Reply to "IR injection maintenance"

They’re TWM (now Borla) throttle bodies of the same era as your Haltec ECU. The fuel rail kits were standard items and the old TWM website use to have an exploded view and illustrated parts reference that called out each fuel rail part by number. I don’t believe the new site has this reference or if it does, I could never find it. In fact, though Borla have large bore IDA TBs listed, I’m not even sure they list the 48/50mm IDA style TBs anymore, but they do offer them on their “V-8 systems” which still have similar style modular fuel rails.

The next generation of their hardware used similar modular rails but the rails were mounted inboard and the ends had modular caps that tied the rails together and also allow mounting of other components such as regulators, gauges, sensors, etc.

That tube in your picture just has O-ring seals to each fuel rail and floats between the two rails so as to accommodate intakes with different center line distances between TBs.

Just replace the O-rings. It’s a 15-30 minute job to remove the rails, measure and buy a couple 25 cent O-rings. If you remove the two underside screws that mount each fuel rail, both rails on the bank will lift off the injectors and then use an offset or ratchet screw driver to remove the inside retaining caps. –Replace O-rings reverse assembly.

K