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1Back to top Go down   Engine swap 8V to 16V Empty Engine swap 8V to 16V on Wed Mar 27, 2019 6:08 pm

Arlina

Arlina
Life time member
Life time member
I'm pretty sure it will work, but maybe I missed something.

Can sell a K100 16V engine to a guy, who has a K100 2V.
He intend to do the swap.
Have the complete wiring, although it's cut somewhere in the middle.
Can fix that.

But here's the other;
What if I remove all wiring from the 16V engine (except the interchangable ones like the sensors hall and temp),
and we connect everything to the original K 2V wiring?

Will that work?

My guess is the engines are the same, except pistons and head.

What you guys think?


__________________________________________________
Engine swap 8V to 16V Eu-log10  K1100RS/LT - R1200RT - R1100RS (RIP) - Cagiva SST 350 Ala Verde - K75LT project
    

2Back to top Go down   Engine swap 8V to 16V Empty Re: Engine swap 8V to 16V on Wed Mar 27, 2019 6:25 pm

BobT

BobT
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Why not just buy a whole 16v bike? yo then get the brakes, the paralever and the wheels. Just so happens that I have one here, and am no so far away from you.

    

3Back to top Go down   Engine swap 8V to 16V Empty Re: Engine swap 8V to 16V on Wed Mar 27, 2019 7:06 pm

92KK 84WW Olaf

avatar
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I know that K too...........its a nice one!!!!


__________________________________________________
1992 K100LT 0193214 Bertha Alaska Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 105,200 miles
1983 K100RS 0011171 Fricka 606 29,495 miles Damn K Pox Its a Bat outta Hell Now 36,188  miles
    

4Back to top Go down   Engine swap 8V to 16V Empty Re: Engine swap 8V to 16V on Wed Mar 27, 2019 7:43 pm

Laitch

Laitch
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@Arlina wrote:My guess is the engines are the same, except pistons and head.

What you guys think?
The electronic engine management systems differ.


__________________________________________________
1995 K75 77,000 miles
Engine swap 8V to 16V Usa-lo10
    

5Back to top Go down   Engine swap 8V to 16V Empty Re: Engine swap 8V to 16V on Wed Mar 27, 2019 8:14 pm

Arlina

Arlina
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@ BobT; not the option, not my call on the bike/engine. I sell the engine to a guy with a K100 8V.

@ Laitch; True, but the 8V wiring should work, only have to take the airbox to the 16V engine.
    The sensors should be the same, also the coils.
    Not sure how the engine will handle it.

I have a K1100LT wiring loom with it, and the right computer, shedtime will be longer replacing the loom too.

We were just curious if only the engineswap will work.....
I could try it myself, have the engine, and all parts to build up a K100 8V (RT), but missing time and space.
Clutch replacement of my R1200RT coming up, means, the frontend can stay, all other parts must come off the bike to reach the clutch. 2-day job....
Then, a Zundapp CS50 1970 needs a complete overhaul.
Then, my Caviva SST 350 Ala Verde needs a complete overhaul.
And my boss likes to see me 40 hours a week.... Twisted Evil

My K is a K1100RS with LT fairing, I replaced the loom  to the LT too, was a nice job Smile


__________________________________________________
Engine swap 8V to 16V Eu-log10  K1100RS/LT - R1200RT - R1100RS (RIP) - Cagiva SST 350 Ala Verde - K75LT project
    

6Back to top Go down   Engine swap 8V to 16V Empty Re: Engine swap 8V to 16V on Wed Mar 27, 2019 8:39 pm

RicK G

RicK G
VIP
VIP
The swap can be done but it is not a straight forward move. Many of the sensors are different the ECU is very different and there is no ignition module on a 16V the throttle position sensor is very different although it appears very similar. there is no AFM on a 16V and the injectors are also different just to name a few.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

7Back to top Go down   Engine swap 8V to 16V Empty Re: Engine swap 8V to 16V on Wed Mar 27, 2019 8:52 pm

Arlina

Arlina
Life time member
Life time member
Figured that out Rick (K100 FB page).
Swap those sensors too, and injectors, what will happen?


