One of the rubber sealing O rings dropped off the VDO oil pressure gauge recently. The rubber had just split. I bought two new ones from a spares place and although they are not VDO they are 52mm, the correct size. I replaced the other seal, on the oil temp gauge, as well which was also beginning to split. They went on ok and are quite a bit thicker than the old VDO ones. Hopefully they will last a bit longer.
old O rings
old O rings
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