Author Topic: K75 Engine Swop Questions  (Read 2315 times)

Offline bluebossa

  • ^ Proficient Motobricker
  • Posts: 155
  • K75 and R65 Owner
K75 Engine Swop Questions
« on: August 11, 2018, 10:52:03 AM »
Howdy,

So - got me a replacement lump for my K75
It's a K75 RT 94 (my bike is a 91 RT) with 53k miles and said to be good, but who knows! - to try and get my K back on the road
- read other threads for that saga!

Few questions - I've meanwhile set to cleaning it up and getting it in shape to fit on the bench.

1. What's the easiest way to replace - split the frame front and rear, drive and front separation first, or fit in situ - unbolt, drop and lift back in?
I've seen the YouTube Vid on splitting the Bike to get the Drive and Engine into one piece - is this the best way to replace Engine..

2. Any checks I can do on the bench? Engine turns freely but obviously easy to access at present?

3. Beyond a replacement Clutch plate, any other recommended actions to help it's long life?

Couple of pics attached.

Thanks in advance... 
  • UK
  • K75 RT
Current Bikes: K75(RT) in the UK (06/91), R65
Former Bikes:  R850R, K1100RS, Dnepr MT10-36
BMW R65 and K75 Blog

Offline rbm

  • ^ Quintessential Motobricker
  • Posts: 2283
Re: K75 Engine Swop Questions
« Reply #1 on: August 11, 2018, 02:00:43 PM »
1. What's the easiest way to replace - split the frame front and rear, drive and front separation first, or fit in situ - unbolt, drop and lift back in?
I've seen the YouTube Vid on splitting the Bike to get the Drive and Engine into one piece - is this the best way to replace Engine..
My advice would be to follow the detailed procedure in the BMW OEM service manual for the 2V K-bike.  This is in Section 11, pages 11.25 - 11.33.  I've done it single-handedly and it's straight forward.  As they say, installation is the reverse of removal.
  • Regards, Robert
Toronto, Ontario

1987 K75 - Build Blog @http://k75retro.blogspot.ca/

Offline bluebossa

  • ^ Proficient Motobricker
  • Posts: 155
  • K75 and R65 Owner
Re: K75 Engine Swop Questions
« Reply #2 on: August 11, 2018, 03:19:24 PM »
My advice would be to follow the detailed procedure in the BMW OEM service manual for the 2V K-bike.  This is in Section 11, pages 11.25 - 11.33.  I've done it single-handedly and it's straight forward.  As they say, installation is the reverse of removal.

Wilco - I've got the Haynes manual too...
  • UK
  • K75 RT
Current Bikes: K75(RT) in the UK (06/91), R65
Former Bikes:  R850R, K1100RS, Dnepr MT10-36
BMW R65 and K75 Blog

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