Scott Gettings wrote:

As a recent member to the group, I've enjoyed all the information education.   I'm
leaning very strongly toward a 13B for my Glass Goose.

I just ran across a friend with an 89 fuel-injected RX-7 with 70K miles on it.  He
says it smokes just a little on startup, which immediately clears out, then runs
fine.  He has had the car for about 20K miles, with an unknown history before
except that it has never been raced. I can get the whole car for about $1,000.

Any opinions as to what I should look for in terms of assessing this engine as a
rebuildable core?  Oil burning, compression, etc?  It seems like whether I rebuild
one myself or send it to one of the experts to do, a reasonable core is important
to start with.

Scott Gettings
Glass Goose
Melbourne, FL

Usually that is caused by seeping oil rubber O rings on the sides
of the rotors. That can be caused by the rotors overheating.
Do a pressure test on the coolant system to be sure the 
water coolant O-rings are not leaking as well which might mean the rotor
housing(s) could be slightly warped due to overheating. I have 
a tendency to look on the dark side :-) 

In any event sounds like a good deal for a running 13B engine now a days 
assuming it has a 13B. Look at the engine just above the spark plugs 
and you should be able to see 13B cast on the rotor housings.
I am not sure about which year they started putting the 13B in RX7's.
Come to think about it I don't think they ever fuel injected
the 12A engine. I could be wrong.

In any event new rotor housings will cost you about $400 each so you
are still ahead of the game. When you overhaul it buy those Hurley 
Engineering seals and save your self a bunch of money over the stock
Mazda seals. Like $500! 

Also get Bruce Turrentines overhaul video. He has some tricks in there 
for checking the conditon of the engine while installed in a car.

 Bruce Turrentine <BruceTurrentine@aol.com>

Paul Lamar
 
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