Go Back   The Ford Barn > General Discussion > Early V8 (1932-53)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 04-15-2021, 06:33 PM   #21
cas3
Senior Member
 
Join Date: Jan 2011
Location: sw minnesota
Posts: 2,780
Default Re: Bench test Vacuum on fuel pump

When you buy a new pump at the store, they sometimes come with instructions stating that you should not move the arm by hand, as you may push too far and damage the diaphragm. Keep in mind that in use, on the motor, the arm really does not move very far. So me, being the kind that reads the directions after I screwed something up, would always pump the lever by hand with a finger over the inlet and you definitely should feel it suck. did you try that?
cas3 is offline   Reply With Quote
Old 04-15-2021, 06:56 PM   #22
AnthonyG
Senior Member
 
AnthonyG's Avatar
 
Join Date: May 2013
Location: Pa.
Posts: 1,880
Default Re: Bench test Vacuum on fuel pump

Cad3 this is post #12
“Question Re: Bench test Vacuum on fuel pump
My bad, loose nut behind the controls. As said never had one act up so never had to test. In worrying about maniac’ing the sheet metal cylindrical perch I did not put enough pressure on the actuator as it moved about 1/2” pretty easy. When I watched the pump rod cycle it didn’t look Look like more than a 1/2 “ stroke. Per 40cpe secured by carefully putting it in a vice wrapped in a towel not to damage & was secure enough to push actuator arm further than before, got good readings both vacuum & pressure on gauge.

__________________
__________________
Nomad
AnthonyG is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 04-15-2021, 07:19 PM   #23
ford38v8
Senior Member
 
ford38v8's Avatar
 
Join Date: Jul 2011
Location: SF Bay Area
Posts: 5,531
Default Re: Bench test Vacuum on fuel pump

Funny story... Back in the day, replacing a brand X fuel pump, had it off and pushed the lever down. Nothing happened till I looked it straight in the outlet and released the lever. Oh, boy. It's funny now, but I wasn't laughing then!
__________________
Alan
ford38v8 is offline   Reply With Quote
Old 04-16-2021, 06:05 PM   #24
AnthonyG
Senior Member
 
AnthonyG's Avatar
 
Join Date: May 2013
Location: Pa.
Posts: 1,880
Default Re: Bench test Vacuum on fuel pump

All good, engine getting fuel & sounds great!
Thx again all!
__________________
Nomad

Last edited by AnthonyG; 04-16-2021 at 06:12 PM.
AnthonyG is offline   Reply With Quote
Old 04-16-2021, 06:19 PM   #25
ford38v8
Senior Member
 
ford38v8's Avatar
 
Join Date: Jul 2011
Location: SF Bay Area
Posts: 5,531
Default Re: Bench test Vacuum on fuel pump

Anthony, tell us how you solved your problem.
__________________
Alan
ford38v8 is offline   Reply With Quote
Old 04-16-2021, 07:14 PM   #26
AnthonyG
Senior Member
 
AnthonyG's Avatar
 
Join Date: May 2013
Location: Pa.
Posts: 1,880
Default Re: Bench test Vacuum on fuel pump

Sponsored Links (Register now to hide all advertisements)
Deleted, inadvertent repeat.
__________________
Nomad

Last edited by AnthonyG; 04-19-2021 at 04:27 PM.
AnthonyG is offline   Reply With Quote
Old 04-17-2021, 07:28 AM   #27
AnthonyG
Senior Member
 
AnthonyG's Avatar
 
Join Date: May 2013
Location: Pa.
Posts: 1,880
Default Re: Bench test Vacuum on fuel pump

Quote:
Originally Posted by ford38v8 View Post
Anthony, tell us how you solved your problem.
I believe there might not have been a problem with the pump. Once I realized from tips here on FB that I wasn’t putting enough pressure on the pump arm in initial pump bench test & when I did it showed good vacuum & Pressure on my gauge.the first install that caused me to question the pump was probably the rod not seated on pump arm as Allen suggested. But thinking the bowl wasn’t sealed because I had taken the bowl off & re-installed after in position ( PIA ) to access mounting hardware in cramped quarters. I changed install sequence trying to make it less of a PIA by putting the stand in position first then seeing the rod thru the side mount hole in the stand was able to insure the arm seated in the cylindrical containment seat & was engaged correctly before installing pump mounting hardware.
__________________
Nomad
AnthonyG is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 03:26 AM.