Tag Archives: Mercedes W108 restoration

250SE recommissioning

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Today (12/08/15) A new job arrived. A really early W108 250 SE . It wouldn’t start although it would turn over.The First job when ever starting a Mercedes that has sat for several years is drain  the tank…

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this 4 liters of rotten fuel in a 25 liter bucket… what a rotten stink! I hate this stuff!. The filter was pretty well blocked up. Thank fully a look inside the tank revealed it to be very clean despite sitting for several years.

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So that is replaced.

Next job,replace ALL of the rotten rubber fuel lines. IMG_0477 IMG_0478 IMG_0479

Followed by replacing the fuel filter..

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I’m glad the filter was bravely trying to do it’s job 🙂 .

Once this is out of the way,the tappets have been adjusted but the timing chain needs replacing .All compressions are equal at 150PSi, so far so good….. But the spark plugs,although they look new are all carboned up. Not a good look on a Mfi engine . The Air cleaner needs to be cleaned out and i doubt very much that the oil bath unit has been apart for many many years.

In the meantime a quick look under neath reveals more of the usual things,worn diff bushes everywhere ,spring mount rubbers flogged out and a very leaky diff.

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Note the rotten exhaust…nothing like a damp storage area to rot a steel muffler..

Mercedes 280 SE 3.5 ute conversion.

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In these  pictures of the distributor, the inside is full of the damned bicarb which was used to strip the older paint of the cars body before painting.

The distributor will be stripped and overhauled because the bicarb will affect the fuel injection trigger points which are in the lower part of the distributor.

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IMG_0334In this picture it can be seen that the bicarb has infiltrated the igniton wiring.

Mercedes Benz 300SEL 6.3 repairs

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IMG_0239OK, ,more progress on the 6.3. The fuel is being replace and this pic shows why. Many years ago someone has crushed it by lifting the car incorrectly with a hoist ,jack or….forklift. In fact it was squashed in many places.

next pic shows one of the other crush points.

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IMG_0242Next job is the Fuel lift pump.

As can be seen in the pic,the pump was mounted solidly and is 150mm too high,meaning that once the fuel level drops to 1/3rd tank level the pump was starting to starve for fuel . These pumps are not a suction pump,but a pressure pump.

280SE 3.5 Ute Dash board restoration

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In the last week,progress has been made with the dash as the wooden trim is refitted. Next task will be to reit the steering column and complete the wiring restoration and repair  followed by the instruments ,steering lock etc.

6.3 300SEL Service

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IMG_0214Little details..

This is the conduit where the vacuum lines for the central locking pass on the 280SE 3.5 Project… pretty neat and an example of the over engineering on Mercedes of the past.

The 6.3 was misfiring badly under acceleration. a big disappointment for the owner ,who had spent a lot of money getting the injection pump rebuilt and the ignition converted to electronic  . So, when working under thecar replacing worn rubber joints and worn drive shaft parts I spotted the squashed fuel line .The picture on the right shows a really bad dent in the main fuel line . The entire line will have to be replaced ,and i am thinking this is probably the cause of the misfire

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The Drive shaft with it’s new staked unijoints and rubber center support bracket .

Mercedes 280SE 3.5 ute, brakes and air con overhaul

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The booster was a bit rusty looking so i t has been decided to strip it down. and clean it up .After pulling the master cylinder off,it could be seen that the booster was full of fluid….. IMG_0137 IMG_0139as can be seen ,the booster contained close to 3 liters of brake fluid.

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The steering column was then pulled and examined,more BiCarb! ,and the paint had been attacked and needed redoing . IMG_0142 IMG_0143

IMG_0145 IMG_0146 IMG_0149This picture shows the extent of the biCarb inside the gearshift mechanism.

Under the booster,the firewall and the right front chassis rail join was rusted out . The rusted metal is removed and replaced with fresh metal.

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Nest Job was to rebuild the Air con and once the housing was opened up,it could be seen that the evaporator was full of fluff and BiCarb.

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The bottom of the evaporator housing was rusted out so a new peice of Zinc anneal was welded into place to repair the bottom .Condensation won’t leak into the car now,.IMG_0168 IMG_0169the evaporator has been flushed and the fins cleaned and straigfhtened .Once the new bottom was welded in ,the housing and panels were zinc primered,then primed and fisnh coated in black .The foam liner was replaced and the unit reassembled and the fans tested .

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Mercedes W108 ute.. wiring repairs.

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The wiring in this ute project has also suffered because of the bicarb getting into insulation and plugsAdd Media . i had to replace the entire fuse box because of corrosion.

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A long job,entailing unscrewing each terminal,then cleaning as much of the bicarb out of the terminal end or replacing those too badly damaged and replacing the ring terminals with new ones.

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i still have to repaint the fuse box mount panel and repair the footwell light,but in the meantime,I will be removing the steering xcolumn to get the bicarb out of the column housing and checking the top bearing.and gearshift bushing..

But First, the heater must be installed.

The screen demister ducts have been cleaned or replaced as necessary with new antisqueak felts.

IMG_0118 . The controls are fitted to heater before it is fitted into the car.

IMG_0121all of the foam seals and matrix rubber mounts have been replaced in the heater.

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These are a pretty tight fit,but the heater goes in first ,followed by the demister ducts.. The column must bwe removed and repaited too. The handbrake is off,to replace the cable and clean up the shaft that has reacted with the bicarb.