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techtalk:ref:wheels03a [2019/04/18 02:04] hippysmack [Master cylinder issues] |
techtalk:ref:wheels03a [2019/04/22 02:33] hippysmack removed |
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| ==== Notes regarding brake fluid ==== | ==== Notes regarding brake fluid ==== | ||
| + | Also reference the [[techtalk:ref:wheels03#brake_fluid|Brake Fluid]] article in the REF section of the Sportsterpedia for type per year model, specs, mixing fluids etc. \\ | ||
| - | * Paint peel-ability of different fluids: \\ DOT 3,4 & 5.1 can peel the paint on frame and other painted parts. \\ DOT 5 is silicon based and will not peel the paint. \\ You can spill DOT 5 brake fluid virtually anywhere and harm nothing. ((IronMick of the XLFORUM http://xlforum.net/forums/showthread.php?t=867917&page=2)) | + | * **Make sure you do regular brake fluid changes according to the FSM change intervals**. \\ If the bike has sat for a long period of time, it's best to go ahead and plan on changing both front and rear. |
| - | * **Caution**: \\ Do not mix DOT 5 with (DOT 3,4 or 5.1) \\ Also reference the [[techtalk:ref:wheels03#brake_fluid|Brake Fluid]] article in the REF section of the Sportsterpedia for type per year model, specs, mixing fluids etc. \\ | + | * **Paint peel-ability of different fluids**: |
| + | * DOT 3,4 & 5.1 can peel the paint on frame and other painted parts. \\ DOT 5 is silicon based and will not peel the paint. \\ You can spill DOT 5 brake fluid virtually anywhere and harm nothing. ((IronMick of the XLFORUM http://xlforum.net/forums/showthread.php?t=867917&page=2)) | ||
| + | * **Caution**: | ||
| + | * Do not mix DOT 5 with (DOT 3,4 or 5.1) | ||
| + | | Note the gooey mess from mixing Dot 5 and Dot 3 fluids. ((photos by FearlessFrisbee of the XLFORUM http://xlforum.net/forums/showthread.php?t=1508535)) || | ||
| + | |{{:techtalk:ref:wheels:dot_5_-_dot_3_mix_goop_1_by_fearlessfrisbee.jpg?direct&300|}}|{{:techtalk:ref:wheels:dot_5_-_dot_3_mix_goop_2_by_fearlessfrisbee.jpg?direct&300|}}| | ||
| + | |||
| + | * **DOT 3,4,and 5.1 can dry up over time**: | ||
| + | * Any type brake fluid can break down over time, solids fall out of suspension and clog up orifices. | ||
| + | * However, DOT 3, 4 and 5.1 will mix with water and they will dry up as water does over time. | ||
| + | * Look for corrosion in the aluminum in addition to the goo. \\ It's caused by the fluid absorbing water when the bikes sit for a long time and or the fluid is not changed for a long time. \\ Too long and you may find pits in the body of the MC and / or bore pitted beyond being cleanable with a hone. ((FearlessFrisbee of the XLFORUM http://xlforum.net/forums/showthread.php?t=1509571)) | ||
| + | |||
| + | | Affects of dried up DOT 3 brake fluid. ((photos by Daddio of the XLFORUM http://xlforum.net/forums/showthread.php?t=1509571)) || | ||
| + | |{{:techtalk:ref:wheels:dot_3_dried_up_1_by_daddio.jpg?direct&300|}}|{{:techtalk:ref:wheels:dot_3_dried_up_2_by_daddio.jpg?direct&300|}}| | ||
| ==== Notes regarding brake lines ==== | ==== Notes regarding brake lines ==== | ||
| Line 457: | Line 471: | ||
| * Once this process is done, install the M/C, hook up your actual brake lines and continue bleeding at the caliper bleed screw. | * Once this process is done, install the M/C, hook up your actual brake lines and continue bleeding at the caliper bleed screw. | ||
| ===== Master cylinder issues ===== | ===== Master cylinder issues ===== | ||
| + | * **Note**: | ||
| + | * Bleeding air out of a Sporty master cylinder can be a frustrating task. | ||
| + | * Before suspecting the master cylinder, make sure you've exhausted your bleeding options before rebuilding the M/C for no reason. | ||
| + | * While fresh seals is never a bad idea; | ||
| + | *There has been a number of unnecessary rebuilds. \\ (when the rebuild simply allowed time or convenience for the air to be expelled). | ||
| + | |||
| * **Clean the hole(s) in the bottom of the master cylinder**: | * **Clean the hole(s) in the bottom of the master cylinder**: | ||
| * The transfer hole(s) can get clogged from debris or solids that drop out of suspension in the fluid itself. \\ Clear them with a pin, a bristle from a wire brush, welding tip cleaner or other or the master cylinder will not transfer fluid properly. | * The transfer hole(s) can get clogged from debris or solids that drop out of suspension in the fluid itself. \\ Clear them with a pin, a bristle from a wire brush, welding tip cleaner or other or the master cylinder will not transfer fluid properly. | ||
