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differnce in glow plug?

Old 08-28-2004, 02:03 PM
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still burnin
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Default differnce in glow plug?

I have a tower hobbies .46 (I know some will say its junk and others will say its fine but thats what I have right now). I have burned about 2 gallons through it and it ran good at the end of the first gallon but now is getting hot and dead sticking. I have adjusted the needles 100 time to make run better. I use the right prop. I am using 15% nitro. The engine runs good if you leave the glow starter on the glow plug. I am using a os#8 plug. do I need a different plug or does it sound like something else. P.S. sealed up card with silicon and checked fuel lines. can anyone help? Thanks Matt
Old 08-28-2004, 03:19 PM
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JimRoss
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Default RE: differnce in glow plug?

Matt,
This can be difficult to diagnose online but here goes.
1. check all the fuel lines to make sure none are split.
2. make sure engine is getting enough air to keep it cool.
3. set needle valve to about a 300 rpm drop from full rpm to the rich side.
4. make sure you are running enough oil in your fuel, it needs about 18% oil.
5. check ALL the bolts on the engine for tightness.
6. try a new glo plug.
Old 08-29-2004, 07:22 AM
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Stripes
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Default RE: differnce in glow plug?

This engine is famous for air leaks at the back cover and carburetor mount. The local guys use RTV to seal it up.
Old 08-29-2004, 01:13 PM
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Rudeboy
 
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Default RE: differnce in glow plug?

ORIGINAL: still burnin

The engine runs good if you leave the glow starter on the glow plug. I am using a os#8 plug. do I need a different plug or does it sound like something else.
You need a new plug. OS #8 is fine for your setup.
A glow plug can be bad even if it still looks good. The fact that it runs ok with the glow power on points in that direction.

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