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#1
03-11-2006, 06:44 PM
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How hot does the valve cover get?
I am thinking about re-routing one of my veg oil lines along the valve cover to keep it warm. How warm will it get? I don’t want to melt the hose.
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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver 1982 300SD - 232K miles - Wife's Daily Driver 1986 560SL - Wife's red speed machine 
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#3
03-11-2006, 08:25 PM
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True, but I was going to use rubber fuel injection line. I guess I could use flexable copper...
__________________
1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver 1982 300SD - 232K miles - Wife's Daily Driver 1986 560SL - Wife's red speed machine
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#4
03-11-2006, 08:58 PM
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Valve cover is cooler than the oil temp within, which runs generally 30-40º warmer than the water temp. No, it will not melt the FI type hose. The copper would yield the best heat transfer.
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#5
03-11-2006, 11:31 PM
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i doubt
that the valve cover will ever get too hot to hold your hand on it.
tom w
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.  [SIGPIC]..I also have a 427 Cobra replica with an aluminum chassis.
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#6
03-11-2006, 11:46 PM
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Quote:
o yes it will get too hot to touch. but to warm a line? i doubt it.
__________________
have no worries.....President Obama swears "If you like your gun, you can keep it 
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#7
03-12-2006, 02:04 AM
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Sounds perfect. I'm not really trying to heat the oil in the line much...just melt it on a cold day. Thanks.
__________________
1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver 1982 300SD - 232K miles - Wife's Daily Driver 1986 560SL - Wife's red speed machine
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#8
03-12-2006, 08:13 AM
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Maybe someone has a laser thermometer and can shoot their value cover when at operating temp. It's an interesting idea for the veg oil.
__________________
1983 300SD 307k miles 1993 Ford Escort Wagon 215k miles 1995 Isuzu P'up 214k miles
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#9
03-12-2006, 06:08 PM
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I did some tests at one time with my IR thermometer and it was under 200 degrees in the summer.
__________________
1981 300D 147k 1998 VW Jetta Tdi 320k 2001 Dodge Ram 2500 141k 1979 300D 234k (sold) 1984 300D "Astor" 262k(sold) Mercedes How-To and Repair Pictorials I love the smell of diesel smoke in my hair 
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#10
03-12-2006, 10:52 PM
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I was told by the hardware guy here that you do not want to run WVO through copper. Copper is a soft metal and will disintergrate in short time. WVO is a strong solvent especially whjen it's heated.
__________________
'87 924S '81 280SEL Sold -> 81 300SD - 93 300E w/ 3.2 85 300D- 79 300SD 82 300CD 83 300CD - CA 87 190E 5 spd 87 Porsche 924S "..I'll take a simple "C" to "G" and feel brand new about it..." 
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#11
03-13-2006, 05:32 AM
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I have restored many antique marine engines, where copper is the norm, and has lasted, in perfect condition, for nearly 100 years. WVO is not a solvent, but does clean the fuel sludge pretty well. Copper does work harden, and crack. For that reason, I would use stainless.
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#12
03-13-2006, 08:26 AM
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Quote:
The turbo compressor housing was also 155 degrees where the exhaust side was up at 270 or so degrees. Danny
__________________
1984 300SD Turbo Diesel 150,000 miles OBK member #23 (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination
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