200D, 220D, and early 240D tuning guide. - Page 2 - PeachParts Mercedes-Benz Forum

Teemeister · #16 12-02-2006, 07:33 PM

n. t.

#17 12-02-2006, 07:36 PM

No question. Just information for those that may need it in the future.

tompaah7503 · #18 12-29-2008, 08:34 PM

I picked up a nice klappenstutze today at a junkyard, here's some pictures of it for reference.
Pic #1, view from air intake side, at idle
Pic #2, view from air intake side, at half throttle
Pic #3, view from rear, at idle
Pic #4, view from rear, at full throttle

You can see the two flaps in these pictures.
What is not entirely clear to me is what the second flap is supposed to be doing. It is not spring loaded, it opens when the first flap opens but there is no closing mechanism. It just literally flaps around a bit when throttle is released to idle.

Edit: there's also a second thread on this subject, for those interested
615, 616 Pneumatic Governor Adjustment (Translation)

strelnik · #19 12-29-2008, 10:29 PM

Quote:

Originally Posted by R Leo

Paul,
Methinks Abregeldrehzahl may be something that the Google translator made up or more likely, is Deutsch technical jargon (which Altavista seems to be pretty adept at coming up with) for part of the governor and has something to do with governing or controlling the number of revolutions.
Breaking the word apart gives me this:

Regel = rule
Drehzahl = rule number of revolutions

You are close to correct "abegeln" means to regulate or control

A "drehzahl" is a rev counter
"This is the rev counter on the governor," so sprach the Dolmetscher (look that one up).

strelnik · #20 12-29-2008, 10:35 PM

Quote:

Originally Posted by strelnik

You are close to correct "abegeln" means to regulate or control

A "drehzahl" is a rev counter
"This is the rev counter on the governor," so sprach the Dolmetscher (look that one up).

"Eine Klappe" in tech terms is a "flap" or a "throttle plate" or a "poppet valve" like you find in a cheap lawn mower."Stutzen" means to house or hold, so we would say this is a "flap valve/throttle plate housing/assembly"s

vox_incognita · #21 12-30-2008, 08:33 AM

Quote:

Originally Posted by tompaah7503

You can see the two flaps in these pictures.
What is not entirely clear to me is what the second flap is supposed to be doing. It is not spring loaded, it opens when the first flap opens but there is no closing mechanism. It just literally flaps around a bit when throttle is released to idle.

On some occasions the engine would start running backwards,with the exhaust system serving as intake and gasses leaving the cylinders through the air filter...some interesting readings below...
The second flap either kills the engine by holding the exhaust gasses,or gives you the opportunity to do so by the push/pull knob.Earlier 621 series didn`t have the second flap,but the later style intake duct could be installed subsequently.

Mike D · #22 12-30-2008, 09:37 AM

papillon= butterfly, French. mariposa=butterfly, Spanish