Pic. part that cost over $100,00.

Lou from Wi. · Dec 30, 2014

Never saw anything like this in all my years. Wire pulled out of the copper fork on the condensor,causing misfire that the muffler had un burned gas fumes accumulating inside, Fired and BLAMM!!!!, son made it up to the top of the drive way. Plow truck is waiting for tomorrow so we can heat up the garage and fix a brake line that was hit with metal from the muffler.In all my years, I've never seen this happening, now my son re-connected the fork to the wire, and crimped-SOLDERED it back together as it is still a good condenser.Today son installed new muffler and tail pipe with new hanger and clamps, he did that outside of the garage in -6 below zero weather.Reason was he hates listening to a loud vehicle with no muffler and a good chance to burn the valves with no backpressure and cold air. After tomorrow, the plow truck will be back in service waiting on the next snow . Just thought you might be interested in such a profound FLUKE.This is on a 1972 F100 4X4 with a 390 cid engine.
Regards LOU.

JayinNY · Dec 30, 2014

My dad has an 82 f250 with a 400 CID engine, Timing was off or something and when ever you let off the gas going down a hill it would backfire so bad that it would blow the muffler apart muffler was under warranty, after about two of them the auto parts guy told him he wouldn't give them any more mufflers. Lol. My brother was driving it one time when it did that my dad told you have to let off the gas slow if you let off on it quick it would backfire!

Owen Aaland · Dec 30, 2014

I had a somewhat similar problem with a Renault Dalphine that I used to drive to commute to work. Most of the time it would run just fine but then would pop and backfire for a few seconds and then be fine again. That distributor had the condenser externally mounted. Instead of wire it had a rigid connector strap. I finally found the problem one night when it continues to run rough long enough to get the hood open to see what was going on. The connector strap had broken right at the condenser and I could see it spark sometimes. It is the kind of problem that can be found by using an oscilloscope if you can catch it while it is misbehaving.

casecollectorsc · Dec 30, 2014

Run two Dodge with Cummins for many, many miles with straight pipes.... no back pressure problems or valve problems.

old · Dec 30, 2014

That car brings back memories from my navy days. Had a friend well sort of a friend who got one cheap. It need to be rebuilt engine wise so I helped him. He loved it due to getting 55MPG plus. I had a Renault R10 and loved it till I total it twice. Last time I hit the brake pedal so hard I broke the pedal

JayinNY · Dec 30, 2014

I forgot to mention that trucks in great shape for 1972 wow!

Alan K · Dec 30, 2014

I had forgotten about Renault cars.

Alan K · Dec 30, 2014

I think the end came off of a condenser on my dads 1973 Ford one time when we were in town. I cant remember completely but I do remember I had to patch it up so we could get it going.

Steve@Advance · Dec 30, 2014

Might be a good time to drop in an electronic distributor...

howdy1960 · Dec 30, 2014

How many Daytona 500s were run without mufflers?
Had a 73 Chevy 3/4 ton 350 cid that I sub-contract plowed for a 1/2 season in CNY with out a muffler. Lady next door HATED when I went to work at 3 AM lol
Step-fathers 76 Dodge D100 with slant 6 no muffler 1 burnt valve while Mom's 77 Aspen slant 6 WITH muffler 1 burnt valve. Combined mileage of over 500,000 miles.
Moral of story: They will burn with or with out a muffler

gab · Dec 31, 2014

Your getting old, when I was a kid we'd blow them mufflers up on purpose. I had nice car and I bought a 59 Impala 4 dr for $50. for a hunting/fishing/screwing around car. An old guy had it and was clean as a whistle inside and out. We'd turn the key of going down a big hill/pump the gas a few times, turn key on kaboom, didn't get much longevity out of a muffler. I'd kill my kid if I caught him doing some of the dumb stuff we used to do.

Mike (WA) · Dec 31, 2014

I remember riding around with a neighbor kid doing that, in a blue bathtub Nash. The longer you turned the key off, the bigger the boom. Until we blew the exhaust manifold off. That was pretty much it for the Nash, IIRC.

Nebraska Cowman · Dec 31, 2014

Nice old Ford! The cab lights are a mice touch too. It makes it look like a work truck. Yeah, like the others I think mufflers are over-rated. I put dual straight pipes on my O4 Dodge Hemi when it was new and it has over 140,000 miles on it, mostly pulling a loaded trailer.

Mike M · Dec 31, 2014

Had similar thing happen in a GMC that had electronic ignition. Blew a NEW round muffler oval ! The ignition module was failing.
Wasn't the easiest thing to figure out either.

Eric in IL · Dec 31, 2014

The truck looks more like a 74 or 75 to me.

Nice condition though, none the less.

Lazy WP · Dec 31, 2014

I have always heard that open exhaust would burn valves, but in real life never seen it happen.
In my younger days, I had a 65 Ford with a pipe that almost made it out behind the front wheels. LOUD!! Had a 91 Ford diesel that had a straight pipe on it from the time I bought it. Ended up with well over 500,000 miles on it. Cops in Norton KS escorted me out of town twice, because it was too loud, according to them.

Now days, I don't think I can get one quiet enough!!!

merlynr · Dec 31, 2014

I had a 84 gmc that would backfire occasionally after going down a hill. A mechanic told me to clamp the hose shut from the air pollution pump and it fixed the problem. The actual trouble was a one-way valve in that rubber hose. I replaced it and trouble stayed away.

notjustair · Dec 31, 2014

I blew the manifold off one of my school buses. A Ford with the 429 - she backfired and that thing cracked like an eggshell. You want to to about loud. Try that V8 pulling a bus along. Whew. They had to pull the head because the engine sits down in the rails and some of the studs twisted off. That bus had the only 429 I will ever own.

Texasmark1 · Dec 31, 2014

Well when I was a kid I was not the perfect child.

When I was a teen, we used to get a big BANG out of driving down the road at about 40 mph (for a number) and turning the key off for 15 seconds or so, letting the exhaust system fill up with fuel/air mixture, then turning the key back on.....BOOM!!!!!

Ha. I blew the muffler off my dad's '56 Chevy station wagon once. He asked me about it and obviously, I didn't know a thing about it......little WHITE lie....don't count right! Ha!

Mark

sotxbill · Dec 31, 2014

No pipes or a crack close to the exhaust valve will allow cold air to warp a valve... Has nothing to do with a muffler.

pete 23 · Dec 31, 2014

Seeing this poor wire connection makes me wonder if some of the condenser complaints I am hearing about might just be due to poor external connections rather than the condenser itself.

Anonymous-0 · Jan 1, 2015

(quoted from post at 11:23:10 12/31/14) [b:aa09c90b05]The truck looks more like a 74 or 75 to me.[/b:aa09c90b05]

Nice condition though, none the less.

Yep, Ford went to that body style in 1973. Nice truck just the same.

racsan · Jan 1, 2015

(quoted from post at 06:23:10 12/31/14) The truck looks more like a 74 or 75 to me.

Nice condition though, none the less.

Grille assy is the 76/77 series. Vey nice older ford, maybe its had a body swap. Id hate to run something so nice of that vintage in the salt.

IH2444 · Jan 1, 2015

(quoted from post at 01:22:51 12/31/14) Might be a good time to drop in an electronic distributor...

Why? Then you just have more parts to break that can't be fixed with pliers.

I am at over 40k on my 72 F100 with std dist and plugs. Looked at plugs and still good. 40K since my last tuneup. Not bad.

Pic. part that cost over $100,00.

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