New Trusty owner

This topic contains 4 replies, has 4 voices, and was last updated by Profile photo of trustydan trustydan 5 days, 18 hours ago.

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  • #24977
    Profile photo of trustydan

    Hi all,

    I’ve recently become the owner of a Trusty 2 wheeled tractor. It was given to me by my grandad who has had the machine for many years.

    The tractor is in a rough but working condition and I intend to make it and all it’s accessories fully functioning but without doing any cosmetic restoration. It’s lived under an apple tree on grandad’s allotment for as long as anyone can remember, and has always been the “rusty trusty” and so it will remain.

    To this end I have just fitted a new set of piston rings to the Douglas SV54 engine because of it’s excessive oil consumption. On disassembly it was found to have 3/8″ gap on the oil control ring! The new rings were bought from Cox and Turner Engineering – highly recommended.

    Can anybody advise the correct spark plug to use in this engine? Ideally I’d like to find a vintage original rather than the modern champion mower plug it has at the moment.


    Profile photo of charlie

    Welcome to the forum. I don’t know the correct spark plug, but it may be worth looking to see what the Green Spark Plug Company have when you do find out.

    Profile photo of trusty220

    Welcome to the club forum. We do run a very active register for Trusty owners, so if you let me know the tractor serial number (off the plate where the handles join the transmission) I can let you know when the tractor left the factory and which dealer it was sold to.

    If you need any practical advice on restoring/repairing/just keeping it going then you’re in the right place. You will find that our members have a wealth of knowledge that they are only too eager to share!

    Enjoy your Trusty!

    Profile photo of busman

    According to my Douglas engine handbook, the spark plug is a 14mm Lodge CN.

    Profile photo of trustydan

    Thanks for the words of welcome.

    When I next go to where I keep the machine I’ll have a look for it’s serial number. From memory it’s four digits and starts with an 8, which I seem to remember made it December 1946.

    Thanks busman for the plug info, just got to find one now – green spark plug are out of stock.


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