I just got my 450SLC back from having the timing chain, tensioner, camshaft oiler tubes and valve stem seals replaced. These are all jobs that any owner of a Mercedes V8 of this era will need to undertake at some point. The primary driver behind this was the need to replace the valve stem seals. A couple of my sparkplugs, #1 in particular, would...
Before I begin regular usage of the 560SEL there is further maintenance required. Per a receipt I have, a new timing chain and tensioner was fitted around 20,000km ago. This is obviously a good thing, but it was a shame that while this was done, the M117 timing chain guides were not replaced. The guides (and ideally the sprockets) should always be replaced at...
The Timing chain replacement is almost finished on the 560SEC. The new chain is installed, guides fitted and valve stem seals replaced. I stopped by the workshop to pick something up that I had left in the car and I was able to see it almost done. The photo shows the new chain in place with all new guides. They are a much...
I’ve been preparing for the next round of improvement projects for the 560SEC. The most important is the Timing Chain and Valve Stem seals. I’m not going to do this job myself and am hoping to save a little labour cost by having both the stem seals and the chain done at the same time. I had previously checked the Timing chain and...
My two biggest concerns buying this 560SEC was the potential for rust being a UK car, and the condition of the timing chain. I was pleasantly surprised when I looked underneath the 560SEC and found that it was not a rusty car. The other common W126 rust area is under the rear windscreen. This is also an issue in Australian delivered cars as it’s...
I have always admired the W116 model. However, since the introduction of the W126 in 1980 the W116 has lived in its shadow. My 450SLC has been my primary car for most of the time I have owned it, but with three children, this is no longer possible. As I needed something that could fit three child seats in a row, a W116 would...
The Achilles heel of M116 and M117 engined cars is the timing chain. As the engine is an overhead valve engine, the chain is used to make sure the valves open and close when they should. On the V8 the chain needs to go to both heads and down to the crankshaft and so it is very long. This exacerbates the...
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