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piston change...do you....??

Discussion in 'Chainsaw' started by SawGarage, Nov 17, 2010.

  1. SawGarage

    SawGarage Addicted to ArboristSite

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    always replace the pin bearing?

    and/or when to tell it needs to be changed? I see some marks on the pin (copper??)

    where to buy? dealer only?

    thanks!

    J
     
  2. Cantdog

    Cantdog Tree Freak

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    My own saws.... not always unless it is obviously in bad condition if only replacing the rings. However when I use a new piston and pin it gets a new bearing every time if it's mine or a client's saw. Not that it probably makes chit for difference or always needs it but makes me feel better knowing it's new too.

    Dealer part or some site sponsors carry them (Spike60, Northwoods Saw etc)

    $6-7 for peace of mind.........priceless!!!:cheers:
     
  3. SawGarage

    SawGarage Addicted to ArboristSite

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    Thanks Robin...

    does someone have a list of parts that swap between saws for the pin bearing?

    IE: would j-red 670, 268/272 and 372 saws be the same??

    Ideas?

    thanks,

    J
     
  4. HiOctane

    HiOctane Addicted to ArboristSite

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    Different,372 is #5032 556 01 while 266 is # 501511301 as well 630,61,etc.


     
  5. SawGarage

    SawGarage Addicted to ArboristSite

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    Thanks HiOctane....

    Anyone know what saws interchange, or use the same?

    Husky Dealer is an over an hr round trip with NO chatting...so i'd like to make the trip once for a few saws.... (now and later...)

    thanks!!

    J
     
  6. Trigger-Time

    Trigger-Time Guest

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    Baileys website can be of real help for checking out what Husky
    saw parts will interchange. At one time I was working on a bunch of Huskys
    I would lookup the saw I was working on to see if PC and other
    parts would interchange. It was a big help to me.


    TT
     
  7. AZLOGGER

    AZLOGGER AboristSite Guru

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    SawGarage:
    503 25 56-01 NEEDLE BEARING-359,357XP, 570,575XP,372XP,362,365,576XP, & etc.

    503 73 39-01 NEEDLE BEARING-630,670,2083,266,268,272XP,2071,&371XP (1999 & earlier)

    WOW I'm now a Arboristsite MVP
     
    Last edited: Nov 18, 2010
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  8. SawGarage

    SawGarage Addicted to ArboristSite

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    TT, cool man! :clap: forgot about that!

    fantastic!

    J
     
  9. SawGarage

    SawGarage Addicted to ArboristSite

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    so what's a good indicator of time to change?? or re use?

    On car/truck, etc non-needle bearings, the copper is a good indicator of change needed....

    J
     
  10. AZLOGGER

    AZLOGGER AboristSite Guru

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    :agree2:
    :agree2:

    Cantdog:
    That is a very good Rule of Thumb to go by!
     
  11. Winn R

    Winn R ArboristSite Operative

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    I don't know if my experience is weird but I've never seen one fail.

    And the only ones I see are the real dogs.

    I've seen frequent damage from retaining pins and even broken pistons but the needle bearings were still good.
     
  12. Cantdog

    Cantdog Tree Freak

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    :agree2: Nope I've never seen one fail either. But I have seen some that showed definate wear and over heating. Like I said though, $6-$7 added to the cost of a new piston kit is just good for peace of mind. I'd probably replace the big end bearings too (if you could) with a new piston.
     
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  13. Winn R

    Winn R ArboristSite Operative

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    That's definitely the right way to do it. I realized, when reading this thread, the last several piston's I'd done had been haphazard regards the bearing. I'll start at the least giving them a good look over. Thanks.
     
  14. SawGarage

    SawGarage Addicted to ArboristSite

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    I'm gonna revive this thread for a minute, and see what the consensus about the 99 and earlier crankshaft thoughts are...

    IE: I have a 2071, and a 371 here... both have 2-ring pistons.

    Before I tear them down,


    Is there a difference in the pistons & pins on the earlier years, or a difference with the crank??


    ALSO, I saw this on Bailey's site, and it confused me.. I will ask Grande Dog though: http://www.baileysonline.com/itemdetail.asp?item=HVP 503 25 56 01&catID=


    It lists 268 & 272, 357-359, 362-372, 575-576 all with the same bearing :dizzy: :confused:


    course, to throw a wrench in THAT mix, I need a 262 bearing and a 357 bearing....:help: 501 86 18-01 is listed for a 262 bearing, and a search came up with it ALSO in a 357-359 IPL...that bearing is apparently the SAME as an earlier 357 13mm wide crank (they are now 15mm, it seems...) WAY confusing...


    :help:

    Thanks guys!

    J
     
    Last edited: Mar 15, 2011
  15. Dan_IN_MN

    Dan_IN_MN Addicted to ArboristSite

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    Now you can on some saws!

    I came across this the other day: Connecting Rod fit HUSQVARNA 51, 55 Rancher, EU1, EPA - eBay (item 400201863111 end time Apr-10-11 08:56:09 PDT)

    I think some might find this interesting.
     
  16. 67L36Driver

    67L36Driver Addicted to ArboristSite

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    To me, this is the same deal as main bearings and seals. That is, you can buy them from your local industrial supply house given the O.D., I.D., and Length. Way back when most all needle and small roller bearings were made by McGill. But the Chinese probably bought them out by now.:msp_rolleyes:

    J.M. $0.02
    Carl
     
  17. SawGarage

    SawGarage Addicted to ArboristSite

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    Hmm...didn't think about this. I know with the flange bearing for my snow thrower, it was WAY cheaper to order online... the local place wanted MORE than online, then tax, then I had to pay a UPS charge, as they didn't stock it :rolleyes: woulda been amost 2x the amount locally :mad:

    but, I hadn't thought about that!

    J
     
  18. parrisw

    parrisw Tree Freak

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    Here is a chart to tell you what the 503255601 pin bearing fits.

    [​IMG]
     
  19. SawGarage

    SawGarage Addicted to ArboristSite

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    Cool man!!

    are other bearing #'s so easily accessible? for a chart?? :D

    Thanks!!

    Jay
     
  20. parrisw

    parrisw Tree Freak

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    Not sure, would have to do some more searching.
     

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