[Spits] Fuel pump installation

[Thomas P. (home) Penno]

Where did you get the fuel pump regulator?

Thanks
Tom Penn0
77 Spitfire


On 7/16/12 8:47 PM, "Dave Simpson" <dr_simpson at live.com> wrote:

>Nick
>
>General lack of power, excessive gas  consumption.  To be sure I removed
>the
>air cleaner and saw gas squirting out the secondary while at idle
>
>
>David R Simpson
>
>
>
>
>From: nmoseley at telus.net
>To: dr_simpson at live.com
>Subject: RE: [Spits] Fuel pump installation
>Date: Mon, 16 Jul 2012 11:30:09 -0700
>
>
>
>
>
>Thanks Dave. I pick up another new pump today, and will give it another
>whirl.
>What were the symptoms of the pressure being too high, so I know what to
>look
>for?
>Many thanks
>Nick Moseley
>
>
>
>
>From: Dave Simpson [mailto:dr_simpson at live.com]
>Sent: Monday, July 16, 2012 5:41 AM
>To: nmoseley at telus.net
>Subject: RE: [Spits] Fuel pump installation
>
>
>Nick
>
> I had the same issue with a 76, If you are unsure if the pump arm is
>over the
>cam try roataing the motor.  This could give you more clearance.  I
>talked to
>some mechanics and this is not uncommon it seems "hit & miss".  I think
>it has
>to do with the  cam position.  I did not think these "new" stlye pumps are
>exact replacements.  They also pump at a higher pressure I had to install
>a
>fuel pressure regulator after replaceing the second mechanical pump and I
>have
>a downdraft weber.
>
> good Luck
>
>David R Simpson
>76 Spitfire
>Lafayette LA
>
>
>> From: nmoseley at telus.net
>> To: nass at yahoogroups.com; Spitfires at autox.team.net
>> Date: Sun, 15 Jul 2012 16:29:23 -0700
>> Subject: [Spits] Fuel pump installation
>>
>> Sorry for the cross-post.
>>
>> My question is how does one install the arm of a fuel pump in a later
>>Spit?
>>
>> I have an 80 Spit in which I installed a new fuel pump. This is the pump
>> designated for the later cars (78 and later), along with a spacer block,
>> which was duly installed.
>>
>> Haynes manual says to be sure to place the arm such that it "lies on
>>top of
>> the camshaft eccentric and not underneath it". I took that to mean the
>>arm
>> has to be threaded into the hole in the block until it makes contact
>>with
>> the cam, and then the pump can be returned to it correct vertical
>>position
>> and installed against the block. (This means that the studs have to
>>removed
>> from the block in order to manipulate the pump this way to get the arm
>>into
>> that position).
>>
>> Put another way, this means the arm is running on the "outside" of the
>>cam
>> (so between the cam and the wall of the block), and no part of it runs
>> underneath the cam.
>>
>> The arm of the new pump broke.
>>
>> Did I have it installed correctly but it was a bad part, or should I
>>have
>> acted counter to Haynes, and had the arm run on the "inside" of the cam?
>>
>> I've re-installed the old pump, which has a different style arm, and
>>will
>> order a new pump, but would like to be sure I am installing it the
>>correct
>> way before risking another $50 pump.
>>
>>
>>
>> Many thanks
>>
>>
>>
>> Nick Moseley
>>
>>
>>
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