Bobby, One of my cars has 140,000 miles on it running Havoline and now Advance Auto house brand 5W30, used to run Fram oil filters now use Motorcraft.

Someone please tell me when I should start looking out for failure.


John

 

When you have more than stock seat pressure on the valves and a brand new camshaft. My last cam was .580 lift. The next one will have mid .600 figures.
Do a search on 460ford.com about camshaft failure.
Your 140,000 mile camshaft was broken in back when oil had ZDDP.
If you won't believe me maybe you'll believe Crane Cams...
http://www.cranecams.com/pdf/548e.pdf
...or it's possible they don't know what they're talking about either...

 

Sorry bub, is this a racing thing or what? When was the zink removed from the oil? Brand new engines are being cranked for the first time every day.


John

 

No john it's NOT a racing thing. You can live in the dream land that you're in now,just dont rub off your ignorance on those that want REAL information. You should NOT pst info on subjects you really dont understand.
-Lance

 

What year was the zink declared no longer safe & available??



John

 

the zinc was removed from oil within the last two years so if your's was built with oil made prior to that date, or if you survived the first 5,000 miles without wiping out the cam lobes, you're ok.

It's not just myth, it's fact. Talk with any of the cam companies and they'll tell you the same thing.... Probably more susceptible to failure on the high lift racing type cams, but nevertheless a consideration on the stock rebuilds also.

For those who care, Royal Purple just came out with a break in oil for the initial run in on new engines. The lack of zinc is not as big an issue with new hydraulic roller cams as it is with the solid lifter and hydraulic lifter engines.

I've got it covered three ways, bought a case of the GM EOS additive (loaded with zinc) and just got a case of the Royal Purple break in oil (loaded with zinc) and plan to use both on engine builds. The third way is that most everything I build is either a hydraulic roller or solid roller cam.

The lack of zinc is an issue, been many articles written by knowledgeable engine builders and cam manufacturers espousing it. Lots of folks who choose to not believe it were rewarded with lobes wiped out on their new cams....not all of them, but a considerable amount. Believe it or don't believe the experts and take your chances. With the cost of rebuilding an engine even to OEM specs, think I'll use the additives and the break-in oil...... I personally know of 2 former non-believers who lost cams on fresh engines this summer, that along with all the articles is proof enough for me....

 

As I said NEW engines are roller, not flat tappet.

 

Are you talking for break in or what?


John

 

That's the way I understood it based on the Crane Cams link in his #17 post. It says the 1st 20 min of break in are the most critical.

 

I also run Valvoline Racing oil (which is high in ZDDP) in my stuff to make sure my cam and lifters last longer. First break-in is critical. A lot of the engine builders on 460ford.com have posted a lot of info on what they've experienced with break-ins and overall cam, lifter and valvetrain longevity. A lot of them run diesel rated oils because of the high zinc content.

 

Anyway, best to keep an eye on the ingredients label.... Many of them have no more zinc and don't really bother to mention it....

Even the diesel oils have had the zinc content lowered. Rotella used to be great for break in oil, not sure what they've done to it now... Think I'll be using the Royal Purple break in oil and the GM EOS.

The first 20 minutes is critical on a new cam. With what a good one costs these days, I just would rather not take any chances on wiping out a lobe or three!!!!!

 

Ah break in, I see now.

If these oils available today are really killing our motors folks would be clammering all over the place, but I don't recall any recent rumbling on the subject.

There is always someone that can't drink tap water that meets all kinds of regulations in favor of expensive bottled water. Spend your money be happy with your fancy label oil, you just might add 6 months to the life of the engine for another few hundred bucks.


John

 

jo,Obviously you refuse to do ANY type of research. But thats OK. You NEED to stop trying to preach your ignorance to those that want FACTS!
-Lance

 

Could be Lance, or could be that you elitist thinking empty suit Obama types need to be kept in check.

John

 

jo,I have decide you're not worth the arguement. So as in another post you've managed to destroy with arguing FACTS, I am bowing out. Believe what you will, ignorance ALWAYS has a way of catching up with you.
-Lance