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Thread: COOLING FINS

  1. #1

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    Oct 2010
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    '03 scag tigercub

    COOLING FINS

    Just a reminder while our mowers are down for the cold and flu season to pull some guards or
    covers to clean out the cooling fins on the engine. If I did this years ago I would still be using my
    old Bolens today.....cubby

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  3. #2

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    Re: COOLING FINS

    Quote Originally Posted by cubby View Post
    Just a reminder while our mowers are down for the cold and flu season to pull some guards or
    covers to clean out the cooling fins on the engine. If I did this years ago I would still be using my
    old Bolens today.....cubby
    Good advice, and during the mowing season when I am done with the mower for the day I always use an electric blower to remove the loose debris before storing. On newer mowers there doesn't seem to be too much of a problem with chaff build up on the cooling fins. About your experience, you mean your Bolens engine was damaged because you didn't keep the fins clean?
    "I didn't plan to do anything today, but by noon I was almost half done...."

  4. #3

    Join Date
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    Murray

    Re: COOLING FINS

    Quote Originally Posted by cubby View Post
    Just a reminder while our mowers are down for the cold and flu season to pull some guards or
    covers to clean out the cooling fins on the engine. If I did this years ago I would still be using my
    old Bolens today.....cubby
    ---------------------------------------------------------------------------------------------------------
    Thanks for the reminder cubby. Out of sight - Out of mind makes it more difficult to remember that maintenance item.

    In general, the blower fan screen filters chaff debris enough to prevent cooling fin plugging but not always. More often a mouse nest is the culprit. A quick check is to hold one's hand below the air discharge area below the head as an air flow test. This is only a quickie and doesn't replace removing the shroud for an actual look see.

  5. #4

    Join Date
    Oct 2010
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    New Jersey
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    '03 scag tigercub

    Re: COOLING FINS

    Quote Originally Posted by JDgreen View Post
    Good advice, and during the mowing season when I am done with the mower for the day I always use an electric blower to remove the loose debris before storing. On newer mowers there doesn't seem to be too much of a problem with chaff build up on the cooling fins. About your experience, you mean your Bolens engine was damaged because you didn't keep the fins clean?
    I always washed the mower before I put it away, and once in a while hose off the fins on the B&S
    twin engine. Then in about 15 yrs it started to tap very loudly. I took it apart and the valve seat was
    jumping around in its bore. Just adjacent to the valve area the fins were clogged with everything from
    grass to dirt. The bore was so worn out that I couldn't keep the seat in place no matter what I tried.
    I used it for another year then sold it and bought the scag. I think I did more harm just hosing it off
    by pushing the debris in farther. Now I pull a few covers and use a stiff brush and air blow it clean.
    Then I wash it, my wife says I'm a nut when it comes cleaning things.....cubby

  6. #5

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    Re: COOLING FINS

    Quote Originally Posted by cubby View Post
    I always washed the mower before I put it away, and once in a while hose off the fins on the B&S
    twin engine. Then in about 15 yrs it started to tap very loudly. I took it apart and the valve seat was
    jumping around in its bore. Just adjacent to the valve area the fins were clogged with everything from
    grass to dirt. The bore was so worn out that I couldn't keep the seat in place no matter what I tried.
    I used it for another year then sold it and bought the scag. I think I did more harm just hosing it off
    by pushing the debris in farther. Now I pull a few covers and use a stiff brush and air blow it clean.
    Then I wash it, my wife says I'm a nut when it comes cleaning things.....cubby
    Thanks for that information...I used to be guilty or just hosing off my mowers myself, now I use a blower instead and I think it does a better job...I believe clean engines run cooler myself.
    "I didn't plan to do anything today, but by noon I was almost half done...."

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