*&&@#* Oil Injectors

BLKTOPTRVL · 09-24-2008, 06:49 PM

I'm having one hell of a time getting the oil injectors back in tight (the ones on the engine - not the manifold).

The wrenches I have are not narrow enough at the head to slip between the head (red) and the base (yellow) to get a bite on the bolt (green).

So, what did you do to get these tight? Did you take a 14 mm and grind down one or more faces, or were you able to find a wrench that is thin enough?

vex · 09-24-2008, 08:15 PM

Looks to me like your oil injectors need some TLC. I just used a wrench, but my injectors were significantly better condition.

Polito Racing · 09-24-2008, 08:42 PM

when I have problems getting them out I use a big spark plug socket from the top and rachet it out. I beleive the one I use is a 13/16. allways works!!!!!

BLKTOPTRVL · 09-24-2008, 08:53 PM

Hmmm, the big heads didn't look that strong to me. Figured I would snap them off if I put a wrench on the head.

BLKTOPTRVL · 09-24-2008, 09:01 PM

Looks like it is a moot point on the old injectors... Only one of the four passes the suck test. So, I guess I need to lube up (pun intended) and go see the mazda parts man.

Polito Racing · 09-24-2008, 09:14 PM

did you do it? did it work?

BLKTOPTRVL · 09-24-2008, 09:17 PM

No, there is no point to trying to get them in tight now. Three of the four are shot.

Whizbang · 09-24-2008, 09:19 PM

i ground down a wrench to fit

BLKTOPTRVL · 09-24-2008, 09:21 PM

Quote:

Originally Posted by Low Impedance

i ground down a wrench to fit

That's probably what I will do after I get a new set of injectors (nozzles).

BLKTOPTRVL · 09-25-2008, 05:35 AM

Question:

I will call Mazda later today to get a price on the injectors. Mine need to be replaced because they are only supposed to pass vacuum in one direction. Mine pass air in both directions.

I imagine the Mazda price will be relatively high. So, instead of replacing the bad ones I have, can't we just put check valves upstream from the bad injector nozzles as I show in the picture? I can find these valves for as low as two dollars each.

djmtsu · 09-25-2008, 06:44 AM

Get some from Mazdatrix, or call Ray at Malloy Mazda.

Fero313 bought like 20 oil injectors used before actually getting 4 that worked, to me that isn't worth it.

BLKTOPTRVL · 09-25-2008, 07:54 AM

I checked the MaxdaTrix site and didn't see any on their site and I think Mazda doesn't sell them anymore.

I may just have to add checkvalves inline.

djmtsu · 09-25-2008, 10:35 AM

http://mazdatrix.com/b62.htm

about halfway down right above the OMP lines.

BLKTOPTRVL · 09-25-2008, 11:36 AM

Thanks for the look-out. Don't know why I didn't see them before.

Mallory is selling them for a little less than Trix right now. But from what I read, new ones can go bad within 10K of purchase. So, I am going to try the check valves first (at < $8.00 a set) before going to the new nipples.

Thanks again.

BLKTOPTRVL · 09-27-2008, 11:00 AM

Mazda put a individual check valve into each of the oil injector nozzles.

Does anyone know if the check valve is at the base of the injector to block the backwards flow of oil? Or is it at the top of the injector to stop the backwards flow of air?

09-24-2008, 08:15 PM	#2
vex RCC Loves Me Not You Join Date: Jul 2008 Location: Influx. Posts: 2,113 Rep Power: 19	Looks to me like your oil injectors need some TLC. I just used a wrench, but my injectors were significantly better condition. __________________ The Official FC Radiator Thread My Project Thread: Cerberus CCVT Virginia Rotary Group

09-24-2008, 08:42 PM	#3
Polito Racing so you got pistons oh wow Join Date: Mar 2008 Location: Raeford NC Posts: 87 Rep Power: 18	when I have problems getting them out I use a big spark plug socket from the top and rachet it out. I beleive the one I use is a 13/16. allways works!!!!! __________________ Polito Racing 2000 F-350 SD (Daily Driver) 2002 CBR 954RR (Back on the Road) 1987 RX-7 Turbo II(red bullet!!)

