ilgrilleto
New member
- Joined
- Aug 26, 2019
- Messages
- 31
- Points
- 8
Hi Everyone,
Hope you're all doing well! I've been battling what I'm confident is a temperature issue for the past few weeks and wanted to see if anyone here could weigh in/assist. Apologies in advance for the novel below.
I have a 1972/73 Fiat 500 F/R (We're currently having an identity crisis) that came with what appears to be a fairly modified powertrain when purchased. I've attached an image of the engine bay for everyone's convenience.
Last year I had the original (to me) Dual Spark ignition system, and I took about a 150km ( 75km each way) road trip with my 500 with an average speed of about 80km/h. I didn't notice any issues on the way there, but on the way back I had issues with the engine whereas it was surging while at speed (approx 80km/h) and the engine wanted to stall when coming to a stop at stoplights/stop signs, etc. As the car was fairly new to me and I was planning to replace the ignition system anyways, I went ahead and ordered a 123 Ignition Distributor, New Coil, New Spark Plugs and Wires and installed everything. I took a a few short trips (approx 10-15km) and everything seemed great, but as winter was coming, that was it until this spring.
Last week was the first time on the road in months, and I noticed that after about a 10-15km drive, I was running into the issue where coming to a stop at a light/sign, the engine would want to stall, and if i didn't tap the accelerator it would die. I did notice that the engine bay door was hot (really hot!) to the touch, and the engine bay itself was like an oven. I thought the main culprit was the exhaust, and I had previously purchased DEI Titanium Exhaust wrap, so I figured why not and wrapped the exhaust. On a small trip today, I went about 30km (mixed speeds, between 80km/h and lower) one way and everything was fine until probably the last few minutes, where the stalling issue reared it's ugly head again. At this point I noted that the engine bay was nowhere near as hot as before. I let the car cool for about 30 minutes while I ran errands, and when I fired it back up, it ran beautifully. On my 30km trip back, about 15km in, I started experiencing the same issue again. Once I parked the car, I noticed the intake manifold was incredibly hot, as well as the surrounding tinware, and the distributor.
I strongly suspect the temperature that the intake manifold is getting too is leading to fuel vapourization, however at the point, any help/advice would be greatly appreciated. The engine doesn't appear to have a thermostat, so I can't leave that open to cool it. All tinware is intact, and fan appears to blow strongly, but it gets hot in there. If my theory is correct, what are some effective ways to keep everything cool? I know propping the engine bay compartment open is fairly popular.
Thanks in Advance!
Edit: Just a quick note, this is currently my ignition coil . From forum research, it appears I should be using a Bosch Blue coil with my 123 Ignition System which is currently en-route from Pelican Parts. I doubt this is the fix to my problem (would be nice!), though I'm going to take a short trip tomorrow and see what temperature my current coil gets too, however this will be resolved in 1-3 business days if FedEx is to believed.
Hope you're all doing well! I've been battling what I'm confident is a temperature issue for the past few weeks and wanted to see if anyone here could weigh in/assist. Apologies in advance for the novel below.
I have a 1972/73 Fiat 500 F/R (We're currently having an identity crisis) that came with what appears to be a fairly modified powertrain when purchased. I've attached an image of the engine bay for everyone's convenience.
Last year I had the original (to me) Dual Spark ignition system, and I took about a 150km ( 75km each way) road trip with my 500 with an average speed of about 80km/h. I didn't notice any issues on the way there, but on the way back I had issues with the engine whereas it was surging while at speed (approx 80km/h) and the engine wanted to stall when coming to a stop at stoplights/stop signs, etc. As the car was fairly new to me and I was planning to replace the ignition system anyways, I went ahead and ordered a 123 Ignition Distributor, New Coil, New Spark Plugs and Wires and installed everything. I took a a few short trips (approx 10-15km) and everything seemed great, but as winter was coming, that was it until this spring.
Last week was the first time on the road in months, and I noticed that after about a 10-15km drive, I was running into the issue where coming to a stop at a light/sign, the engine would want to stall, and if i didn't tap the accelerator it would die. I did notice that the engine bay door was hot (really hot!) to the touch, and the engine bay itself was like an oven. I thought the main culprit was the exhaust, and I had previously purchased DEI Titanium Exhaust wrap, so I figured why not and wrapped the exhaust. On a small trip today, I went about 30km (mixed speeds, between 80km/h and lower) one way and everything was fine until probably the last few minutes, where the stalling issue reared it's ugly head again. At this point I noted that the engine bay was nowhere near as hot as before. I let the car cool for about 30 minutes while I ran errands, and when I fired it back up, it ran beautifully. On my 30km trip back, about 15km in, I started experiencing the same issue again. Once I parked the car, I noticed the intake manifold was incredibly hot, as well as the surrounding tinware, and the distributor.
I strongly suspect the temperature that the intake manifold is getting too is leading to fuel vapourization, however at the point, any help/advice would be greatly appreciated. The engine doesn't appear to have a thermostat, so I can't leave that open to cool it. All tinware is intact, and fan appears to blow strongly, but it gets hot in there. If my theory is correct, what are some effective ways to keep everything cool? I know propping the engine bay compartment open is fairly popular.
Thanks in Advance!
Edit: Just a quick note, this is currently my ignition coil . From forum research, it appears I should be using a Bosch Blue coil with my 123 Ignition System which is currently en-route from Pelican Parts. I doubt this is the fix to my problem (would be nice!), though I'm going to take a short trip tomorrow and see what temperature my current coil gets too, however this will be resolved in 1-3 business days if FedEx is to believed.
Attachments
Last edited: