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upjeeper
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« on: June 27, 2010, 08:33:18 AM » |
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I put on about 50 miles yesterday and noticed my valve covers were to hot to touch.
I'm not running synthetic oil, but will go to that next oil change (and i know it will likely only save a few *F). I've also refilled my coolant and burped it per the service manual.
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R J
Member
Posts: 13380
DS-0009 ...... # 173
Des Moines, IA
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« Reply #1 on: June 27, 2010, 08:53:59 AM » |
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You are running normal......
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44 Harley ServiCar   |
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Patrick
Member
Posts: 15433
VRCC 4474
Largo Florida
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« Reply #2 on: June 27, 2010, 08:55:41 AM » |
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What did you touch them with?? If your leg happens to rest against one, you won't keep it there very long.. You could probably cook a meal on them if you needed to..
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upjeeper
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« Reply #3 on: June 27, 2010, 08:56:48 AM » |
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What did you touch them with?? If your leg happens to rest against one, you won't keep it there very long.. You could probably cook a meal on them if you needed to..
I can feel the heat coming from the valve covers when riding, so when i stopped i touched it with my hand |
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Ricky-D
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« Reply #4 on: June 27, 2010, 09:16:23 AM » |
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Normally if I happen to touch the valve cover with my leg, I can pull it away with very little if any burning sensation although it gets pretty hot.
A couple of weeks ago in Austin while riding slowly for an extended period of time and idling also included, my leg touched the valve cover and I got a burn that blistered.
I never felt that much heat from the valve cover. That's the first time the motor got that hot, I am sure.
The fan cycled off and on as normal.
Back home now things are back to normal but my leg is still peeling where I was burned.
Was a learning experience to say the least!
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2000_Valkyrie_Interstate
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ricoman
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« Reply #5 on: June 27, 2010, 09:48:35 AM » |
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you know, Patrick may be on to something.
Years ago I was on a pipe crew that used Cat and Deere excavators. Many of the guys would put foil wrapped food on the exhaust manifold to heat/cook their lunch
Somebody start a new post "Riding Recipes from Valhalla".
There could be 50 mi., 100 mi., and all day sections depending on cooking time. We'd need some desert recipes too.
I bet Dag would throw one in for some fish!
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take personal responsibility and keep your word
98 Tourer, black and chrome, added 8/11/10
98 Std, yellow/cream, totaled 8/3/10
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Thunderbolt
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« Reply #6 on: June 27, 2010, 11:58:48 AM » |
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when my pants leg came up.
I worked for a short time at a natural gas pumping station where they had huge 16 cylinder inline engines. Several of the guys would put their lunches in a Tupperware type sectional container on the engine about first break and at noon it was ready to eat.
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alph
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« Reply #7 on: June 27, 2010, 06:10:45 PM » |
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hot enough to know not to touch em again!!  that's why you don't want to do the nickel trick after a long ride!! |
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Promote world peace, ban all religion. Ride Safe, Ride Often!!   |
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RP#62
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« Reply #8 on: June 27, 2010, 06:24:31 PM » |
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Mine are around 120° now and I haven't run my bike in a week.
-RP
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redflash
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« Reply #9 on: June 27, 2010, 07:11:44 PM » |
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I'd guess they get at least as hot as your thermostat temperature, somewhere around 180 deg, but don't quote me, could be more. I'd say as hot as the engine oil that splashes around inside them!
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borat
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« Reply #10 on: June 27, 2010, 07:40:43 PM » |
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I just got in from a five mile test ride. The bike was already warmed up. I took a reading with an infrared thermometer and the head was reading 176 degrees F. I assume that it will get a bit warmer than that.
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Noise & chrome are no substitue for power, performance and reliability.
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Slammer
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« Reply #11 on: June 28, 2010, 07:46:29 PM » |
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around 215 degrees when the fan comes on. My riding boots come to the bottom of my calf and I'm real glad they do.
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NITRO
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« Reply #12 on: June 29, 2010, 05:55:06 AM » |
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you know, Patrick may be on to something.
Years ago I was on a pipe crew that used Cat and Deere excavators. Many of the guys would put foil wrapped food on the exhaust manifold to heat/cook their lunch
Somebody start a new post "Riding Recipes from Valhalla".
There could be 50 mi., 100 mi., and all day sections depending on cooking time. We'd need some desert recipes too.
I bet Dag would throw one in for some fish!
Great idea!!! |
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When in doubt, ride.
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SgtBunny
Member
Posts: 427
"Don't be a Lemming!" - MCC
Kingwood, WV
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« Reply #13 on: June 29, 2010, 07:13:20 PM » |
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has anyone played with using a different thermostat to see if it affects how the bike runs. Maybe a cooler one.
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VRCC #29625 '98 Tourer  |
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Robert
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« Reply #14 on: July 01, 2010, 07:25:36 AM » |
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If you want to put in a cooler thermostat for the valve covers forget it they are in oil and will want to get to the same temp as the oil. I have a 180 thermostat in mine with water wetter and really like it. It is cooler and does make me more comfortable. Some have said the factory is 180 but I find the engine with the stock thermostat runs more into the 190 to 200 range.
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“Some people see things that are and ask, Why? Some people dream of things that never were and ask, Why not? Some people have to go to work and don’t have time for all that.”
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jammer
Member
Posts: 135
#5407 3 valks 97-98-99
Illinois
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« Reply #15 on: July 01, 2010, 08:31:28 AM » |
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Good glove warmers @ stop lights in the fall & winter!  |
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G
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Pete
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« Reply #16 on: July 01, 2010, 02:35:32 PM » |
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Used an IR Temp gun today to get the temps.
Valve covers = 120 to 125 degrees F.
Head intake side = 180 to 185 degrees F.
Radiator = 198 to 202 degrees F.
All taken about three minutes after shutoff on an 88 degree F day after a 25 mile ride.
The fact that you can touch the valve covers without getting burned is a good clue that there temp is less than 135 degrees (think hot water heater water stream).
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« Last Edit: July 02, 2010, 07:41:14 AM by Pete »
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Rocketman
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« Reply #17 on: July 01, 2010, 02:54:10 PM » |
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has anyone played with using a different thermostat to see if it affects how the bike runs. Maybe a cooler one.
The thermostat temp doesn't change how much heat your radiator can pull out of the engine. It just changes WHEN the radiator starts pulling heat out of the engine. The thermostat opens the water passages at a certain temp, and that temp is what you're changing. Once you've reached the max power load for the radiator, the temperatures will still rise until the steady state is reached. So, in layman's terms, it will affect engine temps when it's cold outside, and the engine isn't pushing hard. But, when the outside temps rise, and the engine is pushing hard, it's still going to get up to the 200 or 210 range. |
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Robert
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« Reply #18 on: July 01, 2010, 05:55:22 PM » |
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Rocketman our radiators do have enough capacity to keep the temps cool under load or a hot day with a cooler thermostat.Of course at idle the fan is the decider of the temp at idle and stationary.
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« Last Edit: July 01, 2010, 05:59:18 PM by Robert »
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“Some people see things that are and ask, Why? Some people dream of things that never were and ask, Why not? Some people have to go to work and don’t have time for all that.”
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Rocketman
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« Reply #19 on: July 01, 2010, 08:02:56 PM » |
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The stock thermostat is what, 180? My oil runs at 190-200 in around town, and 210 or so at high freeway speed. The lower temp thermostat doesn't make any difference once the temp hits the opening temp of the higher thermostat. At that point, water is flowing no matter whether you've got the low temp or the high temp thermostat.
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