Ron, good words! Especially about the confidence in the system remarks.
I know there has been talk of the pump being heat soaked from the
muffler or tail pipe when at slow speeds. On muy old Mk I the distance
from the pump to the exuhaust pipe is a fair distance. HAs anyone
actually measured the heat from the exhaust system in the area of the
pump? Could it be that what ever pump is bieng used is just not getting
enough cooling to meet mfg spec? The original area where the pump is
mounted quite a hole. And the Holley pumps are continous operation are
they not, with a built in pressure regulator. So if it is running
continously with out a good solid steady airflow that may be the
culprit. I am planning on installing something like that on my car and
I now have one of thoise kind that is a pulse type solid state
aftermaket unit that runs continously...drives me crazy. The original
was a pulsed unit as I recall. Pumped only when needed type of
arrangement and maybe thats why they hardly ever overheated at least in
my case. In any case, good info here on this topic!
mayf, way off and far out in pahrump
Ron Fraser wrote:
>Steve
> If the pump springs a leak; I would think you would smell it unless
>you are going very fast in which case you will slow down soon due to lack of
>fuel. I'm not sure what your concern with the battery is; you should not
>be generating any sparks at the battery and if you are something is very
>wrong.
>
> Every problem dealing with our cars can have many solutions and
>every solution is going to be a compromise of some sort. I thought that
>the fuel pump over the muffler was just an accident waiting to happen and
>seeing fuel stains on the muffler was very concerning. I never saw the
>pump leak or even be wet but I think just the heat cycles alone can cause
>problems with the pump and the fittings and lets not forget about possible
>vapor lock.
>
> The main point here is you have to have total confidence in any
>solution you put on your car. You have to have total confidence in the
>safety and reliability of the solution and total confidence in the
>installment workmanship. If one solution leaves you scratching your head
>and you have doubts; DO Not Proceed, Stop and re-think what you want to do
>and how you want to accomplish it. Safety has to be everyone's main
>concern.
>
> A heat shield for the fuel pump is a great idea. I think I would
>try mounting it from the fuel pump bracket.
>I would also do some experiments to map how hot the fuel pump actually gets
>and how quickly it cools down; without and then with the heat shield in
>place. I would want to know, not guess or assume, that the heat shield is
>making a difference.
>
>Ron Fraser
>
>-----Original Message-----
>From: owner-tigers@Autox.Team.Net [mailto:owner-tigers@Autox.Team.Net] On
>Behalf Of Steve Sage
>Sent: Saturday, January 27, 2007 3:12 PM
>To: Ron Fraser
>Cc: 'Ronak, TP (Timothy)'; 'Tiger News Group List'
>Subject: Re: Heat Shields
>
>
> Ron Fraser wrote:
>
>
>
>>Tim
>> I moved the fuel pump to the trunk similar to the MKII.
>>
>>Ron Fraser
>>
>>-
>>
>>
>>
>Ron:
>I've thought of that too but have been uncomfortable about what if a
>pump springs a leak there? Raw gasoline and a battery in the same trunk
>don't sound like the best idea. How is that issue addressed?
>
>Steve Sage
>
>
>--
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>5:02 PM
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