----- 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.