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Champion spark plug covers #673671
11/07/16 8:54 am
11/07/16 8:54 am
Joined: Dec 2015
Posts: 53
Nashville TN
J
jchildr Offline OP
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Nashville TN
Can anyone tell me the difference between champion spark plug covers part numbers D262 and WC548? Does WC stand for White Champion? Are they both bakelite? Do they both have the word "CHAMPION" spelled out on top in raised white letters. I have a 1969 bonneville and I am trying to find out which spark plug covers came on it from the factory. Thanks.

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Re: Champion spark plug covers [Re: jchildr] #673672
11/07/16 9:14 am
11/07/16 9:14 am
Joined: Dec 2004
Posts: 9,660
Scotland
kommando Offline
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Scotland
If you put the part numbers into Google image search you find the D262 is rubber and the WC548 is bakelite.

Re: Champion spark plug covers [Re: jchildr] #673695
11/07/16 12:50 pm
11/07/16 12:50 pm
Joined: Jan 2014
Posts: 2,251
South cone
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reverb Offline
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..I see many differences between the old ones and the reproductions; also the factory changed several times those caps.
The part number for my 48 is D105; I never saw one; I do not know the shape, or if it was from Bakelite (provably) or rubber.

-Then for the 70s models they have at least 3 models listed. I do not know if that D262 or 60-0262 is the same like the ones selling now.
-Then you have the 60-9831 Merit worke ? never ever saw one. I think that are the "metallic" ones.

-Then you have the 60-7125

-Then the WC200

-Then you have the later books that omit the reference for the caps! jumping from number 16 to number 18 in the references...



Re: Champion spark plug covers [Re: jchildr] #673709
11/07/16 3:27 pm
11/07/16 3:27 pm
Joined: Sep 2007
Posts: 1,606
Nor Cal
Roadwarrior Offline

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Nor Cal
I have had a lot of trouble with the champion plug caps. Gave them up.




Who are the brain police?



Re: Champion spark plug covers [Re: reverb] #673757
11/08/16 3:02 am
11/08/16 3:02 am
Joined: Jun 2002
Posts: 10,262
Scotland
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Stuart Offline
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Hi Fernando,

Originally Posted by reverb
Then for the 70s models they have at least 3 models listed. I do not know if that D262 or 60-0262 is the same like the ones selling now.
-Then the WC200

All the same. "60-0262" is the computerised all-numeric translation of "D262" - "D" is "60" and any number with less than four figures was made up with leading zeros. "WC200" is the Champion part number for the same thing. However, for some bizarre reason, '70-on triples had a different part number - D3043/60-3043 - for the same Champion cover. confused

If you search for "WC200", you'll get the correct cap:-

[Linked Image]

... on the other hand, this eBay listing is nonsense, it might be WC548 but it is not WC200.

Originally Posted by reverb
-Then you have the 60-9831 Merit worke ?

Like you, I have never seen originals; according to the T160 parts book, the "Merit-Werk" caps are 60-3891 (and what looks like the spark plug seal 60-3892); judging by the "France, Germany. Finland, Denmark, Switzerland, Sweden" listed under "Remarks", they are probably resistor plug caps? Although these come up in a Google Search using "triumph 60-3891", I don't know if they are correct.

Originally Posted by reverb
-Then you have the later books that omit the reference for the caps! jumping from number 16 to number 18 in the references...

Of the '82 books linked from http://vintagebikemagazine.com/links/parts-books/, only the TSS book omits "17 60-0262 WC200" as one of the cap options.

Hope this helps.

Regards,

Re: Champion spark plug covers [Re: jchildr] #673868
11/09/16 1:09 pm
11/09/16 1:09 pm
Joined: Dec 2015
Posts: 53
Nashville TN
J
jchildr Offline OP
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jchildr  Offline OP
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Nashville TN
Thanks everyone. Does a wc 200 also come in bakelite? My bike currently has champion spark plug caps in bakelite with the word "CHAMPION" written in raised black letters on top of the cap. Obviously they are not OEM. I am curious to what the part number is for these. Thanks.

