Horizons Unlimited - The HUBB

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-   -   gasket leaking ...big problem or not? (https://www.horizonsunlimited.com/hubb/yamaha-tech/gasket-leaking-big-problem-not-27049)

Walkabout 10 Jun 2007 23:11

Progress.......
 
.....yes, there is progress!

With the left crankcase cover off it is possible to get the timing chain back onto its driving sprocket, so it is done - it is not very accessible behind the genny, but with a bit of manouvering with finger ends the chain is shifted across and the driven camshaft gearwheel at the top is also back in place while that side cover is off - the timing marks referenced in my manual (for a complete engine build from nothing) are not visible (they are hidden by the genny rotor) so I thought, at first, that I could not do the timing with the crank cover off - however, remembering that the little "window" is approximately around "north west" as Auke called it, there is only one place for the marks on the flywheel when the crank is at TDC - that's what I reckon anyway - I will be able to check this when I have that cover back in place; at worst it should need only small adjustment and no major further work.

Currently back into cleaning up mating surfaces for the replacement crank cover gasket. Damn, am I getting good at that job!!

There was nothing obviously stopping the timing chain from slipping back over its bottom sprocket - the chain guides do not touch the chain in any obvious manner - it was just a case of pushing against it with the finger ends and rotating the crank nut to take up the slack and getting the tension onto the chain.

Thanks Ted for that last information - gave me a start point for exploring the innards of that sidecover.

So, there you go, maybe I will get to ride the bitch this summer!!!!!!:clap:


Dave

Walkabout 11 Jun 2007 22:31

Good news, bad news
 
Isn't life always a case of good news, bad news!



Well the bike is all back together, even those engine support bolts are back in, thanks to the ladder jammed underneath and used as a lever to lift the engine a tad, AND it is kicking over very smoothly indeed.


The bad news is I don't have a spark!!! :confused1:
The last thing I did about 10 days ago, before I starting stripping down the mechanical bits, was start the damn thing - call it superstition or whatever, but it seemed like a good thing, just to let me know that she still wanted to go. Since then I have done only mechanical work; haven't touched the electrics at all (and when I kick it over the lights work OK, obviously if I choose to switch them on!).

So, it is a case of looking for the electrical problem next (de javu for me) - any thoughts???!!!!! :rolleyes2: :rolleyes2:

Dave

*Touring Ted* 11 Jun 2007 23:28

You'l of unplugged something and forgotten or losening an earth etc.

Start a new thread..

"Iv got no spark"

*Touring Ted* 11 Jun 2007 23:31

By the way, I hope you threadlocked the camshaft sprocket bolts otherwise they will shake lose.

Seen it happen WAY too many times.

Walkabout 12 Jun 2007 01:11

Loctite used
 
Yep, I got the loctite on them - they were a pain to get off after the first fixing so that stuff certainly works OK.


For the electrics, been there done that already:-

http://www.horizonsunlimited.com/hub...starting-26306

But this time around, nothing has changed since the bike was running - will be starting from scratch on the electrics then. :rolleyes2: :rolleyes2: :rolleyes2:

Dave

Walkabout 14 Jun 2007 16:24

End of the line
 
I don't like threads that have no ending - should finish with the complete story, don't you think.

So, the bitch (as this bike has been known in the past two weeks) is now the beast again, with a good spark and petrol = the required controlled explosion. :clap: :D



For the electrical problem, the solution is here:
http://www.horizonsunlimited.com/hub...e-has-no-27603

You were not far away Ted, lots of pulling and tugging at the spark plug cable does loosen things a bit! - it's the same old principle; what did you fiddle with or adjust or take off last.

Here endeth this thread, :cool4: (unless you want it back Pol??!)


Dave

Polly 26 Jun 2007 11:25

thanks, you're too kind
 
No thanks Dave, I don't need it back:cool4:
happy to hear your getting done with the whole buisness, congrat

I am leaving on the 6 July:scooter: , for Mongolia, fever is raising...
meet you on the road some....
Pol


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