| Post your spring project pictures... |
Subject: Post your spring project pictures... by Matatk on 2011/3/20 13:33:20 Thought a megathread would be fun... This was my project yesterday, getting the rebuilt injectors installed and buttoning up the top end. Not so much a tech thread, this isn't a step by step, but gives a few pointers along the way. Newly rebuilt injectors from Jon:  New Mr Gasket 146 kit. You can see it fits the port size very well, only minor trimming for my siamesed runners:  Starting point (obviously already torn down to remove the injectors):  Injectors in. I noticed the gasket push pins didn't line up 100% with the manifold. Not sure if it's the edelbrock intake or the gaskets. I slotted the tabs a bit on the gasket, otherwise they bunched up:  I prefer to put the driver's side runner on first, then I fitted the fuel rail. One tip is to put all the lower runner bolts in before you put it on, otherwise the long ones won't fit past the valve covers:  I then loosely fit the passenger side runner once the fuel rail is on but not 100% buttoned up:  It is very important to pressurize the system now to check for leaks! I didn't and that was my mistake. I know better and just plain forgot. So after I had put the plenum partially on, I remembered. When I primed the pump, fuel sprayed everywhere!!! Ugh. Had to tear it apart again and found a nicked o-ring on my injector. Now why GM would put sharp edges on a fuel rail assembly is beyond me, but be careful:  The only solution to this is to replace the o-ring, obviously. I know our good friend Jon at FIC would have sent me one, but that's a waste of everyone's time and money. I went to O'Reilly and bought a fel-pro injector o-ring kit. This is viton/fuel safe. Make sure you give the counter monkey the part number #ES70599. It's 2.99 for a set of four. I almost punched the moron in the face who was working behind the counter when he told me there was no way to get a fuel injector o-ring without a car make/model:  After replacing that, I refitted everything and pressurized the system....success! Put everything back together with a few other minor hiccups, but nothing I couldn't handle. Because of the nicked o-ring, the job took twice as long as it should have. Oh well. Here she is as she sits:  A few other little tips: -I found I had a problem with a few of the bolts. I ended up chasing the threads in one of the manifold fuel rail mounts as well as one hole. I think it was due to the bolts, though. They had previous antiseize on them and I added a little more. I think there was just some gunk in there and it made it hard to thread. So I took all the bolts and cleaned them up with a die set. Remember they are metric, I think M8x1.25. Then I applied new antiseize and that helped significantly. -Remember the tv cable goes under the runners, the other cables over. Don't forget to reset the tv cable when done -Leave the lower runners not torqued when you install the upper plenum, then torque altogether. -Don't forget to reattach the MAP sensor under the plenum, as well as the CTS, TPS, IAC. Matthew So.....who's next??? |
