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  1. #31
    Official RnS Addict mygasser's Avatar
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    Quote Originally Posted by 30psi View Post
    You could always go to the hassle of removing the lifter from the bore to avoid any further lobe wear. It'll run on 7, but at least you'll rule out any further contact with the lobe.
    but as i said that'd leave the oil gallery wide open with a loss of oil pressure.
    neil.
    need a job done on your project? i may be able to help.

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  3. #32
    My name is Martin 30psi's Avatar
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    Ah yeh good point!
    '62 Ford Thunderbird
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  4. #33
    Gear head Lemon's Avatar
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    Just a point to note which may not be relevant in this instance but may be of interest to others...

    I had hands on an engine that had wiped 3 lobes on the cam and when the owner put a new cam in it wiped one lobe within 30 minutes of running with the correct springs, valve/spring geometry, procedure and oil. Turned out that the timing gear had a thrust washer in that was in the past installed to centre the lobe in the lifter bore for a roller cam/lifter. Not so advantageous when the cam was changed to a flat tapper lifter. removing the thrust washer sorted the issue.
    More than it shoud be, but not as much as it could be

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  7. #34
    Official RnS Addict 28Chevy's Avatar
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    Whirrr whirrr chuff chuff de chuff........chuff......BRUMMMM!

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  8. #35
    Stroker Kustom Jim's Avatar
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    Getting back to an earlier discussion point.
    The design seems prehistoric, despite me not swapping to a roller cam myself. lol

    The cam lobe simply pushes up the lifter thing. As it revolves it rubs and pushes, metal to metal. Outrageous the only thing stopping instant wiped flat lobes is slippery oil and zinc stuff, and a lifter designed to rotate avoiding flat spots. Wtf!!

    You can see the roller lifter simply revolves whilst cam pushes it up. Way less friction.



    Illustration seems somewhat exaggerated as it is using a roller cam profile with very fast ramp and round lobe top but gives the idea: Flintstones : 21st century

    Disclaimer to the SpamBot Trolls: this is just a bar room interpretation.

  9. #36
    Stroker Kustom Jim's Avatar
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    I broke in two Chevy 8's without a problem. RV cam and Comp Cams Crazy Nutter ******* cam.
    I actually put piping hot water in the fan heater warmed up block with loads of goop and break in oil.
    Was nerve racking, engines got hot but kept going.
    My heads had dual springs but I left both sets in no problems.

    Apparently you can have extra treated cams just in case. But I thought this had gone away as quality improved over the years
    "We should take comfort that while we may have more still to endure, better days will return: we will be with our friends again; we will be with our families again; we will meet again."

  10. #37
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    The higher lift cam it is, the more spring press it req, the more risk of wiping a lobe
    Some folk cant be arsed to remove the dist, prime the oil supply to every rocker till it ****es down the lifter gallery, cam lube, re assemble and start...its too much work for some people so they just fire it up...bad news unless you are lucky.

  11. #38
    Official RnS Addict MYTHING's Avatar
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    emoji in wrong place

    Priming with a tool took about 8 minutes before I got oil at all rockers on a Pontiac 350

    I would never start a stripped engine without priming

    If I felt that lucky I would start buying a lottery ticket again
    IT'S NOT GETTING WHAT YOU WANT...IT'S WANTING WHAT YOUVE GOT

  12. #39
    My name is Martin 30psi's Avatar
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    To get the oil round quicker, nudge the engine over by hand, therefore you stand a better chance of oil galleries lining up in the crank, cam even for a split moment.
    '62 Ford Thunderbird
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