fmdualexhaust
Member
Does anyone know the amount of oil needed to go from the low mark on the dipstick to the full mark?
Thanks.
Thanks.
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If it's out there I'm not finding it. R100RS dipstick.
- Thread starter fmdualexhaust
- Start date
According to Snowbum, up to about 1980, the oil quantity between the two marks is about a quart. After 1980, it was a little less, maybe 0.9 quart. Search for "Engine oil quantities:" on this page:
https://bmwmotorcycletech.info/pangasket.htm
in the bottom quarter of the page.
Would be interesting to check this on the next oil change. After adding the first liter (quart?), let the bike sit and check the level with the dipstick. Then add the second liter/quart and see where the level settles at.
https://bmwmotorcycletech.info/pangasket.htm
in the bottom quarter of the page.
Would be interesting to check this on the next oil change. After adding the first liter (quart?), let the bike sit and check the level with the dipstick. Then add the second liter/quart and see where the level settles at.
fmdualexhaust
Member
Thank you.
A total of 2oz of oil between the top and bottom line on the dipstick? A quarter of a cup? Wow, that's not a lot!!
m_stock10506
Well-known member
Here's the oil dip stick from my 1974 R60/6.
Minimum mark at the bottom (min) 1 liter (Ltr), maximum mark (max) 2 liters. Pretty simple.
Minimum mark at the bottom (min) 1 liter (Ltr), maximum mark (max) 2 liters. Pretty simple.
It would be nice if they were all like that! My '78 R100/7 doesn't have the "1" near the min mark. And from what I can see on Anton's page with pictures of dipsticks, I'm hard pressed to see a similar "1" on any of them.
http://largiader.com/tech/oilpan/
m_stock10506
Well-known member
I wish the photo on Anton's site was higher pixel count. My 1974 dipstick looks like the top one in the photo, metal top with round sides. If you zoom into the photo it appears to have the two markings at the bottom that I photographed. Let me tell you, that top of the dipstick is HOT HOT HOT when you stop riding. Like putting your fingers on the exhaust hot.
gtgt_bangbang
New member
extended dip stick ?
Did they make extended dip sticks for the deeper pan? ty !
(still waiting to see who replies '... thats what SHE said... )
In case you wonder why I wonder, part of the benefit of a deeper pan,
specifically the greater internal air volume resulting from extended pan
which reduces the internal pressure rise when pistons are headed to the bottom of the stroke ,
is negated if the increased pan depth if filled with additional oil indicated by the shallower stick reading
Im look at MAX but so far early & late dip sticks ( including my 78 R100 's stick which worked in the shallow / early pan ) are all 290mm
oh ; Metric or Imperial dipsticks are OK by me~! ¯\_ (ツ)_/¯ I'm not prejudiced
oh heck , was looking for lüft in all the wrong places
good ol Lagiader
http://www.largiader.com/tech/oilpan/
thats odd , seems like the original (260mm from hilt -to- " Nicht über MAX Stand auffüllen" line) is the longest stick
watch out , I feel another GT special coming on ... ( now THATS what SHE said ! )
Did they make extended dip sticks for the deeper pan? ty !
(still waiting to see who replies '... thats what SHE said... )
In case you wonder why I wonder, part of the benefit of a deeper pan,
specifically the greater internal air volume resulting from extended pan
which reduces the internal pressure rise when pistons are headed to the bottom of the stroke ,
is negated if the increased pan depth if filled with additional oil indicated by the shallower stick reading
Im look at MAX but so far early & late dip sticks ( including my 78 R100 's stick which worked in the shallow / early pan ) are all 290mm
oh ; Metric or Imperial dipsticks are OK by me~! ¯\_ (ツ)_/¯ I'm not prejudiced
oh heck , was looking for lüft in all the wrong places
good ol Lagiader
http://www.largiader.com/tech/oilpan/
thats odd , seems like the original (260mm from hilt -to- " Nicht über MAX Stand auffüllen" line) is the longest stick
watch out , I feel another GT special coming on ... ( now THATS what SHE said ! )
slowpokepete
Member
Mine doesn't have any markings for measurement...just H and L.
'84 R80ST
SPP
'84 R80ST
SPP
gtgt_bangbang
New member
makes total sense; Heinekens in times o'plenty, and Lowenbraü when it's lean
kbasa
Well-known member
You don’t need to change the dipstick for a deep sump. You’re only concerned about where the fill level is and the stock dipstick will give you that. The deep sump gives you more capacity, but doesn’t change where “Full” is inside the crankcase.
But Dave, this is always the question with a deep sump. It depends on why you opted for a deep sump. "Full" is still the two liters, isn't it? If you only put in two liters, the result will be less windage, oil being whipped up inside the case. If you fill back to the original mark on the dipstick, then you are back to have the windage issues but you have theoretically more oil for some more cooling.
So which is it? It's each user's choice. Personally, if I were to do something like this, I find a happy medium and get best of both worlds.
kbasa
Well-known member
Who puts a deep sump on an airhead to reduce windage issues? My goal has always been for more capacity.
Is crank rotation in the oil in the sump reducing power? I don’t understand the windage idea I guess. Maybe in a 10k rom race motor, but airhead motors are not ever gonna rev high enough that windage matters, imho
Is crank rotation in the oil in the sump reducing power? I don’t understand the windage idea I guess. Maybe in a 10k rom race motor, but airhead motors are not ever gonna rev high enough that windage matters, imho
Moving the oil surface away and creating more volume for the air to circulate will reduce the foaming of the oil. Snowbum mentions windage issues on his website. Tom Cutter has mentioned windage on the Airmail forum. Anton mentions that adding the sump can reduce the fluctuations of pressures inside the case. Oak writes in 2016 that deep sumps are worthless, but adds that it does allow for the oil to remain cleaner since there is more to circulate. He doesn't buy into the extra cooling aspect.
The one benefit for adding a sump and filling to the "normal" level is that you don't have to change the oil filter pickup. If you add a pickup that is lower in the new pan, it's important that it is installed correctly.
This mod is IMO a personal choice by each owner.
The one benefit for adding a sump and filling to the "normal" level is that you don't have to change the oil filter pickup. If you add a pickup that is lower in the new pan, it's important that it is installed correctly.
This mod is IMO a personal choice by each owner.
gtgt_bangbang
New member
never had my head inside a running boxer, but the crankshaft is sooooooo far above the oil level
I envision that the crank snagging a bunch of oil like a honey spatula is NEVER an issue,
unless you happen to be sliding down the road on one jug or the other ,
in which case, you have bigger problems
The engine layout is vastly different than the typical 'dry' sump w/ bottom-most crank
ahh the blessings of an under-crank camshaft just keep bumping up
I envision that the crank snagging a bunch of oil like a honey spatula is NEVER an issue,
unless you happen to be sliding down the road on one jug or the other ,
in which case, you have bigger problems
The engine layout is vastly different than the typical 'dry' sump w/ bottom-most crank
ahh the blessings of an under-crank camshaft just keep bumping up
You guess right. But it's not about crank touching oil...it's about the air volume available for that crank to work in. Smaller volume, more whipping of the oil to go out the breather.
