'First thing I did to my 123's and 126 when I got 'em home was to remove
that stiff coil spring in the "throttle" linage immediately behind the
engine that made the accelerator operation really stiff. Yeah, yeah, I
know, if MB engineers hadn't thought it was necessary, they wouldn't have
put it there. I think I have 3 little-used ones (one brand new) down in
basement somewhere. 'Only difference I can tell for the last 34 years is
that it's been a lot easier on my right leg. 'Didn't notice the stiffness
problem on the 124. Thinking about it more; not sure the 126 had one.
Wilton
----- Original Message -----
From: "OK Don" <okd...@gmail.com>
To: "Mercedes Discussion List" <mercedes@okiebenz.com>
Sent: Saturday, July 13, 2013 4:41 PM
Subject: Re: [MBZ] 240D success!
ATTABOY!!! This is a manual tranny car isn't it? If so, the spring loaded
thing in the accelerator linkage is to help prevent bunny hops when
starting from a dead stop - usually a problem for those not accomplished
at
driving a standard, IIRC.
On Sat, Jul 13, 2013 at 3:15 PM, Curt Raymond <curtlud...@yahoo.com>
wrote:
So I've been keeping quiet about this because I didn't want to jinx
myself
but last weekend I retorqued the head bolts on my '78 240D. You'll
remember
thats the one where the exhaust was blowing the coolant back out of the
engine. Some of the bolts were still tight but some needed a little more,
some needed as much as 1/8 turn.
With them all tightened to spec the engine seems content to keep the wet
stuff inside where it belongs. I drove it a few miles to prove that
worked
and then parked it, the engine seemed to idle rough cold and some valves
tapped threateningly.
Today I tried adjusting the valves, I'll not try that again until I get a
proper set of wrenches... I found the intakes all slightly loose (0.13mm)
except for one that was perfect. The exhausts were all slightly tight
(0.25-0.28mm). Considering the rough adjustment I was capable of I
decided
I'd loosen the tight exhaust valves and leave the loose intakes where
they
were, even then the adjustment took me right on 2 hours, most of that was
farting around not knowing what I was doing.
Apparently the tight exhaust valves were the cause of my noise as its
gone
but the car still seems under powered even for a 240D. I took it for a 20
mile run at speeds up to 60mph with the AC blowing ice cold most of the
time except when I didn't have power to climb hills. By the time I got
home
it was definitely running better and had more power but still not enough.
When Angie got home I had her work the pedal while I observed the
linkage.
This car has a spring thing in the linkage from the pedal which I don't
understand the point of. I guess its to stop from forcing a linkage thats
stuck. Anyway it appears to have lost its sproing because it wasn't
pushing
the linkage sufficiently. With the pedal on the floor we were only
getting
about 1/2 travel to the stop, I suppose that explains why the car always
felt down on power. I put a hose clamp on the moving bit so it can't move
and that got about 1/2 the missing travel back. Then I found a pivot
point
that also levers out in the wrong direction. I guess it needs a new
bushing. With no new bushing to put in but lots of pedal travel that
doesn't do anything (the first 1/8 of travel accomplishes nothing) I
adjusted the other linkages so that now the lever at the IP goes all the
way to the stop. I've yet to make a test run but it seems like a
reasonable
idea...
Anyway it looks like the Phoenix is rising once again.
-Curt
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--
OK Don
2013 F150, 19 mpg
2012 Passat TDI DSG, 45 mpg
1957 C182A, 12 mpg - but at 150 mph!
_______________________________________
http://www.okiebenz.com
For new and used parts go to www.okiebenz.com
To search list archives http://www.okiebenz.com/archive/
To Unsubscribe or change delivery options go to:
http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
_______________________________________
http://www.okiebenz.com
For new and used parts go to www.okiebenz.com
To search list archives http://www.okiebenz.com/archive/
To Unsubscribe or change delivery options go to:
http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
