[AT] Backpack leaf blower
Mike M
meulenms at gmx.com
Fri Dec 3 15:49:42 PST 2021
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>
>> <mailto: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> <mailto: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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>>>> --
>>>> Moe Fretz
>>>>
>>>> L’Orignal ON,
>>>> Canada
>>>>
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