09-24-2008, 08:53 PM	#4
BLKTOPTRVL Rotary Fanatic Join Date: Feb 2008 Posts: 192 Rep Power: 18	Hmmm, the big heads didn't look that strong to me. Figured I would snap them off if I put a wrench on the head. __________________ ...shoot a mother-humpin moose, eight days of the week...

09-24-2008, 09:01 PM	#5
BLKTOPTRVL Rotary Fanatic Join Date: Feb 2008 Posts: 192 Rep Power: 18	Looks like it is a moot point on the old injectors... Only one of the four passes the suck test. So, I guess I need to lube up (pun intended) and go see the mazda parts man. __________________ ...shoot a mother-humpin moose, eight days of the week...

09-24-2008, 09:14 PM	#6
Polito Racing so you got pistons oh wow Join Date: Mar 2008 Location: Raeford NC Posts: 87 Rep Power: 18	did you do it? did it work? __________________ Polito Racing 2000 F-350 SD (Daily Driver) 2002 CBR 954RR (Back on the Road) 1987 RX-7 Turbo II(red bullet!!)

09-24-2008, 09:17 PM	#7
BLKTOPTRVL Rotary Fanatic Join Date: Feb 2008 Posts: 192 Rep Power: 18	No, there is no point to trying to get them in tight now. Three of the four are shot. __________________ ...shoot a mother-humpin moose, eight days of the week...

09-24-2008, 09:19 PM	#8
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp Posts: 3,190 Rep Power: 21	i ground down a wrench to fit __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook

09-25-2008, 06:44 AM	#11
djmtsu My minds tellin' me no... Join Date: Feb 2008 Location: Murfreesboro, TN Posts: 4,043 Rep Power: 22	Get some from Mazdatrix, or call Ray at Malloy Mazda. Fero313 bought like 20 oil injectors used before actually getting 4 that worked, to me that isn't worth it. __________________ 1976 Mazda Cosmo RX-5 1976 Mazda Cosmo RX-5 2003 Toyota Tundra TRD 2015 Toyota 4Runner SR5

09-25-2008, 07:54 AM	#12
BLKTOPTRVL Rotary Fanatic Join Date: Feb 2008 Posts: 192 Rep Power: 18	I checked the MaxdaTrix site and didn't see any on their site and I think Mazda doesn't sell them anymore. I may just have to add checkvalves inline. __________________ ...shoot a mother-humpin moose, eight days of the week...

09-25-2008, 10:35 AM	#13
djmtsu My minds tellin' me no... Join Date: Feb 2008 Location: Murfreesboro, TN Posts: 4,043 Rep Power: 22	http://mazdatrix.com/b62.htm about halfway down right above the OMP lines. __________________ 1976 Mazda Cosmo RX-5 1976 Mazda Cosmo RX-5 2003 Toyota Tundra TRD 2015 Toyota 4Runner SR5

09-25-2008, 11:36 AM	#14
BLKTOPTRVL Rotary Fanatic Join Date: Feb 2008 Posts: 192 Rep Power: 18	Thanks for the look-out. Don't know why I didn't see them before. Mallory is selling them for a little less than Trix right now. But from what I read, new ones can go bad within 10K of purchase. So, I am going to try the check valves first (at < $8.00 a set) before going to the new nipples. Thanks again. __________________ ...shoot a mother-humpin moose, eight days of the week...

09-27-2008, 11:00 AM	#15
BLKTOPTRVL Rotary Fanatic Join Date: Feb 2008 Posts: 192 Rep Power: 18	Why so many check valves? Mazda put a individual check valve into each of the oil injector nozzles. Does anyone know if the check valve is at the base of the injector to block the backwards flow of oil? Or is it at the top of the injector to stop the backwards flow of air? __________________ ...shoot a mother-humpin moose, eight days of the week...