Re: Champion spark plug covers [Re: jchildr] #673869
11/09/16 1:22 pm
11/09/16 1:22 pm
Joined: Dec 2015
Posts: 53
Nashville TN
J
jchildr Offline OP
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jchildr  Offline OP
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Nashville TN
I just found these bakelite caps with the raised black letters at http://mk1-performance-conversions.co.uk/miscellaneous.html. It says the part number is WC 548.

Re: Champion spark plug covers [Re: jchildr] #673948
11/10/16 6:30 am
11/10/16 6:30 am
Joined: Jun 2002
Posts: 10,262
Scotland
S
Stuart Offline
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Stuart  Offline
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Hi,

Originally Posted by jchildr
wc 200 also come in bakelite?

Uh-uh; afaict, WC200 was/is always thick plastic, fits tightly on plug and lead, can be quite hard when cold.

Originally Posted by jchildr
My bike currently has champion spark plug caps in bakelite with the word "CHAMPION" written in raised black letters on top of the cap. I am curious to what the part number is for these.

From the parts books, certainly from the late 1950's to the last Co-op twins, Meriden always used D262/60-0262 for the plug caps/covers.

However, what seems to have been done was different Champion covers were supplied at different times under the same Triumph part number - for example WC548 up to and during 1970, WC200 thereafter.

Moreover, WC548 seems to have been supplied with Lucas MA6 and MA12 coils, WC200 with Lucas 17M12 coils. That's why triples have a different Triumph part number from the twins for the same WC200 cover; triples never had MA coils - Siba (with a different plug cap) in '69, 17M12 '70-on.

So, at least in the '70 parts books, twins still had WC548 supplied as D262 while triples had WC200 supplied as D3043; thereafter, WC200 was supplied for both Triumph numbers.

Fwiw, BSA twin part numbers follow a similar pattern - 19-7625 '69-on, WC548 in '69/'70, WC200 '71-on. Otoh, R3 part numbers are something else entirely ... eek

Originally Posted by jchildr
I just found these bakelite caps with the raised black letters at http://mk1-performance-conversions.co.uk/miscellaneous.html. It says the part number is WC 548.

Are they the same as the ones on your bike already?

Hth.

Regards,

Re: Champion spark plug covers [Re: jchildr] #673957
11/10/16 8:38 am
11/10/16 8:38 am
Joined: Jan 2014
Posts: 2,251
South cone
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reverb Offline
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...hello Stuart, when I said " I do not know if that D262 or 60-0262 is the same like the ones selling now." I am referring that I see to sell ones with the painted letters and others without but looks similar; also may be other plastic. Then the rubberized ones.

-Do you say that Meriden always used the 262 but in the 77 T140s or so they put those metallic ones.
-And what s is the 60-7125? as mentioned

Re: Champion spark plug covers [Re: jchildr] #673979
11/10/16 11:23 am
11/10/16 11:23 am
Joined: Dec 2015
Posts: 53
Nashville TN
J
jchildr Offline OP
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Nashville TN
Thanks Stuart. Yes, the caps I see at http://mk1-performance-conversions.co.uk/miscellaneous.html are identical to the ones on my bike.

Re: Champion spark plug covers [Re: reverb] #674009
11/10/16 3:12 pm
11/10/16 3:12 pm
Joined: Jun 2002
Posts: 10,262
Scotland
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Stuart Offline
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Stuart  Offline
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Scotland
Hi Fernando,

Originally Posted by reverb
when I said " I do not know if that D262 or 60-0262 is the same like the ones selling now." I am referring that I see to sell ones with the painted letters and others without but looks similar; also may be other plastic. Then the rubberized ones.

Yes, "that D262 or 60-0262" is not a good guide, you must also know what Champion supplied to Triumph or BSA, Meriden or Small Heath at a certain time.

I can say definitely that, if Champion supplied WC200, they are these:-

Originally Posted by Stuart
[Linked Image]


... because they were fitted to the T160 I bought brand-new. They are a thick, malleable plastic, hard when cold but soften a little when warm - for example, before attempting to fit an HT lead, I warm the cap in hot water.

Also, I have been able to buy these since, not just from Meriden spares dealers but also from others - if you use an internet search engine, it should also return links to, say, Mini car spares dealers.

The OP, "jchildr", says these:-

[Linked Image]

... are the same as fitted to his bike; the seller (Mk1 Performance Conversions - a Mini car spares dealer) says these are WC548.

