figure 6 is the one mate

ahh, nice work mate. I think that is going to take something different. I'll send a pic to Tracey at autoillumination once I get mine out. No wonder the output is so poor on the gauges. Looks like a flashlight made for a small mouse, lol.

Hey guys,

A little off topic. Buddy just got a 79' R100. How much different is the valve adjust, ignition timing and carb sync than ours? I want to help him out a bit and he has very little experience with the old BMW's.

THanks!

OG

1979 & 1980 only have points and condensor "in a can", easy to adjust, but fiddly to get at. Valve adjustment is by screw and feeler gauge. Be sure to re-torque the heads and take note of any 'tightness' in the exhaust valves setting, especially - valve seat recession, a common ailment in those years unless it's had the unleaded conversion done, meantime. Bing CV carb sync is basic, easy, but best done using Carbstix or vacuum gauges to get it right.

Head torque is 25 ft/lbs increased to 28.5 ft/lbs, be sure to have a squish of oil at the rocker arm's endplay. These are not shimmed like the later models, unless they've been updated ala 1985 on models.
Intake valves are .10mm (.004") and exhaust are .20mm (.008") Don't pay any attention to anyone telling you to set the exhaust side to .006"!
Idle is +/-900 rpm
Ignition timing is the 'S' mark on the flywheel at idle using a strobe, then a large dot appears at full advance...2600 rpm, I reckon's good..
Carbies are easy but best done with a syncro tool to keep good balance on an opposed engine. Leave a smidge of freeplay on both choke and throttle cables. Adjust only one side throttle cable to get level air 'pull' at revs.

There are tricks but it's pretty basic stuff. Enjoy!

Too easy.

Thanks mate! He said all he knows is it's a 79' R100, lol! I'm thinking I better get over there with some tools this weekend and help him go thru the full service list.

Yep, early model with the old Ate calipers and likely 'points in a can', like a distributor under the front timing cover....remove the earth strap before you pull that cover!!! The diode board doesn't like shorts! Simple stuff, mate. Have fun.

TWB's advice about removing the earth strap is important removing the can covering will often short out the diode board if you don't. Lots of advice on the net about fixing the R100's
Regards,
K-BIKE

Thanks guys! So far so good. Kind of reminds me of my best buddies super beetle back in school.

OG

Last of the rubber bits arrived today. Time to see if we can get the old girl fired up again!




OG

Picked up a pair of the Mk II grips and really like the way they fit the hand. Thanks TWB!





OG

Yep, I likes them the best of all of the factory grips. Cheap enough too! Cheers.

Yeah, I was very pleasantly surprised what they cost from MAX.

Time for a bunch of rubber replacement.



OG



Looks like they changed the design of the bumpers a bit as well.

I'm sure most of you guys already know about this stuff. It is like the DeOxit gold of surface film protectors for rubber vinyl and plastic, and I've been using it on my old Flea-Bay fairing bits and pieces with much satisfaction. Also, the above original control switch on the left has been treated with it and the right one is a brand new unit from Motobins.



OG

Yep, this is the stuff I use...you won't go back to that Amour-all.

Ok guys its a long weekend here in the states so if I can carve out enough time in the garage and get everything thru final inspection going to try and complete final assembly and get her running. Fingers crossed!



OG



Getting all the sand out of the covers took a bit more time than I expected, but better clean than sorry.

oh wow ! ....exciting stuff og ......

good luck buddie ...gots my fingers crossed for ya

thanks mate!

the only problem I see with the powder coating is that now everything that isn't coated looks very scruffy, lol! I guess it will give me an excuse to do some more tarting next winter.



OG

looks perty nice from this angle, but the sun does have a way in gettin' in our eyes down this way. A fine job, OG, I'd say. Reckon we could all use a bit of tartin' up.

BTW, how's our man ol' Jim Callaway!? He is something. Unique.

