Perkins vibrate?

Discussion in 'Heavy Equipment & Pavement' started by James Filo, Oct 19, 2007.

  1. James Filo

    James Filo LawnSite Member
    Posts: 2

    I traded in my 2000 ASV30 with a cat 3 cylinder on a new ASV 30 with a Perkins 3 cylinder. The engines are exactly the same. The cat ran smooth as silk but the new Perkins vibrates like nuts. WTH is wrong ? Anyone experience this ? It's to much I can't live with it. Thanks Jim
     
  2. Fieldman12

    Fieldman12 LawnSite Bronze Member
    Posts: 1,504

    Well, I cannot comment on your particular motor but we have some tractors with Perkins motors. Some where noted to vibrate like that so eventually they switched to a smoother running Perkins motor later. I would think though by now Perkins motors would run pretty smooth.
     
  3. ksss

    ksss LawnSite Fanatic
    Posts: 7,128

    You might check that the motor mounts are tight. Perhaps they have not been torqued down tight enough.
     
  4. CarterKraft

    CarterKraft LawnSite Senior Member
    Posts: 290

    does it vibrate at a certain RPM, at full throttle, at idle?

    Some of the smaller engines doen't seem to be balanced at any RPM other than High Idle.
     
  5. turboawd

    turboawd LawnSite Member
    from midwest
    Posts: 235

    cat owns perkins.
     
  6. James Filo

    James Filo LawnSite Member
    Posts: 2

    It vibrates bad at 1/4 throttle. At full throttle and idle it does not vibrate hardly at all. I mostly work at 1/4 to 1/2 throttle and that is where it is the worst. The dealer said wait until I have 20 to 30 hours on and the track settles in. I understand the track part but when I'm sitting still it does it ,thats the motor.I wish there was a machine close enough I could compare it to. I know it's not right.The dealer said if it still does it and he will come check it out. So I will see. I just thought someone out there had a new RC30 I could get input from. Thank you. Jim
     
  7. CarterKraft

    CarterKraft LawnSite Senior Member
    Posts: 290

    that is a little 3 cyl perkins engine correct?

    If so it will vibrate at RPMS less than high idle.

    Check a 302 or 303 CAT excavator for a comparison.
     
  8. rane-dig

    rane-dig LawnSite Member
    from KS
    Posts: 2

    I have a 2004 polaris which is a rebranded RC-30. It has the 3 cylinder PerkaPillar engine. It does have a rough idle at low speeds and cleans up at higher speeds. Performance has been good. I also have a cat 304 cr that runs like silk with a 4 cyl mitsubishi. A lot of the sensation of the 3 cyl is due to the design of the engine. Without a counterbalance shaft, some vibration is to be expected. If a smoother running 4 cylinder is desired, it is going to cost a bit more. I have no complaints.

    Best Regards.
     
  9. dnltractor

    dnltractor LawnSite Senior Member
    Posts: 285

    I know this is an old post but I just bought a asv rc30 and I noticed it vibrates alot too but nothing that other than what was stated before about no counter shaft balance , my new holland tractor w/ a 3 cyl diesel vibrates too , but not as bad but it also doesn't have near the power as the perkapillar either , so far I love my machine
     
  10. nosparkplugs

    nosparkplugs LawnSite Gold Member
    Posts: 3,445

    Caterpillar could not match or beat the small euro style Agriculture use Perkins diesels, So Cat just purchased Perkins serveral years ago, and left them alone. You have a Perk-a-Pillar. Perkins remains to manufacture their own diesel engines with Perkins name. Cat now has the ability to cherrypicks the engines as needed for the US market, and paints them Cat orange. That 3 banger is very rough, vs the 4 banger. Their is nothing wrong with it

    You have a Perkins Agriculture: 400 Series diesel Model# 403D-11

    Also Perkins owns Shibaura diesel, and uses their fuel injector pumps on these Perk-a-Pillar diesels:dizzy:
     
    Last edited: Feb 15, 2009

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