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A Series Crownwheel And Pinion In An A+ Box?


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#1 floormanager

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Posted 11 August 2019 - 08:06 AM

Hello,

 

I am wondering if a A series pinion crownwheel set will fit on an A+ mainshaft?  About to offer it to a friend but do not know if it will fit.

 

Thanks,

Paul



#2 Ethel

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Posted 11 August 2019 - 08:25 AM

Pretty sure it will, but by all means wait for a second opinion from someone that's actually done it.



#3 floormanager

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Posted 11 August 2019 - 08:42 AM

Cheers.  Can't get the mainshaft nut undone at the moment.  And I am on the heavy side too!!



#4 Moke Spider

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Posted 11 August 2019 - 08:50 AM

As pairs yes, they interchange.



#5 DeadSquare

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Posted 11 August 2019 - 09:26 AM

Cheers.  Can't get the mainshaft nut undone at the moment.  And I am on the heavy side too!!

 

Have you got a big break-away torque wrench ?

 

If you use one that you can knock the square drive through, screw it up to its max and use it in reverse;  as it breaks away, it acts like an impulse wrench.



#6 floormanager

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Posted 11 August 2019 - 10:48 AM

Brilliant thanks Moke and Deadsquare. Glad an A series fits. I'll give the torque wrench a go. My breaker bar just bends

Edited by floormanager, 11 August 2019 - 10:49 AM.


#7 floormanager

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Posted 11 August 2019 - 10:49 AM

Moke damn predictive text

#8 carbon

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Posted 11 August 2019 - 04:47 PM

Brilliant thanks Moke and Deadsquare. Glad an A series fits. I'll give the torque wrench a go. My breaker bar just bends

Just checking, which gears are you locking up? Should be 1 and 4.

 

Rattle guns are also good for undoing very tight nuts.



#9 Rorf

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Posted 11 August 2019 - 04:56 PM

This is how I do it:

Attached Files



#10 floormanager

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Posted 11 August 2019 - 05:35 PM

Holy moly. I put a mini front wheel on it but all I did was lift the front wheel. Does the owner of the Merc mind??

#11 floormanager

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Posted 11 August 2019 - 05:36 PM

Yes Carbon locking gears 1 and 4 thanks.

#12 Minigman

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Posted 11 August 2019 - 05:40 PM

They will go in but make sure both are either A+ or pre A. You can’t mix them as you’ll not get the diff cover back on.

#13 floormanager

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Posted 11 August 2019 - 06:39 PM

They will go in but make sure both are either A+ or pre A. You can’t mix them as you’ll not get the diff cover back on.

Thanks for the advice.  There's a 3.44 A+ on there at the moment but my mate wants to do rallying and his mates are telling him 3.4 is too high.  I have an A series 3.6 crownwheel and pinion but until I get the main nut off I cannot try it.  Need a big, heavy german car to sit on it!

Paul



#14 Minigman

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Posted 11 August 2019 - 06:41 PM


They will go in but make sure both are either A+ or pre A. You can’t mix them as you’ll not get the diff cover back on.

Thanks for the advice. There's a 3.44 A+ on there at the moment but my mate wants to do rallying and his mates are telling him 3.4 is too high. I have an A series 3.6 crownwheel and pinion but until I get the main nut off I cannot try it. Need a big, heavy german car to sit on it!
Paul

If it’s a rally specific car then 3.4 is too high. Cooperman will put you straight, but I’d be at 3.76 or even lower, 4.1 possibly.

#15 timmy850

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Posted 11 August 2019 - 11:33 PM

I just used a long piece of bar, and a bolt through the gearbox case. Jack handle extension on the socket on the pinion nut and it comes away pretty easily
23435326199_02f96a67d9_b.jpg

Edited by timmy850, 11 August 2019 - 11:33 PM.





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