Re: [diesel_mercedes] Re: Road trip/ charging issues sorted

 

The cheapo meter has 3 lights for Alt: low, normal, high. (and 3 for the battery)
Before it was flickering on 'low', now 'Normal' most of the time.
I also checked under the hood, and it read fine too. (I forgot the exact numbers)

I'm sure you're right, though I don't know if I could stand driving 60 all the way up there.
The '85 has higher gears.

That said, years ago I drove a overloaded Toyota PU w/ a trailer across the country, and took most hills at 20mph.

Rob
Garden Grove

On 7/18/15 5:55 PM, vwnate1@yahoo.com [diesel_mercedes] wrote:


Good to hear you're charging O.K. ! .

Does your tattle tale show voltage or just LED's from red to green ? .

If you can manage to keep the speed down to 60 MPH , your fuel economy will jump right up .

I realize that these day this means plodding along in the slow lane......

The aerodynamics of the W123 are not so good .

-Nate
      Rob   wrote :

I just completed an 800 mile road trip to NoCal and back, though only averaged 23mpg, w/ AC and moving quickly.
I need to rebuild the injectors. I did get a nice Italian tuneup on the Grapevine and Old Priest grade, as there was no one in front of me, on that windy steep road.

Before the trip, I was concerned about my ongoing charging issues, as even after changing the regulator on my Bosch factory rebuild, cleaning all ground and battery connections, it still read only low OK on Alt output, and the battery seemed the same, just OK, though needed to be charged here and there.

I pulled the plug on the back of the alt, after removing the ground off the battery, and sprayed it with electrical contact cleaner, and engaged/disengaged it repeatedly, and spraying again as well as engaged/disengaged the plug a few dozen more times. Afterward the Alt tester reading looked good, and the the 2 lights on the cheapo cig lighter meter stayed on the whole trip. All good for now.

Rob
'85 300D
Garden Grove, CA

 

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Re: [diesel_mercedes] Turbo Overhaul In The Rain

 

Nate,

I rebuilt my turbo a few years back, and it's like night and day, much more power and response.
I just used 2 HF picks, and yes it was a PITA, to install the clips.
If someone hasn't rebuilt their turbo in the 30+ yrs the car's been around, it needs it.

Rob
Garden Grove, CA

On 7/18/15 6:19 PM, vwnate1@yahoo.com [diesel_mercedes] wrote:
I got back to my Coupe and it's old turbo to - day , I had done most of the cleaning Thursday and SWMBO told me she was lonely Friday so I took the day off and took her around .

I'm using the Mercedes Service DeLuxe overhaul kit as I had no idea how good my impreller shaft would be , no point in wa$ting time and $ , right ? .

It's a very comprehensive kit containing everything you'll need , even a few special tools he makes up that ease the P.I.A. parts significantly .

In all , this is a do - able DIY job as long as you're detail oriented and don't mind spending a lot of time on a few things , mostly removing impossible to reach bolts by turning them  one flat at a time .

I found the bearings inside to be worn and scored , one of the four circlips that hold said bearings in place , wasn't properly installed so maybe that's why it needed overhaul again (?) .

In any case , once you're re assembling it you'll know straightaway why overhauling it makes such an improvement ~

before overhaul the impeller spun by finger vut had resistance and stopped quickly the instant you took your fingers off ~ with the new bearings and dynamic seals , it spins effortlessly and slowly spools down to a halt when you let go after giving it a spin .


One of the main things is to NOT force it upon re assembly ~ I am not sure just how the dynamic seal ring fits into the center section but twirling the shaft as you gently push it into place seems to work ~ at first I was wondering how this was going to go but after 30 seconds it went ' klunk ' and fell right into place .


Ken gives you a bit of plastic pipe to use as a stand whilst you're working on it plus special (synthetic I think)  red grease and some red locktite , new turbo bolts , picks to help you remove and re install the circlips .


I don't like using picks so I went to SEARS and bought some nice snap ring pliers then mis placed them on the drive home (hopefully I didn't leave them in the Mongolian BBQ we stopped for lunch at) , Ken's picks are crappy Harbor Freight items , I found using my 40 year old Mac Tools pick worked much easier and faster .


Cleanliness is paramount on this job , there's a lot of dirt and carbon you'll need to gently clean away before re assembling , old red Locktite on bolt threads , bearing bores that will have crud and more carbon in them , I used two cans of Starting Fluid and copious clean rags , onc everything is Hospital Clean you lay out a different work area towel , light colored as there are lots and lots of small parts to loose , mis place or have go ! POING !  and vanish into the 63rd dimension .


I used the tailgate of my old Shop Truck as a work bench because it was parked directly in front of the Mercedes .


