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Old 06-10-2017, 01:52 PM   #1
Minn-Tex Lee
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Default My miss is gone

For a year I have been fighting a severe miss. I went through all of the normal suggestions -testing pressure, soaking cylinders with various fluids, changing out the plugs, new coil etc. This year I was about to check for a broken valve spring.
I started the engine and sure enough it still missed for about 15 seconds and then it purred like a kitten. I took it for a 10 mile ride with no problem. My questions are these:
1) What do you think the problem was?
2) What are the chances the problem will return?

I was hoping to get a chance to use my new 4 trace 4 color scope to see if it was electrical but I guess that wont be necessary.
It did, by the way, go through a Minnesota freeze thaw cycle in an unheated garage.
Thanks for your thoughts
Lee
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Old 06-10-2017, 01:56 PM   #2
ronn
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Default Re: My miss is gone

keep your chin up- plenty of women out there.............!
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Old 06-10-2017, 01:56 PM   #3
fastroadster
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Default Re: My miss is gone

Stuck valve???
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Old 06-10-2017, 02:34 PM   #4
Patrick L.
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Default Re: My miss is gone

Quote:
Originally Posted by fastroadster View Post
Stuck valve???



My thought too.
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Old 06-10-2017, 03:40 PM   #5
Dollar Bill
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Default Re: My miss is gone

At a minimum, i recommend adding MMO or ATF to your fuel tank. Helps with sticky valves and it makes corn fuel more palatable.
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Old 06-10-2017, 03:42 PM   #6
JOHN CT
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Default Re: My miss is gone

Put 4 oz MMO in the gas tank and go for a ride. It wouldn't hurt.
I agree with a stuck valve
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Old 06-10-2017, 03:45 PM   #7
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Default Re: My miss is gone

Sticking vavle, mmo in the gas tank and some in the oil should keep it running well !
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Old 06-10-2017, 04:01 PM   #8
Tom Wesenberg
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Default Re: My miss is gone

I agree with all the above, except #2.
A good woman is getting hard to find.
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Old 06-10-2017, 04:02 PM   #9
H. L. Chauvin
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Default Re: My miss is gone

Hi Lee,

Not much difference between a difficult problem with a Miss; and a difficult problem with a Model A ....

With your questions:

"1) What do you think the problem was?" and,
"2) What are the chances the problem will return?"

My guesses:

1) The Model A got fed up with the Miss; and,

2) No, she's not coming back!
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Old 06-10-2017, 06:12 PM   #10
captndan
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Default Re: My miss is gone

Quote:
Originally Posted by H. L. Chauvin View Post
Hi Lee,

Not much difference between a difficult problem with a Miss; and a difficult problem with a Model A ....

With your questions:

"1) What do you think the problem was?" and,
"2) What are the chances the problem will return?"

My guesses:

1) The Model A got fed up with the Miss; and,

2) No, she's not coming back!
That really hurts!
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Old 06-10-2017, 06:54 PM   #11
Ed H.
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Default Re: My miss is gone

Sounds like a vacuum leak to me. Once the eng got warm what ever was not sealing expanded to make a seal. I would replace the intake gasket, carefully look it over for signs of leakage.

If it was a valve it would make a ticking or a some sort of noise prior to coming loose.
My .02
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Old 06-11-2017, 07:21 AM   #12
Growley bear
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Default Re: My miss is gone

Not a good sign when they fix themselves.
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Old 06-11-2017, 03:52 PM   #13
Minn-Tex Lee
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Default Re: My miss is gone

Thanks for all of the replays. I do not use corn base fuel, but none the less I will take the advise and start adding MMO to my fuel each time I fill up.
Lee
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Old 06-12-2017, 08:08 AM   #14
ronn
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Default Re: My miss is gone

I agree with all the above, except #2.
A good woman is getting hard to find.

for awhile, Model A's were tough to find at the right price and as of late, Im seeing some fantastic deals!

gotta know where to look.
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Old 06-12-2017, 01:19 PM   #15
H. L. Chauvin
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Default Re: My miss is gone

Per Ronn's Reply #14, appears lots of 28-31 Model A's are advertised on the market in the past few years.

Looks like we have more Model A's offered than that of interested Model A buyers.

Car collector/investor whom I bought my 1930 Town Sedan was disappointed that after paying for storage area for mine for 20 years, Model A prices did not increase that much; however, for his investment purchases, selling prices for his collection of later 50's - 60's cars went up considerably.

Last edited by H. L. Chauvin; 06-12-2017 at 01:21 PM. Reason: typo
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Old 06-12-2017, 02:35 PM   #16
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Default Re: My miss is gone

Good news !
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Old 06-12-2017, 05:20 PM   #17
H. L. Chauvin
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Default Re: My miss is gone

Re: My miss is gone.

What was her name?
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Old 06-13-2017, 11:20 AM   #18
Beater
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Default Re: My miss is gone

I think also a stuck / sticky valve. I also used to used MMO in the fuel every tankfull. for a sticky valve however ive had way better luck adding some good 2 cycle oil to the fuel
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Old 06-13-2017, 12:11 PM   #19
H. L. Chauvin
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Default Re: My miss is gone

About the time of WWI, commercial fishermen learned that their (2) cycle hit and miss engines used every day in their small boats had far less top of cylinder wear because of adding oil to fuel ..... many car owners in these coastal areas also heard of this fact and started adding a little oil to fuel during Model T days and Model A days.

Adding vintage commercially available top cylinder lubricant or Marvel "Mystery" Oil, (MMO), never was a "mystery" for those few who understood how it worked to add lubrication to upper engine pure non-lubricating gasoline.

Last edited by H. L. Chauvin; 06-13-2017 at 12:13 PM. Reason: typo
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Old 06-13-2017, 07:44 PM   #20
Jerry in Shasta
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Default Re: My miss is gone

Damn I hate it when they heal them selves!
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