warranty.
Russ Kemp
Knock on wood I haven't had any trouble with my flat tappet stuff but it all gets Rotella 15/40 that I bought 5-6 years ago when they started messing with the formulation.
I could see lack of zinc causing problems with the retaining pin on the roller, especially if there isn't a bearing in there. Pin wears, gets weak, snap then things get real ugly real fast.
A tube of zinc supplement is cheap insurance for anything IMO.








