Sight unseen w108 purchase - Page 10 - Mercedes-Benz Forum

Reply
 
LinkBack Thread Tools Display Modes
post #91 of 137 (permalink) Old 06-15-2015, 10:35 AM
BenzWorld Member
 
Kaelor's Avatar
 
Date registered: Apr 2015
Vehicle: 1970 W115 200/8
Location: Lima, Perú
Posts: 194
Mentioned: 1 Post(s)
Quoted: 24 Post(s)
You should use some coca-cola (coke) and aluminium foil to remove those rust spots. The chrome polish won't remove them by itself, believe I've tried. either some coke or some vinegar, but you have to rinse it well after. You could also use some of those rust remover products. just make sure you don't sand those parts or don't scratch them too bad or it will stay like that forever!! Ok I might be exagerating but try not to scratch it cuz then it's a pain to buff it.
Kaelor is offline  
Sponsored Links
Advertisement
 
post #92 of 137 (permalink) Old 06-22-2015, 03:12 PM Thread Starter
w108,107 Parts Hoarder
 
Fonzi's Avatar
 
Date registered: Jun 2010
Vehicle: 4Keep:450slc5.0cab 280sl5sp 280se4.5 500seAMG 2sell:500sl92 380se83 300se86 350sl4sp 75slc MorInSig
Location: Philadelphia Area
Posts: 18,736
Mentioned: 27 Post(s)
Quoted: 1617 Post(s)
Lifetime Premium Member
Garage
(Thread Starter)
Sight unseen w108 purchase

I know I'm on the slow boat on this project car, but I finally bought some sunroof lube, and decided to test the more economical BMW sunroof lube on this economy w108.

20g (~3/4 oz) of BMW lube: $8.74
1/2 ounce MB Lube: ~$16 delivered
1 ounce MB lube: ~$26 delivered

I will report how it goes.

Edit: next small step is to get it into the driveway and get the 205/75/14 whitewalls on 5.5 steel wheels on it and start cleaning up the paint, rust, and start my way I to diagnosing the smoking.

.

My signature:
Click for list of my 32 MB since 2010. If, you want 70's-80's Mercedes tuner wheels, let me know.
Fonzi is offline  
post #93 of 137 (permalink) Old 06-23-2015, 02:18 AM Thread Starter
w108,107 Parts Hoarder
 
Fonzi's Avatar
 
Date registered: Jun 2010
Vehicle: 4Keep:450slc5.0cab 280sl5sp 280se4.5 500seAMG 2sell:500sl92 380se83 300se86 350sl4sp 75slc MorInSig
Location: Philadelphia Area
Posts: 18,736
Mentioned: 27 Post(s)
Quoted: 1617 Post(s)
Lifetime Premium Member
Garage
(Thread Starter)
Sight unseen w108 purchase

I couldn't resist spending some sleeping hours on the w108.

- removed sunroof tracks, cleaned them, and tested sunroof while holding front edge up in the air. I must have a problem with the motor cable. The behavior is the same after cleaning lots of gunk off the tracks, and holding the front edge so it doesn't even contact the tracks. Well, I can open and close the sunroof, but it takes a long time. It takes lots of back and forth still.

- bolted in the seats.

- realized the car didn't come with lap belts. Hopefully the lap belts are the same as the ones in the two piece belts from a 1972-1973 450sl. I know I have at least one pair of those up in the garage attic somewhere. Thank you PetesMGA and the 1972 parts car!

- on the initial startup after sitting for maybe 9 days, it ran a little rough. I don't know how old the gas was. It could be very very old since the previous owner drove it less than 100 miles in 3-5 years. Anyway, it warmed up ok. Still it smoked, but it was late at night and I'm pretty sure everyone has their windows closed around here tonight.

- swapped the aluminum wheels for steelies with good hankook 205/75/15 whitewalls. In doing so, I realized I have four aluminum wheels, not five. One wheel is a w108 (assume 6.5") steel wheel. Since it has a 205/75/14 on it like the hankooks, it will be the spare. 5.5" with hankooks on all four corners though. I dig the look.
Sight unseen w108 purchase-imageuploadedbyautoguide1435046427.826440.jpg

So it was time for a spin. I thought a little driving would be good for the car.

Oil level was good.

Transmission fluid was possibly non-existent. (Am I burning trans fluid via a bad vacuum modulator?) but my driveway isn't level, and the car drove, so I figured I would leave the ATF as is for the first drive.

On the drive, with some full throttle runs, once I saw some sparks come from the exhaust. Wow! Well, I guess it's good to blow that stuff out!

