Home › Forums › All Things 750 Twin › Projects and Progress › New Projects › Michael’s engine rebuild
- This topic has 51 replies, 7 voices, and was last updated 6 years ago by jett.
26th November 2014 at 10:42 pm #5754
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
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, Michael27th November 2014 at 11:39 am #11971KaptainkwakKeymaster
This is excellent Michael. Thank you for sharing n keep it coming please27th November 2014 at 1:58 pm #11986
I will do !28th November 2014 at 11:57 pm #11987
Some progress:29th November 2014 at 12:01 am #11988
and some more …
stored the crankshaft back into a safe place eventually 😉30th November 2014 at 7:46 pm #11989
some more progress:2nd December 2014 at 10:07 pm #11990
… 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, Michael8th December 2014 at 8:51 pm #11984TangoParticipant
OK Now that looks complicated! I’m a little apprehensive about attempting something like this. 🙁16th December 2014 at 4:57 pm #11991
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, Michael16th December 2014 at 9:57 pm #11972KaptainkwakKeymaster
Don’t keep s in suspense for too long . . . .22nd December 2014 at 9:42 pm #11992
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.
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
more pics, here the camshafts:22nd December 2014 at 10:03 pm #11994
valve shaft diameter is the same size in and out22nd December 2014 at 10:12 pm #11995
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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