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6.9 engine rebuild with pics

Started by nathan, 16 July 2017, 10:32 AM

nathan

cheers Rum, ill leaving the engine install to the mechanic but I've wrapped the front end to reduce the risk of accidental damage!
1979 116 6.9 #6436
2018 213 e63
2011 212 e63
2011 463 g55
2007 211 e500 wagen
1995 124 e320 cabriolet
1983 460 300gd
1981 123 280te

nathan

sitting on a train from Montreal to Quebec on holiday so time to upload some pics of a delivery a few days ago. reportedly the engine is in and my car is running now as I left the bits with the mechanic. I even met Tom Hanson in LA on the way through which was a nice meeting!
1979 116 6.9 #6436
2018 213 e63
2011 212 e63
2011 463 g55
2007 211 e500 wagen
1995 124 e320 cabriolet
1983 460 300gd
1981 123 280te

TJ 450

Nice work! Did you pick these parts up in person from the Classic Center?

Tim
1976 450SEL 6.9 1432
1969 300SEL 6.3 1394
2003 ML500

ptashek

Nice to see so many new bits going in. A proper job!

p.s.: Looks like the 6.9, W123 and W124 with hydro all share the same lever joint (A1233201489). Hopefully there's good stock, as I'll need one next year when the rear axle on my 280TE will come out for a refurb.
1993 "Pearl Blue" W124 280TE
1988 "Arctic White" W124 200T
1979 "Icon Gold" W116 450SE

nathan

#154
returned from a brief break and the car is back.  running nicely but cant drive it really as the suspension is up and rock hard.  I have called in the 116.org heavy weights to see if they can figure this out today.  I put a few more bits back on yesterday. I want to take the car to an auto electrician to get a few harness' tidied up. there is a lot of chicken and the egg in this project I have found, id have rather had the harness' done before the engine went in, but you cant drive the car to an electrician without an engine etc.  a small thing which makes me happy is my repainted recovery point. after 40 years, mine was black and grubby and not silver in the slightest. repainted and reassembled it looks a lot nicer now!
1979 116 6.9 #6436
2018 213 e63
2011 212 e63
2011 463 g55
2007 211 e500 wagen
1995 124 e320 cabriolet
1983 460 300gd
1981 123 280te

rumb

restoring the wiring harnesses in the engine bay are real bit of work.  You have to disassemble from the connectors in.  remove connector body, unsolder pins, remove sleeving, replace bad wires with splices and then re assemble in reverse. But once done look wonderful. For splices I use un-insulated butt connectors and then shrink tube them so they are nearly the same as original diameter and fit back in the sleeving.

I've posted these before, but here are the sleeves available. the first 3 digits of the second half is the size in mm.

N040621-005200
N040621-007201
N040621-008202
N040621-012203
N040621-016204
N040621-022205

If you need a bit of a certain wire color, let me know I have an old harness to cut from.


'68 250S
'77 6.9 Euro
'91 300SE,
'98 SL500
'14 CLS550,
'16 AMG GTS
'21 E450 Cabrio

nathan

Thanks Rum,
ill check out some pics of the shrink wrap as this needs to be tidied up.

yesterday we had success.  TJ and co came around to figure out why my car was stuck high riding in a rock solid mode.

we bled air from the front passenger sphere and all it did was drop the front which then wouldn't come up. we did the same on the rear at the bleeding valve (on left side of valve under a grommet). it got it down and then pumped up to normal height with proper damping. the front did not rise.  we thought it may be the front valve although this looked good with nice boot. regardless, we replaced this with a new valve I bought 10 years ago or something. no change dammit and we just put on a bloody unicorns horn of a part! 
use of the new valve which had a 126 number meant you had to change the lever arm from the old one (which didnt have that ball joint on it).

we paid attention and heard a hissing noise from the rear valve area (but no leakage) when the car would be turned off. TJs take was the rear valve was probably leaking internally so we then put the previous front valve one the rear, and success! whilst removing it the lever arm mount disintegrated and fortunately id ordered two when I was buying the engine part numbers.  the car is now at correct height and soft again. I also replaced the level arms to valve at the same time. I really need to get under the car and clean the underside but this will be easier when I hopefully get access to a hoist.

some pics
1979 116 6.9 #6436
2018 213 e63
2011 212 e63
2011 463 g55
2007 211 e500 wagen
1995 124 e320 cabriolet
1983 460 300gd
1981 123 280te

nathan

and the insitu valves.
I had a few from wrecked 6.9s but mine was in much better shape than these so ill keep these for another day!
1979 116 6.9 #6436
2018 213 e63
2011 212 e63
2011 463 g55
2007 211 e500 wagen
1995 124 e320 cabriolet
1983 460 300gd
1981 123 280te

nathan

slowly slowly. im now held up with my interior effectively being gutted and having to do it all in sequence. more on that later. these were the leads that we used to replace the older ones as one of the previous leads was noted to be cooked. (that and the old ones were unbefitting of the engine bay!)
1979 116 6.9 #6436
2018 213 e63
2011 212 e63
2011 463 g55
2007 211 e500 wagen
1995 124 e320 cabriolet
1983 460 300gd
1981 123 280te

nathan

ill start a new thread on this, but have now also moved onto replace the dash with the new one i bought a few years ago.  this then led to other things to do.
1979 116 6.9 #6436
2018 213 e63
2011 212 e63
2011 463 g55
2007 211 e500 wagen
1995 124 e320 cabriolet
1983 460 300gd
1981 123 280te

TJ 450

It'll look a million dollars once back together, and the A/C will be nice and cold which is a bonus.

Tim
1976 450SEL 6.9 1432
1969 300SEL 6.3 1394
2003 ML500

ptashek

...and it all started with an "engine rebuild".

Welcome to the rabbit hole Nathan! :D
1993 "Pearl Blue" W124 280TE
1988 "Arctic White" W124 200T
1979 "Icon Gold" W116 450SE

nathan

cheers PT,
it certainly does. you know it all too well!
whilst the dash was out, I also decided to get the wood redone by the French wood polisher.
my car had all the other wood done years ago except for the dash stuff.
so when I sent this off I also sent off a batch of spare wood to put in our other cars (and a spare set!)

the before
1979 116 6.9 #6436
2018 213 e63
2011 212 e63
2011 463 g55
2007 211 e500 wagen
1995 124 e320 cabriolet
1983 460 300gd
1981 123 280te

nathan

and afters, put on your sunglasses! ;)
1979 116 6.9 #6436
2018 213 e63
2011 212 e63
2011 463 g55
2007 211 e500 wagen
1995 124 e320 cabriolet
1983 460 300gd
1981 123 280te

nathan

more
1979 116 6.9 #6436
2018 213 e63
2011 212 e63
2011 463 g55
2007 211 e500 wagen
1995 124 e320 cabriolet
1983 460 300gd
1981 123 280te