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Thanks very much Warren. I guessed as much, but it's nice to know the facts. Pulling things apart to clean and inspect was obviously beneficial in your respect, as it is in almost every situation.
I can still hear my Mum's words many years ago when I pulled apart the electronic toy robot they gave me for christmas- "Matthew, I do hope you know how to put that back together again". I didn't of course, but we all have to start somewhere. Pity they didn't encourage my interest, merely steered me down the academic path. I digress.
The problem with my distributor was a fibre washer breaking up between the base plate and body, leading to steel-on-aluminium rotational contact. They don't mix well- the alloy 'drags' on the steel and rapid wear is the result. I was surprised there were no steel thrust washers there as well, just the fibre one.
Could this be a common Bosch failing? It's easy to check- just pull up and down on the shaft the rotor arm is joined to. Warren's 0.001" would equate to no movement noticed here here. I had about 4mm!
Be warned!
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