Engine Stay (2H7-21315-00-00 sic)

[BrettS]

Well that grabbed my attention!

[AussiXS11G]

sounds great Bretts......No 2 son is looking at them also
Regarding the solid mounts....
To quote MP
"I think this ended up being a huge improvement, as it locked everything to the engine and turned this into an integral stress member. I would strongly recommend that you do this and individually fit each insert you make which should be a tight fit into the cases. Ideally it would be best to screw fit them or tack weld each side to hold them in tight, thus reducing the possibility of vibration.."
B

[BrettS]

Ehhhh... Vibration.....I hate vibration.

They are made of 3mm by the looks. You could fab n weld a triangular patch that covers the whole mount or just fab up new brackets out of 5mm with some extra gussets.

One other idea that could work for us with limited machinery (oxy) would be 6 or 8mm for the double layer section with a couple of 25mm angle pieces welded to it for the "butterfy" part. Then a couple of little gussets.
I will add it to the list of Jobs and see what I can come up with for you Bryan.

Can you explain any more why Mal recommended to solid mount the engine?

[AussiXS11G]

I've been complaining about this buzz I've been experiencing on my machine (not the good kind of 60's buzz either) at around
3500 - 4500 rpm.
My engine, according to M Pitman's recommendations, is solid mounted into the frame using bespoke alloy spigots to replace the rubber engine mounts and has been surprisingly vibration free until recently. These spigots have been siliconed into the engine.
Back in 2002 M Pitman also suggested that I strengthen the Engine Stays but I was at a bit of a loss to know how and did not take this advice.
I was giving the big girl a tub on Sunday and noticed this on the right hand Engine Stay.




Fortunately, I have several pairs of these brackets "in stock" and was able to replace the cracked unit with a fresh one.
I have also used slightly bigger HT bolts throughout and needed to drill out the holes accordingly.
So now - to repair and strengthen a pair to be re-fitted.
I am going for a squirt today and hope that the buzz has disappeared.