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Posted by Jim Elbrecht on December 3, 2007, 5:13 pm
I've got an old Toro CCR [3horse?] that was showing signs of carb
problems last year so I rebuilt it last week.
The carb is a diaphragm type on a Tecumseh HSK600-1680s.[replacement
carb is 640086A - the only numbers on this one are '744 9BS']
I knocked out the 2 welch plugs and soaked the carb overnight in carb
cleaner.
Cleaned the plastic needle- it looked fine.
Cleaned gas tank [plastic] and replaced gasoline.
After the rebuild I started it up and it ran ok at factory- warmed it
up, adjusted to what sounded real good. . . and waited for snow.
That was only a week ago, but today I couldn't keep it running. Primed
it, and it started fine- but it acted like it wasn't pumping gas. As
soon as the primed gas ran out, it died. Tried adjusting the carb
back to factory- but it wouldn't stay running for more than about 30
seconds. I repeated it often enough to warm the thing up, but it
still won't stay running.
I'll play with it more tomorrow- but I'm wondering if someone has run
across this before.
Because it doesn't seem to be pumping, my first thought is that I put
the diaphragm in wrong, but then why did it run so well last week?
Thanks,
Jim
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Posted by Stormin Mormon on December 3, 2007, 7:28 pm
Someetimes the float needle sticks in the seat. Tip the machine on its side,
take the float bowl off, wiggle the float. Make sure the needle moves.
--
Christopher A. Young;
.
.
I've got an old Toro CCR [3horse?] that was showing signs of carb
problems last year so I rebuilt it last week.
The carb is a diaphragm type on a Tecumseh HSK600-1680s.[replacement
carb is 640086A - the only numbers on this one are '744 9BS']
I knocked out the 2 welch plugs and soaked the carb overnight in carb
cleaner.
Cleaned the plastic needle- it looked fine.
Cleaned gas tank [plastic] and replaced gasoline.
After the rebuild I started it up and it ran ok at factory- warmed it
up, adjusted to what sounded real good. . . and waited for snow.
That was only a week ago, but today I couldn't keep it running. Primed
it, and it started fine- but it acted like it wasn't pumping gas. As
soon as the primed gas ran out, it died. Tried adjusting the carb
back to factory- but it wouldn't stay running for more than about 30
seconds. I repeated it often enough to warm the thing up, but it
still won't stay running.
I'll play with it more tomorrow- but I'm wondering if someone has run
across this before.
Because it doesn't seem to be pumping, my first thought is that I put
the diaphragm in wrong, but then why did it run so well last week?
Thanks,
Jim
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Posted by Jim Elbrecht on December 4, 2007, 4:55 pm
On Mon, 3 Dec 2007 19:28:56 -0500, "Stormin Mormon"
>Someetimes the float needle sticks in the seat. Tip the machine on its side,
>take the float bowl off, wiggle the float. Make sure the needle moves.
diaphragm carb- so no float. But I took the thing apart again- the
needle seemed to be moving freely, and sent bubbles back up the gas
line when I worked it. [clear line has an advantage] But still no joy
on running without constant priming.
The carbs are <$50. Probably should have gone with a new one in the
first place.
Jim
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Posted by Frank on December 4, 2007, 5:17 pm
I have a old snowblower with Brigs and Stratton 5.5 eng. The unit has no
primer bulb or button .Problem is in order to start this guy I need to pore
a shot glass of gas in the spark plug hole. Would a carb kit help?
Eng is Brigs #110900
Frank
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Posted by Jim Elbrecht on December 4, 2007, 10:03 pm
wrote:
>I have a old snowblower with Brigs and Stratton 5.5 eng. The unit has no
>primer bulb or button .Problem is in order to start this guy I need to pore
>a shot glass of gas in the spark plug hole. Would a carb kit help?
> Eng is Brigs #110900
> Frank
>
Might help - the carb kits are cheap enough. Or you could end up like
me and spend $12 on a kit- $10 more on cleaner. . . a couple hours
working . . . and then buying a new carb.<g>
For yours the carb is about $65 here-
http://www.psep2.biz/pages/parts/viewbybrand/10/BriggsStratton.aspx
Jim
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