LAZER owners, check your Idler arm pivots!!!

Discussion in 'Lawn Mowing' started by TLS, May 19, 2004.

  1. TLS

    TLS LawnSite Fanatic
    Posts: 7,937

    I've been hearing a chattering under the seat of my Lazer when hot and idled down. Sounded like my hydros cavitating at low RPM. They operated FINE at high RPM though....

    Thought it was going to be an expensive May.

    Turns out, there was debris (wood?) in the grooves of my pump serpentine belt sheave. This caused the belt to jump, which caused the idler to jump. The loose idler was the cause of the noise.

    I do have to admit, while that idler zerk got grease, but only once or twice did I remove belt tension to do it :(

    Before removing the idler assembly, I inspected it. It looked to be bent, so I bought a new one which came with the bushings and zerk already installed. I figured for $11, I'd also replace the idler pulley itself while its off. Also needed was the internal pivot spanner bushing that the bolt goes through.


    Here's what I ran into.

    Idler arm itself was NOT bent, but I used the new one anyway as I didn't have new bushings to install into the old arm.

    Pivot bushing was very worn, as were the internal bushings. Bushings were wet, greasy, and a little rusty in color.

    The odd part though was where the spring attaches to the idler arm and the frame bolt. Both were severely worn. The bolt was almost worn half way through!

    Also bad was the serpentine hydro belt. It was cracked in several places.

    I also re-bushed the rear PTO idler arm while I was at it. Full set of bushings for both idlers was only $10.

    Now for some pics.... :eek:


    This is the problem....Notice the angle of the idler pulley compared to the rest.

    idler1.jpg
     
  2. TLS

    TLS LawnSite Fanatic
    Posts: 7,937

    Here is the new Idler arm and pulley.

    idler2.jpg
     
  3. TLS

    TLS LawnSite Fanatic
    Posts: 7,937

    Another shot of how bent-out-of-shape it was.

    idler3.jpg
     
  4. TLS

    TLS LawnSite Fanatic
    Posts: 7,937

    Notice debris on pump sheave. Looked to be wood like, but VERY hard and compressed.

    idlerjunk.jpg
     
  5. TLS

    TLS LawnSite Fanatic
    Posts: 7,937

    This is the old idler and bushing. Notice color of greasy, rusty bushing. :(

    idlerold.jpg
     
  6. STAN1366

    STAN1366 LawnSite Senior Member
    Posts: 334

    Thanks for the tip. I know what I'll be checking before going out tomorrow!
     
  7. TLS

    TLS LawnSite Fanatic
    Posts: 7,937

    Close-up of pivot bushing. Notice the wear on the ends.

    idlerbushing.jpg
     
  8. TLS

    TLS LawnSite Fanatic
    Posts: 7,937

    Here it is cleaned up, its wear is clearly shown here.

    idlerbushingworn.jpg
     
  9. TLS

    TLS LawnSite Fanatic
    Posts: 7,937

    Looks normal, right? This is the frame mount bolt for the idler spring.
     
  10. TLS

    TLS LawnSite Fanatic
    Posts: 7,937

    Oops....Forgot pic!!! Wish I could group pictures instead of individual posts...

    idlerspring.jpg
     

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