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Message
Greetings,
I took the engine apart
today, and here are some pics of the damage I found.
The front rotor, and
associated side housings look fine, and both rotor housings are fine.
The rear side of the rear
rotor is fine, but the front side of the rear rotor is ugly (see pic). As
bad as it looks, you can't really feel any worn spots, so I'm thinking it will
be OK assuming I can get the seals out. You can't tell from the pics, but
the side seals are mashed into the rotor in the center of the seals, where the
discolored part of the rotor is. The ends of the side seals are
free.
The rear side of the
intermediate housing is fairly well scored, but perhaps this can be machined
(lapped?) and renitrided. I'll ask Bruce about this tomorrow.
The rear housing is also
damaged, but not quite as badly as the intermediate
housing. It will still have to be repaired or replaced
though.
I don't recall the criteria
for bearing damage, but just looking at them, they all look fine to me.
I'll have to watch the tape again to see what I'm supposed to be looking
for.
The oil pump chain has 1/2"
of slop, which Bruce's tape says is bad. Hard to imagine wearing this out
in as few hours as this engine has.
While I'm in here, I'd like
to make the porting a bit more aggressive for some extra power (need an edge on
Tracy). Suggestions accepted, particularly from Lynn, and Leon. This
is Bruce's porting job, which I believe he said was basically the Racing Beat
street port. I'll also drill the foot of the rear rotor
housing for an oil return for the redrive. Who knows what else I'll
do while inside :-)
Cheers,
Rusty (I guess I'm
committed to a rebuild now)
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