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motor wont suck fuel - 12/9/2012 5:14 AM   
jvdd


 

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From: Canberra, AUSTRALIA
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Hi Guy's

I've got this Zenoah 26 that wont prime up with fuel.
It is a new motor and originally had a 644 with primer bulb.

With this Carbie it will start as the bulb has primed with fuel
but once the carbie has run out it will stop. The iso block had a nipple for
a water pume but was blocked off so thinking that that was the problem I changed it for a new one,
but the problem still persisted so I swaped out the carbie for a new one (no bulb) and still no fuel.
I then replaced the gaskets with new teflon ones and still no difference.

I put this carbie on another motor and all works fine.

I'm stumped what could be the problem as it seem to be just with this motor.

jim
 



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RE: motor wont suck fuel - 12/9/2012 6:15 AM   
Ron Olson



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Status: offline 		I'm thinking that the isolator block is on upside-down. Been there.

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RE: motor wont suck fuel - 12/9/2012 6:19 AM   
tapkoote


 

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Status: offline 		did it ever start? 

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RE: motor wont suck fuel - 12/9/2012 6:56 AM   
mistycreekboats


 

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From: Prince George, BC, BC, CANADA
Status: offline 		I think plugged vent or fuel filter / tank  issues - cut in fuel line - pinched or pluged - change the hose out and check the vent

JMO


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RE: motor wont suck fuel - 12/9/2012 7:35 PM   
Jackal1983


 

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From: Preston, UNITED KINGDOM
Status: offline 		Id take the carb block off and check you have have the pulse hole in the corect position and none of the gaskets are covering the pulse holes.
Does the motor have Compression? If the piston had a hole in it you wouldnt have fuel or compresstion and will never run in a million years!


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RE: motor wont suck fuel - 12/9/2012 7:53 PM   
tapkoote


 

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Status: offline 		I'd guess a warped iso block to the carb. 

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RE: motor wont suck fuel - 12/11/2012 2:22 AM   
jvdd


 

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From: Canberra, AUSTRALIA
Status: offline 		Hi Guy's

Thanks for getting back to me, I will take these suggestions onboard and check the motor and get back to you when I find out more.
jim

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RE: motor wont suck fuel - 12/15/2012 3:52 AM   
wetsleeves


 

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From: Illawarra, AUSTRALIA
Status: offline 		maybe the pulse hole has a blockage in it, casting or somthing similiar

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RE: motor wont suck fuel - 12/15/2012 4:11 AM   
jvdd


 

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From: Canberra, AUSTRALIA
Status: offline 		I found it


I think someone got over excited with the drill and tap,
a small bolt should fix it.

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RE: motor wont suck fuel - 12/15/2012 4:27 AM   
Ron Olson



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Status: offline 		Yeah, that'll really lower your compression!
Somebody got a tad overzealous also thinking that longer bolts are better than short ones, i.e., the ones going through the isolator block.

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RE: motor wont suck fuel - 12/15/2012 6:59 AM   
The Ghost



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From: UlladullaNSW, AUSTRALIA
Status: offline 		That sucks. Some one used it for a pump port (water/fuel)

Cheers

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RE: motor wont suck fuel - 12/15/2012 5:42 PM   
Jackal1983


 

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From: Preston, UNITED KINGDOM
Status: offline 		Yer... Id go with Ghost... that no accident!!! someone has done that to get a pulse line!!! very very odd place to put it tho!!!lol


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RE: motor wont suck fuel - 12/15/2012 10:11 PM   
jvdd


 

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From: Canberra, AUSTRALIA
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Yeh as the original iso block had a nipple drilled into it also.....2 for 1 maybe
jim
 



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