|
I replaced the fuel rail hoses on our '84 spider. With the correct ID hose (7.5mm IIRC) the hose is a tight fit onto the injectors and the fuel rail. The cup shaped 'washers' ("bushing" #3 in sketch below) seem to help keep the hose snug by preventing the ends of the hose from ballooning out.
Removing the one bolt under the fuel rail does allow you to manuever the assembly out. If you'd prefer to leave the injectors in place, then carefully remove the hoses from each (see next paragraph).
The Alfa shop manual says to use a 'welder' to remove the old hose. From the sketch it looks they mean a soldering iron - i.e., melt through the hose instead of slicing it with a knife. The idea is to avoid nicking the hose barbs leaving a pathway for leaks.
I did not use the IAP kits - I bought a couple of feet of 7.5mm hose and cut it to the required length. I also re-used the cup washers (the shop manual says to cut them off....). I did re-use one clamp where the hose is attached to the CSI (Cold Start Injector).
If you make the new hose pieces the same length as the original ones, when you bolt in the fuel rail, it tends to keep the hoses between the fuel rail and injectors secure because there isn't enough room for the hoses to back out. In other words, the hoses are not under tension but rather slightly compressed between the rail & injectors.
|