Injector removal question - ZR-1 Net Registry Forums

WydGlydJim · 08-09-2008

How do the injectors come loose from the injector housing?
Thanks.

Polo-1 · 08-09-2008

2 10mm bolts. pull the fuel rail up.

Ccmano · 08-09-2008

Once the screws are removed and the fuel line is disconnected you simply lift the whole assembly up and off. There is nothing holding the individual injectors into the housings other than the o-rings. Keep in mind they have been in there 18 years or so and will probably need some extra leverage to get started. I used a wooden hammer handle to pry the assembly off.

Good luck,

Hans

WydGlydJim · 08-09-2008

Quote:

Originally Posted by Ccmano

Once the screws are removed and the fuel line is disconnected you simply lift the whole assembly up and off. There is nothing holding the individual injectors into the housings other than the o-rings. Keep in mind they have been in there 18 years or so and will probably need some extra leverage to get started. I used a wooden hammer handle to pry the assembly off.

Good luck,

Hans

Thanks having never done it before, just didn't want to get too tuff with it, before I knew the only thing holding them in was the o-rings.

Z51JEFF · 08-09-2008

Its a little easier to work form the front and move to the back on the fuel rail.Work it a little,get it to move and them move back some and work it lose.

32valvZ · 08-09-2008

Also, no need to remove the fuel line. You can just lay both rails upside down on a towel on the windshield. I pulled all 16 out & installed all 16 like this.

08-09-2008

Just to add, for more information overload....

Squirt a little wd-40 or a penetrating lube down by the injectors to help with removal. If they are really stuck, you run the risk of having the injector pop out and fuel going everywhere.

You can do the replacement with the lines still attached, but you have better control on a work bench.

tomtom72 · 08-10-2008

I know that this is a bit rediculous, but if you have one of those Clubs....the end without the lock mechanism works perfectly as the "U" end fits the rail like it was made for it....stick it near an injector and lever against the I/H / cam cover....the rubber coating protects against any paint/powder coat marring....I doubled up a M/F towel & laid it along the cam cover for added protection.

Zr1 Destroyer · 08-12-2008

Quote:

Originally Posted by 32valvZ

Also, no need to remove the fuel line. You can just lay both rails upside down on a towel on the windshield. I pulled all 16 out & installed all 16 like this.

Yes...then bring them in an air conditioned house and do the swap on your wifes dining room table!!!

Polo-1 · 08-12-2008

and now that the easy part is done, you can start doing this.

08-09-2008	#1
WydGlydJim Join Date: Jan 2008 Location: Wichita, Ks. Posts: 318	Injector removal question How do the injectors come loose from the injector housing? Thanks. __________________ 2009 LS9 1990 LT-5/sold/Bought my Baby back 1994 Lingenfelter LT-5/sold 1973 LS4/sold

08-09-2008	#2
Polo-1 Join Date: Sep 2005 Location: Washington Posts: 952	Re: Injector removal question 2 10mm bolts. pull the fuel rail up.

08-09-2008	#3
Ccmano Join Date: Jun 2006 Location: Sparks, NV Posts: 2,843	Re: Injector removal question Once the screws are removed and the fuel line is disconnected you simply lift the whole assembly up and off. There is nothing holding the individual injectors into the housings other than the o-rings. Keep in mind they have been in there 18 years or so and will probably need some extra leverage to get started. I used a wooden hammer handle to pry the assembly off. Good luck, Hans

08-09-2008	#5
Z51JEFF Join Date: Dec 2007 Location: Fremont, CA Posts: 3,093	Re: Injector removal question Its a little easier to work form the front and move to the back on the fuel rail.Work it a little,get it to move and them move back some and work it lose.

08-09-2008	#6
32valvZ Join Date: Nov 2007 Location: Sunshine State Posts: 1,061	Re: Injector removal question Also, no need to remove the fuel line. You can just lay both rails upside down on a towel on the windshield. I pulled all 16 out & installed all 16 like this.

08-09-2008	#7
Jeffvette Guest Posts: n/a	Re: Injector removal question Just to add, for more information overload.... Squirt a little wd-40 or a penetrating lube down by the injectors to help with removal. If they are really stuck, you run the risk of having the injector pop out and fuel going everywhere. You can do the replacement with the lines still attached, but you have better control on a work bench.

08-10-2008	#8
tomtom72 Join Date: Dec 2004 Location: Jacksonville, FL USA Posts: 4,609	Re: Injector removal question I know that this is a bit rediculous, but if you have one of those Clubs....the end without the lock mechanism works perfectly as the "U" end fits the rail like it was made for it....stick it near an injector and lever against the I/H / cam cover....the rubber coating protects against any paint/powder coat marring....I doubled up a M/F towel & laid it along the cam cover for added protection. __________________ 1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member

08-12-2008	#10
Polo-1 Join Date: Sep 2005 Location: Washington Posts: 952	Re: Injector removal question and now that the easy part is done, you can start doing this.