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Old July 6th, 2012, 11:57 PM   #1
junkjeep
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Default new cam installation/break in oil?

Ok putting an aftermarket cam in my 78 f150 w/ 351m/400, i know u need break in oil because mosy oils no longer have zinc in them, not sure if i shoild use valvoline vr1 or conventional oil with a breakin additive, also i am wondering if i need to use engine assembly lube for the cam or if ican just coat it in motor oil since i am going to pre pump the oil pump before i start the engine ( oil pump is also new - melling hi volume-) thanks
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Old July 7th, 2012, 12:10 AM   #2
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Break in oil and assy lube is cheap. Use both and save yourself from a thread titled "why did I eat a cam lobe". And use a mineral based oil, not synthetic.

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Old July 7th, 2012, 12:15 AM   #3
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Thats kinda what i figured ( ive burnt up a cam before because i didnt know better) i was just wondering if the vr1 was sufficient or if i should go with conventional oil with the lucas or royal purple breakin additive? Im also assuming the assy grease has the zinc and whatnot in it as it does not say on the package if it does or doesn't
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Old July 14th, 2012, 08:10 AM   #4
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Theve made new oil technology sort of a black art lately havent they. Most newer engines have roller lifters so they dont care what oil you use per say
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Old July 14th, 2012, 08:56 AM   #5
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I like joe gibbs break in oil and then rottela 15w40 diesel oil with a 1/2 bottle of comp cam additive every change after that.You dont want to run to much additive,or additive with the break in oils. You need the zinc and phosphate with hydralic cams,but you can add too much which leads to the oil molocules not sticking together like the should.


Make sure every thing is set as close as possible so you can start your motor and keep it above 2500 rpm for 30 min.It helps to have another set of eyes to watch for leaks and stuff.
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Old July 14th, 2012, 09:53 AM   #6
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Try a good 20w50 racing oil with zinc. Make sure to run RPM,s like bdd1469 said.
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Old July 15th, 2012, 11:40 AM   #7
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I've heard the Rotella may no longer be a good choice, since the '07 EPA emissions on diesel trucks, they removed some additives that were causing ash accumulation issues in DPFs.

Redline makes a high zinc oil that i do know of.

I haven't built an engine in a long time, especially with flat tappets, so take my opinion for what it's worth.
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Old July 15th, 2012, 08:17 PM   #8
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no common american oils have enough zinc/phos. for flat tappet cams.
this includes todays diesel oils like rotella.

try mobil one 5w40 tdt, or valvoline vr1 race oil.

or use your favorite oil with a zddp addative.
always use a molly cam/assembly lube for a new cam.
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Old July 17th, 2012, 11:42 PM   #9
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there's some talk that Valvoline vr1 is just regular ol' Valvoline put in a fancy silver bottle with a fancy "race" sticker but Valvoline emailed me back and said vr1 will work great as break in oil and i also talked to a local engine builder who also recommended vr1 so that's what i did, someone told me to run it at least 2000rpm for no less than 20 minutes a while back so i ran it around 2100 rpm's for about 23 minutes, hope its long enough :-/
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