Do you recognize this "culprit"?

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Model T Ford Forum: Forum 2010: Do you recognize this "culprit"?
Top of pagePrevious messageNext messageBottom of page Link to this message  By paul griesse on Tuesday, August 10, 2010 - 01:04 pm:

Took my 1925 out for a drive Sat.---this littlr guy shut us down and blew out the muffler. do you know what it is? Paul
culprit


Top of pagePrevious messageNext messageBottom of page Link to this message  By John Berch on Tuesday, August 10, 2010 - 01:29 pm:

Looks like the head off a 16 penny nail. My question is, How were you able to find something that small after it blew out of the muffler?


Top of pagePrevious messageNext messageBottom of page Link to this message  By Gary Mittrucker on Tuesday, August 10, 2010 - 01:33 pm:

That looks like the little pin that holds the timer roller in place.

Stephen


Top of pagePrevious messageNext messageBottom of page Link to this message  By Henry Petrino on Tuesday, August 10, 2010 - 01:33 pm:

Camshaft gear dowel pin?


Top of pagePrevious messageNext messageBottom of page Link to this message  By John Berch on Tuesday, August 10, 2010 - 01:34 pm:

Sorry Paul, I misread your post. :-)


Top of pagePrevious messageNext messageBottom of page Link to this message  By John Berch on Tuesday, August 10, 2010 - 01:56 pm:

Rivet for the pawl lock on the emergency brake.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Tman on Tuesday, August 10, 2010 - 01:59 pm:

It looks like A finnegan pin in the muffler gear. Here is a site all about it.

http://www.doubletongued.org/index.php/dictionary/finnegan_pin/


Top of pagePrevious messageNext messageBottom of page Link to this message  By Jim Patrick - (2) '26's - Bartow, FL on Tuesday, August 10, 2010 - 02:12 pm:

I was thinking what Gary said. Roller pin. Jim Patrick


Top of pagePrevious messageNext messageBottom of page Link to this message  By paul griesse on Tuesday, August 10, 2010 - 04:37 pm:

Gary and Jim----RIGHT ON! Thats the pin which keeps the timer brush in place. We were cruising at 35 MPH, first a miss, then a BANG (the muffler exploding) then no power. I looked at the New Day timer first---the brush, cam bolt and sleeve were floating around inside. The car won`t run without the timer brush in place. I replaced all with an Anderson timer and made sure to tighten the cam bolt PROPERLY. Damn, these cars have a way of keeping us humble.....Paul


Top of pagePrevious messageNext messageBottom of page Link to this message  By Gary Mittrucker on Tuesday, August 10, 2010 - 05:08 pm:

Did your muffler actually blow up?

Stephen


Top of pagePrevious messageNext messageBottom of page Link to this message  By David_Cockey on Tuesday, August 10, 2010 - 05:08 pm:

Don't forget to reset the timing. Different types of timers have slightly different geometry. Anderson timers will be slightly retarded when used with a rod bent for a Ford roller timer. No idea how a New Day compares.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Noel Denis Chicoine, MD on Tuesday, August 10, 2010 - 07:29 pm:

Some idiot didn't tighten the cam nut on mine during our first tour. We got stuck in a low spot in the road in Custer State Park, with the engine sputtering and misssing badly. After checking everything else, I took off the timer and found the Anderson roller free on the camshaft, with the nut almost off the end of the camshaft. the pin must have fallen out when I took off the timer. An upholstery nail shortened with a wire cutter got us the last 40 miles home.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Warren Mortensen on Wednesday, August 11, 2010 - 06:31 am:

I'm trying to figure out how we all managed to get the same idiot to work on our cars? LOL


Top of pagePrevious messageNext messageBottom of page Link to this message  By Frank Harris on Wednesday, August 11, 2010 - 12:22 pm:

There are usually some disgronifications which only happen and are used in conjunction with muffler bearings but only on cars with underslung bell housings and aluminum plated hub caps and rubber connecting rods with celluloid pistons with rosty frosty piston rings.

These conditions are only present when in neutral without any sign of creeping with the clutch pedal depressed correctly and the gas cap hole cleaned out to allow a good flow of fuel.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Frank Harris on Wednesday, August 11, 2010 - 12:25 pm:

There are usually some disgronifications which only happen and are used in conjunction with muffler bearings but only on cars with underslung bell housings and aluminum plated hub caps and rubber connecting rods with celluloid pistons with rosty frosty piston rings.

These conditions are only present when in neutral without any sign of creeping with the clutch pedal depressed correctly and the gas cap hole cleaned out to allow a good flow of fuel.

Seriously, a back fire in a distributor equipped engine is usually caused by a bad consenser or a poor ground. With a Model T system it is intermittant spark which allows the muffler to get loaded with a raw fuel fumes and when the ignition makes contact again, off she goes.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Fred Dimock on Wednesday, August 11, 2010 - 01:13 pm:

OK let's get serious about this. The reason that people have are reporting the same problems on their Model Ts is that there are a lot of Model Ts and very few mechanical parts.

There were about 15,000,000 model Ts made. If each vehicle had 500 mechanical parts, of which 250 were prone to breakage, 3,750,000,000 parts could have a problem. If we describe “prone to breaking” as a 1 in 10,000 chance, that leaves us 375,000 possibilities of failure. Given 250 parts and an equal distribution of failure, that means that 1,500 of us will have the same part break. But the distribution of failure is not equal. Thus a more realistic view is to use the Pareto principle where 80% of the problems are caused by 20% of the items. Now we can say that 7,500 of us will have the same part break.

Compare this to my Audi A6, where only 5,000,000 have been made and there are 1500 potential problems. The chances that two of us will have the same problem are significantly less because there are fewer vehicles and more potential problems.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Jim Patrick - (2) '26's - Bartow, FL on Wednesday, August 11, 2010 - 01:33 pm:

Fred. That was interesting. If I'd had an instructor like you in college to explain it as well as you did, I'd have done better than a C- in Statistics. Jim Patrick


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