[AT] Backpack leaf blower
Tom Armstrong
toma at risingnet.net
Fri Dec 3 17:14:39 PST 2021
On those two cycle engines isn't it customary to change both the piston and cylinder?
--
Sent from myMail for Android Friday, 03 December 2021, 05:01PM -08:00 from Mike M meulenms at gmx.com :
>Hi Steve, cylinder is hard plated and is scored on the exhaust side.
> Looks like the engine is toast. It took me me forever to tear it
> down. Looks like a new blower is in my future. It would cost me more
> to have a machinist repair it than to replace it.
>
>Thanks,
>Mike M
>
>On 12/3/2021 7:19 PM, Stephen Offiler
> wrote:
>>I am still curious about the cylinder. Still assuming it
>> has no liner, just hard plating. If all that's true... how's
>> it look?!
>>
>>SO
>>
>>On Fri, Dec 3, 2021 at 6:49 PM
>> Mike M < meulenms at gmx.com >
>> wrote:
>>>Hi Brian and Carl, yes when it dies it will still pull
>>> over easily but it will not start. At this point, I've fully
>>> torn it down, and the piston is really messed up. Looks like
>>> a time for a new one. I have about 2 acres to blow clean, so
>>> no 5 minutes Brian LOL.
>>>
>>>Thanks,
>>>Mike M
>>>
>>>
>>>On 12/3/2021 11:41 AM, Carl Szabelski wrote:
>>>>When cold, the cylinder is smaller
>>>> in diameter, so you get enough compression to start with a
>>>> worn ring. As it warms up you start to lose compression as
>>>> the cylinder expands to the point where the worn ring no
>>>> longer provides enough sealing and it stalls. Now, you may
>>>> say that the worn ring is also expanding against the
>>>> cylinder wall, and it does, but not as much as it should.
>>>> It’s also expanding on its internal surface, so it’s
>>>> creating a gap at the piston groove, allowing the piston
>>>> to essentially flop around. That’s what allows the piston
>>>> to hit the cylinder wall once it’s not being kept centered
>>>> in the cylinder. You can pull on the cord and feel what
>>>> you think is compression, but it’s mostly resistance from
>>>> all the other moving pieces.
>>>>
>>>>Carl
>>>>
>>>>On Thursday, December 2, 2021, Brian VanDragt < bvandragt at comcast.net >
>>>> wrote:
>>>>>Well if you can get your leaves blown
>>>>> in 5 minutes, you don't have to do anything to it,
>>>>> but you know at least the piston is scored and you
>>>>> can't replace it without taking everything else
>>>>> apart. When it quits can you turn it over with the
>>>>> rope or is it stuck?
>>>>>
>>>>>Brian
>>>>>
>>>>>-------- Original message --------
>>>>>From: Mike M < meulenms at gmx.com >
>>>>>Date: 12/2/21 10:37 PM (GMT-05:00)
>>>>>To: at at lists.antique-tractor.com
>>>>>Subject: Re: [AT] Backpack leaf blower
>>>>>
>>>>>Hi Brian it will run, but only for 5 minutes or so,
>>>>> then it's dead.
>>>>>
>>>>>Mike M
>>>>>
>>>>>On 12/2/2021 10:22 PM, Brian VanDragt wrote:
>>>>>>No matter what parts are
>>>>>> damaged, it's not running now, and it's not going
>>>>>> to fix itself. Just take it apart and see what you
>>>>>> need to fix it.
>>>>>>
>>>>>>Brian
>>>>>>
>>>>>>-------- Original message --------
>>>>>>From: Carl Szabelski <c.s.szabelski at gmail.com>
>>>>>>Date: 12/2/21 10:05 PM (GMT-05:00)
>>>>>>To: Antique Tractor Email Discussion Group <at at lists.antique-tractor.com>
>>>>>>Subject: Re: [AT] Backpack leaf blower
>>>>>>
>>>>>>One more thing that you might be able to do is
>>>>>> push the piston down, pull the spark plug, and try
>>>>>> to see the wall by looking through the spark plug
>>>>>> hole.
>>>>>>
>>>>>>Carl
>>>>>>
>>>>>>On Thursday, December 2, 2021, Carl Szabelski
>>>>>> < c.s.szabelski at gmail.com >
>>>>>> wrote:
>>>>>>>If you pull
>>>>>>> the head, you’ll probably find that the
>>>>>>> cylinder wall is also scored. Try pushing the
>>>>>>> piston down and sticking a finger in to see if
>>>>>>> you can feel the wall. Maybe use something
>>>>>>> like a small dental mirror. If the wall is
>>>>>>> scored you can probably get a new one as well.
>>>>>>>
>>>>>>>Carl
>>>>>>>
>>>>>>>On Thursday, December 2, 2021, Mike M < meulenms at gmx.com >
>>>>>>> wrote:
>>>>>>>>Here is the best picture I could get
>>>>>>>> after pulling the muffler. Looks like
>>>>>>>> the piston is toast. Any thoughts?
>>>>>>>>
>>>>>>>>Regards, Mike M
>>>>>>>>
>>>>>>>>On 12/2/2021 6:39 PM, Moe Fretz
>>>>>>>> wrote:
>>>>>>>>>So
>>>>>>>>> what's the cylinder inside look
>>>>>>>>> like?
