Injector installation (nozzle direction)

[fpchief]

I took great care removing my injectors and marking what hole they came out of. Took them to the shop and they cleaned and tested them. Got them back and no more tape on them for what hole and the shop said it does not matter. My thing is doesn't it matter what direction the fuel is shot out of the injector? The TM says basically remove injector and to install, put a new gasket on it and install it and makes no reference as to how to orient the holes for the spray....

Any advice?

 

[Katahdin]

Are the nozzle holes indexed differently? There's only one way to insert the injectors and plumb the lines back in.

 

[Menaces Nemesis]

All the injectors are the same, and they'll only fit-up one way. Especially since you just got em tuned, shouldn't make any difference which goes where. I'd suggest you anneal the copper washers that seal them to the heads before reinstall (if you haven't bought new ones). Also, a 12 gauge shotgun bore mop works great for cleaning out the pockets the injectors slide down into, and remember that the torque spec should be in INCH pounds (some TM's have the spec listed in foot pounds, which will snap the hold-downs.) - MN

 

[fpchief]

All the injectors are the same, and they'll only fit-up one way. Especially since you just got em tuned, shouldn't make any difference which goes where. I'd suggest you anneal the copper washers that seal them to the heads before reinstall (if you haven't bought new ones). Also, a 12 gauge shotgun bore mop works great for cleaning out the pockets the injectors slide down into, and remember that the torque spec should be in INCH pounds (some TM's have the spec listed in foot pounds, which will snap the hold-downs.) - MN

Great info and thanks. I found I have a cracked return line T so I am dead in water till I find one of those.

 

[fpchief]

Are the nozzle holes indexed differently? There's only one way to insert the injectors and plumb the lines back in.

I was way over thinking it. Thank you for the reply.

 

[Menaces Nemesis]

Great info and thanks. I found I have a cracked return line T so I am dead in water till I find one of those.

Complements of Frank8003... http://ph.parker.com/us/en/brass-flareless-tube-fitting-hi-duty/172hd-4-2/#tech-specifications

From this thread on return line fittings... https://www.steelsoldiers.com/showthread.php?127786-M35a2-injector-return-line-fittings

 

[fpchief]

Compliments of Frank8003... http://ph.parker.com/us/en/brass-flareless-tube-fitting-hi-duty/172hd-4-2/#tech-specifications

It is a T on top of injector.

 

[Menaces Nemesis]

It is a T on top of injector.

Yep, my brain went directly to flame heater line Tee... but I believe the links above may help for the injector Tee.

 

[fpchief]

Yep, my brain went directly to flame heater feed line Tee... but I believe the links above may help for the injector Tee.

I called eastern to see if they had one laying around and awaiting a call back.

 

[Menaces Nemesis]

I just checked the price on a new one... thought they were brass, but they're priced like gold ($35-$40). Hopefully eastern/C&C surplus/Boyce Equipment, etc. can help you out.

https://www.amazon.com/Parker-172HD...d=1536192699&sr=8-1&keywords=parker+172HD-4-2

 

[fpchief]

I just checked the price on a new one... thought they were brass, but they're priced like gold ($35-$40). Hopefully eastern/C&C surplus/Boyce Equipment, etc. can help you out.

https://www.amazon.com/Parker-172HD...d=1536192699&sr=8-1&keywords=parker+172HD-4-2

Where did you see new ones at? I can't find any.

 

[Menaces Nemesis]

In the Amazon link in posts #10 and #11, and...
https://www.radwell.com/en-US/Buy/PARKER FLUID CONNECTORS/172HD42 (min 10 ea.)
http://www.lesman.com/acatalog/Parker-Hi-Duty-Brass-Fitting-172HD.html

 

[rustystud]

It is a T on top of injector.

You can get this fitting from any "Parker" hydraulic store.

 

[fpchief]

I just checked the price on a new one... thought they were brass, but they're priced like gold ($35-$40). Hopefully eastern/C&C surplus/Boyce Equipment, etc. can help you out.

https://www.amazon.com/Parker-172HD...d=1536192699&sr=8-1&keywords=parker+172HD-4-2

Holy Overpriced Fittings Batman....and take 1-2 months to ship...

 

[fpchief]

Was busy installing the new injector lines and was attaching #6 to the nozzle and looked over and saw this...**** good way to fall backwards off the truck.