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  #31  
Old 11-10-2012, 02:57 AM
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I second slightly advanced timing especially for anyone running thicker fuel like WMO, WMO, WATF, etc. It may not be an issue for you, Adler, but generally timing becomes retarded after timing chain stretch and that can affect performance.
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  #32  
Old 11-10-2012, 02:58 AM
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Fantastic

Quote:
Originally Posted by Silber Adler View Post
Oh once I changed the spin on filter it wouldn't start. I figured out how to run the primer pump (unscrew the white knob then work it in and out) by hand and with my wife cranking it started within a few seconds.
You are discovering that it is frequently several common issues.
Most are due to lack of maintenance.

Once you get caught up, the maintenance goes to a normal schedule.

.
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  #33  
Old 11-10-2012, 10:44 AM
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I am going to look at the injector timing once I figure out some of this other stuff. The valve adjustment should be pretty straight forward. I was going to make my wrenches but a friend said that he had two sets of factory ones and an extra valve cover gasket. So that is on hold for a bit. It was really helpful to

I have a boost gauge on order from fleabay. Will see what boost I have. If it is low then will address that.

This is a great group.
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  #34  
Old 11-19-2012, 01:42 PM
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I have gotten the valves adjusted. My boost is running at 9psi.

My car has a pretty newish stock type system on it. It barely makes any noise. I was looking at the exhaust system when I was changing the transmission fluid. It comes out of the corrugated section on the down pipe and it is spliced right before the curve and considerably constricted down where it was swedged probably a half inch or more to fit into the head pipe then squished down where it makes the curve. I am guessing that it loses 30% of the cross sectional area within 3-4".

Here is a quote from a different thread which drifted from a post about turbo whine.
Turbo Whine - W123
Quote:
Originally Posted by fordheaded View Post
Some say there's no way it can give you more power, but I feel there was a definite increase. Noise was fun at first but at 70 my eyes started to vibrate. The pipe is 2.5 inches to the rear axle then 3 inches with a downturn at the end. I had to make a resonator to calm it down. Took the same 2.5" pipe and drilled 3/8" holes in it, then covered with 4" pipe fully welded. The pipe is industrial sanitary pipe from the scrap yard, real thin and easy to tig weld. Cheap because it's light. Also 304 S.S.!! Anyway, I installed the resonator where the first stock one would be and much better. Still a little drone but bearable. A very distinctive sound though at 75mph, almost like a giant cicada! Cool. I'll try to post some pics from my phone. Stock exhaust-400-500.$$; scrapyard SS pipe, $35.00.
Fordheaded, has a good idea. I am not interested in a straight pipe but thinking that maybe sending everything back to the muffler through at least a stock head pipe diameter.
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  #35  
Old 11-19-2012, 07:00 PM
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Quote:
Originally Posted by Doktor Bert View Post
Anybody have the drag coefficient of a W116??? I am wondering if 140 is possible with the 2.47:1 swap......I can get 120-125 out of it right now with the 3.07:1 axle @ 5000 rpm.

With the 215/70R14's and 2.47:1 axle, not accounting for converter slippage or other variables, 140 mph would come in at 4500 rpm...
I feel you may not have enough power available to get you up there. Could as easily be wrong though.
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  #36  
Old 11-20-2012, 05:25 PM
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Quote:
Originally Posted by barry12345 View Post
I feel you may not have enough power available to get you up there. Could as easily be wrong though.
I have been thinking the same thing, though I can hit 120 easily enough
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100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership
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  #37  
Old 11-20-2012, 05:46 PM
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I am sure you have seen calculators for this.horse power calculator

and the drag coefficient here:drag coefficient Mercedes-Benz_W126
I'll let you plug in the numbers. May take 175-180 hp.


Quote:
Originally Posted by Doktor Bert View Post
I have been thinking the same thing, though I can hit 120 easily enough
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  #38  
Old 11-20-2012, 06:33 PM
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If you think the exhaust is your limiting factor, disconnect it at the bellhousing and give it another shot. I don't know if anyone suggested linkage slop but see if your getting full thrust on your IP vs accelerator peddle. You gotta break 100mph, make us proud!!!!
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  #39  
Old 11-21-2012, 07:15 PM
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102+

YEAH
I was on the road today and traffic was light. I got on a stretch where I could see a couple miles and wound it up...

I did 102 and was still climbing. It seemed like once it it 100 it went up to 102 pretty quickly. There is more. It does have 201 k miles.

The car was loaded and was shaking a bit. Empty with smoother tires and drivetrain. I have no doubts that there would be more.

Thanks fordheaded for pushing me to do it on a day with lots of patrols.
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85 Merc 300D - Unwinding 31 years of wear
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Mahindra Diesel
Iseki Diesel

In 2007 I didn't own a diesel.
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  #40  
Old 11-22-2012, 01:20 AM
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You're absolutely welcome!!!
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  #41  
Old 01-26-2014, 09:58 PM
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Update please

Curious how things are going on this car ?


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Noise Vibration and Harshness (NVH).
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  #42  
Old 01-26-2014, 10:41 PM
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Hi Hunter,
It's running great, maintenance has settled down. I put a new voltage regulator a couple of months ago.

Been having a bad winter, the tank runs and looks good. I had my eye on a similar wagon. The guy was not interested in selling but then it disappeared, oh well.
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85 Merc 300D - Unwinding 31 years of wear
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Mahindra Diesel
Iseki Diesel

In 2007 I didn't own a diesel.
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  #43  
Old 01-27-2014, 12:10 AM
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Question

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Originally Posted by Silber Adler View Post
Hi Hunter,
It's running great, maintenance has settled down. I put a new voltage regulator a couple of months ago.

Been having a bad winter, the tank runs and looks good. I had my eye on a similar wagon. The guy was not interested in selling but then it disappeared, oh well.
Any further issues from the fuel system ?

.
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Prototype R&D/testing:
Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
Noise Vibration and Harshness (NVH).
Dynamometer.
Heat exchanger durability.
HV-A/C Climate Control.
Prototype Vehicle build.
Prototype Fleet Durability
Prototype vehicle instrumentation.
Technical Quality Auditor.
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1973 300D
1973 309D - stolen
1978 280SE
1980 240D
1983 300D
1984 190D
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  #44  
Old 01-27-2014, 09:50 AM
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Ah, no been doing fine for the past year running-wise.

I do appreciate you asking. I have more free time now so may find myself with new projects.
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86 VW TD
Mahindra Diesel
Iseki Diesel

In 2007 I didn't own a diesel.
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  #45  
Old 01-27-2014, 05:08 PM
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FYI

Quote:
Originally Posted by Silber Adler View Post
Ah, no been doing fine for the past year running-wise.

I do appreciate you asking. I have more free time now so may find myself with new projects.
Call if I can help with the car issues.
PM sent.

Roy

.
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Prototype R&D/testing:
Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
Noise Vibration and Harshness (NVH).
Dynamometer.
Heat exchanger durability.
HV-A/C Climate Control.
Prototype Vehicle build.
Prototype Fleet Durability
Prototype vehicle instrumentation.
Technical Quality Auditor.
Automotive Technical Writer

1973 300D
1973 309D - stolen
1978 280SE
1980 240D
1983 300D
1984 190D
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