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H2ohs |
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#1
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Newbie ![]() Group: Members Posts: 15 Joined: 23-October 22 From: NH Member No.: 26,941 Region Association: North East States ![]() |
Hi All, took the car out of storage, cleaned, took for a 20 min ride. Was running great. 3 min from home, it started to run really rough. Not sure if it was on fire at this point, but barely made it home. got out and flames were shooting from the grid. Fire extinguisher was close, so put out pretty quickly. Rain tray melted and made a mess. The carb filter totally burned and destroyed. All fuel lines in good shape, no leaks. So what would make the carb catch on fire like this? float? timing? this pic is after trying to clean the fire extinguisher mess off- it still runs fine actually. Ideas?
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VaccaRabite |
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#2
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En Garde! ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Admin Posts: 13,479 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region ![]() |
Hi All, took the car out of storage, cleaned, took for a 20 min ride. Was running great. 3 min from home, it started to run really rough. Not sure if it was on fire at this point, but barely made it home. got out and flames were shooting from the grid. Fire extinguisher was close, so put out pretty quickly. Rain tray melted and made a mess. The carb filter totally burned and destroyed. All fuel lines in good shape, no leaks. So what would make the carb catch on fire like this? float? timing? it still runs fine actually. Ideas? So the car started popping and then caught fire? And the fire burned up the air cleaner first? I can almost promise you I know what happened. Pops through the carb tops (lean condition) are explosions that happen inside the air filters. If there is enough oil on the air cleaner this can catch fire and the cleaner burns. Melting the rain tray. Once it gets started there is lots of flammable stuff in the engine bay to keep it going. The air filter is coated in oil (thats how it filters, the air passes through an oil membrane and traps dirt that would get through the filter). And carbs that are out of tune will spit gas through the tops of the carb - this leads to the popping you hear. A filter fire would produce exactly the damage you are seeing, and would also explain why the car will still run - the fire did not get involved enough to catch all the other rubber and plastic. You got REALLY lucky! I was watching a friend of mine's 914 do exactly this just this weekend. Carbs were popping and it was night time. It looked like a rave was happening inside his air cleaner. Zach |
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