|
Message
Welcome Jeff,
The rotor housings looked great. How does the coolant get
into
the rotor housings once the engine is pulled?
Unless the coolant is poured, or
spilled into the ports, it shouldn't be able to get into the rotor
housings. If the combustion O-ring was bad, coolant could
get from the cooling passages into the rotor housing. Take a close
look at the O-ring grooves on all the side housings. Was it in both
housings, or just one?
Was the intake manifold on the engine when you got it? If not, maybe
someone just got careless when they removed it, and managed to dump some coolant
in the engine.
I remember a month or so
ago people talking about newly
rebuilt engines doing this. How does
that happen?
Not exactly. We
were talking about coolant in the coolant passages. If this sits long
enough, it will rust the cooling passages. It shouldn't be in the rotor
housing though.
Is it better to get them surface ground and
re-nitrided (loose some o-ring
channel depth? Three of the four
surfaces are good (can't see ANY wear
but I didn't check yet for
warpage). The fourth isn't bad but it seems
like a micro pitting.
Should I do anything with these or put it
together and run it this way?
It's hard to believe there isn't "any"
wear on side housings. Is there a chance this engine was very new, and had
almost no miles on it? Try to clean up the pitted housing with
scotchbrite, and see what it looks like, then perhaps talk to Racing Beat about
resurfacing it. They should be able to advise you on whether it needs to
be done. As far as I know, they don't flame spray the iron housings, but I
know they can grind and re-nitride them.
I use my rotors (88) will
I need to get an 86-88 rear counterweight?
Yes.
Do I need to change the front counterweight?
No.
If I change to the higher compression 89-91 NA rotors do I need the 89-91 NA
counterweight?
Yes, front and rear.
Are all the flex plates the same as I also need to get a starter?
The flex plates are the same up to
91. The 3rd gen (93+) flex plate will not work.
Can I
get 180hp out of a 6 port NA? Is this reasonable with a 2.85:1
redrive? I would love to get more but is
180 even reasonable?
Absolutely reasonable with a
decent intake and exhaust
Cheers,
Rusty (Ed seems to be having some
typing problems today)
|