Who's online: smutley, ram6666, Daggs, Hoodeng, lowfly, Guests: 202
  • bikerphil Posts: 4
    melbourne
    Stock Poster bikerphil
    04 Dec 2017 08:32 PM
    hi y'all

    Got a 2008 street bob - 93 Cubic inch, 70,000k's
    Top end sounds like a sewing machine and rattles like a good un.  Dealer says this is normal and recommended I went back to organic oil from the syntheic stuff to quieten it down a bit..  Thing is its driving me bonkers, all i can hear is the friggin rattling every time I ride .

    Is this normal?  or is  the dealer pulling my chain?
    As theres no adjustment on the top end ( hydraulic lifters and all that)  is this just the result of an engine  thats done 70k's  and I need to think about new rockers/lifters etc.

    What do you guys think?

    Phil

  • fatbat Posts: 2652
    Forum Legend fatbat
    04 Dec 2017 08:39 PM
    Are you on the original lifters? I'd get a second opinion from a reputable Indy. Lifters should be changed before 70,000 kms 
  • Hot and Heavy Posts: 1589
    Hobart.
    Motor Head Hot and Heavy
    04 Dec 2017 08:43 PM
    I swear by these things. http://www.rockout.biz
  • speedzter Posts: 1679
    The 'Rat
    Motor Head speedzter
    04 Dec 2017 09:16 PM
    Don't go back to the dealer, find a good independent mechanic.
    Get them to check the valve train/cam chest for issues.
    Some noise is normal, but it sounds like yours is excessive.
  • rodders Posts: 5642
    =Moderator=
    Forum Legend rodders
    04 Dec 2017 09:25 PM
    Just fit a louder exhaust.
  • JFE Posts: 1228
    NSW
    Performance Poster JFE
    04 Dec 2017 09:41 PM
    What synthetic oil are you running? My 103 engine was quieter when I swapped HD Syn3 out for Mobil 1 V-Twin. Doesn’t smell as good, but I can live with that.
  • markwoumla Posts: 1479
    Performance Poster markwoumla
    04 Dec 2017 10:25 PM
    Posted by speedzter on 04 Dec 2017 09:16 PM
    Don't go back to the dealer, find a good independent mechanic.
    Get them to check the valve train/cam chest for issues.
    Some noise is normal, but it sounds like yours is excessive.

     The Above !!!!


  • bikerphil Posts: 4
    melbourne
    Stock Poster bikerphil
    04 Dec 2017 10:41 PM
    thanks guys

    yes original lifters , rods and top end - nothing has been changed.

    Re the oil question - I was using harley synthetic for about 2 yrs, but now gone back to Harley organic.

    @Mark
    dunno if im just being pedantic or not, Ill get a 2nd opinion


    cheers all

  • tussuck Posts: 1448
    Melbourne
    Performance Poster tussuck
    05 Dec 2017 02:17 PM
    Nothing wrong with the OEM gear, although when you do replace the lifters replace them go with quality like Jims or S&S.
    Noise top ends a re normal with high lift cams - although it should not be as bad as you make it sound
    Stay away from the Synth oil as I found my Evo started to leak oil and sound like a damn sewing machine when i swapped over to it.  Dino oil is definitely quieter!
    Often as not the cure is to slightly over tighten the pushrods by a turn or two.
  • fatbat Posts: 2652
    Forum Legend fatbat
    05 Dec 2017 07:00 PM
    But if the engine is stock it won't have adjustable pushrods 
  • tussuck Posts: 1448
    Melbourne
    Performance Poster tussuck
    06 Dec 2017 10:59 AM
    Good point.
  • bikerphil Posts: 4
    melbourne
    Stock Poster bikerphil
    26 Apr 2018 04:21 PM
    just in case anyones interested.  I fitted the Rockouts  as suggested by hot and heavy, did the job nicely, shes not rattling anymore, many thanks.
  • paulybronco Posts: 10247
    Forum Legend paulybronco
    26 Apr 2018 04:25 PM
    Posted by bikerphil on 26 Apr 2018 04:21 PM
    just in case anyones interested.  I fitted the Rockouts  as suggested by hot and heavy, did the job nicely, shes not rattling anymore, many thanks.

     Good result and agree they do wk very well

  • Hilly Posts: 2229
    Townsville
    Motor Head Hilly
    26 Apr 2018 04:58 PM
    I'm interested as well, good to hear they worked for you.
  • carbon fibre Posts: 385
    Stage 1 Poster carbon fibre
    27 Apr 2018 07:51 AM
    I fitted a set to my 90,000km SG not long ago, top end is quiet as a mouse now.

  • Hilly Posts: 2229
    Townsville
    Motor Head Hilly
    27 Apr 2018 09:10 AM
    Thanks Stix, got a set coming
  • Hilly Posts: 2229
    Townsville
    Motor Head Hilly
    27 Apr 2018 01:20 PM
    Posted by Cropduster on 27 Apr 2018 09:28 AM
    Anywhere in Aus that sells them?

    I'm almost ready to assemble my rocker boxes and don't want to wait any longer than i have to but these sound like a great idea.

    Cheers


     Not that I know of, Speedzter made his own, I think I read somewhere than the necks off a .223 case are the go, used to have thousands of them rounds and now got none so can't say for sure, ordered mine off eBay, maybe someone on here has a spare set you could replace?

  • Hilly Posts: 2229
    Townsville
    Motor Head Hilly
    27 Apr 2018 03:38 PM
    Posted by Cropduster on 27 Apr 2018 03:32 PM
    Cheers mate

     Are you on HTT? If you are message FSG, he may have a set, he is in Brissy area

  • Hilly Posts: 2229
    Townsville
    Motor Head Hilly
    27 Apr 2018 05:39 PM
    Posted by Cropduster on 27 Apr 2018 05:35 PM
    i'm hopeless with TLA's..... (three letter acronyms) what is HTT, and FSG?

    Thanks for the help though, LOL

     Harley Tech Talk, forum in the states, FSG is the handle of the fella to ask, stands for Fat Sir Garfield but it's FSG, clear as mud?

  • Hilly Posts: 2229
    Townsville
    Motor Head Hilly
    27 Apr 2018 07:03 PM
    You are welcome
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