Note also that the seller says they are "in the correct Bakelite material" - Bakelite is a type of hard plastic; unfortunately, it is affected by ultraviolet and becomes brittle after a time when used/left outside. frown

Originally Posted by reverb
Do you say that Meriden always used the 262 but in the 77 T140s or so they put those metallic ones.

Yes, as far as I can tell, Meriden always used D262 or 60-0262:-

. in the "1976-1977 Published August 1976" parts book, page 83 lists "17 60-0262 Plug cover 2 CHAMPION";

. in the "1976 Published Feb. 1976" part book, page 79 lists "17 60-0262 Plug cover (Champion WC 200) 2";

. in the 1978 parts book, page 83 lists "17 60-0262 WC200 Plug cover 2 CHAMPION"
and "17 60-3891 MW1/10/51/10 Plug cover, suppressed (EUROPE) 2 MERIT-WORKE" (sic);

. in the "1979 Published October 1978" parts book, page 79 lists "17 60-0262 WC200 Plug cover 2 USA - non screened";

. in the "1979 Published April 1980" parts book, page 78 (sic) simply lists "17 60-0262 Plug cover 2";

... so are your "metallic ones" the 60-3891?

Originally Posted by reverb
-And what s is the 60-7125? as mentioned

It is listed in the "1980 Published February 1985"(!) and all 1982 parts books (except the TSS one) as part of:-
"17 60-0262 WC200 Plug cover 2 USA - non screened"
"17 60-7124 Plug cap - screened 2"
"17 60-7125 Cover - for cap screened 2"

Hope this helps.

Regards,

Re: Champion spark plug covers [Re: jchildr] #674116
11/11/16 1:59 pm
11/11/16 1:59 pm
Joined: Dec 2015
Posts: 53
Nashville TN
J
jchildr Offline OP
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Posts: 53
Nashville TN
Thanks everyone for all the info. I hate to beat this thing to death, but I have one more question. I noticed on some Champion WC 548 bakelite caps, "CHAMPION" is spelled on top in raised white letters. On other Champion WC 548 bakelite caps, "CHAMPION" is spelled on top in raised black letters. Which ones did Triumph use as OEM, white letters, black letters, or both. Was it based on year model? Was it based on whatever Triumph had. My 1969 bonneville was restored with the black letter caps. I see a lot of restored 60's bonneville with white letter caps. Just curious. Thanks.

Re: Champion spark plug covers [Re: jchildr] #674118
11/11/16 2:12 pm
11/11/16 2:12 pm
Joined: Oct 2006
Posts: 2,957
Elburn, Ill. USA
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Irish Swede Offline
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Elburn, Ill. USA
The latest complete and original Triumph I own is a '72 500cc "Daytona," which has been mine since 1974, with only about 550 miles on it at that time.

It still has it's original spark plug covers, and they are the same as in the number 1 and 2 photos above, black with white raised lettering.

Re: Champion spark plug covers [Re: jchildr] #674126
11/11/16 3:29 pm
11/11/16 3:29 pm
Joined: Dec 2015
Posts: 53
Nashville TN
J
jchildr Offline OP
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Posts: 53
Nashville TN
Thanks. The plug caps in photos 1 and 2 are WC 200 plug caps. I was inquiring about WC 548 plug caps, which would have been on 60's bikes and maybe 1970 as far as I know.

Last edited by jchildr; 11/12/16 8:39 am.
Re: Champion spark plug covers [Re: jchildr] #674704
11/16/16 10:50 pm
11/16/16 10:50 pm
Joined: Jan 2012
Posts: 78
Sylvan Lake, MI
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gcuz Offline
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Sylvan Lake, MI
In the '50s Triumph used a mix of KLG, Lodge, and early-style Champion WC548 caps.

I personally would use any of the above on a restoration up to about 1964, at which point they definitely moved into the later style WC458 that has the white "Champion" lettering on it.

In 1971, they moved to the WC200 style - rubber "pear" shaped caps, also with white lettering.

I'm including a pic of an even later WCX600 - not sure when those came into use.

[Linked Image]

[Linked Image]

[Linked Image]

Last edited by gcuz; 11/17/16 10:10 am.

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