Thanks for your reply. My problem happened last August and Yanmar, flying in the face of French consumer law, are still not taking any responsibility. It appears to me that there is a design fault in the injection pump which allows minute quantities of water
to build up into the injection piston system and when sufficient quantities build up the 'quarter' size metallic fuse splits rendering the injection pump useless. Where the water
comes from is a mystery. It is so minute that it could be the assembler's perspiration or just condensation
from the trapped humidity inside the piston area when it was manufactured. In my case there was no evidence that the oxyidation formed by the water droplet had any sufficient salt
in it to indicate it came from the sea. A further question arises in that since this part of the pump system is closed off from the pressure injection system itself, how could water ingress to the cause the malfunction
I would like to hear from other owners that have had this problem in this forum as we may not be alone.
Yanmar's steadfast refusal to honour a 2 year guarantee makes me even more suspicious that they are trying to hide something.
Do you any photos to share of the broken part or parts
? What was their reasoning for not honouring the guarantee?
I certainly feel that I have been 'pistoned' myself (to use a polite term) and very unfairly treated. It is not the way to run a company such as Yanmar is!