I know there were some more points I wanted to mention , hopefully I'll remember them to - morrow .


It was pissing down rain and thunder & lightning too , at times I could barely see my house across the back yard ~ a rare thing here in La La Land . my Dogs heard the thunder and decided I needed more and much closer supervision ,  , they remained between my legs as I sat on an up ended milk crate and worked .


This is DO ABLE ! .


-Nate


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[diesel_mercedes] Turbo Overhaul In The Rain

 

I got back to my Coupe and it's old turbo to - day , I had done most of the cleaning Thursday and SWMBO told me she was lonely Friday so I took the day off and took her around .

I'm using the Mercedes Service DeLuxe overhaul kit as I had no idea how good my impreller shaft would be , no point in wa$ting time and $ , right ? .

It's a very comprehensive kit containing everything you'll need , even a few special tools he makes up that ease the P.I.A. parts significantly .

In all , this is a do - able DIY job as long as you're detail oriented and don't mind spending a lot of time on a few things , mostly removing impossible to reach bolts by turning them  one flat at a time .

I found the bearings inside to be worn and scored , one of the four circlips that hold said bearings in place , wasn't properly installed so maybe that's why it needed overhaul again (?) .

In any case , once you're re assembling it you'll know straightaway why overhauling it makes such an improvement ~

before overhaul the impeller spun by finger vut had resistance and stopped quickly the instant you took your fingers off ~ with the new bearings and dynamic seals , it spins effortlessly and slowly spools down to a halt when you let go after giving it a spin .


One of the main things is to NOT force it upon re assembly ~ I am not sure just how the dynamic seal ring fits into the center section but twirling the shaft as you gently push it into place seems to work ~ at first I was wondering how this was going to go but after 30 seconds it went ' klunk ' and fell right into place .


Ken gives you a bit of plastic pipe to use as a stand whilst you're working on it plus special (synthetic I think)  red grease and some red locktite , new turbo bolts , picks to help you remove and re install the circlips .


I don't like using picks so I went to SEARS and bought some nice snap ring pliers then mis placed them on the drive home (hopefully I didn't leave them in the Mongolian BBQ we stopped for lunch at) , Ken's picks are crappy Harbor Freight items , I found using my 40 year old Mac Tools pick worked much easier and faster .


Cleanliness is paramount on this job , there's a lot of dirt and carbon you'll need to gently clean away before re assembling , old red Locktite on bolt threads , bearing bores that will have crud and more carbon in them , I used two cans of Starting Fluid and copious clean rags , onc everything is Hospital Clean you lay out a different work area towel , light colored as there are lots and lots of small parts to loose , mis place or have go ! POING !  and vanish into the 63rd dimension .


I used the tailgate of my old Shop Truck as a work bench because it was parked directly in front of the Mercedes .


I know there were some more points I wanted to mention , hopefully I'll remember them to - morrow .


It was pissing down rain and thunder & lightning too , at times I could barely see my house across the back yard ~ a rare thing here in La La Land . my Dogs heard the thunder and decided I needed more and much closer supervision ,  , they remained between my legs as I sat on an up ended milk crate and worked .


This is DO ABLE ! .


-Nate

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[diesel_mercedes] Fuel Economy Check '84 300CD Slushbox

 


Mostly AC the whole tank , Startron added at the last fillup .

This fill I added Diesel Kleen as the primary intake screen remains full of clear as glass Diesel Fuel .


360 miles , 20.0 MPG


-Nate

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[diesel_mercedes] Re: Road trip/ charging issues sorted

 



Good to hear you're charging O.K. ! .

Does your tattle tale show voltage or just LED's from red to green ? .

If you can manage to keep the speed down to 60 MPH , your fuel economy will jump right up .

I realize that these day this means plodding along in the slow lane......

The aerodynamics of the W123 are not so good .

-Nate
      Rob   wrote :

I just completed an 800 mile road trip to NoCal and back, though only averaged 23mpg, w/ AC and moving quickly.
I need to rebuild the injectors. I did get a nice Italian tuneup on the Grapevine and Old Priest grade, as there was no one in front of me, on that windy steep road.

Before the trip, I was concerned about my ongoing charging issues, as even after changing the regulator on my Bosch factory rebuild, cleaning all ground and battery connections, it still read only low OK on Alt output, and the battery seemed the same, just OK, though needed to be charged here and there.

I pulled the plug on the back of the alt, after removing the ground off the battery, and sprayed it with electrical contact cleaner, and engaged/disengaged it repeatedly, and spraying again as well as engaged/disengaged the plug a few dozen more times. Afterward the Alt tester reading looked good, and the the 2 lights on the cheapo cig lighter meter stayed on the whole trip. All good for now.

Rob
'85 300D
Garden Grove, CA

 

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