This just goes bad to worse. I must have aggravated a borderline problem when I was testing for fuel pressure at the rail. I've got no idea how I could have caused this problem, but I never noticed a leak before a few days ago.

There appear to be two tiny pinhole leaks in the tail-end of my fuel rail. The holes let loose two a tiny little jets of fuel - almost atomized - right on top of my #4 intake. That's a sure recipe for fun! :(

So I pulled it, expecting to change it out with a spare from a 740. I realized, that despite the fact that they are nearly identical, the 240 rail has a fitting right next to the #4 injector, the 740 rail does not. Without that critical fitting, I can't swap these parts.

Figures. When I was repairing replacing the busted interior on this 1990 model, I couldn't find anything within 3 years of my model. How variable are these parts on the B230F engines? I know an 86 740's rail is different, what about an 87 240?

It is too late to head to the PnP yards today, but I'll head out tomorrow looking for a match. Can anyone give me advice on the interchange? From what I've found so far, I can't use a pre-1989 type. Would a later 740 or 940 rail work?

I considered soldering the holes shut, but the pinhole leaks are behind the #4 injector, below the intake line fitting. It is very weird that they are not at any of the seams - just right in the middle of the sidewall behind the fitting.

A replacement would be the safest solution, but has anyone ever soldered holes like that shut?