Apparently, after being torqued down for 40 + years, some of the tube nuts on the brake lines have become flared, or "bell-mouthed" themselves. I found this when I tried to put some unions on these and they wouldn't go in because of this effect.
The two nuts on the output ports of the MC suffer from this, and although they will go in the ports, there is resistance which would seem to keep the full force of the nut's torque being applied to the flare to seal it.
Take a look at the nut on the left compared to a new nut on the right. see the unthreaded leader at the tip that applies the pressure to the backside of the flare ? That is where it is splayed out in a bell shape. It doesn't look like much in the picture, but it is enough to prevent it from working in some fittings.
This seems really weird, even for an Alfa. It implies that many of the fittings on the car need replacing. Anyone else seen this ?
Cheers,
Jeff
The two nuts on the output ports of the MC suffer from this, and although they will go in the ports, there is resistance which would seem to keep the full force of the nut's torque being applied to the flare to seal it.
Take a look at the nut on the left compared to a new nut on the right. see the unthreaded leader at the tip that applies the pressure to the backside of the flare ? That is where it is splayed out in a bell shape. It doesn't look like much in the picture, but it is enough to prevent it from working in some fittings.
This seems really weird, even for an Alfa. It implies that many of the fittings on the car need replacing. Anyone else seen this ?
Cheers,
Jeff
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