Glow Plugs

[Rcmaster199 at aol.com]

Bill, is your pipe set short? The pipe I use (Hatori) has the first deflector 
plate located at 23.75" from the glow plug, straight line or around 24.5" 
along the centerline of the header. Are you running a large enough prop to keep 
rpm at around 78-8000 or so? 

I typically will run one type F plug per 150 runs in the 145, using a 20% 
nitro and 19% oil blend. My fuel blend is a 50:50 mix of 10%cool  power and 30% 
heli cool power. The large head of the Webra (large heat sink) just about 
requires the hot F type plug to run right. I've had limited success running other 
plugs in the engine.

hope that helps you 

MattK




> Help-
> I have to change plugs on a Webra 1.45 about every dozen flights....... I'm 
> sure it's not a mixture problem.  The plugs are OS-F plugs...... any ideas 
> what the cause might be??
> Thanks
> 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.f3a.us/pipermail/nsrca-discussion/attachments/20040708/42b100dc/attachment.html