Which Spark Plug.

SPROCKET · Post by **SPROCKET** » Mon Aug 13, 2012 12:31 pm

Hi, Could anyone recommend a Spark Plug for a 1934 Morris Minor SV please. Thanks Jeff..

peterb · Post by **peterb** » Mon Aug 13, 2012 11:36 pm

Champion 7. 18mm 1/2 inch reach, extra range plugs were specified for my 1934 side-valve Minor, and seem to be ok.
May not be available, but plenty of alternatives...
The Green Spark Plug Co. has information.
Helpful company and reasonable prices.

http://www.gsparkplug.com/shop/champion-7.html

SPROCKET · Post by **SPROCKET** » Tue Aug 14, 2012 8:34 pm

Thanks Peter, Phoned them today and they recommended KLG ML50,, so ordered 4. Thanks for your help....Jeff...Oh...If I wanted to order a new clutch plate, any ideas were I could order one from.?

Post by **Ian Grace** » Tue Aug 14, 2012 9:07 pm

You can get all of the cluch parts you need from Mike Dowley at Sports and Vintage Motors - call Mike on 01939/210458 - and please mention the VMR as Mike sponsors our Summer Rallies!

SPROCKET · Post by **SPROCKET** » Wed Aug 15, 2012 8:34 am

Great Stuff, Thanks again for your help....Jeff..

Trevor Wilkinson · Post by **Trevor Wilkinson** » Wed Aug 15, 2012 11:08 am

I tried a set of KLG ML 50 in my ,34 Minor and found them to be unsuitable, they ran much too hot under load, climbing a long hill, which caused the mixture to ignite during intake with the resultant backfiring through the carb.
Will be very interested to hear how you find them.

SPROCKET · Post by **SPROCKET** » Wed Aug 15, 2012 12:59 pm

Thats not good news Trevor, got them now....what did you use instead then..

Trevor Wilkinson · Post by **Trevor Wilkinson** » Wed Aug 15, 2012 1:40 pm

I'm running on Lodge CB 3 unfortunately no longer made, the KLG was supposed to be the equivelant but it's heat range is not the same. Before that I was using 14mm plugs with thread converters, ran OK but didn't look right.

peterb · Post by **peterb** » Wed Aug 15, 2012 8:32 pm

The Champion 7 has a 1/2" reach. The KLG ML50 has a 3/4" reach. Maybe the reason for running hot.
The term "Extra Range" is not the same as "Extra Reach" both found on plug descriptions - confusing.
The 1/2" reach plug is fairly well recessed in the head plug hole.
Hope this helps.
The GSP Co may refund if you haven't fitted them yet.

Trevor Wilkinson · Post by **Trevor Wilkinson** » Wed Aug 15, 2012 9:04 pm

The CB3 is also 3/4" reach and although reaching the bottom of the thread it is still recessed in the head.
3/4" reach plugs were specified for the SV Minor but not for the '34 model.

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