Topic: Michael’s engine rebuild |

This topic has 51 replies, 7 voices, and was last updated 8 years, 8 months ago by jett.

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26th November 2014 at 10:42 pm #5754

Michael
Participant

Hi Boys and Girls,
Ladies and Gentlemen,

I start an own thread to give you some more information about my engine rebuild.

26th November 2014 at 10:49 pm #11985

Michael
Participant

That was the easy part.
Removing the cylinder bank / barrels is always a challange.
Today is the third day of trying, slapping and soaking. Pried it off eventually but broke a cooling fin.
Removed engine covers and and starter motor as well.

Cheers, Michael

27th November 2014 at 11:39 am #11971

Kaptainkwak
Keymaster

This is excellent Michael. Thank you for sharing n keep it coming please

27th November 2014 at 1:58 pm #11986

Michael
Participant

I will do !

28th November 2014 at 11:57 pm #11987

Michael
Participant

Some progress:

29th November 2014 at 12:01 am #11988

Michael
Participant

and some more …

stored the crankshaft back into a safe place eventually 😉

30th November 2014 at 7:46 pm #11989

Michael
Participant

some more progress:

2nd December 2014 at 10:07 pm #11990

Michael
Participant

… some more progress 😉

I have removed the valves from cylinder head:

What do you think about the black exhaust valves seat ?
Where is that coming from ?

Cheers, Michael

8th December 2014 at 8:51 pm #11984

Tango
Participant

OK Now that looks complicated! I’m a little apprehensive about attempting something like this. 🙁

16th December 2014 at 4:57 pm #11991

Michael
Participant

Hi boyZ and girlZ,

today is my last working day this year !
Holiday until 6th January 2015, hurra !
Back to work on 7th Jan., ooooh !

This evening I will pick up a crashed Z750LTD Twin, Y1 and “lock” it away in my shed. Needs further investigation what is ok and what is bent.

Tomorrow I will clean the other parts of the engine and on Thursday I have a date with Mr. Gaenssle himself 😉

We will discuss what can be done with the engine. I am really curious what a specialist in engine rebuilding and tuning has to say about it 😉
… and what the prices are ?!?

Keep you posted 😉

Cheers, Michael

16th December 2014 at 9:57 pm #11972

Kaptainkwak
Keymaster

Don’t keep s in suspense for too long . . . .

22nd December 2014 at 9:42 pm #11992

Michael
Participant

Hi guys,

the date with Mr. Gaenssle was disappointing!
He is not doing full engine restorations anymore. He is “only” doing the explicite mechanical part of that job.

I am in contact with Ulf Penner.
http://www.tuning-fibel.de/
He is a motorbike mechanic and has written a modern “book” about engine tuning. He is willing to help me finding more power from the engine and to support me with further information.

Well, some progress:

22nd December 2014 at 9:46 pm #11993

Michael
Participant

more pics, here the camshafts:

22nd December 2014 at 10:03 pm #11994

Michael
Participant

the valves:

valve shaft diameter is the same size in and out

22nd December 2014 at 10:12 pm #11995

Michael
Participant

more pics:

cylinder sleeve in engine case
(engine is upside down)

engine case is not maschined to match the sleeves. There is a minimum of 1 mm gap between sleeve and case. At some places there is even more than 1,8 mm gap between them.
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