Cylinder Head Temperature Gauge: Do you run one?
Thread Starter
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Road Warrior
Joined: Nov 2005
Posts: 1,484
Likes: 82
From: Mountain View, California
Cylinder Head Temperature Gauge: Do you run one?
2000 Electra Glide Ultra, 100" TC engine, 570 cams, MM fuel injection, no factory CHT gauge
Due to serious concerns for the health of my engine after the break-in of my rebuild went terribly wrong, I'm thinking about installing an aftermarket CHT gauge so I can be aware of when my engine is getting hot enough to risk risk damage so I can take steps to cool it off.
Do you run such a gauge? If so, what do you run and are you happy with it?
Also, I'd be glad to hear thoughts from informed minds on the topic who are not running one.
I see people commenting that such a gauge just gives you something to worry about, but damn, after what I just went through and the cost to correct it, I'm willing to take on that worry.
Due to serious concerns for the health of my engine after the break-in of my rebuild went terribly wrong, I'm thinking about installing an aftermarket CHT gauge so I can be aware of when my engine is getting hot enough to risk risk damage so I can take steps to cool it off.
Do you run such a gauge? If so, what do you run and are you happy with it?
Also, I'd be glad to hear thoughts from informed minds on the topic who are not running one.
I see people commenting that such a gauge just gives you something to worry about, but damn, after what I just went through and the cost to correct it, I'm willing to take on that worry.
HDF Community Team
Joined: Jun 2006
Posts: 12,779
Likes: 2,609
From: san antonio
I see no need for a CHT gauge and rely on oil temp. I have neve had an overheating issue with the all bore 107 in my 2002 FLHT but if oil temps start passing 250*, I know the motor is getting hot since normal oil temps even on a hot south Texas summer day never pass 225*. Time to pull over and cool down or find a back road to get out of the traffic.
If truly concerned about head temps, get a set of Ward's fans or Love Jugs; not sure is Ward is still selling his fan setup.
If truly concerned about head temps, get a set of Ward's fans or Love Jugs; not sure is Ward is still selling his fan setup.
Seasoned HDF Member
Joined: Jan 2011
Posts: 157,525
Likes: 57,083
From: Michigan 15 Minutes East Of Hell
Yep ... Check it and forget it ... More gauges more worries ...OCD
Thread Starter
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Road Warrior
Joined: Nov 2005
Posts: 1,484
Likes: 82
From: Mountain View, California
Thread Starter
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Road Warrior
Joined: Nov 2005
Posts: 1,484
Likes: 82
From: Mountain View, California
I see no need for a CHT gauge and rely on oil temp. I have neve had an overheating issue with the all bore 107 in my 2002 FLHT but if oil temps start passing 250*, I know the motor is getting hot since normal oil temps even on a hot south Texas summer day never pass 225*. Time to pull over and cool down or find a back road to get out of the traffic. If truly concerned about head temps, get a set of Ward's fans or Love Jugs; not sure is Ward is still selling his fan setup.
If truly concerned about head temps, get a set of Ward's fans or Love Jugs; not sure is Ward is still selling his fan setup.Just rode the bike home with new pistons and cylinders, and rear cylinder got up to 370 (with a good quality hand-held infrared sensor), while the front was 100 degrees cooler.
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Thread Starter
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Road Warrior
Joined: Nov 2005
Posts: 1,484
Likes: 82
From: Mountain View, California
lol... if only that were true. It hurt me $1,700 just 500 miles after a rebuild.
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From: Viet Vet, crossroads
I read your signature it would seem your AFR is maybe, perhaps might be a fudge lean if your CR is up ..I dont know if it is.
-----------------------------------------------------------------------..---------------------------
Now back to the regular. crap.
CHT is only a value at about 100% load.
if you are topping out just riding you HAVE TO BE too lean.
Next - i ask who is going to dictate too high?
I run 10 .5 with cast iron cylinders, a fat AFR and all is well.
Its like beating dead chickens here, they dont learn or move.'
The only thing changed in the last 100 years to make a POS HD engine run hot is the LEAN AFR!
fix it!
HDF Community Team
Joined: Jun 2006
Posts: 12,779
Likes: 2,609
From: san antonio
I would not worry about 13.8 AFR at WOT; the motor does not see WOT very often; partial throttle AFR is more important. You cannot adjust timing with the Power Commander and I would suggest upgrading to the Power Vision and a proper dyno tune and an oil cooler.
