Reviving A -99 Tdm 850

[dapleb]

Woulda loved to know what happened ear. Guess oil just have to imagine the most loikely outcome. [img]style_emoticons/<#EMO_DIR#>/smile.gif[/img]

[aircooled68]

[img]style_emoticons/<#EMO_DIR#>/wifgeni.gif[/img]

[dandywarhol]

He'll be up to his arse in snow - too cold to tinker.

[wicklamulla]

ya i'm interested to know what progress has bin made ?

[anda3243]

Sorry to ceep you waiting. I have some free time and will try to catch up with the uppdates during this week.

[dapleb]

Excellent. Glad you are still planning on going ahead with it. [img]style_emoticons/<#EMO_DIR#>/badgrock.gif[/img]

[anda3243]

So now i had an engine i could use. There were still some questions about the wiereing.

I am trying to fit the new motor in the frame.

First change the botom motor bracket. The TDM900 aluminum bracket on the photo. The TDM 850 steel bracket fits right on. It is a good idea to fit the starter motor to the engine while it is still loose.


First get the bottom engine mount bolt in place. Then jack the motor up till the top/rear engine bolt can be put trough. My frame was a little to narrow for the new engine at the top/rear engine mount. There are two bushings welded to the frame, the engine slides in between them, and then the bolt is passing trough the frame, bushings and the engine. The bushings on eather side of the frame were about 1 mm to tight together. I grinded them down so the engine coulod be fitted.


It loks doable. The right hand upper engine bracket does not fit. There is a casting of the cylinder block that is not used. But not in the same place as on the 850 engine. It is easier to make a new bracket than modify the old one.


The left hand will not fit either. There are no moutning points on the castings.


The aligning of the chain was one of the problems i know of. The 900 engine has 6 gears it is a little wider, and the front sprocket is moved further out.

I shortened the outgoing shaft. In the 900 it is used for speedometer, and i will not be using it.


The chain could be fitted. And it seemed like the chain could be aligned.




The C-C distance for the carbs seems to be the same. This makes it much easier.


The oil fil tube could be fitted.


The oil tank from 900 seemed to fit.

[dapleb]

Allorra work to do their. Very interesting to see what does and doesn't fit directly.

Not familiar with 9'er output shaft but is that the thread what holds the front sprock nut on that you have cut off?

[Matlock]

<!--quoteo(post=229070:date=Tue 27th Dec 2011, 04:06 PM:name=dapleb)-->QUOTE(dapleb @ Tue 27th Dec 2011, 04:06 PM) <{POST_SNAPBACK}><!--quotec-->Not familiar with 9'er output shaft but is that the thread what holds the front sprock nut on that you have cut off?<!--QuoteEnd--><!--QuoteEEnd-->
No, I seem to recall that there's just a smaller nut that holds on the speedo sensor that goes on the bit that got chopped orf. [img]style_emoticons/<#EMO_DIR#>/blink.gif[/img]

[markallinson]

Nice work, keep them coming [img]style_emoticons/<#EMO_DIR#>/smile.gif[/img]

[Studley Ramrod]

Thanks for the update and photos [img]style_emoticons/<#EMO_DIR#>/smile.gif[/img] Very interesting.

[img]style_emoticons/<#EMO_DIR#>/munching_out.gif[/img]

[TYREDNGRUMPEE]

<!--quoteo(post=229070:date=Tue 27th Dec 2011, 04:06 PM:name=dapleb)-->QUOTE(dapleb @ Tue 27th Dec 2011, 04:06 PM) <{POST_SNAPBACK}><!--quotec-->Allorra work to do their. Very interesting to see what does and doesn't fit directly.

Not familiar with 9'er output shaft but is that the thread what holds the front sprock nut on that you have cut off?<!--QuoteEnd--><!--QuoteEEnd-->

So how does that work cos I dunno [img]style_emoticons/<#EMO_DIR#>/dunno.gif[/img]

[wicklamulla]

<!--quoteo(post=229070:date=Tue 27th Dec 2011, 04:06 PM:name=dapleb)-->QUOTE(dapleb @ Tue 27th Dec 2011, 04:06 PM) <{POST_SNAPBACK}><!--quotec-->Allorra work to do their. Very interesting to see what does and doesn't fit directly.

Not familiar with 9'er output shaft but is that the thread what holds the front sprock nut on that you have cut off?<!--QuoteEnd--><!--QuoteEEnd-->



I tink the front sprocket retaining threads are behind the cutting disc in the piccy above, so no worries as the bit he's grinding off isn't needed. Lookin' @ that angle grinder makes me tink Anda an i are long lost brudders [img]style_emoticons/<#EMO_DIR#>/excl.gif[/img]

be interesting to see how the carbs and electrics/cdi work out. I'm loving this thread.