__________________________________________________
Engine swap 8V to 16V Eu-log10  K1100RS/LT - R1200RT - R1100RS (RIP) - Cagiva SST 350 Ala Verde - K75LT project
    

8Back to top Go down   Engine swap 8V to 16V Empty Re: Engine swap 8V to 16V on Wed Mar 27, 2019 11:23 pm

duck

duck
Life time member
Life time member
You have to have everything apart anyhow so to me it makes more sense to:

a) just buy a K100RS4V as suggested

or

b) swap in K100RS4V wiring while you have things apart



Last edited by duck on Thu Mar 28, 2019 12:52 am; edited 1 time in total


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
98 Taxi Cab K1200RS
14 K1600GT
http://www.ClassicKBikes.com
    

9Back to top Go down   Engine swap 8V to 16V Empty Re: Engine swap 8V to 16V on Thu Mar 28, 2019 12:31 am

RicK G

RicK G
VIP
VIP
Changing the complete wiring harness would be the easy way. Further to what I mentioned you will need the coils, handlebar switches (different plugs) temp sensor, plug leads, fuel rail and probably more.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

10Back to top Go down   Engine swap 8V to 16V Empty Re: Engine swap 8V to 16V on Thu Mar 28, 2019 5:00 am

Arlina

Arlina
Life time member
Life time member
@Duck; We know the possibilities, and we have it.
           Was just the question if we can boldly swap the engine without the electrics.


__________________________________________________
Engine swap 8V to 16V Eu-log10  K1100RS/LT - R1200RT - R1100RS (RIP) - Cagiva SST 350 Ala Verde - K75LT project
    

11Back to top Go down   Engine swap 8V to 16V Empty Re: Engine swap 8V to 16V on Thu Mar 28, 2019 5:24 am

duck

duck
Life time member
Life time member
@Arlina wrote:@Duck; We know the possibilities, and we have it.
           Was just the question if we can boldly swap the engine without the electrics.

There's really only one way to find out.

I suspect that it is possible though.  I once owned a K1100RS that had been retrofit with a motor from a K1200LT.  The guy I bought it from accomplished it using the K1100 electrics and Motronic.  It ran fine.  The guy I bought it from put quite a few miles on it before selling it and I rode it diagonally across the US.  And it's still running well for its current owner as TWB can attest to.


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
98 Taxi Cab K1200RS
14 K1600GT
http://www.ClassicKBikes.com
    

12Back to top Go down   Engine swap 8V to 16V Empty Re: Engine swap 8V to 16V on Thu Mar 28, 2019 11:42 am

Two Wheels Better

Two Wheels Better
Moderator
Moderator
Purely physically the 16V engine will fit in place of the 8V engine. There are slight differences in sensor connectors, water outlet position (gooseneck), the lack of injector ports in the head of the 16V, & etc. It will need, at the very least, a mix of 16V & 8V injection and ignition components such as the 16V intake boots due to the FI ports being in them. The clutch disc and housing are the same, but the engine breather apparatus is different...

When I fit a K1200RS engine to a K100 (then later K1100) frame, I was very glad to have a nearly complete set of pieces from each model available to me. The result is the Big Block. Let me say there are pieces from all models incorporated to make it go. You can do it, but it is not entirely straightforward.

Now I am attempting to install K12 fuel injection & wiring to a K11 motor in a K100 frame.

As Duck says, the K12LT in my younger brother's K1100RS is still running strong with well over 130,000 miles in total on the combination.


__________________________________________________

Sometimes I lie awake at night, and I ask, "What can I do to keep my life from going by so fast?" Then a voice comes to me that says, "Try slowing down at the corners." 

