no vacum to fuel pump

honkytonk13 · 07-17-2011, 09:42 PM

i have clean carbs,good fuel,but when i take off the gas line to the carb an crank it there is no gas flow,the pump is good,but no vacum going to it from motor.

shadowman · 07-18-2011, 08:09 AM

welcome to BGW, have you cranked engine with hose off to see if it spits anything from engine? have you tried cleaning it there? and how did you determine fuel pump is good?................................

honkytonk13 · 07-18-2011, 08:26 AM

YES,i took vacum line off and there is no vacum at all.I never worked on a golf cart before but have experiance with a lot of 2 stroke motors,the fuel pump i took off-cleaned out,the diaframs looked good and you can hear it working when i put vacum on it. sure thank you for your help.

DOOmsman · 07-18-2011, 10:02 AM

you can hear it working when i put vacum on it. sure thank you for your help
The pump works on pulses (push pull). What are you hearing?

honkytonk13 · 07-18-2011, 10:42 AM

yea,but im not getting that pulse,push pull out of the vacum line,and what im hearing is when im putting a long peice of hose on the fuel pump an working it with my mouth,it will squirt gas like it is suppose to,but im just not getting the vacum out of the motor.also i checked to see if the hose was clogged and it was free flow in or out by mouth.

DOOmsman · 07-18-2011, 11:04 AM

Time for a compression test.

shadowman · 07-18-2011, 03:40 PM

Quote:

Originally Posted by DOOmsman

Time for a compression test.

have to agree .......that was next suggestion..........................

crash12888 · 07-18-2011, 05:17 PM

Even low compression should show a little something.

What motor are you working on?
Some Club Cars have a rubber plug in the back of the block under S/G that is used for an oil fill tube on other applications.
Check to see if it is gone, they do get brittle and fall/blow out when old.

tpg · 07-18-2011, 06:22 PM

Possible side crankcase gasket blown out

honkytonk13 · 07-18-2011, 09:48 PM

I really appericate your help and I will check that tomorrow and I will let you know what happens......Thank you very much

07-17-2011, 09:42 PM	#1
honkytonk13 Not Yet Wild Join Date: Jul 2011 Posts: 47	no vacum to fuel pump i have clean carbs,good fuel,but when i take off the gas line to the carb an crank it there is no gas flow,the pump is good,but no vacum going to it from motor.
honkytonk13 Not Yet Wild Join Date: Jul 2011 Posts: 47

07-18-2011, 08:09 AM	#2
shadowman The Last Moja Morani Join Date: Jan 2007 Location: jumping from cart to cart Posts: 8,975	Re: no vacum to fuel pump welcome to BGW, have you cranked engine with hose off to see if it spits anything from engine? have you tried cleaning it there? and how did you determine fuel pump is good?................................

07-18-2011, 08:26 AM	#3
honkytonk13 Not Yet Wild Join Date: Jul 2011 Posts: 47	Re: no vacum to fuel pump YES,i took vacum line off and there is no vacum at all.I never worked on a golf cart before but have experiance with a lot of 2 stroke motors,the fuel pump i took off-cleaned out,the diaframs looked good and you can hear it working when i put vacum on it. sure thank you for your help.
honkytonk13 Not Yet Wild Join Date: Jul 2011 Posts: 47

07-18-2011, 10:02 AM	#4
DOOmsman Gone Wild Join Date: Jul 2008 Location: Reddick IL Posts: 11,220	Re: no vacum to fuel pump you can hear it working when i put vacum on it. sure thank you for your help The pump works on pulses (push pull). What are you hearing?

07-18-2011, 10:42 AM	#5
honkytonk13 Not Yet Wild Join Date: Jul 2011 Posts: 47	Re: no vacum to fuel pump yea,but im not getting that pulse,push pull out of the vacum line,and what im hearing is when im putting a long peice of hose on the fuel pump an working it with my mouth,it will squirt gas like it is suppose to,but im just not getting the vacum out of the motor.also i checked to see if the hose was clogged and it was free flow in or out by mouth.
honkytonk13 Not Yet Wild Join Date: Jul 2011 Posts: 47

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07-18-2011, 11:04 AM	#6
DOOmsman Gone Wild Join Date: Jul 2008 Location: Reddick IL Posts: 11,220	Re: no vacum to fuel pump Time for a compression test.

07-18-2011, 05:17 PM	#8
crash12888 Gone Crazy Join Date: Jan 2007 Location: Chesterfield, Va Posts: 6,021	Re: no vacum to fuel pump Even low compression should show a little something. What motor are you working on? Some Club Cars have a rubber plug in the back of the block under S/G that is used for an oil fill tube on other applications. Check to see if it is gone, they do get brittle and fall/blow out when old.

07-18-2011, 06:22 PM	#9
tpg Gone Wild Join Date: Dec 2007 Location: SE Indiana Posts: 392	Re: no vacum to fuel pump Possible side crankcase gasket blown out

07-18-2011, 09:48 PM	#10
honkytonk13 Not Yet Wild Join Date: Jul 2011 Posts: 47	Re: no vacum to fuel pump I really appericate your help and I will check that tomorrow and I will let you know what happens......Thank you very much
honkytonk13 Not Yet Wild Join Date: Jul 2011 Posts: 47

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