Re: hot start MB problem

[C1J1Miller@aol.com]

In a message dated 11/17/97 9:17:05 PM, you wrote:

>You wrote:
>> 
>>> Mine is becoming very hard to start if it's parked more than an hour 
>>> with the engine _HOT_.  No problem if it's cold, or if it's 'just warm'
>>> from taking 'er indoors to work.  But if I do a hot run and 
>>> park it for an hour, it's a real sod to get it going again.
>
>> Seems like the injector cooling fan isn't running (if there is one fitted,
>> that is).
>
>Yes, has to be the favourite.  Even when it starts it only runs on two 
>pots for the first few seconds.  Grounding the connector runs the fan, but I

>haven't heard it run on its own for ages. I've now got the thermoswitch 
>suspended in a fan oven with leads coming out to a multi-meter -it still 
>switches, but I think at a much higher point than the specification 85C.
>
>I'll try replacing it.

Phil:
Another possibility would be the fuel pressure accumulator.  As I understand
it, this is a can with a spring and rubber diaphram that hold residual fuel
pressure in the system after shut down (maybe 50 pounds).  A pressurized
liquid boils at higher temperatures under pressure, thus minimizing vapor
lock on a hot engine.  If the diaphram leaks, it will hold less pressure, and
allow fuel vaporization when hot.

I also assume you have checked the injector o-rings for air leaks.

HTH, Chris Miller, Windham NH, c1j1miller@aol.com