[AT] Backpack leaf blower
Mike M
meulenms at gmx.com
Sat Dec 11 13:40:32 PST 2021
Hi Steve, the last rings I played with was from a Farmall H I rebuilt in
the 90's. The only 2 cycle oil I use is the Stihl silver bottle. The
only reason I tried to remove them, is that they wouldn't rotate
smoothly using an awl. I thought that maybe there was crud in the groove.
Regards,
Mike M
On 12/11/2021 7:08 AM, Stephen Offiler wrote:
> Hi Mike:
>
> Sounds like a reasonable conclusion. Between getting work done with a
> new one, and farting around experimentally with the old one, you made
> the call that's right for you.
>
> Have you played around with piston rings much in the past? They are
> quite brittle to begin with. I'm not sure whether overheating would
> make them even more brittle, but, maybe. I think if they were
> seriously affected by heat, they might be discolored too.
>
> Another good call with concern about other internals. Specifically,
> bearings. Mains, conrod, and piston pin are all lubricated by that
> tiny bit of oil that's carried in with the gas mix.
>
> Hey, while we're here, I'll put in a plug for synthetic 2-stroke
> oil. I am a Stihl guy (Stihl vs Husky is like JD vs Farmall or Ford
> vs Chevy!) and Stihl packages 2 different products. Little orange
> bottles are the regular, "perfectly OK" stuff, and for more money you
> get silver bottles with the synthetic oil. I use silver bottles.
> What I have noticed over time is that (a) the gas doesn't go stale (b)
> very little smoke or smell (c) I have never, and I am not
> exaggerating, NEVER purchased a spark plug. I've got a saw that's
> probably about 15 years old now, a weed whacker must be going on 20,
> and a hedge trimmer that I got at auction, who knows how old.
>
> Best regards,
> Steve O.
>
> On Fri, Dec 10, 2021 at 1:50 PM Mike M <meulenms at gmx.com> wrote:
>
> I did tear it down further and removed the piston, When i tried to
> remove the upper piston ring it snapped and was very brittle, I
> assume from over heating. I bought a new blower, the exact same
> model, and will keep the old one as a parts machine. One concern I
> had with just replacing the jug and piston, is I don't know what
> internals might be damaged.
>
> Regards,
> Mike M
>
> On 12/9/2021 7:59 AM, Stephen Offiler wrote:
>> Hi Mike:
>>
>> I didn't get any picture with this note. Maybe it got stripped
>> due to excessive image size? There's a limit. I think below
>> around 350K (working from memory) is good to go.
>>
>> Steve O.
>>
>> On Wed, Dec 8, 2021 at 7:26 PM Mike M <meulenms at gmx.com> wrote:
>>
>> Hi Steve,
>> Here's a better picture of the scoring, this piston is
>> literally the diameter of a silver dollar. my reason for the
>> first pic was to figure out how to get the piston pin out. I
>> may have to send this in separate posts.
>>
>> Thanks,
>> Mike M
>>
>> On 12/8/2021 6:40 PM, Mike M wrote:
>>> Hi Moe,
>>> Here's a shot of the piston and the retaining pin, not
>>> really sure how to get the pin out since the retaining clip
>>> appears to be a washer not a cir clip. I can order a new
>>> cylinder, piston, pin, washers and and gaskets for about
>>> $40, a lot cheaper than a new blower. Thanks for any advice
>>> anyone can offer.
>>>
>>> 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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