Lol, yep most of us are suckers for the pretty ones aren't we mate! Jim is doing good and has been such an integral part of my schooling in all things vintage BMW. He finally sold his beloved RS to a friend who promptly totaled it!!

OG

Your bike is gunna be one sharp looking machine when it's finished.

Very nice work Oldgoat.

Very nice job, OG. I really enjoy reading this thread because it covers alot of topics and prompts people to contribute good suggestions. Your ideas are also inspiring.

Best of luck getting her on the road.

Thanks guys! Wouldn't have made it this far without this board and all your help.

OG

Think I found another cause of the weeping valve cover along with the cracked rubber donuts. The gasket channels in the valve cover were just a mess with baked on junk and black goo and the gasket wouldn't lie flat. After some acetone, utility knife work and some Q-tip madness hopefully it will be drip free.

mmmmm could eat of that (ifn ya held your nose , that acetone sure does stink ) lol s

really took some scrubbing to get all the remnants from the blasting off, but all the covers are ready to bolt on.

That's where a crafty use of the dishwasher on a hot cycle comes in whilst SWMBO is out for an hour or so it makes a good job of cleaning up parts. Best to whack some crockery in there afterwards though and set it running to allay any suspicions. That way when she comes back you get a gold star for running the dishwasher and super clean parts.
Regards,
K-BIKE

OMG K nearly dropped my soda when I read this!

just got back from the dealer and wanted to pass along a little info. Apparently all the newly designed seals are dry fit and no longer require the soaking in an oil bath prior to installation. Took a pic of the timing cover seals with the new one on the right.

Everything back in spec. Time for assembly!





OG

omg ...too good to ride .....giggles ....

sweet mate !!!

Covers going back on.
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Running wires for sensors & pump cover on. 24 hours for full cure and can start adding fluids.








New sensors all torqued down and wired up.

[url=https://servimg.com/view/16262455/278][/url]

Gonna get the FI & intake in tomorrow and FINALLY test the tank. Hopefully will be firing her up on the 4th for the first time in almost ten months. If I can swipe a mini cam from someone I will try to post a short clip.

OG

Nice job, OG, those refinished bits are almost perty enough to have sex with, maybe yummy enough to eat, or at the very least good enough to drink! Now to hear it purr. Kudos.

Lol, thanks mate! I've got my fingers crossed that all this has cleaned up the fuel delivery problems and that she will be running properly now...

OG

Ok guys back to work/play this morning! Put the old plugs back in as they had maybe 10 miles on them and were Ok after pretty extensive cleaning to get all the brnt on crap off. New wires going back in as and refit the new/used coils.

Hopefully, all of this will be looking more like a real motorbike by the end of the day, lol!

Intake & FI going in...

I think prior to a little scrub you could have thrown down seeds and had them grow in here, lol!

Had plenty left over after doing the sides of the tank so just for giggles put some foil on the underside of the airbox.

Have a spare set of plugs handy. I had one new one foul once and it gave me a headache, even after I cleaned it well. What did you do with the intake cam with the marked lobe?

Yeah, C I was thinking the same thing and it's certainly a little late to try and be cheap at this point, lol!

Had the #3 lobe polished and I have a very clean 85 intake waiting in the wings if/when my little experiment doesn't work out.

OG

Got the relay box done.

wholly hell ...looks better than new ......

lookin good og

Oldgoat, once again, stunning pictures and explanations on what you are doing.. and often why. I'm sure it gives a lot of us ideas..!!!
Well done as usual.

On the relay box, after recently doing the "deoxit" treatment, I have wondered what the other plugs were for in the box. One looks very similar to my fuel tank plug?

Oldgoat wrote:Yeah, C I was thinking the same thing and it's certainly a little late to try and be cheap at this point, lol!

Had the #3 lobe polished and I have a very clean 85 intake waiting in the wings if/when my little experiment doesn't work out.

OG

it'll be good og ....dont worry mate

Thanks guys! Had to work yesterday so no more progress.

OG