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Sal Garfi
United Kingdom
35 Posts |
 Posted - 28 Feb 2017 : 09:43:26
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Hello All,
I have a simple question. My Norman has a Mariner 15 four stroke outboard and I don't have the right size spanner for the spark plugs. They are labelled as DPR6EA (with the number 9 underneath), so, are they a standard size (as on a car) or slightly smaller? Anyway, are spark plugs in general a standard size? To be honest, I have never put my mind to it.
Thanks.
Sal |
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df
United Kingdom
5994 Posts |
Posted - 28 Feb 2017 : 12:56:38
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I think they are 16mm (5/8") across the flats on those sort of plugs, probably 10mm or 12mm threads, old school car engines were generally 18mm threads using 13/16" sockets, modern cars tend to use the smaller sizes as do modern bikes.
NBAS--The communal colostomy bag of the boating community.
 Visit leomagill.co.uk |
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IanM
United Kingdom
2238 Posts |
Posted - 28 Feb 2017 : 13:20:46
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| I'm sure I have at least three different sizes of spark plug socket. The one I want is always the third one I try. |
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trevork
3949 Posts |
Posted - 28 Feb 2017 : 15:35:11
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| Ahhh well Ian, you will know which one to use next time then Ian! The third one you were going to try! |
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Sal Garfi
United Kingdom
35 Posts |
Posted - 01 Mar 2017 : 10:32:09
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I think that 16 mm might be right. As i said, the plugs, from the outside, look smaller than the car plugs I'm used to (I'm still living in the 1960-70s. Thanks
quote:
Originally posted by df
I think they are 16mm (5/8") across the flats on those sort of plugs, probably 10mm or 12mm threads, old school car engines were generally 18mm threads using 13/16" sockets, modern cars tend to use the smaller sizes as do modern bikes.
NBAS--The communal colostomy bag of the boating community.
Visit leomagill.co.uk
Sal |
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jud
United Kingdom
113 Posts |
Posted - 04 Mar 2017 : 11:36:59
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[quote]Originally posted by IanM
I'm sure I have at least three different sizes of spark plug socket. The one I want is always the third one I try.
/quote]
The one I want is normally the one in the box I've not bought with me. |
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Topic |
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Spark plugs
