This really is a great story ...
So, Cesar comes over to the house yesterday to install some parts and to get a new tune. He had just left Morgan Performance with a sweet new mani ... my God it is BEAUTIFUL too. Anyway, we grab some food and let the car cool down.
We get back and start working. We are installing his Forge WG actuator, so we put some cardboard against the radiator to protect it. We pull out the fan and shroud and the intake for clearance. We scarred the rad a little behind the fan, so we toss in another piece of cardboard in that area for the re-install.
We get the actuator on and start to install the new boost solenoid ... which he didn't bring. So, we start to reinstall everything and plan to install the solenoid tonight. We put the fan back in and pull out the cardboard from behind it ... put in the intake, tighten the DV. All is good. Cesar went inside and I finished it all up.
My contacts had been blurry the entire night, so when Cesar came back I told him to double check the bay while I went to put in drops. He checks it over and I came back out and even gave it another glance. All was tight, all tools were put away.
So, we go out for a test drive. He lays on the throttle in 2nd ... 27 psi. We pull in to WalMart and turn it down. Another pull ... 26 psi. Turn it down. Another pull ... 25 psi ... we're good. He rolls in to 2nd and then 3rd ... 24.5 to 25 psi and holding ... all is well.
So, we're making our way back to my house and we see the tiniest red dot float over the windshield ... "Did you see that?"
"Yeah ... it looked like an ash or something."
"Yeah. Do you smell that? Is that coming from your car?"
"I think so. Is that the manifold?"
"I don't know. I don't think it should smell like that."
"Should I pull over of go back to the house?"
"Oh shit ... we didn't take out the second piece of cardboard did we?!?"
So, he pulls over and I hop out to see a faint orange glow from the hood vent. I rush and open the hood. the cardboard had leaned against the turbo at speed and ignited. There is about a 4" flame coming from the lower right side of the radiator. The air flow was keeping the flame from getting too large ... but now we're stopped.
The flame is growing exponentially. I start reaching for the corner of the cardboard in between the scalding hot radiator and searing hot manifold. The closer it gets to the top of the bay, the bigger the flame gets. After a few tries I get a good hold on it and toss what I can of it out the the side of the road. About half is still under the hood.
Cesar grabbed the hood and I quickly stamped out the flame on the grass beside the road before I burnt my neighborhood down, then went back to the car. There is still a decent sized chunk of cardboard burning about 8" across and about 12" high in the center of the radiator. The overflow hose has caught fire as well. We both start blowing on it to put out what we can.
The fire slowly grows smaller and dies out. Cesar cautiously turns on the ignition so see no screaming dash lights. the starter engages fine and the car starts. All temps are in check ... nothing is sparking, spraying or smoking aside from the few small cinders from the remaining cardboard.
We limp it back to the house and pull in to the garage. I go inside and put some Neosporin (all i had) on the couple of burns on my hand from hitting the manifold while reaching for the cardboard. We look over the engine bay to access the damage ...
The overflow hose is burnt badly in a spot about 4" long where it ignited. There is some ash around the AC compressor wiring and hose that runs just behind the radiator. There are a few scorch marks on the radiator and a few other pieces.
The real test is the AC ... I assumed the line was fine because a spray of pressurized R33 would have killed the fire, but the wiring could have been damaged. The AC kicks on and cold air flows from the vents. All seems well.
We patched the coolant overflow with some fuel line I had lying around and Cesar headed home. The car ran fine and he drove it in to work today. We were very lucky.
So, the moral of the story is to always check EVERY INCH of the engine bay after you finish a job ... and don't just check for tools. Walk back through every step you've taken and talk through it for good measure. I know that Cesar and I will ALWAYS check for flammable items in the bay ... even if we didn't put anything in there.
I know you guys are going to laugh about this, but it could honestly happen to any of us if we aren't careful. I don't want to see anyones car up in flames because of a simple oversight.