After a few miles of spirited driving and some sputtering at the starts, it was some to go to the gas station and check fluids, etc.

http://youtu.be/qkKkNWHLZR0

There was still nothing in the ATF fluid. I carefully kept adding from my 5 gallon jug, and figure I must have added at least 1.5 qts of ATF,

I filled the tank with nearly a full tank.

As I left the has station, the acceleration was immediately much better. The gas was probably old, but the smoking hadn't seemed to go away at all. It's still there, but with lots of idling, the smoke seems to nearly disappear. It's just throttling that causes big smoke plumes.

I look down and see I'm doing 90 mph on the speedometer, and the car is cruising like its 60 mph. "Ooooohh. I'm liking the w108!"

I again noticed a few sparks out the exhaust. Whoa! More sparks! Oh my! More? Since i was going so fast and distracted by sparks, I detoured my initial plan of going straight to another gas station because I was getting worried that I had actual fire coming out the tailpipe, hmm... I think, "Is this type of thing covered by insurance?" So I got off the main roads and headed up some back roads in case the car went up in flames, saving me some potential embarrassment.

Well, no worries. The car is ok, and so am I. But as I was accelerating to get back on the main roads and back to the next gas station, two deer were standing in the middle of the road, I got the chance to test out locking up the brakes. All good! :-)

It was a great little cruise and I think I may have started to fall in love with the w108. It's a comfortable big car and it's pretty easy to drive. Sure, the steering is a little twitchy, and the suspension made a little more noise than I'd like, but overall, this feels like a VERY comfortable car that is capable of today's highway speeds.

Maybe not this one, but I feel myself possibly being a long term w108 owner, preferably one of the more powerful ones.

.

My signature:
Click for list of my 32 MB since 2010. If, you want 70's-80's Mercedes tuner wheels, let me know.

Last edited by Fonzi; 06-23-2015 at 02:51 AM.
Fonzi is offline  
post #94 of 137 (permalink) Old 06-23-2015, 06:35 AM
BenzWorld Elite
 
rumb's Avatar
 
Date registered: Oct 2012
Vehicle: 1968 250S, 1991 300se, 1998 SL500, 2x 1977 450SEL 6.9. Past MB's; 300SD, 300E, 300TE, 190E, ML420
Location: Colorado
Posts: 2,344
Mentioned: 5 Post(s)
Quoted: 425 Post(s)
Garage
great midnight ride!

Sounds very likely your vacuum modulator is sucking ATF. should be your next repair. that and removing the sunroof cable and greasing it. I need to to the same thing to mine.
rumb is offline  
post #95 of 137 (permalink) Old 06-23-2015, 06:42 AM Thread Starter
w108,107 Parts Hoarder
 
Fonzi's Avatar
 
Date registered: Jun 2010
Vehicle: 4Keep:450slc5.0cab 280sl5sp 280se4.5 500seAMG 2sell:500sl92 380se83 300se86 350sl4sp 75slc MorInSig
Location: Philadelphia Area
Posts: 18,736
Mentioned: 27 Post(s)
Quoted: 1617 Post(s)
Lifetime Premium Member
Garage
(Thread Starter)
Sight unseen w108 purchase

Quote:
Originally Posted by rumb View Post
great midnight ride!

Sounds very likely your vacuum modulator is sucking ATF. should be your next repair. that and removing the sunroof cable and greasing it. I need to to the same thing to mine.

Thank you! Did you watch the walk around video (from 1:20 to 2:00) where it is barely smoking until I hit the gas pedal?

Yes. The oil level was high. The ATF level was low, and there are no significant leaks. My nose is not well enough trained to tell if it is ATF or oil burning.

.

My signature:
Click for list of my 32 MB since 2010. If, you want 70's-80's Mercedes tuner wheels, let me know.

Last edited by Fonzi; 06-23-2015 at 06:44 AM.
Fonzi is offline  
post #96 of 137 (permalink) Old 06-23-2015, 07:01 AM
BenzWorld Veteran
 
Date registered: Aug 2009
Vehicle: '72 250C, '74 280C, '85 500SEL, '81 300CD.
Location: Tucson, Az.
Posts: 677
Mentioned: 3 Post(s)
Quoted: 51 Post(s)
ATF and brake fluids burning create white smoke. Oil releases a blueish color.

Because of the lighting condition it's impossible to determine the color.

If the car sat as long as you believe it has, more than likely the valve stem seals are dried out. I'd put some miles on it and hope they swell.

The sparks could be anything. Particles of rust in the exhaust system, incompletely burnt fuel, small aliens escaping from the mother ship, etc.

