MOTOBRICK.COM
TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: TimTyler on April 28, 2014, 06:54:06 PM
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Grrrr. Always used Mobil 1... until last month I tried Valvoline 20w50. Grrrr.
Just poured in some Rislone concentrate. Waiting for eldest son to come home for a push start.
Mobil 1 is on the bench waiting for me to run this Rislone for a few hundred miles. Grrrr.
http://youtu.be/orgXxsS-DzM (http://youtu.be/orgXxsS-DzM)
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A guy on another forum is trying Rislone with no success. A well known, published Guru told him that Rislone is not strong enough, and to use VALVE MEDIC(yellow bottle) or CD2 oil detergent. I have heard good things about CD2 in the past.
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That would be Paul Glaves. As if he knows anything about K75's. :hehehe
Yeah - I'll get some of that now.
BTW - The bump start down a little hill worked on the first try. 20 Miles was enough to free the sprag clutch, but I can tell it's still sticky.
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Yep, that's him. I wasn't sure if it was OK to name names.
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I added the yellow CD2 to the oil at the top of a big hill in case I should need to bump-start again.
Rode 50 miles to Aberdeen, WA in 4th gear, about 6000rpm, and then 50 miles back to Oly in 5th. Drained the oil and filter as soon as I got home. Filled her up with the Mobil-1 and the sprag clutch operates as it should. For now anyway.
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me thinks that every couple years or so motobrickers of earth oughtta run some of that stuff the last 2 or 3 hundert miles before an oil change... know what i mean...
j o
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new to this site and this is my first post:
i have to ask: how does an engine oil change affect the starter sprag clutch operation?
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The rollers in the clutch get crapped up and sticky. A good detergent/synthetic cleans and prevents the problem it seems.
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new to this site and this is my first post:
i have to ask: how does an engine oil change affect the starter sprag clutch operation?
The sprag is lubricated with the engine oil in the intermediate housing.
The cleaner you can keep the insides the less likely the sprags will get sticky and hang/drag
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Other stuff that woks well is Seafoam.
The problem with the sprag wasn't caused by just one change with Valvoline. The gunk builds up over time and the high detergent oils or additives removes enough/most of it so it functions normally.
The real problem is; that these bikes are all 25+ years old and unless you're the original owner, you have no real idea of how well or poorly they have been maintained.
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You're right, Keith. I will continue to blame it on the oil though :)
Surprisingly I actually have a fairly complete maintenance history of my bike going back to the original owner. I am owner #4. I tracked down owner #1 from his name in the owner's manual I received with the bike which has a recorded service history for the first decade. I sent him some pics when I bought it and he was pretty excited to see it still on the road. Owner #2 is a mystery but I know he was older and owned another K75, and mine was for his wife. Owner #3 gave me a book full of dealer maintenance receipts and I could tell he was a conservative rider.
I'll take JO's advice and run some detergent through the engine for a few hundred miles before oil changes.
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its been said by bmw master technicians that its not unusual for a bmw dealer to charge service customers for items on the work order and invoice that was not done...
j o
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its been said by bmw master technicians that its not unusual for a bmw dealer to charge service customers for items on the work order and invoice that was not done...
j o
+1 there. Personally experienced that with a dealer I no longer visit. :nono
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Another reason to reconsider visits to the dealer for service -- this is Chris Harris' WTF clutch spline video in case you haven't seen it. The good part starts around 2:00...
BMW Service - Who was in here last?!! (http://www.youtube.com/watch?v=6FOsdfnv9Kc#)
I got some CD2. Here's my issue for today --
I drained the almost -fresh Mobil 1 and left it in the drain pan while it was too cold to work on the bike...probably a couple weeks -- not sure how long. Not sure what kind of stinkbugs, critters or other airborne crud might have crawled into the pan while it was sitting. I want to add some CD2 and run it for a few hundred miles before next oil change. Was thinking of running it through a screen strainer...has anyone filtered oil for any reason and what did you use?
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i drain my fluids through the cuisinart gtf4... (http://www.filtersfast.com/P-Cuisinart-GTF-4-Gold-Coffee-Filter-4-Cup.asp)
fork oil... engine oil... gear box oil... swing arm oil... final drive oil... coolant... brake fluid... cannaboil...
j o
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That's a potent cup-o-joe. Sticks to the roof of your mouth.
You ch1tten me there Johnny? I have one of those and I will use it for that since it doesn't t get used for anything else. Never will again either.
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ch1tten you...
look... i even drain my poo through there looking for nuts and corn and blueberries to recycle...
j o