I have both covers (and a few 1.6 lower covers) here and I like the AHU one better.
It looks stronger around the pully. Sounds like that makes it hard to use with the V-belt crank pully.
Makes sense, it's opened up a lot on the AAZ lower cover.
Glad he has someone local helping him with parts.
These 1.9s are rare and can be hard to find parts for in the US, especially plastic parts.
Oh that motor mount is upside down, dang it.
I fill the gaps in mine with urethane. Almost impossible to find the V-shaped heavy duty motor mount.
Parts geek said they had them for $35, then sent me the weak one they had for $10.
Refused to make it right so last time I bought from them.
The head on the broken AAZ I'm playing with has a KS head on it.
I really hope it survived,.. but a thrown rod can cause a lot of damage.