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Old 10-11-2008, 02:05 PM   #16
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I'm sure it's OP....


this looks like it's cousin..

http://www.amazon.com/Raytek-ST20XB-.../dp/B000MIRFJY



I guess that is why Sigma had a cone made for the tip......


I remember using a metal probe with a mechanical temp gauge, and touching the glow plug area....and then testing it with my raytek..

It was within 2 degrees......





Is the exergen center point?...
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Old 10-12-2008, 04:35 AM   #17
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Originally Posted by lil-bump View Post
The only problem I have with the O'donnel temp gun is the lights really kills the battery. I broke in my novarossi on a prop I was constantly checking the temp before i was done the battery was dead. So I went inside and disabled the light ckt. Now the battery last an entire season.

One thing to remember about temp guns is to know if it is a (OP-Offset point or CP -centerpoint) Most Raytek's are OP meaning where ever the lazar points you are actually measuring 1 inch to right of the lazar dot no matter what the distance to spot ratio is. So if you place an OP type temp gun directly over the heat sink you are actually reading down the side of the heat sink not the glow plug.

thank you guys for your replys!
lil-bump can you post a temp gun that is cp?odonnell?
and something else,the mt raytek series is previus models?
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Old 10-12-2008, 07:13 AM   #18
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You also have to consider this.....even if you get the 1 inch surrounding area of the glow plug and head, it's enough to tell if you are overheating....


Does it really make a difference if the engine is 230 or 240?...nope....if its in the range, you're fine......

The other thing to consider is that your not supposed to be tuning it by temp either........


which has been discussed more times than I can remember.....


and on top of that, the spit test still works fine.......
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Old 10-12-2008, 07:17 AM   #19
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i tune with my feeling.i dont use the temp for it.i only see if i am in the safe range.
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Old 10-12-2008, 10:09 AM   #20
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Yeah but with the raytek all you have to do is sway it from side to side while holding the trigger and you will see all hot spots of the motor to get a good temp.
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Old 10-12-2008, 10:39 AM   #21
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Yeah but with the raytek all you have to do is sway it from side to side while holding the trigger and you will see all hot spots of the motor to get a good temp.
thanks sm1nts2escape.what model do you have?

[how how are your dogbones?i think that the murnan cordoba is too much!]
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Old 10-12-2008, 10:50 AM   #22
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Mine is the raytek mint temp mt.The murnan cordoba is great!
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Old 10-12-2008, 11:57 AM   #23
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exergen
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Old 10-12-2008, 02:18 PM   #24
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Old 10-12-2008, 07:32 PM   #25
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I have the older black case flat rectangular exergen. Hasn't let me down in almost 10 years now.
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Old 10-13-2008, 02:41 PM   #26
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Originally Posted by GREGORY! View Post
thank you guys for your replys!
lil-bump can you post a temp gun that is cp?odonnell?
and something else,the mt raytek series is previus models?
I'm not sure what type of of sensor the O'donnell TGX1 is. They do not list that info. But I believe it is a CP just based on the small Distance to spot ratio of 1 to 1. Most of the guns list on Mcmaster Carr's sight will give the CP or OP info
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Last edited by lil-bump; 10-13-2008 at 02:56 PM.
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Old 10-13-2008, 03:31 PM   #27
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I have the older black case flat rectangular exergen. Hasn't let me down in almost 10 years now.
thats by far the best one out there but there around 700.00 dollars from exergin the pistol grip is almost as good but not as durable for around 300.00 just my opnion tommys dad here
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Old 10-13-2008, 03:36 PM   #28
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Yeah don't ever just tune by the the temp use it only as a guidline.Smoke and sound is how you tune it then you temp it and you make the decision if you want to run hotter or colder.Then once you get a avg temp you can see how your motor responds to differen't clutch setups and so on.
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