Last edited by Mike D; 06-23-2015 at 07:24 AM.
Mike D is offline  
post #97 of 137 (permalink) Old 06-23-2015, 07:18 AM Thread Starter
w108,107 Parts Hoarder
 
Fonzi's Avatar
 
Date registered: Jun 2010
Vehicle: 4Keep:450slc5.0cab 280sl5sp 280se4.5 500seAMG 2sell:500sl92 380se83 300se86 350sl4sp 75slc MorInSig
Location: Philadelphia Area
Posts: 18,736
Mentioned: 27 Post(s)
Quoted: 1617 Post(s)
Lifetime Premium Member
Garage
(Thread Starter)
Quote:
Originally Posted by Mike D View Post
ATF and brake fluids burning create white smoke. Oil releases a blueish color.

I think of the smell as an oil burning smell, and the mechanic that I asked said he thought it was oil too, saying probably valve stem seals. Since then I have assumed oil.

Can you see the puff of smoke in the video? I would say white, but maybe I'm color blind.

.

My signature:
Click for list of my 32 MB since 2010. If, you want 70's-80's Mercedes tuner wheels, let me know.
Fonzi is offline  
post #98 of 137 (permalink) Old 06-23-2015, 07:35 AM
BenzWorld Veteran
 
Date registered: Aug 2009
Vehicle: '72 250C, '74 280C, '85 500SEL, '81 300CD.
Location: Tucson, Az.
Posts: 677
Mentioned: 3 Post(s)
Quoted: 51 Post(s)
My initial impression of the video says, "oil" but it's impossible to tell the true color. Look at it in sunlight. You should be able to tell.

Run a tank or two of fresh fuel through it to clear out any traces of the old fuel from the system.
Mike D is offline  
post #99 of 137 (permalink) Old 06-23-2015, 07:38 AM Thread Starter
w108,107 Parts Hoarder
 
Fonzi's Avatar
 
Date registered: Jun 2010
Vehicle: 4Keep:450slc5.0cab 280sl5sp 280se4.5 500seAMG 2sell:500sl92 380se83 300se86 350sl4sp 75slc MorInSig
Location: Philadelphia Area
Posts: 18,736
Mentioned: 27 Post(s)
Quoted: 1617 Post(s)
Lifetime Premium Member
Garage
(Thread Starter)
Sight unseen w108 purchase

Quote:
Originally Posted by Mike D View Post
My initial impression of the video says, "oil" but it's impossible to tell the true color. Look at it in sunlight. You should be able to tell.



Run a tank or two of fresh fuel through it to clear out any traces of the old fuel from the system.

Thank you Mike D!

This earlier video (starting around 15 seconds in) does make the smoke look a little blue-ish...

http://youtu.be/xYJb77LykN0

Edit:
I will see if I can check prices on the trans modulator and see if I can install that myself. Aside from not kicking down into first and revving when I smash the gas pedal, I would say the trans does feel like it is working correctly.

Eventually, I will pull the valve covers and check the timing chain and guides, at which time I will plan on replacing the oiler tubes and valve stem seals.

I should probably also get started with some compression checks too.

.

My signature:
Click for list of my 32 MB since 2010. If, you want 70's-80's Mercedes tuner wheels, let me know.

Last edited by Fonzi; 06-23-2015 at 07:42 AM.
Fonzi is offline  
post #100 of 137 (permalink) Old 06-23-2015, 08:10 AM
BenzWorld Veteran
 
Date registered: Aug 2009
Vehicle: '72 250C, '74 280C, '85 500SEL, '81 300CD.
Location: Tucson, Az.
Posts: 677
Mentioned: 3 Post(s)
Quoted: 51 Post(s)
I'm pretty sure the "kick-down" function on the W108 is activated by the small switch beneath the accelerator pedal and not by vacuum. This is how it works on on every other '70's model of Benz I've worked on.The modulator's function is for smooth shifting at proper vacuum levels. Different from American iron.
Mike D is offline  
Sponsored Links
Advertisement
 
Reply

  Mercedes-Benz Forum > General Mercedes-Benz Forums > Vintage Mercedes-Benz

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Mercedes-Benz Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











  • Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
     
    Thread Tools
    Show Printable Version Show Printable Version
    Email this Page Email this Page
    Display Modes
    Linear Mode Linear Mode



    Posting Rules  
    You may post new threads
    You may post replies
    You may not post attachments
    You may not edit your posts

    BB code is On
    Smilies are On
    [IMG] code is On
    HTML code is Off
    Trackbacks are On
    Pingbacks are On
    Refbacks are On

     

    Title goes here

    close
    video goes here
    description goes here. Read Full Story
    For the best viewing experience please update your browser to Google Chrome