Hello
I am installing a 4 stroke "f" glug into a new motor that I need to install a plug extension wiring with. This plug(f) has a longer center terminal post that will not allow the wiring extension to clip over the plug and lock into place. Are you able to cut part of the center post off without doing any damage to performance to the plug?
Thanks
Jeff

jjoos, who's extension are you using, is it the sullivan or Thndertiger. Also I would not attempt to cut part of the tip off the glow plug, as I dont think that is your problem. I think your problem is where the clip is hitting the base of the engine where the glow plug sits. I bet if you try loosening the glow plug slightly it will go right on, but that is just a test (dont run it loose). That would tell me, if you need to remove any material, it should be removed from the bottom of the glow plug clip base, a dremel tool with a drum sander would probably do the trick. Daz...

Daz
It is the sullivan extension that I have. The way the inside spring loaded socket is the postive terminal inside bottems out in the socket not allowing the ground side of the socket to go down far enough over the plug to clip onto it. I have tried it with the plug out and the center stud is just too long to allow the socket to clip over the plug. ????
Thanks
Jeff

I have had the same problem with the Sullivan. The F plug is too long and the A3 & 8 plugs are too short making the connection intermittent.

Jjoos, I have the same Sullivan remote ignitor on my Saito 100, using an OS type F, and it works fine. I'm wondering now if you got a bad one, do you have any other extensions you could try it with. If you cant even get the clip on it with the glow plug out, then there is definetely something wrong. Maybe go to your LHS and take your plug, and try a new extension to see if you got a bad one, or maybe even your type F plug may have been manufactured wrong, did you try another type F plug?. Daz...

Daz
You are correct about it hitting the head. The motor I have is an enya 91 4-stroke and the glow plug on that engine seems to have a tapered bore which it mounts into the head. This motor has the plug facing the prop so it really isnt real safe without the remote. I havent worked with it yet but I am thinking of maybe grinding some of the remote off. I could shim out the plug with another washer but I dont know if that would hurt any performance.
thanks
Jeff

Jeff, what you could do is cutoff the part that clips over the glow plug, and manufacture a clip that just snaps onto the tip of the plug. Take a look at this link to get an idea of what I'm talking about, I'm sure radio shack would have a clip like this. Daz
http://www2.towerhobbies.com/cgi-bin...1&I=LXD694&P=7

Jeff,

I've run into the same problem myself. I figured that grinding or cutting off the glow plug post would be the obvious fix, but then I wondered if the intense vibrations from the grinding/cutting would possibly destroy the coil or somehow damage the insulation between the center post and the glow plug body.

To solve (so I thought) the problem, I bought a Du-Bro remote glow plug socket. It sucked! The spring wire clip they use will fit any plug, but the thing would not stay on properly for very long. The dummy plug at the other end was poorly designed as well, and wouldn't stay tight enough to allow me to attach my twist-on glow driver.

I finally bought what I think is the best glow plug remote connector yet. It's a "Kavan type" connector from Cermark. It looks great too; like a scale spark plug boot.

Something else that works: cut off the Sullivan clip and solder the lead to a small wheel collar. Then clamp the little wheel collar onto the glow plug post.

Good flying,
Bob Scott