E21 project thread
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So I got the fuel rail dye checked and rewelded and still has a leak. This obviously means its something else. After thinking and thinking some more, I realized that the stock cup that the FPR o-ring goes into was tapered, just like the injector cups. When I modified the rail I had to make a new cup and weld it on. Doing so, the new cup is not tapered and I am assuming that the o-ring is not sealing properly due to this.
What I am thinking now is to cut off the FPR bracket and cup from the rail, weld on a nipple, then its just running a fuel hose to an aftermarket FPR. I didn't want to go this route before since I hate the look of those stupid adjustable FPR's with the gauge on it and junk. I then thought, maybe it won't be so bad. I can have the gauge on the FPR to dial in the pressure (3.5bar or roughly 50psi), unscrew the gauge from the FPR and screw in a plug. This way it wont look as stupid. Seems like the easiest route to take and less chance of leaking.
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Finally after what feels like a bajillion times trying to get this fuel rail to stop leaking its actually stopped leaking. The metal that these rails are made out of just do not weld well. So I ended up cutting off fpr bracket and cup, drilling/tapping a large nut and welding that to the rail. Then I covered the entire area with 2 layers of jb weld and 2 coats of KBS rust seal paint.
Leaking
Fixed
While all that was happening, I kept my sanity by doing other things such as...
Painting some emblems to match
And replacing US seatbelt/o2 sensor light with a blank piece
Now to mount the fpr, run longer hoses, put things back together and start tuning megasquirt! Calling on Snap!
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After work I started on getting things back together. I put some fuel sealant on the fuel rail fitting. That needs 24 hours to dry before allowing fuel through it, so I starting on the fpr mounts.
I took the left over aluminum stock from the oil catch can mount I made, cut and bent it to shape, drilled some holes and done! Sprayed it all black and waiting for it to dry. Tomorrow I will run new hoses and put more back together.
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Almost there bassface!!!
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Well got it all together and she fired right up! Idles super rich to the point of almost dying without having an IAC hooked up tho. Hhmmm
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After some setbacks Brian (Snap) and I got the car idling better with the megasquirt tune last week. Wasn't able to work on it all week, so today I fixed some minor leaks with sealant and am letting those dry over night. Tomorrow will hopefully be the day I take it for a test run when I get back from Woodstock, IL motorcycle swap meet. Let VEAL on tunerstudio do its thing and see what happens.
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I did a compression test today and compression on all cylinders checked out fine. Looks like all is good. My spark plug gap was really high tho, so I regapped them lower and seems to idle a lot smoother as well.
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typical moderator, always making themselves look good and deleting others
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This car drove.
For a whole 30 feet!
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