Re: [DMCForum] Hotstart (New accumulator and pump
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Re: [DMCForum] Hotstart (New accumulator and pump



The new accumulator came with the car. I think the owner got it from
houston. The engine already runs fast (~1500 rpm) and has some vacuum
lines disconnected under the intake. I need to get that fixed also.

Samuel

John Hervey wrote:

>Samuel,
>If you got the accumulator from me there should be a what I call Hot Start 2
>kit with it. It's the O ring s that go in the fuel distributor primary
>pressure regulator where it can leak down also. If that has been replaced
>and it still won't start hot, then I would enrich the 02 setting just a
>hair.
>John
>
>
>  -----Original Message-----
>  From: Samuel [mailto:samuel_yahoo@xxxxxxxxxxxxx]
>  Sent: Sunday, March 07, 2004 2:24 PM
>  To: dmcforum@xxxxxxxxxxxxxxx
>  Subject: [DMCForum] Hotstart (New accumulator and pump
>
>
>  I was having a hot start problem, the accumulator was known to be bad so
>  it was replaced. The hotstart persisted so the check valve on the pump
>  was also replaced. I still have a hot start issue and dont want to
>  guess. No matter how long I crank, it wont start, it has to cool for
>  about 2 hours. Doing a plug swap does not allow it to start, and did not
>  allow it to start since I've had the problem. It should be noted, the
>  hot start came with the car, it didnt show up recently.
>
>  I put a pressure tester on the system, as the tech manual shows on page
>  62. After running the engine and letting it warm up (about 30 minutes of
>  running), the valve was closed to the line from the pressure regulator
>  (so the guage shows pressure at the top of the distributor) and the
>  engine turned off. The pressure dropped down to ~3.5 bar, then after
>  about 10 minutes settled around 2.9 bar. I have managed to confuse
>  myself as to what I am measuring. I am unsure if i'm measuring the
>  control pressure, or the primary pressure.
>
>  If I am measuring the primary pressure, then that would mean the
>  accumulator and check valve in the pump are good, so my hotstart is from
>  something else (note, my distributor has been messed with in the past).
>  If I am measuring the control pressure, then how do I measure the
>  primary pressure (turn guage around? Thought that would measure pressure
>  back to the tank).
>
>  Samuel
>
>
>
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