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72clubman
 Post subject: Gearbox
PostPosted: Sat May 09, 2009 6:35 pm 
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848cc
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i have just rebuilt my first gearbox all new bearings, new layshaft, syncro rings where within tolerance etc.
i can select all gears ok with my rod change shifter hooked up.

Now is there a way before i connect this to my new engine to tell if its going to work ok?
i dont really want to go on my first drive with a fresh 1275 engine and not be able to select gears, or damage the engine.

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Tombo
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PostPosted: Sat May 09, 2009 7:22 pm 
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Dry fit the geatbox to the back flywheel cover with the drop gear in place (and the gasket) to make sure it has the right clearance and all turns.

If it selects all gears out of the car, then there should be no reason why it won't when fitted. :wink:

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John Smidt
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PostPosted: Sat May 09, 2009 7:29 pm 
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Tombo wrote:
Dry fit the geatbox to the back flywheel cover with the drop gear in place (and the gasket) to make sure it has the right clearance and all turns.

:


Very Good Advice! ( Drop gear AKA idler gear )
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drmini in aust
 Post subject:
PostPosted: Sat May 09, 2009 7:41 pm 
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John Smidt wrote:
Tombo wrote:
Dry fit the geatbox to the back flywheel cover with the drop gear in place (and the gasket) to make sure it has the right clearance and all turns.

:


Very Good Advice! ( Drop gear AKA idler gear )


If it's too tight or loose, be aware that flywheel housing gasket thicknesses vary these days, depending who you buy `em from.
Once upon a time (when all parts were genuine) they were all the same... not now.

Hint: Put the box together with the same gasket you tested it with....
:wink:

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72clubman
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PostPosted: Sat May 09, 2009 8:22 pm 
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Good idea I tested it without side cover and idler gear
I don't need engine and flywheel on do I ?

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BALLISTIC
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PostPosted: Sat May 09, 2009 8:39 pm 
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72clubman wrote:
Good idea I tested it without side cover and idler gear
I don't need engine and flywheel on do I ?


No you dont need to, but as tombo said best you get the idler clearance right before you fit the g/box to the engine. Do all the bolts and nuts up as you would when fitting it to the engine for the final time so that you get the right clearance on the idler gear.
Have you fitted the outrigger bearing to the 1st motion shaft and fitted the outter race that came with the outrigger bearing into the flywheel housing?

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John Smidt
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PostPosted: Sat May 09, 2009 8:40 pm 
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72clubman wrote:
Good idea I tested it without side cover and idler gear
I don't need engine and flywheel on do I ?

No, But make sure you do what doc said and use the same gasket when you are fitting it to the Engine
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