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Ray

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Discussion starter · #1 ·
Hi. I’ve done an oil & filter change & replaced the oil as per the specs. Wasn’t thinking and put the full amount of oil in. It’s now overfilled.

I’ll slowly drain out the excess. Unfortunately I did go for a ride first...

My question is, is the max level in the oil window designed to viewed when the bike is on its side stand or standing fully upright?

Cheers.
 
#4 ·
Normally you check the level holding the bike upright, but on the paddock stand is fairly close.
Logically though, you will only start to get problems if the crank is dipping into the oil, and as far as I can guess, that is way above the sight glass.
You could calculate the absolute max level if you look up the stroke, halve it and measure down from the "phonic wheel inspection cap", adding a bit for the big end.
 
#7 ·
What kind of damage can occur with an overfill
Click to expand...
I know an owner whos Tornado was overfilled with oil. Next run before he got to the end of the street the oil had blown up through the airbox and leaked down covering the front wheel and brake.
Definitely not recommended. :doh:
 
#8 ·
It's a big difference between filling to the brom vs 1-2 dl.
On the Ducati i once had a leak where petrol mixed with the Oil, i have absolutely no idea how or why that happened, but the sad outcome where that i shattered internal bearings.
 
#10 ·
Desmodude said:
On the Ducati i once had a leak where petrol mixed with the Oil, i have absolutely no idea how or why that happened, but the sad outcome where that i shattered internal bearings.
Click to expand...
Unlikely that was compression lock, where the level got so high that it locked the piston from completing its downward travel. The oil would have been blown out the breather like Laurence stated.
Most likely the fuel wrecked the lubricating qualities of the oil, effectively running the bearings dry.
The more common cause of compression lock is when you drown an engine. Water is ingested into the cylinder, which of course, won't compress. I've known of a few engines that suffered this, but none had lasting damage. One needed new rings.
 
#11 ·
Yes it spilled out the breather, sprayed down the shock and rear wheel.
Carburetted bike, so closest what comes to mind is flooded carbs.
I did flush the system several times, but as you said i'll guess the petrol dried out bearings and the engine lasted only 50 ish km after that.
This was allso my oldest engine with the most km (modified Bifaro engine, 750 twin with a kickstarter)
But as everything, it's only mechanics, i will rebuild this one as well when i got the spare time, for now the Amazonas have all my attention where i need to take care of the awfull noise from starting the bloody thing, guess it's one of two, Z25 or sprag clutch.
 
#12 ·
Reminds me of when my wife got her first car. She decided to "top the oil up" at a local garage and finally called me to ask how much it should take after buying two gallons of 20/50. "Don't touch a thing.....don't try to start it" I said before shooting round there. There's nothing like lying on a garage forecourt draining 6 pints of oil out of an engine to draw abuse.
 
#14 ·
Sprocket said:
Reminds me of when my dad checked the water level in the radiator of my sister's mini. Not being used to cars with transverse engines, he mistook the rocker cover for the radiator and proceeded to fill the engine with water.
Click to expand...
Did you ever read "Sun On The Stubble" by Colin Thiele?
Cracking read.
One chapter is about the family buying it's first car. The manual said to drain the oil at 1000 miles. It didn't mention filling it again ........
 
#16 ·
Sprocket said:
I hadn't heard of the book. I'll see if I can get my hands on a copy.
Click to expand...
We studied it in high school. Its a cracking read, and growing up on the outskirts of the Barossa, I could see the "characters" all around me!
You would have heard of "Storm Boy". Probably Thiele's most famous novel.
His best though, I reckon was "Labourers In The Vineyard". I need to pick it up again to see if it still rates after 40 years.
 
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