Motorcycles » rec.motorcycles.tech » 1981 honda silverwing front wheel seizing
1981 honda silverwing front wheel seizing [message #777738] Mon, 17 July 2006 00:01
engkitten  
I have a 1981 Honda silverwing interstate and as I am driving and using
my brakes they are gradually sticking harder and harder.. I have
replaced the brake pads, pistons and seals and taken the master
cyclinder off and cleaned... But I still am having problems with this
happening. Any suggestions as to what might be wrong. Thank you
Re: 1981 honda silverwing front wheel seizing [message #785070 ] Mon, 17 July 2006 02:24
Mark Olson  
engkitten wrote:
> I have a 1981 Honda silverwing interstate and as I am driving and using
> my brakes they are gradually sticking harder and harder.. I have
> replaced the brake pads, pistons and seals and taken the master
> cyclinder off and cleaned... But I still am having problems with this
> happening. Any suggestions as to what might be wrong. Thank you

Do the calipers release their grip if you crack a bleeder screw?

If so, did you run a wire through the fluid return hole in the master
cylinder? It's covered by a little stamped steel piece that keeps
fluid from spraying up when the lever is released. It's a very small
hole, you need to pull off that piece, and poke a small wire through
the hole to get the congealed brake fluid out of there that is keeping
fluid pressure in the front brake lines.

--
'01 SV650S '99 EX250-F13 '98 ZG1000-A13 '81 CM400T
OMF #7
Re: 1981 honda silverwing front wheel seizing [message #785071 ] Mon, 17 July 2006 02:59
Ken Long  
"engkitten" <engkitten [at] yahoo.ca> wrote:

>I have a 1981 Honda silverwing interstate and as I am driving and using
>my brakes they are gradually sticking harder and harder.. I have
>replaced the brake pads, pistons and seals and taken the master
>cyclinder off and cleaned... But I still am having problems with this
>happening. Any suggestions as to what might be wrong. Thank you

This is a common problem on those bikes and is caused by the little hole
in the master cylinder being plugged. I haven't had to fix one yet but I
understand the hole is really tiny.

Ken in Albuquerque
'82 Honda GL650 Silverwing
'02 Suzuki Savage
Re: 1981 honda silverwing front wheel seizing [message #785132 ] Wed, 19 July 2006 22:49
Mark  
>
> If so, did you run a wire through the fluid return hole in the master
> cylinder? It's covered by a little stamped steel piece that keeps
> fluid from spraying up when the lever is released. It's a very small
> hole, you need to pull off that piece, and poke a small wire through
> the hole to get the congealed brake fluid out of there that is keeping
> fluid pressure in the front brake lines.
>

why did they design it that way?

what problem would be caused if the stamped piece is removed and the
fluid "sprays" inside the closed reservoiur?

Mark
Re: 1981 honda silverwing front wheel seizing [message #785134 ] Thu, 20 July 2006 00:07
OH-  
"Mark" <makolber [at] yahoo.com> wrote in
news:1153342163.725051.115270 [at] s13g2000cwa.googlegroups.com...
>
> why did they design it that way?
>
> what problem would be caused if the stamped piece is removed and the
> fluid "sprays" inside the closed reservoiur?

You'd find out the next time you bleed the brakes ;-)

Apart from that, I can (just) imagine that there can be a deeper
technical reason that would have something to do with minimising
air / fluid mixing that would be much more effective with a
small fountain in the reservoir.

--
Ole Holmblad - Göteborgs Prima MCK / MK Pionjär
TDM850 / TT600R FL#44 OTC#489 UKRMSBC#08
SGFPTH#00 Remove hat to answer by mail
Re: 1981 honda silverwing front wheel seizing [message #785138 ] Thu, 20 July 2006 05:24
Mark Olson  
OH- wrote:
> "Mark" <makolber [at] yahoo.com> wrote in
> news:1153342163.725051.115270 [at] s13g2000cwa.googlegroups.com...
>
>>why did they design it that way?
>>
>>what problem would be caused if the stamped piece is removed and the
>>fluid "sprays" inside the closed reservoiur?
>
>
> You'd find out the next time you bleed the brakes ;-)
>
> Apart from that, I can (just) imagine that there can be a deeper
> technical reason that would have something to do with minimising
> air / fluid mixing that would be much more effective with a
> small fountain in the reservoir.

Well batted, I hadn't thought of that but it makes sense.

Whenever one is tempted to remove a motorcycle part (AKA "Muntzing" [1])
because it's obviously not needed... stop, count to 20,,, count to 20
again... ...

[1] http://www.national.com/rap/Story/0,1562,17,00.html

--
'01 SV650S '99 EX250-F13 '98 ZG1000-A13 '81 CM400T
OMF #7
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