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Old 01-22-2013, 12:59 AM   #31
georgesgiralt
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Hello !
As you've checked a lot of things without finding the culprit, I would suggest you check the basic and obvious. Sometimes overlooking basics is easy and .....
How do you measure oil quantity ?
The correct method is to unscrew the oil-stick, wipe it of and put it back on WITHOUT screwing it. Then take it out to check the oil level. Maybe you screwed it and this lead to an oil level too low to wet the pump intake when on side stand.
Forgive me if I look too much basic here, but I've seen so much strange things with old airheads by unexperienced people...
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Old 01-22-2013, 04:19 AM   #32
Beater OP
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Quote:
Originally Posted by Airhead Wrangler View Post
Ball valve at the back of the filter tube? Is it well seated and sealed? Proper clearance from cover to cannister lip?
Both of those are to be measured today ...

PS - Thanks for the reminder on the ball valve.

PPS - Heh ... You said 'ball valve' ... heh ... heh ..
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Old 01-22-2013, 05:03 AM   #33
disston
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There is also another valve in the oil system. It is on the front engine crankshaft bearing holder and it is reached by taking the timing chest cover off, that's the next cover after the front engine cover. Ordinarily the only time we see this one is when we do a timing chain. I don't remember too many details but somebody here, on advrider, had a bad one last year or the year before.

I think the one in the filter canister, ball check valve, is the filter bypass, that bypasses oil when the filter is clogged. And the one in the timing chest is the pressure regulator. That's what I think but it could be the other way around.

Both of these valves have been known to cause oiling problems.
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Old 01-22-2013, 05:35 AM   #34
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Anyone have a visual diagram of the oil passages and restrictions? I remember seeing one, but Google has failed me ...

(Probably 'User Error' )
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Old 01-22-2013, 05:40 AM   #35
JonnyCash
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Geeze, before you go worrying yourself into ulcers, why don't you just check things out with a gauge?
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Old 01-22-2013, 06:00 AM   #36
disston
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No idea if this is correct or the right vintage for your engine. There were changes through the years and it is seldom all that relevant exactly how the oil gets where it is going as long as it gets there. But here you are. I have this in my files only because I think it's a cool picture;

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