Oil sight glass

discussion about the 750 Sport and '89/'90 900SS, which share many mechanicals with the Paso series
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fester
Posts: 66
Joined: Tue Dec 03, 2013 7:41 am
model: 900 SS
year: 1989
Location: Gympie Qld Australia

Oil sight glass

Post by fester »

Hey guys does the oil inspection and timing sight glasses press out of the cases to be reused or do you have to buy new ones. Thinking of getting the clutch and alternator covers powdercoated.
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Derek
paso grand pooh-bah
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Joined: Thu Nov 03, 2011 10:13 am
model: 907 I.E.
year: 1994
Location: Scotland

Re: Oil sight glass

Post by Derek »

They can be pressed out but apparently they are a helluva job to press back in again. Maybe you should talk with your coater and see if they can be masked off.
1994 907ie
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Mc tool
paso grand pooh-bah
Posts: 1874
Joined: Wed Dec 05, 2007 12:35 am
model: 906 Paso
year: 1990
Location: Newzealand

Re: Oil sight glass

Post by Mc tool »

They are not to bad to get out , but be real careful , I broke the glass on mine and had to buy a new one , which was easy to fit but again think about how you are applying pressure to it , don't try to tap it in with a punch ... not even round the rubber edge , you need to get the right sized socket and PRESS it in gently . If I had to do it all again I would just cover the thing and paint round it . Powder coating does have a nice finish , but no better that properly applied paint and a lot more work .
I wish I was young again............Id be heaps smarter than last time
fester
Posts: 66
Joined: Tue Dec 03, 2013 7:41 am
model: 900 SS
year: 1989
Location: Gympie Qld Australia

Re: Oil sight glass

Post by fester »

I'm not sure if the sight glass would hold up to the baking of the powdercoat even if it were masked off. Certainly I'd be concerned about the seal part.

I have tossed up painting but the powdercoat should be a lot cheaper. To do a good job I think a 2 pak style of paint would be best and I am tossing up doing the outer covers in a similar matt gold to some of the later bikes (whilst retaining the cases, barrels and heads in black). I have 2 pak primer on hand and gloss clear however to do the matt gold I need to buy the colour and a matt clear to protect properly and by the time I buy those I expect powdercoating to be cheaper. We use a powdercoating business through work so I expect a better price again, just waiting on a quote to come back but that is the thinking against painting. Even if I were to take them to a painter I know with my own colour and he would have the correct clear on hand by the time you add his labour I still don't think it will be as cost effective as powdercoating.
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paso750
paso grand pooh-bah
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Joined: Sun Jul 18, 2004 12:00 am
model: 750 Paso
year: 1987
Location: southern Germany

Re: Oil sight glass

Post by paso750 »

Depending on the powder used oven temperatures are in the range of 120-240°C as my powdercoater told me and specially some of the oil inspection windows Ducati used were known not to take heat to well as they could start to leak or become dull.

This is how the thing looks like
http://www.stein-dinse.biz/Komplettange ... tyPhoto/0/

What you should discuss with your powdercoater is what to do with the area where the sight glass is located. Ideally that area would remain untouched to ensure that it still seals properly. Bead blasting could roughen the sealing surface and powdercoat could become too thick giving you problems to get a sight glass back in place. I`m sure your powdercoater will have experience with things like these.

G.
fester
Posts: 66
Joined: Tue Dec 03, 2013 7:41 am
model: 900 SS
year: 1989
Location: Gympie Qld Australia

Re: Oil sight glass

Post by fester »

They are very good with threads and bolts on the stuff we get done for work and I have spoken to them and they do a lot of motorbike stuff so I don't think covering the area will be a concern. At any rate I can machine something up to bolt through the hole if it comes to it. I had a couple of clutch covers done a couple of years ago without issue so the side covers should not be different (fingers crossed always).
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