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R1100s models, repair information and related
- Thread starter tibork
- Start date
fbt80
Member
Tdc
Thanks Dave, anything is worth a try. I have a bore scope for working on firearms'. I'm going to stuff that in the hole and see if I can figure this out.
Thanks Dave, anything is worth a try. I have a bore scope for working on firearms'. I'm going to stuff that in the hole and see if I can figure this out.
kbasa
Well-known member
Take the valve cover off and then take off the black circular plastic bit on the right side. The driven cam gear lives under it. You should see the arrow and be able to rotate it without any special tools or anything. You want it pointing toward the case at the 9:00 position.
That should give you the physical indicator for TDC you're looking for.
kbasa
Well-known member
That's one method, but if your bike is in reasonably maintained condition, you can use the "which side of rockers have slack in them" methodology. This works on airheads, your /2 and your oil/hexheads or pretty much any rocker equipped bike. Find TDC as you normally would, via markings on the flywheel, cam sprocket indicator, whatever. With the valve covers off, wiggle the rockers. One side will be under tension. The other side will allow the rockers to wiggle a little, which means there is no spring pressure against them and they are TDC.
On an R11S that will totally work, having done it on oil and hex heads for years.
kbasa
Well-known member
Right method for the right situation, right?
fbt80
Member
R1100s TDC
Lots of ways to find TDC it seems, but I do need to lock the engine to remove the alternator pulley...or I guess put it in 1st. stand on the rear brake and have at it?
Lots of ways to find TDC it seems, but I do need to lock the engine to remove the alternator pulley...or I guess put it in 1st. stand on the rear brake and have at it?
kbasa
Well-known member
Put it in gear and have a friend hit the rear brake. Easy peasy.
fbt80
Member
Stuff I discovered in my search for no start issue
So discovery #1 there are two holes that open into the fly wheel. one here
And one waay up here blocked by the airbox impossible to get to without dismantling the battery box, abs pump just to remove the airbox ...guess which one is the one that you must insert the locking tool in? Yeah this one
So what to do...heat up a bolt and from the inside of the airbox melt a hole inline with the engine hole so a bar can be sent through the hole from the airbox...then find a rubber plug from ACE to plug the hole.
BMW engineers ( at least 20 years ago) were dirt bags. IMHO
So discovery #1 there are two holes that open into the fly wheel. one here
And one waay up here blocked by the airbox impossible to get to without dismantling the battery box, abs pump just to remove the airbox ...guess which one is the one that you must insert the locking tool in? Yeah this one
So what to do...heat up a bolt and from the inside of the airbox melt a hole inline with the engine hole so a bar can be sent through the hole from the airbox...then find a rubber plug from ACE to plug the hole.
BMW engineers ( at least 20 years ago) were dirt bags. IMHO
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fbt80
Member
Locking the R1100s crank
I figured out how to use the locking pin (above)
So, with my bike that didn't work. it would lock the rear wheel but still allowed the crank to turn as I was trying to loosen the bolt. I had to use the locking pin method...or risk using an airtool.
I figured out how to use the locking pin (above)
Last edited:
fbt80
Member
m_stock10506
Well-known member
Sorry to be a week late with this. When you get down low and look forward at the starter motor, there's an obvious hole visible. That's not the hole for the TDC locking pin. The correct hole is slightly higher and closer to the engine. If you already knew this, sorry for the duplication.
fbt80
Member
gsaddict
Pepperfool
The 1100S uses this tool to lock the flywheel because of the airbox. The starter is removed and tool inserted.
83300401562 ENGINE LOCKING DEVICE 0.05 1 $37.32
I made my own out of aluminum
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