Master Cylinder Sight Glass Replacement. How to glue it on? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 15 (permalink) Old 03-02-2013, 05:36 PM Thread Starter
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Master Cylinder Sight Glass Replacement. How to glue it on?

Hi. A whole bunch of time ago I broke my master cylinder's sight glass and bought another one on eBay. However, I've never been able to install it properly. Which is quite dangerous for sure... I used super glue and after a while the brake fluid starts coming out through the sides of the sight glass, as if it were sweating, sort of.

I also tried a mixture of super glue and baking soda, which has proved very useful in other repairs where super glue by itself won't hold. This one lasts a little longer but after a while I start seeing brake fluid coming out as well. Not in squirts or even drops, but slowly over time... however, it definitely means the glue isn't holding.

So I'm wondering what I can use to glue it on for good and not have a leak there anymore.

This is what I bought:

http://www.ebay.com/itm/86-kawasaki-...bd7438&vxp=mtr

1985 VN700 unknown mileage (over 33K)

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post #2 of 15 (permalink) Old 03-02-2013, 06:00 PM
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umm so someone did buy the one i posted up i would use some automotive silly cone that is resistant to brake fluid

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post #3 of 15 (permalink) Old 03-02-2013, 06:26 PM
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post #4 of 15 (permalink) Old 03-02-2013, 07:21 PM
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Nothing wrong with that buy, has both in one place shipped. A perfect cut glass replacement that will never fade and stainless hardware, both will outlast the bike. Use RTV, You can get it all automotive and some hardware stores. Just ask for RTV and they will find it. You can get clear or black. Permatix is the usual brand choice.

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post #5 of 15 (permalink) Old 03-02-2013, 10:08 PM Thread Starter
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RTV as in silicone? I think I have a tube of both red and black RTV silicone.

I thought about using it but thought it wouldn't work for some reason. Or are you talking about something else?

1985 VN700 unknown mileage (over 33K)

AGM Battery
Iridium spark plugs
NGK wires and caps
Relocated R/R
Marbled
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post #6 of 15 (permalink) Old 03-02-2013, 10:13 PM Thread Starter
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Quote:
Originally Posted by new rider 9984 View Post
umm so someone did buy the one i posted up i would use some automotive silly cone that is resistant to brake fluid
Yea, I remember saying in some thread that I had bought it...

I bought it maybe a couple of months after I got the bike. I got the bike in October 2010. So I got this glass on early 2011 at most. It still looks pretty good, except for me not getting it to seal properly and stay in its place.

1985 VN700 unknown mileage (over 33K)

AGM Battery
Iridium spark plugs
NGK wires and caps
Relocated R/R
Marbled
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post #7 of 15 (permalink) Old 03-03-2013, 12:33 AM
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Quote:
Originally Posted by Ceal View Post
RTV as in silicone? I think I have a tube of both red and black RTV silicone.

I thought about using it but thought it wouldn't work for some reason. Or are you talking about something else?
Yes. Make sure the area to be sealed is clean and give it 12+ hours to cure before use.
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post #8 of 15 (permalink) Old 03-03-2013, 01:33 AM Thread Starter
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Cool, I'll do it tomorrow morning and give it a proper 12 hours before I put brake fluid back in it. Thanks!

1985 VN700 unknown mileage (over 33K)

AGM Battery
Iridium spark plugs
NGK wires and caps
Relocated R/R
Marbled
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post #9 of 15 (permalink) Old 03-19-2013, 07:18 PM
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I used to do nose cones & water pickups on outboard lower units, and I found the quicker set epoxies would not hold up in a constant water & oil environment, but the long set stronger epoxies did however do very well, anything you use will depend a lot on how well you do the cleanup, and clean & dry in general, as with paintin, the preparation may be more important than most other things...
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post #10 of 15 (permalink) Old 06-15-2013, 09:56 AM
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How can i remove the sight glass from one mc and install it into another mc????

Glenn C
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