My Laverda 1000 is different?

paparracas

paparracas

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Andaluc?a-Espa?a
Repairing valve seats, I see no oil hole.

I add photos.

thumb_with_hole.jpg


thumb_no_hole.jpg


Is this normal?

Only happens to me?

What do I do?

I hope answers, thanks.

Greetings.
 
This is the view from top of the head where you see the seats of the valve guides, not the valve seats - the area, where the valve bucket sits. you see on the first pic at roughly 7:00 o'clock an oil-drain hole which is missing on the second picture. I think this is for letting the oil go back down to the sump. Not sure which line it follows/it is connected to, so be careful to drill in there...


 
Maurice needed oil drain hole, says Lothar.

Lothar, well seen, I need oil drain hole.

Intake valve is the right cylinder.

What do I do?. I shall not want grease on the crankshaft?. Will cool the valve?. What I can have problems if I leave it?.

The seat of this valve is the one in worse condition.

In what would be thinking about Laverda worker in 1979?

Thank.
 
very interesting one this.

those oil drain holes line up with corressponding oil drain holes in the cylinder block and allow the oil to drain into the crankcase at the bottom of the engine, very often leaving staines on the front inside of the cases.

This is a new one to me, I have never seen a head without the hole, are they missing on all six valves areas? is this a very early head, does it have the rubber sleeves on the carburettors or does it have alloy inlet stubs?
CLEM
 
I remember that engine is 6644, 1979.

Just missing the drain hole in the intake valve right cylinder, the exhaust duct to the engine if it exists but is not connected to the valve spring.

It has inlet stubs.

I'm thinking of doing drill connection.

It is very interesting and very disturbing?.

What would you do?.

Greetings.
 
drill it, but not by hand!, do it on a mill, use a gasket to show you where the hole comes out on the head joint area.
CLEM
 
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