I received a request to explain how I modified the stock rubber rear engine mount in my 6MPS. So here it is:
A while back I installed a SU mount and found there was too much vibration for my liking so it came out and the stocker went back in. I still wanted to eliminate excessive engine movement, so instead of taking a gamble with another brand of mount I decided to create an engine mount to my own specification using the stock mount as the basis.
It was a relatively simple process and I now have a 70 duro polyurethane mount that does exactly what I want it to do - ie improve power delivery and gear shift by limiting engine movement but without excessive vibration. I'm very happy with the outcome and all it cost was $60 and some of my time.
If you want to do this yourself, here's how.....
Remove the stock mount and press out the big end using a vice or a mallet. This is how it looks on the way out, it's really very easy.
This next part is optional if you want to be hands on or save a few dollars.
You need to recover the steel bush. Do this by cutting away the rubber.
Just when you thought it was safe to accuse the stock mount of being soft spongy rubber, you discover that it consists mostly of solid nylon and hard rubber with the flexibility coming from the voids. Anyway, get rid of all the old stuff.
Then take the mount and bush (or the complete mount if you're taking the easy option) to a polyurethane specialist to be filled with 70 duro polyurethane in the colour of your choice.
I chose black and this is how it turned out.
Mine was done by Ryan at Advanced Polymer Technology in Armadale WA. Polyurethane Casting Perth, WA, Urethane, Polyurethane Casting, Advanced Polymer Technology
There are bound to be similar companies in other states. If you don't want to be bothered cutting out the rubber yourself you could just send them the complete mount and they will do all of the work for you for a few extra dollars.