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Message |
'75 308 GT4 (Peter)
Intermediate Member
Username: Peter
Post Number: 2027
Registered: 12-2000
| | Posted on Saturday, September 21, 2002 - 1:33 pm: | |
The trick I learned with installing wires into these caps, were to trim off the insulation about 5/8" and expose the wire core. You then fold the wire core over the wire insulation and insert it into the cap, making sure the core faces the terminal screw-opening. When you install the screw, you have a guaranteed contact with the wire core (the screw will pierce through that first). |
michael marchese (Bigdog)
Junior Member
Username: Bigdog
Post Number: 52
Registered: 8-2001
| | Posted on Saturday, September 21, 2002 - 12:08 pm: | |
This thread may follow some others regarding the distributor caps, rotors and "ohming" out your plug wires, but I wanted to let everone know what could happen. I replaced my plug wires (cavis)and extenders this spring. At that time I examined my rotors, caps etc.. and except for a little cleaning it all seemed ok. Replaced the wires one bank at a time, first the 1-4, and it ran well then the 5-8, and it ran well. I drove the car and in August brought it to the Ferrari dealer for some work, and later called and spoke to the technician, inquiring about my car. The first words out of his mouth were how is that car running? He proceeded to tell me my rotors were fried down to the "plastic" and the distributor caps were damaged at the metal posts as though a lathe had been run across them. I couldn't believe it and inquired on ferrarichat a possible cause. Armed with Edward's reply and another friends insight I went to the shop and found my car in the condition as described.
I had to dig up two rotors for a 1980 308 2 valve (whew, they don't make/stock them) and replace both caps. You see a wire was not propely pierced and the resistance was too high, and it fried my rotors. The caps were damaged by the intense arking and cooked a groove right into each post on the cap, right through to the center where the piercing screws set.
My lesson? ohm each wire at the distributor post, and the extensions.
And just to let everone know, since there is discussion about making some rotors, in about 60 days I may have a source for the 2valve rotors, I will keep you posted. |
Edward Gault (Irfgt)
Intermediate Member
Username: Irfgt
Post Number: 1910
Registered: 2-2001
| | Posted on Tuesday, September 10, 2002 - 4:27 pm: | |
Usually the only thing that will effect a rotor is excess resistance in the wires or extenders or possibly an overheated camshaft. |
michael marchese (Bigdog)
Junior Member
Username: Bigdog
Post Number: 51
Registered: 8-2001
| | Posted on Tuesday, September 10, 2002 - 3:47 pm: | |
I replaced my 1980 308 plug wires (cavis) about 3k miles ago. At that time the rotors and distributor were in great shape. I recently brought my car to dealer for service and was told the rotors were "fried" down to the post, and no explanation as to how it may have happened. Anyone have a similiar experience or explanation?
The belts were recently replaced (1 year ago)and timing set.
Plug wires were done one bank at a time to insure everthing worked properly and it did.
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