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I went out and started my truck just now and after idling for 2 seconds BANG. I thought the engine blew up, but it was the muffler.
1) I do not smell the smell of a "rich running vehicle", so I don't think it runs rich.
2) I ran it this morning and it started and ran fine.
3) It doesn't look like there was anything plugging the exhaust.
Exhaust is not original, but is at least 40+ years old and probably a good bit older.
I'm guessing you don't need to use the choke in this weather? Still, a short run earlier in the day could have left enough vapors in there to touch off. That kind of damage takes a good amount of pressure.
That's very impressive. I had something similar happen a few years back. Coming home from a car show at night, the engine was hot as we were about an hour into a two and a half hour journey. Suddenly the electrical system failed, the lights went out, and the engine stopped running...and then BANG! It sounded like a shot as the muffler blew. I think the fuel pump kept pumping gas into the cylinders after the electrical system quite, and since there was no spark, the unburned fuel traveled to the muffler. The muffler must have been hot enough to set it off.
Your situation is different but somehow fuel got into your muffler and something set it off. I was able to weld my muffler back up and keep using it. Yours looks a little worse than mine. Good luck.
I'm guessing you don't need to use the choke in this weather? Still, a short run earlier in the day could have left enough vapors in there to touch off. That kind of damage takes a good amount of pressure.
I did use the choke. I use the choke to start it every time no matter how hot the weather is, how hot the engine is, or how long it has sat since last ran. It's just habit and it helps start more consistently.
That's how i've driven it for 14 years.
I really really hope this was a 1-in-a-million thing and isn't going to happen regularly. I have a spare rusty muffler that will hopefully work until I buy a new one. I want the same thing: plain jane round muffler.
How old are you? Habits can change😊. Raw gas in a muffler makes a good bomb. Plus, too much gas can wash the cylinders. A warm engine does not need over rich mixtures. Give no choke while warm a try, that is the way it is meant to be.
How old are you? Habits can change😊. Raw gas in a muffler makes a good bomb. Plus, too much gas can wash the cylinders. A warm engine does not need over rich mixtures. Give no choke while warm a try, that is the way it is meant to be.
Ok I'll try. My issue with no-choke starts is it is generally more hesitant to start or it will fire then die.
Originally Posted by truckeemtnfords
I think it was showing its displeasure with the wire muffler hanger. At least no one got hurt and the damage is limited to the muffler.
Lol, It has one hanger from whoever installed it the first time many moons ago. One time I drove to a gathering and heard scraping, come to find out the one hanger was unbolted and I had no bolts or tools. Someone found me some bailing wire and I left it there as insurance after I fixed the mounting bolt.
Originally Posted by firstrider
Have a muffler if you are interested .
I'm good, thanks Denny, I bought one off rock auto.
Ok I'll try. My issue with no-choke starts is it is generally more hesitant to start or it will fire then die.
The thing about no choke starts is someone you still have to pump the throttle a couple of times, or at least I do in my 390. If your truck is sputtering and dying, you may as well. I'll defer to the old timers who drive flatheads regularly if they disagree.
The thing about no choke starts is someone you still have to pump the throttle a couple of times, or at least I do in my 390. If your truck is sputtering and dying, you may as well. I'll defer to the old timers who drive flatheads regularly if they disagree.
But thats the same thing as simply pressing the gas once and pulling the choke **** out a bit and starting. lol
and that's why I do it
Howdy Denny, Happy Independence Day! I'm trying to find a stock 2-speed 12-volt heater blower motor, since mine is dragging and squealing when 12 volts are applied. Can it be lubricated, somehow? I also need defrost hoses and switch panel and cables for my '56 F100 using the stock heater box without the fresh air option. (the intake vent has been deleted on my cab) I've been told that you're the man to ask, so here I am asking! I hope you can help me out, as my truck has been apart for over 40 years, and it's like a big model kit with no instructions. Thanks in advance for any and all help that you can provide!
Last edited by spacecowboy57!; Jul 4, 2024 at 11:44 AM.
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At least no one got hurt and the damage is limited to the muffler.
'56 F100 Heater problems!