Diesel RVs: 09/30/15

Re: [diesel_mercedes] Valve adjustment on a 300TD 1980

I did a valve adjustment on my 300TD earlier this year.

Either two or three of the ten were tight.

I can't remember now.

Before that was 3 years ago.

Maybe 4 were tight then.

Still . . . it made some difference.

The OM617 in my jeep was another story.

Did them 2 months ago.

At least half were tight.

Made a real difference.

By the way . . . When I first put that engine in my jeep last year it would surge and rock at idle and would almost certainly die several times before it warmed up. Now (after 6 months, a few Italian tune-ups, and several thousand miles) it starts pretty well and the rocking and surging is gone at cold idle. It's surprising. As if using it has healed it.

Comments?

Bogy.

"Hardware eventually fails. Software eventually works" - Michael Hartung

From: "Lawrence Rhodes primobassoon@sbcglobal.net [diesel_mercedes]" <diesel_mercedes@yahoogroups.com>
To: "diesel_mercedes@yahoogroups.com" <diesel_mercedes@yahoogroups.com>
Sent: Wednesday, September 30, 2015 9:11 PM
Subject: [diesel_mercedes] Valve adjustment on a 300TD 1980

I've gone 40 thousand miles since my last valve adjustment. The last time I checked the adjustment was still good. Has anyone else experienced a not tight situation? Isn't the clearance supposed to shrink after 20k? I usually adjust on the slightly loose side. On my other 240 D's they always tightened up where I couldn't get the feeler gauge in.. Lawrence Rhodes

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Posted by: Bogy Wan Kenobi <polespearbogy@yahoo.com>

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[diesel_mercedes] Valve adjustment on a 300TD 1980

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Posted by: Lawrence Rhodes <primobassoon@sbcglobal.net>

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[diesel_mercedes] Tranny ' Flaring '

There was much written about this a while ago ;

It seems to mostly do with the amount of vacuum reaching the tranny as you're driving .

The ideal (as I understand it) is to have maxumum vacuum @ idle and it should drop as you accellerate , reaching zero vacuum @ WOT .

I found that replacing all those little rubber hose bits and ' Y ' connectors helped a lot , then I replaced the plastic ' switchover valves ' on the top of the rockerbox , that really seemed to do the trick .

There's also a modulator adjustment done under the car after cleaning off a bunch of crud , doing this one is sensitive as you firm up the shift at the same time raising the RPM point of shiting....

Have you yet done a basic tranny service including draining and re filling both the tranny and the torque converter ? plus replacing the tranny's filter ? .

Gotta do all the basics before touching the tranny .

Depending on where you're located , getting a nice W126 interior shouldn't be difficult , there's basically two styles so once you match the colors you're good to go .

-Nate
Al wrote :

sounds great. I recently purchased a 265,000 mi 85 300SD. Starts good runs good interior is something of a mess and I have to rework the rear windows so that they operate. They are both disconnected internally. A winter job. That and a brake job. My main problem is that the engine revs unduly at the shifts. I think there is a relatively simple remedy for this but I can't remember what it is . Can anyone help?