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1968 442 accessory fuse port & tach harness question??
My Father-in-law recently had the 400 block rebuilt. When I received the car, the tachometer was fluttering and didn't appear to work correctly. After I had petronix iginition was installed, tach completely stopped working. I purchased a new tach harness from Fusick hoping that would solve it. I have shop manual but don't see anything on the wiring for the tach. Is this to be installed on the coil or distributor??
Also when the motor was rebuilt, a cam similar to a W-30 was installed leaving the motor with 11' pounds of vacuum. I installed power master booster for the disk brakes along with Leeds electric vacuum pump. Need to be connected to fuse block when key is hot. I only see two accessory ports with "blades". Both are being used...one has a piggy back connector on it (top one). Can I do the same to the bottom one (#2 accessory fuse port)? Or does someone sell the blades that go into ports #3 and #4 and would these be "key" hot?
The fork terminal on the tach wire goes to the "-" terminal on the coil. The ring terminal goes on the back of the tach. The factory wire is actually shielded with an overbraid that is grounded to minimize radio static since that wire is now an antenna that runs very close to the radio.
I've found the fuse terminals but I'm not sure if the aux spade terminals are just Packard 56 terminals or special for the fuse box. I don't know what current that vacuum pump draws, but you may not want to run it through the fuse box anyway. Consider a power relay under the hood that's controlled by a switched circuit like the wiper power lead.
Just something I noticed in my days of pulling parts out of '68 and '69 A-body junkyard cars, and that is I never saw the brown wire for the tach with an overbraid that's grounded until the 1970 model year.
The fork terminal on the tach wire goes to the "-" terminal on the coil. The ring terminal goes on the back of the tach. The factory wire is actually shielded with an overbraid that is grounded to minimize radio static since that wire is now an antenna that runs very close to the radio.
I've found the fuse terminals but I'm not sure if the aux spade terminals are just Packard 56 terminals or special for the fuse box. I don't know what current that vacuum pump draws, but you may not want to run it through the fuse box anyway. Consider a power relay under the hood that's controlled by a switched circuit like the wiper power lead.
Copy that...thank you for the info. Do you know which side of the terminal is the "fused" or protected side? Right or left?
Copy that...thank you for the info. Do you know which side of the terminal is the "fused" or protected side? Right or left?
Actually, it depends. The safest thing to do is to pull the fuse and probe the contacts with a test light or voltmeter. The side that has power is not fused.