This post was last modified: 27-12-2011, 07:37 PM by wicklamulla.

[anda3243]

<!--quoteo(post=229086:date=Tue 27th Dec 2011, 08:37 PM:name=wicklamulla)-->QUOTE(wicklamulla @ Tue 27th Dec 2011, 08:37 PM) <{POST_SNAPBACK}><!--quotec-->I tink the front sprocket retaining threads are behind the cutting disc in the piccy above, so no worries as the bit he's grinding off isn't needed. Lookin' @ that angle grinder makes me tink Anda an i are long lost brudders [img]style_emoticons/<#EMO_DIR#>/excl.gif[/img]

be interesting to see how the carbs and electrics/cdi work out. I'm loving this thread.<!--QuoteEnd--><!--QuoteEEnd-->


It will not be the last time the angle grinder is used. [img]style_emoticons/<#EMO_DIR#>/laugh.gif[/img]

Here is how the front sprocket looks when complete. The piece I grinded away is for the speed sensor. The thread for front sprocket is on the other side of the grinding wheel.

[dapleb]

So whats next...left and right brackets?

[LewisBlackburn]

Looking Darn good [img]style_emoticons/<#EMO_DIR#>/biggrin.gif[/img]

[anda3243]

<!--sizeo:4--><!--/sizeo-->The new engine brackets<!--sizec--><!--/sizec-->

When the engine was in place, templates for the new engine brackets were made. Great care should be taken when making templates. I was a bit careless, which resulted in more work later.

The casting on the 900 engine is prepeared with a mounting "ear", but it is not drilled or threaded.


For the right side bracket i moved one of the mounting points on the frame. I used the same mounting "ear" on the front of the cylinders that is used in the 900. Sorry for the shitty pictures,

Just pased the point of no return


Inside of the frame


The new location of the mounting. I will later realize that the coolant hose from cylinders to the radiator pases there.


A friend had acces to a water cutting machine and he helped to cut the brackets from 5 mm construction steel. He cut both engine brackets and a 5 mm spacer for the rear wheel.Unfortionaly my templates were not that accurate.




Made a new template


Grinded the bracket to correct shape


Then prepared the engine castingsgrinding the surface of it, drilling a hole, and threading it.


M12 x 1,25 same pitch as on the 850 engine.


Grinded some more on the bracket


I used the bolt from the 850 engine and fastened a bushing. The bracket was grinded until ut fittet with the bushing and the three other holes.


Then weld them together.


<!--quoteo(post=229213:date=Fri 30th Dec 2011, 12:16 AM:name=dapleb)-->QUOTE(dapleb @ Fri 30th Dec 2011, 12:16 AM) <{POST_SNAPBACK}><!--quotec-->So whats next...left and right brackets?<!--QuoteEnd--><!--QuoteEEnd-->

You guessed right [img]style_emoticons/<#EMO_DIR#>/laugh.gif[/img]

This post was last modified: 29-12-2011, 11:58 PM by anda3243.

[dapleb]

<!--quoteo(post=229218:date=Thu 29th Dec 2011, 11:55 PM:name=anda3243)-->QUOTE(anda3243 @ Thu 29th Dec 2011, 11:55 PM) <{POST_SNAPBACK}><!--quotec-->Just pased the point of no return<!--QuoteEnd--><!--QuoteEEnd-->

Scarey stuff moving the mounting points, glad it worked out ok.

[anda3243]

Welded the bushing properly, and welded on some flanges to make it stronger.




The flanges were grinded down somewhat later


The left side bracket

I bought a bolt that fitted. M12 x 1,25
I am in need of a better looking bolt,


The bolt was fittet with a bushing, same as the other side. And the bracket grinded and fitted.


Then welding it to the bushing and fitting the engine mount. The engine is hold in place by the rear mounting points. Note that the bushing takes up some "axial" play. I dont need to bend the bracket to make it fit properly.


Welding the mount to the frame


Adding reinforcement flanges, and welding the bushing properly.




Grinding down the flanges and cleaning both brackets.


Then painting. First ground, then silver.


Also ground paint on the welded mount on the frame. This was also spray painted silver later.

[margus014]

Great progress. Reminds me of my last winter project: Fiting a Yamaha SZR 660 engine on a Polaris Explorer 400 ATV, wich turned out extreamely well.