Author Topic: Remove oil level window on tank  (Read 4071 times)

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Offline verygary

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Remove oil level window on tank
« on: November 30, 2015, 09:29:19 PM »
Has anyone successfully removed and replaced the round oil level window on an oil injected 90?  I would like to strip and powdercoat the tank but fear the plastic window and rubber frame wouldn't stand up to the heat.  Ideally I'd like to reuse the window after powder coating since I doubt replacements are available. Any help is appreciated.

Online BS Mechanic

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Re: Remove oil level window on tank
« Reply #1 on: November 30, 2015, 10:47:46 PM »
Yes, the heat to powdercoat will damage the window.

My preferred method to remove the window is to carefully pry around the edge of the rubber seal with a not quite sharp knife edge.  It needs to have enough of an edge to catch on the rim of the rubber seal, but not sharp enough to cut it.  You just pry it out a little at a time, and slowly work your way all around.  It may take a while, but this will get the window and seal out without damage so they can be reused.  Last I knew, Richard had windows available if yours does need replaced.

Offline slawsonb

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Re: Remove oil level window on tank
« Reply #2 on: November 30, 2015, 11:17:28 PM »
Hey verygary. I see this is your first post, so welcome to the world of BS.
With the window removed per the instructions from BS Mechanic, you can safely clean and paint or powder the tank.
When you get ready to put the window back (or install a new one) use a little clear sealant on the outer edge and around the inside diameter it fits into. Not much required. Just enough to seal it up and not leave a mess to clean up. Good luck.
BTW, you'll find contact info for Richard Clark (the site owner) under the "Click Here for Parts" button.
...bert

Offline coxy

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Re: Remove oil level window on tank
« Reply #3 on: December 01, 2015, 03:49:30 PM »
Gday verygary
I found that using a dental tool is the best for removing sight windows a small pointy hooked one. Once I didn't even damage the paint will post a picture later cheers

Offline verygary

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Re: Remove oil level window on tank
« Reply #4 on: December 02, 2015, 12:41:57 PM »
Thanks to everyone for the help.  I'm headed out to try removing the window with your advice.  I've got the bike almost completely disassembled and the motor out.  Really enjoy figuring out all the little nuances.  I have a collection of 6 small Hondas I've restored but this is the first Bridgestone and first two cycle I've attempted.  I would add a picture of the bike as I bought it but haven't figured out how to do that yet.

Offline slawsonb

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Re: Remove oil level window on tank
« Reply #5 on: December 02, 2015, 01:05:21 PM »
When you reply to a post, open the Additional Options list (select the + button). Use the Browse function to add a picture to your post. This requires the pic you want to attach be on your desktop (not sure why, but that's the deal). Give it a try!
...bert

Offline verygary

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Re: Remove oil level window on tank
« Reply #6 on: December 02, 2015, 04:12:38 PM »
Here's a picture of the project bike right after I brought it home.  At least I hope there's a picture. 

Offline slawsonb

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Re: Remove oil level window on tank
« Reply #7 on: December 02, 2015, 05:04:24 PM »
Nice bike! (and nice job on the picture post...;-)
...bert

Offline verygary

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Re: Remove oil level window on tank
« Reply #8 on: December 02, 2015, 09:07:20 PM »
Well, the oil level window removal didn't go well.  Worked slow and easy but still couldn't get it to lift. I eventually tore the top rubber flange, which seemed to be glued down, but after it was out of the way I did mange to get the rest of the unit out.   Hopefully the host of this site has a replacement in stock.  I've sent him a preliminary list of parts but haven't heard back from him.  Again, thanks for the help. 

Offline mqtsteve

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Re: Remove oil level window on tank
« Reply #9 on: December 03, 2015, 05:48:11 AM »
Welcome to the group.  Nice looking bike.  Looks to be pretty complete.  Be patient while waiting for a response from Richard.  It may take a few weeks to hear from him.  Good luck with your project, Steve
Steve S.
4/1966 BS90 Sport(o.i.), 5/1966 BS90 Sport(o.i.),
1965 BS90 Trail, 1965 BS90 Mountain

 


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