[DML] Re: Crap in fuel pump + normal pump sound?

["Harold McElraft" <hmcelraft@xxxxxxx>]

Your trouble with the decomposed filter screen is common for well 
aged systems that have set in decomposed fuel. Replacing ALL the 
affected components is important for getting the system back to a 
trouble free operation. Sometimes the fuel distributor and injectors 
can be salvaged because the decomposed fuel dried up much sooner 
than the stuff in the fuel tank or components such as the filter and 
accumulator that had larger quantities of fuel trapped in them.

If you have ingested trash through the pump, and it sounds like you 
have, you should replace it. The damage may just leave you stranded 
somewhere down the road. Since some of the trash may have passed on 
downstream I would replace all components, except the lines, from 
the tank filter through the fuel filter - that would include the 
accumulator. I would also recommend a thorough cleaning of the fuel 
lines - like blowing out with air - before replacement of your fuel 
system pieces.

Run some Marvel Mystery Oil through the system for a few tanks to 
finish cleaning out the system. I use it virtually all the time 
since it also acts as a light stabilizer for the fuel.

Harold McElraft - 3354



--- In dmcnews@xxxxxxxxxxxxxxx, "valleyrat12" <valleyrat12@xxxx> 
wrote:
>
> When my pump was hooked up I would jump the RMP relay to get it 
> running and I noticed this: the pump would operate for 10-12 
seconds 
> at a higher pitch (while pressuring up I imagine) then drop 
abruptly 
> to a lower pitch. Is this normal, or should the pump sound be 
> constant, or is 10-12 seconds too long, should it pressure up 
faster? 
> I am thinking this could be related to my starting issue.
> 
> As per my last post the fuel screen for my pump disintegrated and 
was 
> ingested. Is it possible to reverse the pump operation to clean it 
> out, or is there any way to clean it out? Am I better off with a 
new 
> pump? It is a new pump. 
> 
> Nathan
> 2277 apart and sad :-(
>








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