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General Category >> Rubber Side Down! >> Putting crankcase halves back together
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Message started by grim on 04/30/07 at 20:14:54

Title: Putting crankcase halves back together
Post by grim on 04/30/07 at 20:14:54

Any ideas or tips on how to get the two halves together smoothly? The manual says you should have no problems getting the halves to slide together.

I did tighten the 46mm nut that hold on the flywheel weight and this may be the culprit.

Basically the halves are together and the flywheel moves freely, BUT when I tighten the bolts that hold the halves together, the flywheel stops moving freely. Very strange.

Did anyone exerience the smooth crankcase assembly?

Did anyone have a difficult one?

Thanks guys/gals

Title: Re: Putting crankcase halves back together
Post by franch on 04/30/07 at 20:27:18

just jump right in why don't ya

.I thought i was something just doing the cam chain,
turns out i'm nothing compared to the crank case splitting you're up against.

I know, this isn't helpfull but it adds fill untill someone who knows what their doing replies.

best of luck

Title: Re: Putting crankcase halves back together
Post by justin_o_guy on 04/30/07 at 20:29:27

Did the crank get seperated? Is the distance across the web correct? Zuzuki manual, page 3-46 upper right ppicture. 70.0+ or - .1 mm.

Do you remember how it felt when you were at this point taking it apart?

I am strictly fumbling in the dark, I've never been here & I hope to never be,, But, good luck!

Title: Re: Putting crankcase halves back together
Post by Kropatchek on 05/01/07 at 03:21:53

Try tapping the crankshaft, balanceshaft and the gearshafts with a non-malet hammer as the SSM says. This will seat the bearings.

Title: Re: Putting crankcase halves back together
Post by justin_o_guy on 05/01/07 at 08:20:03

Krop, when I see a question like this I grab my manual, but I ooverlooked that. Where is it?

Title: Re: Putting crankcase halves back together
Post by Kropatchek on 05/01/07 at 14:48:33

justin_o_guy wrote:

Krop, when I see a question like this I grab my manual, but I ooverlooked that. Where is it?

In my SSM it's in the chapter Engine 3 Crankcase, page 3-48.
Quote:
If a large resistance is felt to rotation, try to free the shafts by tapping the driveshaft or countershaft with a plastic hammer
Unquote

Hope this helps.

After been working in aviation maintenance ( for 40+ years) , I read the manual cover-to-cover and try to remember where descriptions are located, not what the procedure is.
So I thumped through the SSM and found it.
No offence
Greetz

Title: Re: Putting crankcase halves back together
Post by justin_o_guy on 05/01/07 at 16:28:36

None taken, I asked wher was it. Aircraft maintenance would teach a guy to be thorough.