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09-30-2019, 10:36 AM | #1 |
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Join Date: May 2010
Location: Long Island, NY
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Spark Plug Connectors
I find there are two different lengths of spark plug connectors in the 1930-'31 configuration. Which is the correct one, or are booth authentic for the Model "A"?
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Bob Bidonde |
09-30-2019, 10:45 AM | #2 |
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Re: Spark Plug Connectors
It has been my understanding that the longer of the two is for the Model B as the distributor is a little taller. The B distributor is taller to make room for the advance mechanism. Please correct me if I'm incorrect.
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The Master Cylinder Enjoying life at the beach in SoCal... |
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09-30-2019, 11:06 AM | #3 |
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Re: Spark Plug Connectors
I always thought that the longer spark plug connectors were used on the model B . I think that length of spark plugs was the reason for different length connectors . The 3X spark plugs stand taller than the C4 and some other spark plugs . If a TOO short connector is used it will contact the distributor cap body . When the spark plug connector contacts and melts a spot on the distributor cap it can cause a short between number 4 and number 3 cylinders . I prefer the longer connectors because they can be used with shorter spark plugs, model B's and digfferent aftermarket heads with different spark plug spacing .
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09-30-2019, 11:14 AM | #4 |
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Re: Spark Plug Connectors
I also agree with every thing that The Master cylinder said in post number two . I type slow and The Master Cylinder had already posted before I got through typing . Sorry .
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09-30-2019, 11:35 AM | #5 |
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Re: Spark Plug Connectors
According to The Restoration Guidelines page 2-12 Revised 2011:
"The correct connectors from the distributor to spark plugs were stamped from 26 gauge bronze which had a copper color. From the beginning of production through May 1930 the connector ends were symmetrical (rather than offset). A new design was introduced in June 1930 in which the ends were offset (for more efficient use of bronze sheet stock). Both types were 3 1/8" from the center of the hole to the end of the prongs. The spark plug nut was round, knurled brass, 7/16" in diameter and 7/32" high." |
09-30-2019, 12:37 PM | #6 |
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Re: Spark Plug Connectors
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Bob Bidonde Last edited by Bob Bidonde; 09-30-2019 at 12:45 PM. |
09-30-2019, 12:44 PM | #7 |
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Location: Farmington MI
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Re: Spark Plug Connectors
And every one of the repop connectors that I have seen are made of brass and not bronze. You can tell by the "yellowish" color.
Joe B |
09-30-2019, 02:34 PM | #8 |
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Re: Spark Plug Connectors
Snyder's sells both the brass and bronze.
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The Master Cylinder Enjoying life at the beach in SoCal... |
10-01-2019, 08:04 PM | #9 |
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Re: Spark Plug Connectors
How about these found on my 1930 Tudor !
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09-30-2019, 01:03 PM | #10 |
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Location: Glendale, AZ
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Re: Spark Plug Connectors
Order them at A&L in Connecticut and you get the real ones.
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09-30-2019, 01:45 PM | #11 |
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Re: Spark Plug Connectors
thanks Bob Bidonde!! I can sleep now!
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10-03-2019, 06:32 PM | #12 |
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Re: Spark Plug Connectors
Ask before you order the parts.
I only use the correct bronze ones, as the brass is too soft and more likely to come out of place. |
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