Author Topic: 330  (Read 356 times)

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Offline countryhog

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330
« on: August 24, 2015, 09:50:01 am »
I rebuilt a 330 couple years ago- New rings, new boot, plug, lines, carb kit, etc - ran great but now it won't start. Will pop with fuel in the carb but won't pull fuel from tank. Rebuilt carb again including pulling welch plug and insuring the progression ports aren't plugged.
Can't figure out why it won't pull fuel
I'm at a loss without totally tearing this thing down. Really could use the benefit of others' experience with this misogynistic POS or other saws with same problem.
Be advised that I was studiously careful when rebuilding this. It ran well right afterward but after sitting for couple years it won't start. Only ever had non ethanol in it.
I'm resigned to having to take it apart again but dread doing so. only thing I can figure is hole in impulse line. we'll see.
now is never here but the past is always present.
semper fi ya'll

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Offline Cut4fun .

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Re: homelite 330
« Reply #1 on: August 24, 2015, 10:15:54 am »
WAG. Does it stay running with mix as you squirt through carb? Not just pop but keep it running.


homelite 330 ipl   http://www.barrettsmallengine.com/partslist/homelite330ut10598.pdf
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Offline countryhog

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Re: 330
« Reply #2 on: August 24, 2015, 11:39:18 am »
No. Just pops
now is never here but the past is always present.
semper fi ya'll

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Re: 330
« Reply #3 on: August 24, 2015, 11:40:03 am »
If the impulse is good then I would say you need to try a different carb.   
Did you do a pressure test of the crank case by blocking from the back of the carb and back of the muffler.
That would check the intake that way also for an air leak.  I would also do a compression test.
2 years is a good time sitting on a shelf and you never know.
I would check the muffler for any obstructions from bugs.
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Offline countryhog

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Re: 330
« Reply #4 on: August 24, 2015, 02:32:26 pm »
thanks for the input.
haven't done any pressure testing. one of those Neanderthals that doesn't yet have a compression tester. makes diagnoses interesting to say the least.

I just disconnected the impulse line, pulled the engine over, thinking I might feel some vacuum - didn't. course my fingertip is not that well calibrated. however, when I was doing that I saw some fuel in the fuel line. still wouldn't start though.
now is never here but the past is always present.
semper fi ya'll

Offline Cut4fun .

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Re: 330
« Reply #5 on: August 24, 2015, 04:58:00 pm »
I am thinking just pops but wont run when squirting in fuel.  I am thinking spark, coil etc.  Just my WAG. 

I had that echo 3900 coil go bad just setting. Then it started working then it went bad again. 
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Offline countryhog

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Re: 330
« Reply #6 on: August 25, 2015, 09:05:31 am »
i'm gonna start with simple first. gonna try new spark plug just for grins. gotta get a compression tester; compression feels ok when pulling but ya never know.
now is never here but the past is always present.
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Offline Cut4fun .

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Re: 330
« Reply #7 on: August 25, 2015, 10:20:19 am »
Is the plug wet or dry after trying a start session? 
You say not drawing fuel which wouldnt be what I am guessing. But then you say fuel is in the line.  Thats why I am thinking my route.
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Offline countryhog

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Re: 330
« Reply #8 on: August 26, 2015, 08:45:35 am »
good question. i'll check at first opportunity.
now is never here but the past is always present.
semper fi ya'll

Offline farmboy

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Re: 330
« Reply #9 on: August 26, 2015, 10:44:20 pm »
Intake boots are bad to rot/crack.  I've got 2 nice 330's boots are bad on both.
Shep