-------------- Original message --------------

> Hi Dale, not unkind to present an alternative to the unimaginative {:>). I
> understand that there are other alternatives such as the one you mention.
> However, in my case, the 1/2" distance added by your suggested insert (at
> least for the primary injectors in the block) would preclude me using my
> current intake manifold. Bearly sufficient room between the upper manifold
> runners and the injectors to screw on the fuel fitting as it is. Also I
> would then need to add a spacer to the injector holder rail (not a biggy I
> agree) to accommodate the additional height.
>
> So not quite so simple (in my case at least) of just milling an adapter
> insert. However, your suggestion may well be the answer for those with a
> different intake set up.
>
> If you do find the GM v6 injectors have the flow rate required (36-45
> lbs/hr) and having a smaller nozzle diameter than the Mazda injectors (which
> would just require a bushing) and cause no increase in installation height
> then I would be very interested. Please let me know one way or the other.
>
> Thanks
>
> Ed Anderson
>
>
> ----- Original Message -----
> From: "Dale Rogers"
> To: "Rotary motors in aircraft"
> Sent: Thursday, December 09, 2004 11:20 PM
> Subject: [FlyRotary] Re: fuel injector mounting
>
>
> > Ed,
> >
> > It's not my intention to be unkind, but the answer:
> >
> > > However, they will not fit the Mazda injector holes. You would have to
> mill/drill out the primary holes in the block to get these to fit.
> > >
> >
> > seems to lack imagination. I can't yet tell what the "real"
> > cost of such would be, but I'm certain that I could make
> > "step down" adapters that would only add about 1/2" to the
> > height of the injector. Probably have to use a custom
> > fuel rail, but extruded aluminum for those isn't horribly
> > expensive. The total will almost certainly come out less than a set of
> Mazda injectors, and it only needs to be
> > done once.
> >
> > I was thinking of trying some injectors from a late
> > '80s GM V6, except I haven't yet been able to get a flow
> > rating for them. The electrical connectors are an exact
> > match for the Mazda units, but the ends are the opposite
> > of the Ford problem, I'd need to machine bushings to
> > fill in the hole in the rotor housings (no change in
> > height.)
> >
> > Regards,
> > Dale R.
> >
> > > From: "Ed Anderson"
> > > Date: 2004/12/09 Thu PM 05:39:45 EST
> > > To: "Rotary motors in aircraft"
> > > Subject: [FlyRotary] Re: fuel injector mounting
> > >
> > > Exactly right, Ken. There are certainly cheaper injectors out there
> that flow the same rate as the Mustang and others. However, they will not
> fit the Mazda injector holes. You would have to mill/drill out the primary
> holes in the block to get these to fit.
> > >
> > > The Mazda 460 cc/min are around 43 lb/hour flow
> > >
> > > Well, lets see new ones at around $235 each x 4 = $940 plus tax/shipping
> vs the ones purchased used anywhere from $20-$50 each = $80 -$200. Which I
> guess is the reason I keep purchasing used ones {:>)
> > >
> > > Ed Anderson
> > >
> > >
> > > ----- Original Message -----
> > > From: kenpowell@comcast.net
> > > To: Rotary motors in aircraft
> > > Sent: Thursday, December 09, 2004 4:42 PM
> > > Subject: [FlyRotary] fuel injector mounting
> > >
> > >
> > > Look in the archives for an earlier post where I listed the
> measurements of both ends of the Mazda injectors and the Ford injectors -
> they are not the same. Ken P.
> > >
> > > -------------- Original message --------------
> > >
> > > OK, we have had this conversation before and I'm really not sure
> what I'm going to do but...... I picked up my latest 5.0 Mustang magazine
> and started looking for NEW injectors. Let's see, 42 lb set of 8 for $289
> from www.buyfordracing.com (good company, I've bought from them several
> times); Ford Motorsports 42lb set for $359 from www.houstonperformance.com;
> Steeda 42 lb(probably Bosch) for $309 from www.gtrhipo.com. I usually see
> 38 lb injectors but not with the quick look that I just completed. The
> Mustang aftermarket is a great source of injectors, fuel pumps, fuel
> regulators, etc. After reading of all the problems with the old Mazda
> injectors I'm again wondering if we wouldn't just be better off to buy new
> ones. Go to the RC Engineering website to determine the best size for your
> HP output (looks like 38
> > > Ken Powell
> > >
> > >
> > > ------------ Original message --------------
> > > I understand. That is a lot of the problems we all face with
> these electro mechanical monsters of late design. You can spend more than
> car is worth keeping minor engine details working properly. Of course, it is
> still much better than the certificted aircraft world. Remember, this is a
> word of art marketing world we are talking about here; rebuilt normally
> means disassmbled by hand, inspected by a technician, reassemled by hand
> using new parts to replace worn / faulty parts; reconditioned normally means
> simply cleaned and inspected, meeting original specs and refurbished means
> cleaned, tested, repaired, if necessary, and re-packaged, usually to as
> nearly as new a state as possible.
> > > ----- Original Message -----
> > > From: Ed Anderson
> > > To: Rotary motors in aircraft
> > > Sent: Thursday, December 09, 2004 3:26 PM
> > > Subject: [FlyRotary] Re: Fuel Leaks
> > >
> > >
> > > No disparagement of remanufacture parts implied, Jesse, I have
> used many remanufactured parts and still do. However, I have had at least 3
> injectors which have stuck open or leaked in the 250 hours of flying. These
> were cleaned and "refurbished" (not certain exactly what that means). Would
> new parts have done any better - don't really know but would have hoped so.
> > >
> > > However, infant mortality rate of new parts is certainly a
> factor as well. Used injectors are probably better than new injectors -
> however, after a certain point I am certain that the reliability curve
> starts down again.
> > >
> > > A number of folks on the list have had injector problems at one
> time or the other. I just think that 10-15 year old injectors are getting a
> bit long in the tooth considering the environment they operate in.
> > >
> > > Here we do have a choice in that new injectors are available -
> just rather expensive. Four new injectors and I have the $$ I spent to
> rebuild the engine in the first place.
> > >
> > > Ed Anderson
> > >
> > >
> > > ----- Original Message -----
> > > From: jesse farr
> > > To: Rotary motors in aircraft
> > > Sent: Thursday, December 09, 2004 3:10 PM
> > > Subject: [FlyRotary] Re: Fuel Leaks
> > >
> > >
> > > Since I, at one time, owned a parts rebuilding business, I
> gather you are suggesting that on certain type parts of certain age that
> washed parts are probably not worth the risk of going with less than new ?
> That's really all you can do with somethings. Of course, with others, you
> can not only re-build and/or replace worn parts but you can even improve on
> them. On others, cleaning and checking them is about all can be done.
> > > jofarr, soddy tn
> > > ----- Original Message ----- From: Ed Anderson
> > >
> > > These are refurbished injectors supposedly cleaned and flow
> tested - but, unless you buy new Mazda injectors at $235, you are getting
> remanufactured injectors which are getting to be almost 15 years old in some
> cases.
> > >
> >
> >
> > >> Homepage: http://www.flyrotary.com/
> > >> Archive: http://lancaironline.net/lists/flyrotary/List.html
> >
>
>
>
> >> Homepage: http://www.flyrotary.com/
> >> Archive: http://lancaironline.net/lists/flyrotary/List.html