Wow it's a bargain for $700.
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ECM Giotto Premium Plus V2 help
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Group head is easy to rebuild, it's probably the seals in the exhaust that are shot.
I've stripped my Rocket completely and recently did full de-scale (while disassembled) Put the lot in a bucket of de-scaler overnight. While it wasn't bad, it did look cleaner the next day.
Coffee parts has most of the bits you need. There's not much to the machines really - a few bolts and pipes. Take pictures as you pull it apart and clean it - that way you can remember how to put it back together again.
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Items 26 are the shaft seals for the lever.
Items 27 to 29 serve to compress the seals axially. Since rubber is virtually incomrpressible, the axial compression results in radial extension which forces the seal against the shaft.Last edited by Lyrebird; 24 September 2018, 09:58 PM.
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As it hasn't been mentioned in this thread ....be aware that it is well advised to use an appropriate amount of food grade silicon lube on seals, valves and moving parts within the E61 grouphead when servicing.
GLLast edited by EspressoAdventurer; 27 September 2018, 12:03 PM.
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I prefer Molykote 111 for E61 seal lubrication as well as lever group seals. Pretty much if the seal is subject to hot water and pressure then I use it. If you have a Blackwoods close by they sell it in 100g tubes.
Inox lube is ok for tap threads and other low pressure/low stress situations but I never found it to last very well in E61 cams.
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