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[Bullet thrasher]

Hey Beezer man

I think you might have a point. Perhaps I have been overzelously topping up and the excess has been blowing out and I've simply filled it more and not let it find it's level. I suppose it may of stabilised at its comfy level. I'm a bit para about actually having oil in my engines.
So quite possibly I've fixed a problem that didn't really exist and created another problem as a result, hmmm! Of course I now have a poorly lubricated chain and the mess may have stopped anyway had I just left the bloody thing alone for 5 minutes.

Got me thinking now.......

[Beezabryan]

Right Thrasher, your oil leak at the tappet cover will be no more than needing a new gasket or a twist of a spanner (a wrench to the yanks) on the nut. ........... The halfway oil level was mentioned here a few times & I tried it. .. Another 80 miles hatd ride today & no noticeable drop in oil level..........Mayo in the filler only occured with the breather mod, the extended filler sticks up into a nice cooling breeze, the mayo only accumulated on the top part.

[Norm]

The reason the mayo is up around the cap is because that is the highest point for the condensation to collect, condensation being steam it rises

[stinkwheel]

Some bikes just drink oil. My 350 classic will go from one end of the dipstick to the other on every tank of fuel. So say a half pint every 160 miles. It's not breathing it out. I've got a duckbill breather so it's not running over-pressure. It doesn't wet sump. It's totally oiltight (my garage floor is clean). It has a Hitchcocks tuned head and rockers fitted, a pressure bypass valve and has been rebored twice. It drank this much oil from the day I got it in totally standard trim with 1500 miles on and it still does at 20,000 miles. I just keep it topped up.

[Leon Novello]

If the dipstick has a two- click position leave it on the first click, this will leave it slightly loose and relieve the pressure in the crankcase.

[Bullet thrasher]

Mayo in the filler? I'm hoping for mango chutney

[Alan R]

Hi guys--------Tut-Tut NORM (No, that's NOT an Australian 3-wheeled taxi !!)----Condensation is steam cooled down into water thus it would drop. But I take your point about why the "Mayo" collects at the top. Anyway---- I'd go for the Onion Barghee myself."Red Dwarf" Lister is my hero----a vindaloo sandwich and last nights'lager FOR BREAKFAST !!--------sorry GRUNDA, going back onto thread now---I have Mr H's breather mod fitted and yes, given a recent 200 mile trip to a certain "OPEN DAY" in Gloucestershire there wasn't any of the nasty evident BUT----go for a slow, cross-town run and BINGO !! there it is---right on cue. I might try adding an extra vent pipe ( with filter ) exiting the rear rocker box and ending near the rear of the bike. Used to work back in the day on other makes.............

[Norm]

Being a stean man Alan I thought you might pick it but for simple explanation purposes I refered to it as condensation, but as the steam is trapped at the highest point and the fact that this is the filler neck which is subject to the airflow thus cooling it and as there is oil up in the filler neck it mixes with the oil and forms this mayo stuff. But you already knew that, this is for those that didn't know that.

[Beezabryan]

The condensate causing the mayo effect is of course from crankcase breathing into the oiltank & back to atmosphere via the Hitchcock modification, Duckbill breathes direct to atmosphere......... On later models I understand there is some catch type device to take out the water vapour emanating from blowby gases in an effort to save the world

[Alan R]

--------Sorry NORM, just teasing !!