Engine/Transmission (1998.5 - 2002) injector hassle

[bandrew]

What part of installing injectors is the most difficult?? just kind of wondering because I have new mach 2s waiting to be put in.

 

[Gary - K7GLD]

Looks to me like everything that comes after lifting the hood is sort of a hassle - but then, I'm sorta lazy...

 

[Boondocker]

injector install

Getting up the nerve to crack open a perfectly good engine!



The # 5 & #6 cylinders are way back, awkward position, no leverage, some kind of special tools required.



You might want to try those first. You wouldn't want to get half way through and get stuck when you can get stuck from the word go.



I presume you have the famous instructions?

Don't even open the hood before reading them 4 or 5 times.





It only took me a couple of months to get ready



I wish a had a SBC clutch so I could say I wish I had Mach 2s



Neil

 

[Bob Wagner]

good advice Neil

 

[diesel4power]

Fuel line to #6 Injector is a real dog to crack loose. You will need a 19mm stubby wrench and some gut wrenching strength to do it. Make sure you pull the connector tubes up before pulling the Injectors and most importantly make sure they don't slide back into place before putting in the new Injectors, if not you will cause damage to the connecting tube and/or the Injector.



Paul

 

[gregdoerfler]

what else do you need to replace when you change injectors? copper washers,orings?

 

[thejeepdude]

I didn't have any major problems installing my injectors. Last time was my first and hopefully when my EDM's come it'll take less time, and since I'll be moving my 275's to my buddy's truck, I'll be up to 3 installs. In my mental preparation, the first thing I will try to do is get all the exact size wrenches and sockets set aside beforehand. My biggest hassle was having to get down off the truck, get another size, try it, go back to the toolbox, etc. As far as the #5/#6 cylinders go, I didn't use any different tools. I didn't have a stubby wrench, but was able to use my standard craftsman tools, although it was a royal PITA. The part I was most unsure about the first time was popping the old injectors out, but once I figured out how to pry them out with a bolt threaded in the top, it was pretty easy. Actually, I'd say the most annoying part was probably the blue injector line holders... seemed like I kept dropping things and have to go lookin on the frame rail or ground to find them. I think it took me about 3 hours the first time just because I was being overly cautious. Hopefully it won't take more than 1. 5 hour or so this time around. If you run into a qusetionable situation and don't know what to do, there's a lot of people on here that are willing to help ya out! Just remember, go slow, take your time to do it right, and you shouldn't have any serious problems.

 

[PC12Driver]

The most difficult part for me was removing the @#&@^$ rear cylinder head lifting bracket. I twisted the end off a perfectly good 3" 3/8" extension. Off to Sears to get a 6pt 15mm with a 1/2" drive, and the longest freakin 1/2" drive ratchet they had. No problems after that!



I started at the front of the engine so I would have practice by the time I got to the rear. And the stubby 19mm wrench is also a good tool to have for the back line. Also an in/lbs torque wrench for the injector hold down brackets.



I'd say the o-rings are typically reusable, but the copper washers are definitely not. They're good for one crush, and that's it. A new set of washers and o-rings is less than $20, so it's cheap insurance. I ordered a set and then found out the F1 EDMs come with new ones, so now I have a set for the next time.



Not hard at all. Like Boondocker says, it's just cracking into a perfectly good engine that gets ya!

 

[BillGotthelf]

After you change a few sets you can get the time down to about 45 minutes.

 

[GFoley]

1 - Wrestling the valve cover over the hoses on the right side of the engine.



2 - That lifting bracket, the #5 and #6.



3 - the fear that you won't be able to get it started after you install new injectors, and that somethign is gonna leak.

 

[darkhorse]

I'm appreciating this post as I have EDM mach 1. 5's on order & I've never had the valve cover off.

 

[thejeepdude]

Originally posted by PC12Driver

The most difficult part for me was removing the @#&@^$ rear cylinder head lifting bracket. I twisted the end off a perfectly good 3" 3/8" extension. Off to Sears to get a 6pt 15mm with a 1/2" drive, and the longest freakin 1/2" drive ratchet they had. No problems after that!

Oh yeah, forgot about that one. That thing was definitely a pain, although I didn't break anything. Glad I left it off so I don't have to mess with it this time around!

 

[rweis]

For #6 I used a crowfoot wrench. MUCH easier.



Agree with all the comments.



I tried to be ESPECIALLY careful with the injector tubes as they are a metal to metal fit. I loosened them and withdrew them to clear the injector. On installation, injector in but not tight, tube in but not tight, injector, tube, injector, tube, injector, tube, ... ... .



TORQUE to the correct specifications.



I would do it again and probably take 3 hours next time also. An extra 1 1/2 hours being careful is cheap insurance to spending hours redoing something.



Bob Weis

 

[Chris N5CWM]

I took some digital pictures when I installed 275s in mine.



Took me about 2 hours from opening the hood to shutting it.



Click on View Readers Rigs Gallery <<<< to the left, under my User ID, and then click on the Injector Install Images link.

 

[777 MECHANIC]

Change them 50+ times and you will have it down to 30 minutes. The injector line clamps do not need to come completly off. Just loosen them up enough to give you some room to move the line out from the crossover tube, This will save lots of time.

I have reused the copper washers several times with no problems.

Thats just me though.



MikeD

 

[bandrew]

yeah got them in last night. thanks guys. Could of killed myself when I put every thing back together and started it up just to find out that I had forgot to tightin #6 injector line. all and all it went pretty good it took me 3 hours but I never claimed to be at one with my tools. On the first test drive i unhooked my edge ez and it seem to have just a little more power than when I had the edge ez on without injectors. Today I'll play with the edge ez with the injectors and see what it is like

 

[Bob Wagner]

those mach 2's should have a whole lot more power than just an ez alone.



get on it!

 

[bandrew]

Well i guess i am slippin my clutch then, going to have to call southbend. My boost though still only comes up to 32psi and it doesn't seem to run any hotter than when i had just the ez hooked up.

 

[bandrew]

guys do you think 32-34 boost psi is right for mach 2 edms and empty I can't get the egt guage over 950'-1000'

 

[PC12Driver]

Your numbers sound close to mine. I'll get a solid 35 psi and 1,100-1,200 deg pre. Maybe your clutch is slipping a bit or you're running out of fuel on the top end. You DO have a fuel pressure gauge, don't you?