My 55 ES2 has been fitted with a later distributor type timing case with 3 mounting screws. This suits me as I have made a blanking plate to enable it to seal against a modified MO1L mag (Dynamo gears and casing removed .. It has no Dynamo as its a trials bike) but having taken the cover off to check the relief valve and Spring I noticed that the oil feed was fitted with a fibre washer and a big dollup of silicone. How can I tell which type of seal it should have? Pics below.
Attachments image.0.jpeg image.1.jpeg technical1-I think I've worked out t…
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It says in the manual to p…
It says in the manual to place the casing in position and the fibre washer should prevent the edges of the case meeting by 1/32". So it's a tight fit when the screws are tightened. If I remember correctly I think the washer was about 2mm thick. But I have used Commando/Dommie oil pump rubber washers without any problems and probably a bit easier as the fibre washer has no give in it.
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I think I've worked out that the donuts were only used on twins, is that right? Does anyone know the thickness of the fibre washer?
Thanks
Dan