05-03-2018, 02:25 PM
Interested to hear how you get on, Reckless. Just an observation, but the fundamental issue is that the rubber in general use for these mounts plainly does not have long-term resistance to engine oil. I don't know what grade it is, nor what Austin originally specified. There are of course rubbers with superior oil resistance - nitrile rubber, for example - but in practice it might be difficult and costly to produce a batch, or even a small quantity.