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Thread: Wiped out cam after 1 year

  1. #1
    Join Date
    Apr 2009
    Location
    Essexville, Michigan
    Posts
    120

    Wiped out cam after 1 year

    My cam is wiped out after only one year. The guy that built my 350 said it was because I donít drive enough consistent miles. It sits to long between runs and not long enough to completely harden the cam. He wants to run a roller cam this time. Not sure if I should at a price tag if $2400. He will do a flat tappet for $1000. Whatís the thoughts on roller cams

  2. #2
    Join Date
    Jun 2007
    Posts
    548
    I hv no comment on type of cam to recommend but wondering if you been using the oil for our cars that contain the zinc additive that our cars need?
    Jon

  3. #3
    Join Date
    Apr 2009
    Location
    Essexville, Michigan
    Posts
    120
    Quote Originally Posted by jwsolds View Post
    I hv no comment on type of cam to recommend but wondering if you been using the oil for our cars that contain the zinc additive that our cars need?
    Yes I am using the 10-30vr1

  4. #4
    Join Date
    Mar 2012
    Location
    fort lauderdale
    Posts
    831
    1000-2400 to put a cam in an engine?? That's absurd!!

  5. #5
    Join Date
    May 2007
    Location
    Dallas, Texas
    Posts
    2,779
    If it wiped the lobes there will be metal from the cam and the lifters through out the engine. Quite possibly a lower end rebuild plus cam and lifters and at least a disassembly and inspection and then back together after cleaning.

  6. #6
    Join Date
    Feb 2014
    Location
    Ontario, Canada
    Posts
    344
    I don't know what you mean by hardening the cam while driving! The cams come are manufactured to certain tensile strengths and specs. The don't work harden
    while driving after installed.
    If you have a mild build I would go with a flat tappet cam & lifters, if you know you just wiped a cam lobe, just re&re the cam/lifters new oil/ filter gasket set and your good to go. Check the T/C you may want to replace it and dial the cam in with a cam card.
    It would be a weekend do it yourself job.
    Eric & Christine

    http://73-77oldsmobile.freeforums.net/

    1976 Olds Cutlass Supreme
    2009 Pontiac G8 Black
    2009 Pontiac G8 liquid red
    2006 Pontiac GP Silver

  7. #7
    Join Date
    Sep 2017
    Location
    San Jose, CA
    Posts
    10
    If the cam wasn't broken in properly with break in oil, then that is most likely the issue. You need to add ZDDP (Zinc dithiophosphate) to your oil during break in, and it is recommended to use it at all oil changes when running a flat tappet camshaft.
    The break in procedure is to run the engine above 2000 rpm for 20 minutes and vary the rpm over that time. Then drain the oil and change the filter. Drive the car for 500 mile and do another oil change and then change the oil on the regular schedule.
    Letting the engine sit for any length of time will NOT hut the cam unless water somehow got into the engine, and even then it is VERY unlikely to effect the cam.

  8. #8
    Join Date
    Mar 2012
    Location
    fort lauderdale
    Posts
    831
    In actuality you are breaking in the lifters. It's called breaking in the cam but your actually creating a wear area on the lifters face to the cam loves. If you don't break it in properly then you will wipe a lobe quite quickly....

  9. #9
    Join Date
    Sep 2017
    Location
    San Jose, CA
    Posts
    10
    Lets not get into a technical race here.....but you are getting a wear pattern established on both, not one or the other. I win.

  10. #10
    Join Date
    Mar 2012
    Location
    fort lauderdale
    Posts
    831
    In actuality you are breaking in the lifters. It's called breaking in the cam but your actually creating a wear area on the lifters face to the cam loves. If you don't break it in properly then you will wipe a lobe quite quickly....

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