~Charlie Brown

1970 R60/5, '77 R75/7-R100, '85 K100'87 K75C, '87 K100RS, '93 K11-K12 Big Block, '93 K1100RS, '95 R100-Mystic, '96 K1100RS, '98 K1200RS, '00 K1200RS, '02 K1200RS, '03 K1200GT, '04 R1150R'04 R1150RT, '05 K1200S, '06 K1200R, '07 K1200R, '09 K1300GT & 2013 R1200RT-Polizei  - Beemers owned still or sold.

    

13Back to top Go down   Engine swap 8V to 16V Empty Re: Engine swap 8V to 16V on Thu Mar 28, 2019 12:13 pm

Arlina

Arlina
Life time member
Life time member
Thanks Duck and TWB Smile


__________________________________________________
Engine swap 8V to 16V Eu-log10  K1100RS/LT - R1200RT - R1100RS (RIP) - Cagiva SST 350 Ala Verde - K75LT project
    

14Back to top Go down   Engine swap 8V to 16V Empty Re: Engine swap 8V to 16V on Thu Mar 28, 2019 12:52 pm

Point-Seven-five

Point-Seven-five
Life time member
Life time member
I can't speak to the fuel and ignition systems, but I know for sure that the 16v engine can be very happy with the older 2v exhaust system.  In fact, because of some minor differences, the 2v exhaust will probably fit on the 2v frame better as well.


__________________________________________________
Present:
1994 K75RT
1991 K100RS
1988 K100RS SE

Past:
1994 BMW K75S
1992 BMW K100RS
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

15Back to top Go down   Engine swap 8V to 16V Empty Re: Engine swap 8V to 16V on Fri Mar 29, 2019 6:32 pm

AL-58

AL-58
Life time member
Life time member
My sidecar is an '87 K100RS (8V).  I have fitted an 1100 16v.  In my case I fitted the entire engine complete with 1100 throttle bodies and plenum, plus the 1100LT loom and Motronic unit. That way there was no issue with trying to adapt anything to the 8V.  Everything that's meant to work works fine.

The only issues to tidy up still are an ABS unit plug hanging in the breeze (which doesnt concern me at all to be honest) and the Motronic mounting.  In the 1100 it stands vertical bolted next to the 19AH battery.  I'm running a 30AH battery leaving no room there, so its still cable tied to the top of the battery clamp; one day...

I do have intentions of fitting an 1100 into my K100RT, my intention is to fit all of the 8V parts (1100 throttle bodies already fitted minus TPS, AFM, inlet stub) to the 1100 engine and just plug it in to the existing bike.  I already have the bits, it just requires the time/effort.

Al


__________________________________________________
'87 K100RS/HRD sidecar (1100 motor)  sc25 
'92 K100RS-16v (Paint it Black)

'87 K100RT with Paralever backend

"When I'm too old and too foolish to handle a sidecar I'll buy a Sportsbike"

Engine swap 8V to 16V K-dogs10
    

16Back to top Go down   Engine swap 8V to 16V Empty Re: Engine swap 8V to 16V on Fri Mar 29, 2019 10:18 pm

Two Wheels Better

Two Wheels Better
Moderator
Moderator
Back in October last year I was at the Spaghetti (MotoGuzzi) rally in rural Victoria, and earlier at the Geehi Hut campout. There was a bloke at those with a late '80s K100RT using an 1100 engine, and he too had used the 1100's engine loom and Motronic. As far as I recall from playing round with the variations, a K100 chassis loom will click with an 1100 engine loom, ABS and other ancillaries to be considered.


__________________________________________________

Sometimes I lie awake at night, and I ask, "What can I do to keep my life from going by so fast?" Then a voice comes to me that says, "Try slowing down at the corners." 

~Charlie Brown

1970 R60/5, '77 R75/7-R100, '85 K100'87 K75C, '87 K100RS, '93 K11-K12 Big Block, '93 K1100RS, '95 R100-Mystic, '96 K1100RS, '98 K1200RS, '00 K1200RS, '02 K1200RS, '03 K1200GT, '04 R1150R'04 R1150RT, '05 K1200S, '06 K1200R, '07 K1200R, '09 K1300GT & 2013 R1200RT-Polizei  - Beemers owned still or sold.

    

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