REFLECTOR: Special O-Rings

[Scott Derrick]

Whilst attempting to tune the turbo/induction system on a TSIO520, I 
found out the wastegate controller was leaking oil into the upper deck 
pressure side of the unit.

I dissembled it and found the "O" rings needed replacement. not many 
hours on the unit but a lot of years.

The three large rings were a standard size but the small one is not. Its 
close to a -008 size O-ring(3/16x5/16x1/8) but with a width of 3/32 
instead of 1/8 of an inch.

I've searched and searched for an O-ring with a (3/16x5/16x3/32) but 
can't find one on line.

Any suggestions?

Scott