Author Topic: 1989 K75 reanimation (Read 32030 times)

Laitch · « **Reply #50 on:** March 01, 2020, 05:43:10 PM »

Quote from: koshak on March 01, 2020, 04:22:02 PM

yes, i know about low level light.
but there is another functionality of fuel sender - to indicate actual level in tank, for which i would like to have suitable gauge.

As you'll discern from the links supplied in the previous post, this gauge and its splitter wiring isn't available in the States. You'll need to search the used market for BMW gauges. If you want to use gauges from a different maker, you'll need to reconfigure the wiring of your fuel sender—something probably well within your skill set. Read the boxed note in the second section of this post.

koshak · « **Reply #51 on:** September 27, 2020, 07:53:45 AM »

Month ago placed order for set of spares for rebuild from my usual supplier in Germany.
All parts collected already, but the connecting rod bolts are still missing. The delivery date was shifted, shifted, until they did not change it to status "Date unknown".

The good thing is that i am abroad now, so not working on the bike (which is now stripped to the last bolt, by the way). But if within two weeks it will not be solved, need to search alternative.

From where can i get this connecting rod bolts? New. Need 14 pieces (for K75 and K1).

Laitch · « **Reply #52 on:** September 27, 2020, 08:27:42 AM »

Quote from: koshak on September 27, 2020, 07:53:45 AM

From where can i get this connecting rod bolts?

Motorworks Scroll down the page to find crankshaft bolts.

It would be helpful for you to tell us who your usual supplier in Germany is.

Martin · « **Reply #53 on:** September 27, 2020, 04:56:37 PM »

I have fitted a Quantum kit the one without the pump to a mates Brick. The quality of the kit seemed good. We didn't fit the plastic Flexi Hose due to old guy bias but it's probably OK. I've been running a Chinese clone pump since July 2017 with no problems it even survived a couple of 1700 Km runs on 40C plus days.
Regards Martin.

koshak · « **Reply #54 on:** September 28, 2020, 02:41:01 AM »

Quote from: Laitch on September 27, 2020, 08:27:42 AM

Motorworks Scroll down the page to find crankshaft bolts.

It would be helpful for you to tell us who your usual supplier in Germany is.

Motorworks keeps them in stock or also suborder from somewhere?

I use KFM-Motorräder.

Laitch · « **Reply #55 on:** September 28, 2020, 06:39:02 AM »

Quote from: koshak on September 28, 2020, 02:41:01 AM

Motorworks keeps them in stock or also suborder from somewhere?

I operate on the belief that If they have the parts in stock, they'll sell them to me and ship them. Their listings tend to indicate when a part might not be available. If you are sensitive to where they source their parts, how long it will take you to get the parts, or disappointment in general, you probably should email them for reassurance.

koshak · « **Reply #56 on:** September 28, 2020, 11:13:04 AM »

Noted. I will wait some more time for my supplier, then will see.

koshak · « **Reply #57 on:** September 28, 2020, 11:23:27 AM »

found alternative external parts, test fit

replacement drive shaft

rear brake rebuild

start stripping

DavidATL · « **Reply #58 on:** September 28, 2020, 08:01:48 PM »

Quote from: koshak on September 28, 2020, 11:23:27 AM

replacement drive shaft

Excellent comparison of old and new splines. Do you mind if I include this image in a guide I am (slowly) writing? With credit and thanks to "koshak on motobrick.com"

koshak · « **Reply #59 on:** September 28, 2020, 09:10:45 PM »

You may use any photo from this blog.
But not kosher (what is that?) - koshak is the correct one.

DavidATL · « **Reply #60 on:** September 28, 2020, 09:54:15 PM »

Quote from: koshak on September 28, 2020, 09:10:45 PM

You may use any photo from this blog.
But not kosher (what is that?) - koshak is the correct one.

Sorry - yes, Koshak. An autocorrection that I missed. My apologies. (corrected above for posterity ;-) )

koshak · « **Reply #61 on:** September 28, 2020, 11:37:09 PM »

piece of rusty metal strip with drilled holes replaces special BMW tool 11 2 800

koshak · « **Reply #62 on:** September 29, 2020, 04:07:04 AM »

typical condition of all engine bolts

checking camshaft marks

koshak · « **Reply #63 on:** September 30, 2020, 02:41:15 AM »

findings after removing cylinder head

koshak · « **Reply #64 on:** September 30, 2020, 02:42:44 AM »

control drain hole from mechanical seal completely blocked

Martin · « **Reply #65 on:** September 30, 2020, 03:11:16 AM »

Green gunge is I believe from mixing two incompatible coolants, not all coolants can be mixed. I've had my Brick over 20 years and always used the same brand coolant mixed with distilled water and the radiator the last time I gave it a flush was totally clean.
Regards Martin.

koshak · « **Reply #66 on:** September 30, 2020, 05:36:05 AM »

As it was said in the initial post, the bike was abandoned for 15 years. I am not aware what was happening with her before or during that period.

The bright green color - traces of the new liquid i put in, when was testing bike, original color of "gunge" you can see on the last close up photo of the drain space.

koshak · « **Reply #67 on:** September 30, 2020, 11:10:36 PM »

koshak · « **Reply #68 on:** October 01, 2020, 07:54:37 AM »

tool for filter removal does not fit into hole.

will solve that later. but now for removal bottom cover to be removed

that makes job easy

Falco144 · « **Reply #69 on:** October 05, 2020, 08:00:32 PM »

Subscribed

koshak · « **Reply #70 on:** October 16, 2020, 02:46:19 AM »

further progress

output shaft

koshak · « **Reply #71 on:** October 16, 2020, 02:48:10 AM »

time for crankshaft

daveson · « **Reply #72 on:** October 16, 2020, 04:49:13 AM »

Hi,

Thanks for posting this deep build.

Question, I'm curious, could you measure or post a photo of the width of the tangs and grooves on the balance shaft gear to the balance shaft? I'm thinking from other threads that the gap might be excessive on later models, compared to the earlier ones, like yours.

The Mighty Gryphon · « **Reply #73 on:** October 16, 2020, 07:55:56 AM »

Yes, I'd like to see what yours looks like. This is my 1994 K75RT. Clanks between about 1200 and 2000 rpm.

DSCN1754.JPG (62.09 kB . 768x576 - viewed 483 times)

koshak · « **Reply #74 on:** October 17, 2020, 12:17:55 AM »

Quote from: daveson on October 16, 2020, 04:49:13 AM

Question, I'm curious, could you measure or post a photo of the width of the tangs and grooves on the balance shaft gear to the balance shaft? I'm thinking from other threads that the gap might be excessive on later models, compared to the earlier ones, like yours.

Can measure anything, why not.
But i am now not at home, but faraway. To measure need to return back first.
Bike is stripped to parts. I am just slowly posting photos of what is done.

Now busy with different thingy:

News:

Author Topic: 1989 K75 reanimation (Read 32030 times)