Snook

iTrader: (12)

do you guys have a gap between the metal injector cover and the rail when you tighten it down all the way?

I have no gap on the secondary injectors when I tightened the metal caps on but I have about a 1/8 or more of an inch gap for the primaries and i already broke one metal cover trying to tighten it down too far. glad I found a spare in the parts bin

Snook

iTrader: (12)

you guys are pretty unhelpful past the do the reliabilty mods comments huh

you can see big gap for the primary and no gap on the secondaries. Is this how everyone elses was? I have 850s in the primary rail and it was milled for them.

thanks

duboisr

Davids rail is milled 1/8 inch with 850 cc injectors . H e said there is no gap .He thinks there is no gap with stock parts as well .

skunks

i dont remember any gap with mines, then again, mines were stock

Snook

iTrader: (12)

david did mill my rail mines

why does mines got a gap

do you guys think fuel is going to come out of there?

duboisr

He said they are with in .001 of .125 thou . milled off . With good o-rings they should not leak . The seal is at the bottom .

duboisr

Are the bottom o-rings stock or new from another supplier , maybe bigger cross section ?

HeatTreated

Yanni,

Mine didnt have any play in the Primarys or Secondarys, but I also didnt remove the injectors from the rails.

Make sure and use 2 little washers inbetween the Primary Rail and Housing.

mad_7tist

you better still have the damn spacer plate

dgeesaman

iTrader: (7)

Exactly - there is an ~1/8" black plastic spacer that separates the primaries from the engine block. It needs to be in there.

Dave

mad_7tist

how did they go in? did you put some oil on them? maybe there is a burr or something in the block. realy if the bottom and top o-rings seal it is not a big deal. and you will find out if it leaks in a hurry!

dgeesaman

iTrader: (7)

It is a big deal - if you tighten the bolts without the spacer in place it will go in crooked and probably damage some very expensive parts, and probably leak too.

Dave

mad_7tist

i am talking about the injectors in the primary block. if the orings have seated ok it will not leak. the metal "cap" over them just keeps them from working their way out. the spacer that goes between the primary block and the engine is important because without it they will not seal correctly and likely leak a/f mix under boost

zUMIEz

iTrader: (2)

I would try re-seating your injectors to be sure they are in fully. If you are sure you have them in fully then the gap at the top won't matter. The problem is that if there is a gap that usually is a sign that the injector has not seated properly.

Snook

iTrader: (12)

wow!!!
thats more like it thanks for the replies and concern everyone

We are talking about the injectors going into the primary rail. I used engine oil all over the injectors to put them into the milled rail and they slid in no problem and I twisted a little and pushed down but both of them wont go down any further. I even broke one metal cap trying to force them down by tightening it! I do have the black spacer but that goes on the engine I dont have to worry about that yet. The reason the injectors wont go in any further is because it looks like its hitting some plastic on the injector up top or like duboisr said the o rings are too big or something. I dont think it will leak from everyones comments.

duboisr they are the o rings from rc eng. I had them cleaned! Also, good news I checked the injectors with a 9 volt battery and all of them clicked! Sometimes rc cleaned injectors stick if you dont use them right away and mine have been sitting for 4 months!

heat treated are you talking about the black spacer? primary rail to block?

James did you get my pm! Engine is no longer in my garage pm me back for details and any info you have about your source

THANKS everyone!!!!!

rotorbrain

check it out guys. . . his rail is milled for 850s. . . just like mine. has the same gap. the sealing is down at the o-rings. . . not at the top. you are completely fine. mine doesnt leak and i have the same amount of gap. DONT WORRY!!!

paul

RX794

What I did was I sent my primary injectors out to RC to get enlarged to 950cc's, so I wouldn't have this issue, same injector body, more flow.

Snook

iTrader: (12)

thats a good idea but boring out the secondaries to 1300 i feel is enough risk I dont need both sets of injectors bored out...at least my primary injectors which are stock secondaries should be reliable.

PAUL thanks for the reasurance I was certain I had them seated as best as possible...ill unscrew the cover a little too so it doesnt crack as well cause I have it on there tiiight! iill get that pic for david soon he is going to **** but please dont share it with anyone else!! maybe duboisr and thats it!!

duboisr

Do not unscrew just a little ,the screws may back out . Put a small washer under the top on each screw the thickness of the gap then tighten .