Engine Miss
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Topic author - Posts: 5
- Joined: Fri Jan 10, 2020 5:56 pm
- First Name: wayne
- Last Name: thompson
- * REQUIRED* Type and Year of Model Ts owned: 1925 fordoor
- Location: Lebanon tn
Engine Miss
My 1925 Fordoor has an engine miss. So far I have installed new carb, installed new buzz coils, installed new timer, checked compression, checked for air leaks at intake, changed spark plugs but still have a miss. Compression is 48-50 psi. Any help would be appreciated.
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- Posts: 181
- Joined: Sun Jan 06, 2019 12:38 pm
- First Name: Jim
- Last Name: Sims
- * REQUIRED* Type and Year of Model Ts owned: 17 touring 20 roadster 21coupe 25tudor 25 pickup 27 coupe
- Location: Reed City, MI
- MTFCI Number: 13377
Re: Engine Miss
First find which cylinder is mis firing by shorting out each plug with a screw driver. Then check to see if you have a short in the coil box.
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- Posts: 180
- Joined: Sun Jan 06, 2019 6:49 pm
- First Name: Christopher
- Last Name: Instness
- * REQUIRED* Type and Year of Model Ts owned: 1915 runabout, 1923 speedster
- Location: Roseville, Ca
- MTFCA Number: 52552
Re: Engine Miss
Is it a constant miss or occasional or while accelerating?
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Topic author - Posts: 5
- Joined: Fri Jan 10, 2020 5:56 pm
- First Name: wayne
- Last Name: thompson
- * REQUIRED* Type and Year of Model Ts owned: 1925 fordoor
- Location: Lebanon tn
Re: Engine Miss
Occasional after checking the spark plugs all seem to be firing ok.
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- Posts: 85
- Joined: Mon Apr 22, 2019 4:57 pm
- First Name: Preston
- Last Name: Wells
- * REQUIRED* Type and Year of Model Ts owned: 1923 Runabout, 1926 TT Truck
- Location: Central Florida
- Board Member Since: 2008
Re: Engine Miss
Check for a broken or weak valve spring
70shovelhead
"There is more to life than what we see"
1923 T Roadster
1926 TT Truck
1948 Willys Pickup
1937 Harley WL45
1919 IHC Titan 10-20
"There is more to life than what we see"
1923 T Roadster
1926 TT Truck
1948 Willys Pickup
1937 Harley WL45
1919 IHC Titan 10-20
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- Posts: 229
- Joined: Tue Aug 13, 2019 5:43 am
- First Name: Robert
- Last Name: Thompson
- * REQUIRED* Type and Year of Model Ts owned: 1915 touring 1926 roadster
- Location: virginia
Re: Engine Miss
Check the firing order 1-2-4-3
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- Posts: 80
- Joined: Mon Jan 07, 2019 12:00 pm
- First Name: Peter
- Last Name: Claverie
- * REQUIRED* Type and Year of Model Ts owned: 1923 Touring
- Location: Memphis, TN
Re: Engine Miss
I vote for a come-and-go short inside the coil box. Or a bad connection inside the coil box.
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- Posts: 1352
- Joined: Sun Jan 06, 2019 8:20 pm
- First Name: Robert
- Last Name: Jablonski
- * REQUIRED* Type and Year of Model Ts owned: 1926 Runabout
- Location: New Jersey
- MTFCA Number: 407
- MTFCA Life Member: YES
- Board Member Since: 1999
Re: Engine Miss
You said you installed new buzz coils?.... I would ask you to contact someone who is knowledgeable in your area to calibrate coils not only for electrical values but also the physical positioning of the upper hardware and points..... Sometimes you do get a ignition miss especially noticeable at idle because the points are physically too close together.
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- Posts: 539
- Joined: Sun Jan 06, 2019 12:32 pm
- First Name: Ronald
- Last Name: Patterson
- Location: Petoskey, Michigan
- MTFCA Life Member: YES
- Board Member Since: 1999
Re: Engine Miss
Wayne
Have you recently driven the car in the rain or has it somehow gotten wet
Ron Patterson
Have you recently driven the car in the rain or has it somehow gotten wet
Ron Patterson