The silver collars / spacer rings you get with the KG parts kit, are they required?
I have the injectors and wondered if there are any other ways of seating the inkectors in the plate and getting a good seal.
Thanks,
James
You can bodge it with a bit of cut fuel hose, but it\'s a bit of a bodge.
Speak to Kev (FD3UK) at BilletBitz - his lovely spanky rails come with some rather gorgeous spacers, dunno if they\'d work with KG rails?
It may help to know I have personally fitted many KG Parts 1680 kits to FD’s over the last 10 years and do not use these as the rubber seats inside the housing with no problems,
So you left them just wobbling around sat on the seal, with just the presure from the o-ring retaining lip sealing them?
if we are talking secondarys you need them in the lim
Quote from: SiH;672605So you left them just wobbling around sat on the seal, with just the presure from the o-ring retaining lip sealing them?
I ran my own FD like this for 5 years and have never had any leaks on any other FD\'s either
i wouldnt like to run the risk of relying on the oring without a sleeve any shrinkage of it could result in a fuel leak
Quote from: rbs14a;672668i wouldnt like to run the risk of relying on the oring without a sleeve any shrinkage of it could result in a fuel leak
And it does, but the O rings will last for as long as the engine and only need to be replaced if you disturb the injectors or rebuild the engine. On my FC they are perfectly fine with just the standard rubber injector mounting kit - the only weeping I had came from the mixing plates under the injector - who\'s o rings had not been changed for 15+ years !?
When I at the first kit I brought from Keith he did not supply me with sleeves that I had seen but I realised that the sleeves don\'t actually seal anything off, they just centralise the injector and this happens anyway when the injector is seated correctly.
It\'s the underside of the rubber seal that is the part that seals against the housing and seals against the housing and I must have now fitted these kits with no sleeves this way to 10 or 12 FD\'s over the years with never a leak or future leak ever.
Couple of things that may help about fitting the rail,
First I remove the small screws that hold the leg to the rail and put loctite on them, then I put the feet onto a flat surface to make sure the feet sit flat and push down gently on the rail whilst doing the little screws up,
This makes sure the feet are fully in the up position so the rail pulls down as tight as it was designed to do onto the injector seals in the port (so you don\'t get a leak).
Next once the brown diffusers are pulled out of the injector port I drop the injectors in after putting WD40 or the like on the injector rubbers, this is so they can slide and centralise on the seat also I use release oil to pop the injectors in the rail because if the rubber is dry it can tear.
Next, once the bolts are just entered with my hand I push down hard on the rail in the center between the injectors as this way you are seating the injectors with straight down pressure, then tighten the bolts with this pressure applied ,
If you just pull the bolts up without the above pressure applied you risk pulling the injectors over at an angle.
Indeed this can still happen even when using the sleeves if you don\'t follow the above procedure
Hope this helps anyone fitting this type of rail for the first time.
Quote from: rbs14a;672668i wouldnt like to run the risk of relying on the oring without a sleeve any shrinkage of it could result in a fuel leak
As you should see above the sleeve would have no bearing on your concerns because the sleeve does not actually seal off anything,
Hope this helps
The sleeve doesn\'t directly seal anything off, but it holds the o-ring in place and ensures that pressure is applied to maintain a proper seal. I\'ll get my paint skillz on the case when I can be arsed...