Hi, Herb.
First off, put some grease or paint on the area where the pump arm
contacts the cam lobe that pushes it up and down, and make sure it is
making contact. Otherwise, it won't pump at all. Then put some clay
underneath the arm inside the pump housing, install the pump, and crank
the engine a few turns. Then pull the pump again, and see if the arm is
moving up and down. If not, the lobe is probably worn off the cam, or
the eccentric disk that bolts to the end of the cam is loose. See if
that helps.
Jay Travis
Brown, Herb wrote:
> Trying to start my 45 Jeep for the first time -- almost 6 years since I
> started working on it. I have been working through a few problems, like
> starter wouldn't turn over and no spark. These problems have been resolved
> none-by-one, but I am now left with a fuel pump that won't pump.
>
> History: Near as I can tell, my jeep hadn't been started for approximately
> 5 to 10 years before I got it and then for the 6 years I have had it.
> Therefore, I assumed the pump was bad and got a replacement pump at last
> year's MV rally at Aberdeen, MD. This is the one without the primer hand
> pump.
>
> Symptoms: I do not get any suction on the input nor pressure on the output
> side when I crank the engine. Tried with both the old and new pumps.
> However, when I remove the pumps (both) and push the pump lever up and down,
> I can feel suction and pressure on the respective I/O ports. It feels like
> the pump lever is preloaded in the up position against the cam when I
> install the pump on the engine.
>
> Questions: Have any of you experienced this problem? Is it possible that I
> have the wrong pump? (Note, both the old one and the new one look identical,
> and there was enough crud on the old one to imply that it had worked at some
> time.) Should there be a spacer between the block and the pump (in addition
> the thin gasket) to permit more travel on the pump lever? My next steps
> include taking the old pump apart to see if I can see anything wrong. Any
> advice as to what to look for?
>
> Please help! This was the second time that the whole family got out to
> watch my failed attempt. Each time we have had to put the "bottle of
> bubbly" back in the refrigerator - I guy could get very thirsty if this
> continues!
>
> Thanks, Herb
>
> ****************************************************************************
> *****************
> Herbert R. Brown
> Institute for Defense Analyses TEL: 703-845-6663
> 1801 N. Beauregard St. FAX: 703-845-6788
> Alexandria, AV 22311-1772 e-mail:
> hbrown@ida.org
> ****************************************************************************
> *****************
>
>
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This archive was generated by hypermail 2b29 : Tue May 01 2001 - 07:42:39 PDT