Turns out the injector body becomes heat damaged and the interface
between the metal body and the plastic housing deteriorates. The only
fix is to get new injectors. They're not cheap at $200 each."
I'd suggest doing some comparison shopping for parts before buying
anything. If $200 apiece is correct, then that's $800 plus o-rings and
insulators (o-rings can be had for pennies if you *don't* buy them from
the dealership) and high-pressure fuel hose is fairly cheap. Make sure
you get high-pressure fuel hose clamps while you're at it. These clamps
apply pressure evenly all around the hose, unlike screw clamps and those
crappy 'pincher' clamps that came stock (they came stock on my FC,
anyway.) :)
Your mechanic wants $2100 for parts when I would expect it to not
even hit $1000 after tax? Something's not right here... There'd better
be some very special items in those kits - like gold-plated injector
rails. ;)
Where in the world are you? I'll see if I can locate any other
rotary shops in your area that might offer a second opinion, or a less
pricey parts estimate...
------------------
>>The strong gas smell might be due to the pulsation damper on one of
the fuel rails leaking. On the earlier 2nd gen that was the cause of a
few engine fires. I have no idea if the FD cars had this problem also; I
think it was fixed on series 5 2nd gens, but might be wrong on that.
The series 4 RX-7s (86-88) had a poorly designed PD that resulted in
more than a few engine fires. The series 5 (89-91) PD was an improved,
but hardly perfect, design. s4 owners are encouraged to replace their
PDs with s5 PDs (it's a straight swap.)
Some owners have attempted to pressure the NHTSA to recall the s4 PD,
but it hasn't happened yet and probably never will... :(
>>The injectors could be leaking, but that generally causes the car to
become flooded after it sets for a while, especially if it wasn't warmed
up completely before shutting it down.
Or the bodies of one or more injectors could be corrupted, rendering
the injector junk (as above)
>>You can send the injectors off to have them cleaned and flow checked.
There are several good places; mine went to RC Engineering, I think in
Torrance, CA. Cost was $24 each three years ago plus shipping of a few
bucks.
Sounds like a good price - mine were done for $40Cdn each this past
summer (done locally, not RC...)
