thats same as mine. what do the vents on the roof do? do they exhaust air from the passenger compartment or the engine bay. when my car did the exxon valdez and spilled LHM on the header which smoke came out of those vents as well as the vents at the rear of the decklid and the shark gills.
IMHO not very much. Not nearly enough at speed. There was an early Bora that had fabricated intake scoups attached to the, I've had no reports on their effectiveness or whether there were also modifications to route the air internally towhere??? Remember, the engine cover assembly is essentially trying to get airflow that enters the compartment from below to exit out those rear most quarter vents. It doesn't work very well and so the heat builds up, no fresh cool air enters this assembly and the entire rear structure (engine, sub-frame, hatch and body frame becomes a gigantic heat-sink. In my experience running WO the cover made no difference and allowed road debris to deposit over the entire assembly.
Heres an issue I could use some help with. Only happens when the car is hot. When I turn the key off, the car keeps running! I put a new ignition switch in from MIE this morning and it did NOT resolve the issue. The wiring at the switch looks intact. The first time it happened, I giggled the key a bit and got it to turn off. But subsequent times it would not turn off, thats why I changed out the ignition switch. I had to pull the fuel pump fuse to stop it once and I had to toggle the switch by the coil for the ignition systems, holding it in the middle to stall out the engine. If this isn't an ignition switch problem, what could it be? It only recently started happening. Past couple weeks. Interesting, even though the engine was off, the fans were still turning with the key out, but when I slammed the drivers door shut they turned off. Is there an actual ignition relay under the dash somwhere? I thought the ignition coil was wired diretly to the ignition switch. Thanks.
too late to edit the above but... the wiring diagram in the owners manual doesnt show an ignition relay but the MIE wiring diagram does show one for American cars. Just no idea where its located. Maybe it needs replacing or can be opened and the contacts cleaned.
If there is an ignition relay you should hear it click when you turn on the key. Perhaps one of the unswitched circuits is bleeding to a switched circuit. This can happen when a device is not properly grounded and it finds ground through some other device, usually a light bulb. Switched circuits should only have power when the ignition switch is on. Try removing one unswitched fuse at the time (for example: the interior light switch) and see if you can pinpoint the problem area. Ivan
Thanks Ivan, thats a good idea. Since its intermittent I will have to wait until it happens again and start pulling fuses, except the fuel pump one. I drove it today and it didn't happen, it turned off like normal but its only in the 80's today. The problem seems worse when its super hot out. Dean
In a state now far, far away ... and ... long, long ago I actually added relays to my starter/ignition switch circuits. I don't remember the specific reasons for that other than I was concerned about potentially burning it out from the starter motor load over time? I also don't ever remember having to replace my starter switch. I do remember the the starter not disengaging once and I was fortunate enough to have the total system disconnect inside the trunck. That was followed by a flatbed tow less than two blocks back to my home garage. I don't know about any MIE USA electrical schematic. I have the very last USA spec Bora manufactured and my car didn't have a relay... it has two now though! LOL. Not helpful I know. Disconnect the fuel pump and any buzzers then listen for a click. I did have what you describe happen on my 71 Espada why working on it once and I forget exactly why but it turned out to be something stupid Like Ivan described. That car also had an intermittent starter key at one time which turned out to be a $25 Bosch part. That's the only $25 part EVER on that car! All vintage Lamborghini parts went ballistic over 15 years ago. I'm guessing that from Lamborghini it's probably over $250 now whereas the Bosch direct part is probably now $50. Ah ... vintage exotic Italian cars.
I’ll listen for a relay and see. the lightbulb circuit bleeding current is interesting because when I closed the door the engine stopped. I thought the vibration reset a relay. But may have been the bleeding current hypothesis.
