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| | | | Joined: Dec 2001 Posts: 34 Wrench Fetcher | | Wrench Fetcher Joined: Dec 2001 Posts: 34 | suddenly can't start my 250... if I pour gas down the carb it will start but not otherwise... put a new fuel pump on.... no change any ideas? | | | | | Joined: Jul 2018 Posts: 72 'Bolter | | 'Bolter Joined: Jul 2018 Posts: 72 | | | | | | Joined: Apr 2005 Posts: 7,440 Bolter | | Bolter Joined: Apr 2005 Posts: 7,440 | The quality of fuel pumps is not what it used to be. Test the new one to see if it works. Long rubber hose connected to the pump intake running to a separate fuel source with fresh fuel.
Martin
'62 Chevy C-10 Stepside Shortbed (Restomod in progress)
'47 Chevy 3100 5 Window (long term project)
‘65 Chevy Biscayne (Emily)
‘39 Dodge Business Coupe (Clarence)
“I fought the law and the law won" now I are a retired one!
Support those brave men/women who stand the "Thin Blue Line"! Hug a cop!
USAF 1965-1969 Weather Observation Tech (I got paid to look at the clouds)
| | | | | Joined: May 2005 Posts: 8,983 Sir Searchalot | | Sir Searchalot Joined: May 2005 Posts: 8,983 | Agree with Martin.
If fuel pump is mechanical:
Take center wire off of distributor so it won't start. Run a hose from a good, clean gas can near front tire, on the ground, into pump inlet. Run the pump outlet into a container, like a water bottle. Crank motor. Should see pulsing good flow. If you get a good flow, hook tank hose back up and leave outlet into a bottle. Crank motor. If both test show good flow, it's the carb.
Good flow in these two tests eliminates:
1. Pump
2. Lines
3. Filter
4. Clogged tank pick up
5. Tank not venting
6. Tank gas level too low
Other results of these tests give great clues.
Before pump test, look down carb throat, motor off. Operate throttle, see if gas squirts out inside throat.
Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn
| | | | | Joined: Dec 2001 Posts: 34 Wrench Fetcher | | Wrench Fetcher Joined: Dec 2001 Posts: 34 | Thank you for your kind response I will follow your instructions and see what happens..... I've got a 1966 C10 long bed which is full of holes but I'm hoping to restore it ... once again Thanks | | |
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