Oil Sight Glass

  • Thread starter Thread starter roger miles
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roger miles

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Warning, changing your oil sight glass may not be as easy as you think!

Took my 1150 in for a MOT the other day and although it passed OK, the spannerman pointed out the oil sight glass was leaking slightly. Although this was a new phenomenon I was concerned that it might get worse or blow out as I have read in earlier threads. I therefore decided to change it myself………….

The spanner man and the manual both said “insert screwdriver blade between seal and glass and gently prise out”. It *@>#”! wouldn’t!!!!!!!

I broke the glass which was perhaps to be expected but there was no way I could persuade it to shift in the manner described.

Eventually managed to remove it using a draw hammer but it required so much force I had to destroy the entire assembly, removing first the chrome back plate and then the outer sealing ring.

Drifted a new one in without any problem using a suitable size socket. Incidently the spannerman recommended using saliva/water, not oil as recommended in the manual as he reckoned it would be more likely to pop out with oil?
Took her for a blast and she now seems ok?

Although I consider myself reasonably competent mechanically (having had British bikes for years) I would offer a word of warning to anyone else tempted to carry out the job themselves. If you had to use as much force as I did you would have to be very careful not to damage the seal housing etc.

The questions remain:
As the new one fitted back in comparatively easily, how often do they blow completely out.
Did they ever manufacture a bracket to hold it in on the 1150GS and if so I want one for my own peace of mind !!
 
roger miles said:
The questions remain:
As the new one fitted back in comparatively easily, how often do they blow completely out.
Did they ever manufacture a bracket to hold it in on the 1150GS and if so I want one for my own peace of mind !!

You need one of these. If you ever get round to making one, I'm sure you'd have plenty of customers....:)
 

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If the site glass is plastic:confused: :D , you could drill it, put a screw into it and then pull on the screw to get it out. Maybe?
 
Steve, I remember seeing the bracket before but does it fit a 1150 and if so where do they come from? Sounds like a likely project for Vern?
Mr T, It is glass and shattered quite early in my endeavour. The back plate is "pre-drilled" and lends itself to a draw hammer type extraction but the whole thing still required considerable force and disintegrated before coming out!
 
roger miles said:
Steve, I remember seeing the bracket before but does it fit a 1150 and if so where do they come from?

Dunno mate. It's just a stray photo that Greg found on the web somewhere.
 


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