how to read and know when to change glow plug
#1
how to read and know when to change glow plug
there was a post some time back that said how to read a glow plug, and it said how you should change it (cold, medium, hot) with weather changes, cold, hot, humid, not humid.... can someone help me out ??
Thanks
Thanks
#2
#4
Honestly, I don't think anyone really knows. For every manufacturer that says "hotter day, colder plug" there is one telling you "don't change your plug based on air temp."
There are just too many varibles that are involved in getting accurate temperature readings from an engine to actually test this.
RC glow plugs
There are just too many varibles that are involved in getting accurate temperature readings from an engine to actually test this.
RC glow plugs
Last edited by BlackFlame; 11-15-2007 at 01:43 PM.
#5
I have learned when in doubt, change it...........
#6
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quick question not really warranting its own thread: i THINK the glow plug in my firestorm is duff, as it wasn't starting (one tank through and it worked, stopped, had lunch, another tank in, and it didnt start) so would an OS A3 be a good replacement for the stock HPI R5? or is it too cold/hot?
#7
quick question not really warranting its own thread: i THINK the glow plug in my firestorm is duff, as it wasn't starting (one tank through and it worked, stopped, had lunch, another tank in, and it didnt start) so would an OS A3 be a good replacement for the stock HPI R5? or is it too cold/hot?
Oh yeah, make sure your ignitor isn't dead either.
As far as a replacement for your HPI R5, the equivilent OS plug would be the
R5 (Coldest) or even the A5 (Med Cool). Your HPI R5 was a cold plug and the A3 is a hot plug.
RC glow plugs
#8
I've heard something like this:
look at your plug after a run:
-If the coil is blackened and the case is wet, it means your motor setting is too ritch or your plug is too cold.
-If the coil is gray and the case is dry, you are too lean or plug too hot.
-If the coil is sunken or broken, you need more combustion chamber room: add a shim.
-If the coil is silvery and the case is dry or slightly humid, you are running ok.
I'm not 100% sure this is all correct, so tell me what you think...
look at your plug after a run:
-If the coil is blackened and the case is wet, it means your motor setting is too ritch or your plug is too cold.
-If the coil is gray and the case is dry, you are too lean or plug too hot.
-If the coil is sunken or broken, you need more combustion chamber room: add a shim.
-If the coil is silvery and the case is dry or slightly humid, you are running ok.
I'm not 100% sure this is all correct, so tell me what you think...
#9
Tech Fanatic
Just a quick tip......pull the glow plug out and hold it in your ignitor with a pair of pliers. If it glows bright, then it is still good.
Oh yeah, make sure your ignitor isn't dead either.
As far as a replacement for your HPI R5, the equivilent OS plug would be the
R5 (Coldest) or even the A5 (Med Cool). Your HPI R5 was a cold plug and the A3 is a hot plug.
RC glow plugs
Oh yeah, make sure your ignitor isn't dead either.
As far as a replacement for your HPI R5, the equivilent OS plug would be the
R5 (Coldest) or even the A5 (Med Cool). Your HPI R5 was a cold plug and the A3 is a hot plug.
RC glow plugs
#10
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