New Pistons installed ,side covers and sump fitted ,note: the deck has been machined to ensure it’s flat and true.
Head is reassembled with all new Valves. The valve heads were pitted from corrosion and machining them would have made the valve head margins too thin.
Cylinder head, water pump, and distributor drive fitted .Timing chain was replaced with a superior Iwis Chain,the one in the pic was just used to help install the new chain.
Accessories added and nearly ready to install in the car.
The new engine and trans are installed with a new oil pan ,rear and front crank seals. New injectors with new intake manifold gaskets,timing chain and rails should see a nice reliable tow car for the owner 🙂 .New fuel hoses and clamps will connect the fuel system together .
An update n the cabrio’s engine job. After some time a set of new pistons has been made to suit the new bore size (1mm oversize) which was necessary to repair the pitting caused by water getting into the engine at some time in the past.
Crank shaft has been linished ,balanced and cleaned .Connecting Rods have checked for straightness,big and small end bore true and new small end bushes fitted and honed to size.
New pistons and rings with new bearing shells fitted .
New side plate and block bungs are fitted ,with the crank and pistons installed after checking clearances and fitting new crank seals.
Distributor and pump drive installed with sump .New timing chain and slide rails are also in place.
The oil pump was measured and was within specs.
The rear panel on this car has had a few hits over the last 51 years and suffered from some pretty bad repair work. To straighten the dents and remove the rust ,caused by leaking tail light gasket i made a patch and cut out the rust with a hole saw.
With access through the hole , I could poke a dolly in and shrink out all the small dents .Last step was to repair the hole where the lights fit .It was pretty tough getting the dings out because the metal had been ground pretty hard in the past when someone has tried to fix the panel in the past.
The rear panel looked straight to begin with but there was tell tail signs of body filler which was falling out. After stripping it back to the bare steel ,it could be seen tht the panel wasn’t too badly damaged ,
The white stuff is old body filler which will be removed.
A few small rust outs have been welded up the ring shows more filler which has been parti ally removed.
On the right side there is a rust hole which will be repaired with a patch.
On both sides of the fuel door i had to shrink out a pair of dents which had been filled. Hard to see here but it’s now very smooth .
These are the two dents i removed
After Christmas 2016 and I’m slowly catching up with all of the work in the shop,first up is further rust repair on the W112 Â 300SE lang. under the booster it had rusted, not badly ,just ugly …
Years of spilled brake fluid has burnt off the paint ,leaving the steel bare and open to rust.
The rusted parts have been removed and inside the crossmember cleaned and rust treat .
New top piece has been cut out of Zinanneal 1mm  to match the existing panel,
because of the complex shapes ,the replacements have to made in cardboard first to get all the shapes organised first.
With the engine now stripped down and measured in preparation ,the head has been cleaned to reveal some corrosion 
The seats are worn but not pitted but the cylinders #5 & 6 show a lot of pitting indicating a leaky head gasket in the past . the head will be machined slightly to get rid of the pitting.
The valves will probalby replaced if grinding them removes too much of the valve sealing face.
250 S in very straight condition. Been off the road since 2010 due to a minor fault. This is a project car and will require normal work to get registration etc . There is very little rust in the right front sill front and the rear boot box bottom,right hand side. 
No rust in the doors or floors!! no dash cracks ,and the MBtex seats are still very good. Original boot mat is in very nice condition . 
progress has been held up while i rebuild my Mig welder . But in the meantime I have begun the task of anchoring the cowl to the coupe shell. It involves a lot of fabrication of the various small bits to be welded into the body .Starting with the right A pillar.
 more of the W126 A pillar was removed,back to where it was originally welded to the cowl. This will make a cleaner stronger joint.
These will be plug welded then lap welded around the edges.
The last part will involve welded a second peie over the top of the top panel which will connect the inner guard (on the right) to the cowl.
Every now and then I find stuff I Â never knew I had so I have and one example is a sump protection plate. for any W111 Chassis Mercedes. .
i even have the front brackets which are damn rare.
And…It may be sold already.
benzkraft 