>>>>>>>>>Can
>>>>>>>>> you save it?
>>>>>>>>>Husqvarna trimmer
>>>>>>>>> is well worth the repair costs.
>>>>>>>>>On
>>>>>>>>> Thu, Dec 2, 2021 at 3:11 PM Mike M
>>>>>>>>> < meulenms at gmx.com >
>>>>>>>>> wrote:
>>>>>>>>>>So I pulled apart my leaf
>>>>>>>>>> blower today, and looked at the
>>>>>>>>>> exhaust port, as was suggested.
>>>>>>>>>> Heavy scoring on the piston. So
>>>>>>>>>> you were right, she ran it with
>>>>>>>>>> straight fuel.
>>>>>>>>>>Mike M
>>>>>>>>>>
>>>>>>>>>>On 11/27/2021 7:20 PM, Moe
>>>>>>>>>> Fretz wrote:
>>>>>>>>>>>No, engine
>>>>>>>>>>> has experienced a lean
>>>>>>>>>>> seizure.
>>>>>>>>>>>Lack of lube
>>>>>>>>>>> is another way to put it.
>>>>>>>>>>>No quick
>>>>>>>>>>> fix.
>>>>>>>>>>>The engine
>>>>>>>>>>> will need a piston and
>>>>>>>>>>> rings at the least.
>>>>>>>>>>>
>>>>>>>>>>>Pull off the
>>>>>>>>>>> muffler, look in at the
>>>>>>>>>>> piston, you’ll see the
>>>>>>>>>>> piston scored on the
>>>>>>>>>>> exhaust side.
>>>>>>>>>>>If you’re
>>>>>>>>>>> lucky the cylinder isn’t
>>>>>>>>>>> damaged, you’ll have to
>>>>>>>>>>>pull the
>>>>>>>>>>> cylinder to check it.
>>>>>>>>>>>
>>>>>>>>>>>Used to do
>>>>>>>>>>> 15 or 20 of those every
>>>>>>>>>>> year.
>>>>>>>>>>>One quick
>>>>>>>>>>> error, sometimes, can cost
>>>>>>>>>>> a lot of money.
>>>>>>>>>>>
>>>>>>>>>>>On
>>>>>>>>>>> Sat, Nov 27, 2021 at
>>>>>>>>>>> 15:33 Mike M < meulenms at gmx.com > wrote:
>>>>>>>>>>>>So
>>>>>>>>>>>> my lovely wife was out
>>>>>>>>>>>> blowing leaves the other
>>>>>>>>>>>> day with my backpack
>>>>>>>>>>>>blower, and it ran out
>>>>>>>>>>>> of fuel. She mistakenly
>>>>>>>>>>>> filled it with straight
>>>>>>>>>>>>lawnmower gas, and after
>>>>>>>>>>>> a bit it started to
>>>>>>>>>>>> stumble and then quit.
>>>>>>>>>>>> She
>>>>>>>>>>>>came in to tell me about
>>>>>>>>>>>> it and ask what the
>>>>>>>>>>>> problem was. When I
>>>>>>>>>>>> looked
>>>>>>>>>>>>at the tank I noticed
>>>>>>>>>>>> there was no blue tint
>>>>>>>>>>>> in the gas, and I asked
>>>>>>>>>>>> her
>>>>>>>>>>>>what can she filled it
>>>>>>>>>>>> from, and she pointed to
>>>>>>>>>>>> the gas container I use
>>>>>>>>>>>>for my zero turn. I told
>>>>>>>>>>>> her that was straight
>>>>>>>>>>>> gas, and she needed to
>>>>>>>>>>>>use the 2 cycle mix,
>>>>>>>>>>>> that is in another red 5
>>>>>>>>>>>> gallon can, honest
>>>>>>>>>>>>mistake. She claims I
>>>>>>>>>>>> told her to use that
>>>>>>>>>>>> fuel, when I know I did
>>>>>>>>>>>> not.
>>>>>>>>>>>>I used it today and it
>>>>>>>>>>>> will run for about 5
>>>>>>>>>>>> minutes and then sputter
>>>>>>>>>>>> out
>>>>>>>>>>>>and die, like it's
>>>>>>>>>>>> running out of gas. It
>>>>>>>>>>>> will restart, but then
>>>>>>>>>>>> the
>>>>>>>>>>>>same scenario starts all
>>>>>>>>>>>> over again. Is their any
>>>>>>>>>>>> chance of saving this
>>>>>>>>>>>>engine? Maybe a higher
>>>>>>>>>>>> oil/gas ratio? Thanks in
>>>>>>>>>>>> advance.
>>>>>>>>>>>>
>>>>>>>>>>>>Regards,
>>>>>>>>>>>>Mike M
>>>>>>>>>>>>
>>>>>>>>>>>>--
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>>>>>>>>>>>>_______________________________________________
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>>>>>>>>>>>--
>>>>>>>>>>>Moe Fretz
>>>>>>>>>>>
>>>>>>>>>>>L’Orignal ON,
>>>>>>>>>>>Canada
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