Heat shield tank rear reserve

bosley1980
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Heat shield tank rear reserve

Post by bosley1980 » Wed Oct 29, 2014 9:03 pm

Some user XT wrote on " unnamed forum":
"Has anyone fabricated a heat shield for the rear brake reservoir? I do a lot of riding and the header is like three inches below it and must be cooking the fluid. The pedal gets soft after a couple thousand miles."

Any one have problem? I try make some draft for the construction.

a) short (unprotected knee)
Image

b) longer version (same view of the level)
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Image

c) longer version (better view of the level)
Image
Image


in next few days I produce last version - material 1,0mm; Stainless steel - certainly reflected some heat! :nod:
Last edited by bosley1980 on Mon Mar 12, 2018 4:16 pm, edited 1 time in total.

keny72
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Re: Heat shield tank rear reserve

Post by keny72 » Thu Oct 30, 2014 9:02 am

I would not think the fluid in the reservoar getting hot would effect the brake feel, are you sure its not just the calipper piston that is a bit jamed and your rear brake is draging? or there geta air into the system somewhere? like the rear M/C?
:scratch:

bosley1980
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Re: Heat shield tank rear reserve

Post by bosley1980 » Thu Oct 30, 2014 5:34 pm

1) Here si stainless steel - gloss 0,8mm (in Stock = 1pcs) - 2018-03-12

Image

2) Here si stainless steel - 2B surface 1,0mm (in Stock = 1pcs) - 2018-03-12
Image


From exhaust pipe surely some heat goes the question whether it has an effect on fluid properties.
Some say that yes someone did not.
Definitely affects the of aging container - heat deflection is in place although at any speed motorcycle definitely enough cool.


Brake fluid: Dry boiling point / Wet boiling point
DOT 2 = 190°C / ---
DOT 3 = 205°C / 140°C
DOT 4 = 230°C / 155°C
DOT 5 = 260°C / 180°C
DOT 5.1 = 270°C / 190°C


Wet and dry boiling point
Brake fluid is hygroscopic. This means that the fluid absorbs water from atmospheric humidity. He even says that if you fill a glass with brake fluid to the brim and let it stand in the air, after some time it overflows. Brake fluid absorbs water from the surrounding air increases its volume. Therefore, each package of brake fluid written request to be properly sealed when not in use. Increased content of water in the brake fluid causes a drop in the temperature of evaporation (resp. The boiling point). Fluid DOT 4 after a certain operating time drops to DOT 3 or may degrade even further - to the power level DOT 2. Small amounts of moisture can be absorbed through the rubber seals and hoses (actually through any material except metal and glass). Therefore vehicle manufacturers recommend brake fluid replaced every two or three years.

Because brake fluid, which is filled with a hydraulic brake system having a lower boiling point than the new fluid were determined two minimum boiling point of the brake fluid - known as "dry" and "wet" boiling point. "Hook" refers to a new fluid which has not been contaminated with water and "wet" the boiling point of the liquid, which comprises approximately four percent of water, which was the average amount that DOT found in randomly selected vehicle after a period of operation. Racing brake fluid have very high value of dry boiling. Some liquids in turn may have higher wet boiling point. What is better? When used in racing machines, where brake fluid is performed after each race has a dry boiling point is crucial. However, if you do not intend to replace the fluid very often follow in its choice rather wet boiling point. The minimum temperature of the wet boiling point is fluid DOT 4 155 ° C. Product FUCHS Stopred guaranteed this value higher than 170 ° C, which puts it on the tip of the brake fluid DOT 4 categories for racers and their mechanics.
Last edited by bosley1980 on Mon Mar 12, 2018 4:20 pm, edited 2 times in total.

jibber
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Re: Heat shield tank rear reserve

Post by jibber » Thu Oct 30, 2014 6:41 pm

Whether it works or not, it looks smart, how much to the public bosley? And how about the cap locking segment on the reservoir, any plans ?

bosley1980
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Re: Heat shield tank rear reserve

Post by bosley1980 » Thu Oct 30, 2014 8:31 pm

jibber wrote:Whether it works or not, it looks smart, how much to the public bosley? And how about the cap locking segment on the reservoir, any plans ?
I do not understand the question?
Shield is additionally fitted! Everything remain! Plastic tank, plastic lid, metal lock, washer and bolt - SHIELD is EXTRA!

keny72
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Previously Owned Bikes: 1984 RG250W, 2000 Honda VFR800FI, 1991 Honda VFR750F, 1987 Honda VFR750F, 1987 Kawasaki GPZ500S, 1982 Suzuki GS500 Katana, 1982 Yamaha RD125LC, 1983 Yamaha DT125LC, 1985 KTM125GS x3, 1987 KTM125GS, 1989 KTM250GS, 1996 KTM400SC, 1994 Kawasaki KX125, 1996 Suzuki RM250, 2006 KTM250SX, 2002 CR125R
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Re: Heat shield tank rear reserve

Post by keny72 » Thu Oct 30, 2014 8:55 pm

I dont see the the benefit from this modification, but it sure looks nice :popcorn2:

jibber
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Re: Heat shield tank rear reserve

Post by jibber » Thu Oct 30, 2014 9:16 pm

I meant, will you be producing these for sale (the heat shield) and have you any plans on producing the locking/securing device which goes onto the reservoir cap?

bosley1980
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Re: Heat shield tank rear reserve

Post by bosley1980 » Thu Oct 30, 2014 9:50 pm

jibber wrote:I meant, will you be producing these for sale (the heat shield) and have you any plans on producing the locking/securing device which goes onto the reservoir cap?
NO PLANS FOR SHIELD ON TANK CAP!
do you think that is necessary?

jibber
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Re: Heat shield tank rear reserve

Post by jibber » Thu Oct 30, 2014 9:55 pm

No, sorry, not a shield just a stainless replacement for the standard item (olive pasivated zinc) ?

bosley1980
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Re: Heat shield tank rear reserve

Post by bosley1980 » Thu Oct 30, 2014 10:06 pm

jibber wrote:No, sorry, not a shield just a stainless replacement for the standard item (olive pasivated zinc) ?
OK I try make model this weekend, OK.

DONE

Image
Image

WHAT YOU SAY? :popcorn2:
Last edited by bosley1980 on Mon Mar 12, 2018 4:21 pm, edited 1 time in total.

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