my engine is coughing

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Re: my engine is coughing

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Re: my engine is coughing

Postby rickf » July 14th, 2018, 4:41 pm

That is a possibility, or the accelerator pump is starting to go.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
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Re: my engine is coughing

Postby acudanut » July 14th, 2018, 8:32 pm

elmer wrote:Hi,hear can see the cap and the screw

Image

Image

Elmer


Very, very small pic. Anything bigger please :)
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Re: my engine is coughing

Postby elmer » July 15th, 2018, 11:02 am

Sorry. When I want to insert pics from my ipad its are always small. Here you have them in normal size


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Re: my engine is coughing

Postby elmer » July 21st, 2018, 4:10 am

Hi,already started another A2 weekend......
I got the engine to be more regular when I drive although it still has some failure when you are in the process of acceleration between gear and gear.Its look like as small cuts or chokes.I give more rich mixture but remains the same. The idle idle is perfect and when I accelerate if The A2 is stopped it is also perfect (no failures) but driving I have not been able to solve those small mistakes.
The other day when I cleaned the carburetor I realized that the idle needle didn’t have the small O-ring washer. I mounted the carburator again without the Washer but later I regretted having done it, I removed it again and put a new washer that I had. When I started the engine had a very irregular idle and as I saw that the engine was much worse that before, I removed the washer again. What do you think about? Should I reinstall it? It is important? I do not know what to do.I remember that.... If it works, do not touch it
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Re: my engine is coughing

Postby elmer » July 21st, 2018, 11:50 am

Finally I preferred to install th small O ring washer and everything has been exactly the same. It seems that everything is going well but it has those small faults / chokes while you are driving. If tomorrow I can make a short video I'll put it in the forum.
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Re: my engine is coughing

Postby elmer » July 22nd, 2018, 12:56 pm

Hello everyone,
As I had a new spare coil, a capacitor and time I wanted to do a test and I replaced the originals. Everything is still the same. My A2 still has those little flaws/chokes while yuu are driving.
What is the difference between these coils
On the order hand ,I saw that the distributor cap has a small break. Can it be important? Is it better to replace the lid with a new one?
Pics

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Image

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Re: my engine is coughing

Postby rickf » July 22nd, 2018, 1:14 pm

The piece missing from the cap will not affect the way it runs since it is not near the terminals. The older coil is an original USA made coil, the shiny one is a Chinese made coil. As far as the gasket under the idle jet, as long as the jet makes good contact with the large gasket on top of the bowl that is all that is important. The one under the jet is basically there to hold it against the top gasket and I have found that a lot of newer 13660 A and B carb do not have the gasket nor do they have any ledge in there for it to set on.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
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Re: my engine is coughing

Postby elmer » August 24th, 2018, 8:53 am

Hi, Finally I was able to solve the problem with my engine. After checking the carburetor, coil, cables, etc ... I realized that I could not advance the ignition more than I had it because it touched the oil filter.
In different threads I read that it was a very common problem that the oil pump was badly installed. I feared the worst and I thought that the only solution was to disassemble the engine and install it well. Finally with my mechanic, an old good mechanic decided to make a new intermediate drive shaft changing a bit the position of the notch of the top so that the whole dealer turned a little and was in a situation that could do the timming well. We had to do the piece twice but in the end it was perfect. It was not easy because it was a special piece-
With the correct timming I have fixed all the problems and I am very happy because I did not have to disassemble the engine
Regards

INTERMEDIATE DRIVE SHAFT (original)
Image

OLD DISTRIBUTOR´POSITION (max on right,timing no OK))
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NEW DISTRIBUTOR´POSITION for correct timing
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Re: my engine is coughing

Postby rickf » August 24th, 2018, 11:19 am

Your picture of that shaft says "original", Is that how it was when you took it out? If so then someone else already had modified it. Resourceful mechanic, good man to have around. :mrgreen:
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
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Re: my engine is coughing

Postby Fil Bonica » August 24th, 2018, 1:13 pm

That fix coukd really give any future mechanic fits trying to time the engine by the book.

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Re: my engine is coughing

Postby elmer » August 24th, 2018, 3:03 pm

rickf wrote:Your picture of that shaft says "original", Is that how it was when you took it out? If so then someone else already had modified it. Resourceful mechanic, good man to have around. :mrgreen:


Hi Rick. That piece is the one that takes out.
thank you for your observation. I will keep it in mind in case I have to make some repairs in the future. Could you send a photo of the original NOS piece?
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Re: my engine is coughing

Postby rickf » August 24th, 2018, 6:45 pm

I don't have one handy and I am trying to get ready for a trip. The slots should be pretty close to inline with each other besides the one being offset to one side a bit.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
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Re: my engine is coughing

Postby m3a1 » August 24th, 2018, 9:00 pm

Very clever, but I agree with Fil. The next guy is really gonna be scratching his head. Ah well, ya gotta do what ya gotta do, right?
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Re: my engine is coughing

Postby elmer » August 25th, 2018, 7:09 am

Fil Bonica wrote:That fix coukd really give any future mechanic fits trying to time the engine by the book.

Fil Bonica


Hi fil,
what would be the problem. sorry for the question but, I am not very good with very technical repairs but I really like to understand things. If a future mechanic wanted to do the timming with a light ,what would be the problem it would have?

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Re: my engine is coughing

Postby rickf » August 25th, 2018, 8:01 am

The only time there would be a problem would be if the next person pulled the oil pump and put in a new one and installed it correctly. Then he would run into the same problem you did. His solution would be simpler though because all he would have to do is get a factory intermediate shaft and pop it in and he would be right back to a stock engine. I have several distributors where someone took the dog off of the bottom of the shaft, rotated it, and then drilled a new hole and pinned it back on in a new position. That did exactly the same thing you did Elmer. My first engine was the exact same way. Don't worry about it. You and I had to figure it out as have many others obviously. They will continue to do so. If you ever pull the engine then that is the time to put it all right.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
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