My glow plug thread...
#1
Thread Starter
My glow plug thread...
This might seem odd to some, but I was sitting around tonight wondering what kind of correlation I could make between the various glow plugs. Of course I cannot determine the alloy of the wire element, but I grabbed all of the good glow plugs I have and measured the cavity the wire coil resides, the diameter of the wire, and noted the brand and heat range. There are two plugs I do not know the heat range or manufacturer of, but they work pretty decent. Pictures of these plugs are at the bottom of this post.
I don't know if this information is of any benefit to anyone besides myself, but I thought I'd share it anyhow. If anyone knows the brand/heat range of the two plugs I have pictured below, please let me know.
I will list the known manufacturer/brand, heat range, wire cavity diameter, wire diameter. These numbers are as close to exact as I can get without destroying the plugs.
Enya #3 Hot, 2.8mm, .17mm
McCoy MC4C Hot 4-cycle, 3.13mm, .17mm
McCoy MC59 Hot, 3.17mm, .17mm
Fox Idlebar Hot Gold tip, 3.30mm, .19mm
Fox Idlebar Hot Silver tip, 3.30mm, .19mm
Fox Miracle Hot 4-cycle, 2.45mm, .18mm
K&B 1L Hot, 2.60mm, .16mm
SuperTigre (Italy) Hot, 2.85mm, .18mm
OS Type F 4-cycle, 2.85mm, .18mm
No-name plug #1, 2.75mm, .17mm
No-name plug #2; Possibly a Fox car plug - Hot, 3.20mm, .14mm
The above 2 glow plugs have been used to break in a few engines, the top one most recently a SuperTigre S29 with new ring, the bottom one a SuperTigre G51 with new ring and bearings.
I can't really conclude any rhyme or reason as to the size of the wire's cavity vs. the diameter of the wire itself. The McCoy's have the largest cavity, and a mid-sized wire diameter. The Fox Idlebar plugs have the largest wire diameter, and the largest cavity yet the Idlebar plugs will only keep my Enya 4-cycle running without the driver attached. All other engines I own will not run on the Idlebar without the driver attached no matter the mixture. Performance-wise, the Fox Miracle has the lowest peak rpm of the bunch, but is reliable for rich mixture running. The McCoys work very well, with the MC59 being the plug I use in nearly all of my engines.
Does anyone know if there is or should be a correlation between the wire's cavity and the diameter of the wire? Are all elements Platinum/Rhodium alloy or are there other metals used? Am I chasing my tail asking these questions? I'm just curious about it is all.
I don't know if this information is of any benefit to anyone besides myself, but I thought I'd share it anyhow. If anyone knows the brand/heat range of the two plugs I have pictured below, please let me know.
I will list the known manufacturer/brand, heat range, wire cavity diameter, wire diameter. These numbers are as close to exact as I can get without destroying the plugs.
Enya #3 Hot, 2.8mm, .17mm
McCoy MC4C Hot 4-cycle, 3.13mm, .17mm
McCoy MC59 Hot, 3.17mm, .17mm
Fox Idlebar Hot Gold tip, 3.30mm, .19mm
Fox Idlebar Hot Silver tip, 3.30mm, .19mm
Fox Miracle Hot 4-cycle, 2.45mm, .18mm
K&B 1L Hot, 2.60mm, .16mm
SuperTigre (Italy) Hot, 2.85mm, .18mm
OS Type F 4-cycle, 2.85mm, .18mm
No-name plug #1, 2.75mm, .17mm
No-name plug #2; Possibly a Fox car plug - Hot, 3.20mm, .14mm
The above 2 glow plugs have been used to break in a few engines, the top one most recently a SuperTigre S29 with new ring, the bottom one a SuperTigre G51 with new ring and bearings.
I can't really conclude any rhyme or reason as to the size of the wire's cavity vs. the diameter of the wire itself. The McCoy's have the largest cavity, and a mid-sized wire diameter. The Fox Idlebar plugs have the largest wire diameter, and the largest cavity yet the Idlebar plugs will only keep my Enya 4-cycle running without the driver attached. All other engines I own will not run on the Idlebar without the driver attached no matter the mixture. Performance-wise, the Fox Miracle has the lowest peak rpm of the bunch, but is reliable for rich mixture running. The McCoys work very well, with the MC59 being the plug I use in nearly all of my engines.
Does anyone know if there is or should be a correlation between the wire's cavity and the diameter of the wire? Are all elements Platinum/Rhodium alloy or are there other metals used? Am I chasing my tail asking these questions? I'm just curious about it is all.
#2
Senior Member
RE: My glow plug thread...
The diameter of the wire, the alloy and the size of the hole determine the heat range but Aldon Kelly of Merlin Glow Plugs knows it all. I would give him a call.
#4
My Feedback: (8)
RE: My glow plug thread...
The stems on those two plugs look sorta familiar...
Ya think the first one might be a Picco or Novarossi std.? (just a WAG there, but the plug in your pic has a long reach? )
The lower one kinda looks like the plug O.S. makes for the Traxxas 3.3 (what is it...LC3 or something like that...but there are no markings?? ) The Fox (Blaster ) car plugs that I've used have a completely smooth stem...w/ a conical tip.
Ya think the first one might be a Picco or Novarossi std.? (just a WAG there, but the plug in your pic has a long reach? )
The lower one kinda looks like the plug O.S. makes for the Traxxas 3.3 (what is it...LC3 or something like that...but there are no markings?? ) The Fox (Blaster ) car plugs that I've used have a completely smooth stem...w/ a conical tip.
#5
Thread Starter
RE: My glow plug thread...
ORIGINAL: proptop
The stems on those two plugs look sorta familiar...
Ya think the first one might be a Picco or Novarossi std.? (just a WAG there, but the plug in your pic has a long reach? )
The lower one kinda looks like the plug O.S. makes for the Traxxas 3.3 (what is it...LC3 or something like that...but there are no markings?? ) The Fox (Blaster ) car plugs that I've used have a completely smooth stem...w/ a conical tip.
The stems on those two plugs look sorta familiar...
Ya think the first one might be a Picco or Novarossi std.? (just a WAG there, but the plug in your pic has a long reach? )
The lower one kinda looks like the plug O.S. makes for the Traxxas 3.3 (what is it...LC3 or something like that...but there are no markings?? ) The Fox (Blaster ) car plugs that I've used have a completely smooth stem...w/ a conical tip.
This is an OS rebranded plug, DuraTrax LR3. Hot, long reach. The opening on this one is pretty small, pretty doubtful I can measure the wire of this one.
By the way, its good to see you around again, Tom.. Its been awhile!