[diesel_mercedes] Re: 86 300SDL poor initial acceleration

 

Yes, can use bio or petro diesel interchangeably or in combination.

--- In diesel_mercedes@yahoogroups.com, tom hanson <halfviking@...> wrote:
>
> A few things to look for that may or may not be the cause, but can cause similar
> issues are all the vacuum rubber connectors, plastic vacuum tubing, and
> the changeover valve. Also look at the charge lines. A question from me now,
> can you switch back to pump diesel while using bio diesel?
>  Tom Hanson
> Mercedes Benz Classic Center USA
> MBUSA, LLC
> thomas.hanson@...
> 949 598-4842 direct
> 949 598-4870 fax
>
>
>
>
> ________________________________
> From: professormobesser <professormobesser@...>
> To: diesel_mercedes@yahoogroups.com
> Sent: Tue, July 12, 2011 5:34:06 PM
> Subject: [diesel_mercedes] 86 300SDL poor initial acceleration
>
>  
> I've had a recurrent problem with my 86 300SDL. It has about 310K on the engine.
> The initial acceleration can be very sluggish; rpm won't go above about 1500,
> even when I floor the accelerator, and the car just crawls until it starts to
> get above 10 or 15mph. Once I get above 15 or 20 mph, rpm will ramp up normally,
> kicking up above 3000 rpm or more before shifting to the next gear, and
> acceleration is fine. But initial acceleration, especially when starting up a
> hill from a stop, can be almost nil. My mechanic had the fuel injector pump
> rebuilt; that cured the problem for a while. Now the problem has returned. It
> seems worse when the engine is cold or when operating at higher altitudes; at
> 6000 feet above sea level, even after a long drive and a fully warmed-up engine,
> the car just wouldn't start up a steep hill from a stop. The engine ran; just no
> acceleration. I run my 300SDL on B99 biodiesel in summer and B50 in winter. Any
> ideas?
>

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