Cold Start / Chain Tensioner / Busted Motor JUNK TENERE ??

[Ramseybella]

I was just suggesting the Tenere is not a B-17.. :-\

 

[Zepfan]

Gonna be fun! ::010:: starting re assembly
Pulled the cylinder body to replace lower gasket and bent a oil ring trying to feed piston back into cylinder.
Ordered from Japan one ring set $130.
Gulp, I sure hope this ain't a "can of worms."

Need 2 people to feed pistons and ring compression by hand back into cylinders.

 

[Checkswrecks]

Good luck!

 

[EricV]

Gonna be fun! ::010:: starting re assembly
Pulled the cylinder body to replace lower gasket and bent a oil ring trying to feed piston back into cylinder.
Ordered from Japan one ring set $130.
Gulp, I sure hope this ain't a "can of worms."

Need 2 people to feed pistons and ring compression by hand back into cylinders.

You can often rent/borrow a ring compressor tool from auto parts stores. It's just a simple cylinder that can be adjusted for different size pistons, squeezes the rings down and then you push the piston into the engine cylinder so the rings don't get damaged.

 

[Xt1200zsupertenere]

Ouch!
So what'cha thank on the broken bit Jax? Back to the title....... JUNK TENERE ??

Valve guide ?? I have A swidisch bike magasine where they drove A super tenere 2011 hard for 50 000 km ( 30 000'miles ) ...
On that one there were nothing work in engine , BUT A little bit of the valveguide hade broke of : :

 

[steve68steve]

Hey Zep, did you get it all back together yet?

 

[Zepfan]

After bending one oil ring trying to feed cylinders back over pistons, over a month of waiting for parts, the motor is back in the bike. ::018::
I had to install 2 new pistons due to bending the ring.

Had a bud help me assemble. The cylinders / pistons ect.and feeding the rings back in tricky, lot's of attempts to feed in. compressing by hand and a little screw driver.
Bud had a electronic torque wrench so settings and degrees a breeze. Using standard feeler gauges to read metric clearance on valves was a head scratcher for about 15 min. finally figured it out and gaps were good!
Used floor jack and pry bars to shake, shimmy and roll engine back into position quickly. Swing arm back on and I'm back to solo figuring out all the connections and runs.
Knock on wood, a good start with help. Any assembly by yourself is nearly impossible.

 

[Nikolajsen]

Big job, some bump on the way, but in the end the S10 is ready again

 

[OldRider]

It looks like the 12 piston & rings come as a set and the 14 and up models list the piston and rings separately. Why not use the 14 parts when rebuilding an early model motor? They use the same crank, rods, piston pins and cylinders so the pistons & rings have to be interchangeable. That way if you break a ring you can buy another set for 15-20 bucks. What am I missing here?

 

[Xclimation]

Happy to hear the progress!!!

Did you ever find out what that broken piece was?

 

[Thrasherg]

Maybe I missed it, but in the end, what was damaged and had to be changed? Glad to hear you have got it back together and fingers crossed that it starts and runs great, but curious what actually got damaged in the end and where did the piece of metal that you found come from?

Gary

 

[Ramseybella]

Yeah that piece of rogue metal has more interest now than ever.. ::017::
Hope she fires up smooth and get back to riding. ::008::

 

[Zepfan]

She Lives !!!!!!

Came back to life today. She sounds and runs great. No more noise for a few seconds on cold start.....LOL

The Specs Chain slap on cold start. Dealer mentioned when I was in for a valve adj. Both dealer and myself unaware of "known," .... CCT "issues."
I had been hearing the noise on most every cold start since about 50-60k/mi. CCT failed with 80176 mi.
Took into dealer and performed leak test w/ "leaks all over, exh & int". Dealer wants $800. to drop motor. Svs writer kept telling me to scrap the bike.
Striped off all the swag and called a couple recyclers, no one wanted it. With encouragement and advise here, I started work.
Chain skipped on Exhaust side cam. Ignored advise to just re-time and dropped motor. Inside was really good no problems (carbon).
Bent one oil ring trying to replace bottom gasket. Can not buy rings only, sold in set (piston / rings). Lapped and honed.
About 40 hours total with super detailed cleaning of everything. Had help re-assembling motor and getting motor back in w/ swing arm.
Total Parts, 2 pistons - Rings, CCT, Gaskets $890. Labor help 6hr. $200 = $1100. Valves clearances were good so we lucked there.

Now I got to contribute as a site supporter again and THANK YOU everyone for advise.
I tried to find a recycler to take it. Couldn't find then jumped on YAMAHA SUPER TENERE FORUM and was able to keep my bike ::015:: ::018::

 

[Thrasherg]

So did you not find out where that circular piece of metal came from?

Gary

 

[Zepfan]

Never found the other "half" :
Maybe I'll drop the pan and have a look. Now that I'm a ACE S10 mechanic . 8) : ::012::

 

[Checkswrecks]

Congratulations!!!

 

[OldRider]

I'm still wondering something, does anyone know of a reason not to use generation 2 pistons and rings in a generation 1 engine so you can buy just one set of rings at a time?

 

[Nikolajsen]

::012::

 

[Super08]

I bet it feels some good to accomplish this and have it back on the road.

 

[EricV]

I'm still wondering something, does anyone know of a reason not to use generation 2 pistons and rings in a generation 1 engine so you can buy just one set of rings at a time?

I don't know if there is a compelling reason either way, but it's been done at least a few times now. I recall there is a compression change, but how or if that really impacts anything is unknown. I do know that on a warranty claim, they will not put Gen II pistons in a Gen I motor unless you want to pay for it yourself. And no changes to the rods are required if you do this. The rings are unique to each Gen piston, so you either buy Gen I pistons that come with rings, or buy Gen II pistons and order Gen II rings to go with them.