Re: [diesel_mercedes] 86 300SDL poor initial acceleration

 

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@mbusa.com
949 598-4842 direct
949 598-4870 fax

---

From: professormobesser <professormobesser@yahoo.com>
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?

__._,_.___

Reply to sender | Reply to group | Reply via web post | Start a New Topic

Messages in this topic (3)

Recent Activity:

• New Members 2

Visit Your Group

Switch to: Text-Only, Daily Digest • Unsubscribe • Terms of Use

.

__,_._,___