Connecting spark plug/boot/HT lead

[stjon]

I have bought new plug leads and plugs for my Seahorse, so wanted to be sure the connections were all sound. I bought two boots with screw connectors to the HT lead, but found that I couldn't get a reliable connection onto the plug - there was just a flimsy (copper?) loop that got mangled when I pushed in the plug with my ham fists. Then I bought boots with clips inside, but I have no idea how to get a reliable connection to HT lead or plug? I've read instructions that seem to suggest you connect plug and lead to the clip then slide the boot over them, but I'm baffled? I never had this problem with my car plugs!

Can anyone suggest the best type to use and how to fit them?

 

[RogersJetboat454]

Re: Connecting spark plug/boot/HT lead

The original boots and clips should look like this;


The clip pierces the side of the HT lead, then you slide the boot over the whole thing to hold it firm. Dielectric grease helps you to slide the boot over the clip and wire.

Did you also replace the HT leads? If you did, just make sure they are copper core, not graphite core like what is used on modern auto leads.

 

[Joe Reeves]

Re: Connecting spark plug/boot/HT lead

The rubber boot, spark plug end.... With the wire cut to the length required, trim back 1/4" insulation again but do not solder tint the wires. Simply fan out the wires and fold them back against the insulation, cutting any excess off. Holding the spring wire terminal, estimate where the prong should be inserted so that the spring will be flush against the exposed wire. Hold the spring terminal away from the wires end (sideways) and insert the prong into the insulation and into the center wire, then swing the spring terminal in front of the exposed wire portion (makes a tight fit for continuity purposes).

Spraying the inner portion of the boot where the wire will insert with a small amount of WD40 makes the installation of the wire a easy project. That's it.... you're done.

 

[stjon]

Re: Connecting spark plug/boot/HT lead

A big thankyou guys. I can't believe how simple it is with guidance. I didn't even realise that the coiled part fits snugly over the spark plug top! Duh!