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280z transmission tear down


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#1 fatfree69

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Posted 03 October 2012 - 08:13 PM

Attached File  DSC03169.jpg   335KB   172 downloads
Countershaft rear bearing damaged (ball bearings fell out).

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Pulling overdrive counter gear (and what's left of the countershaft rear bearing).

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Overdrive counter gear removed.

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Attached File  DSC03173.jpg   358.42KB   98 downloads
Reverse counter gear and spacer removed.

Attached File  DSC03176.jpg   330.17KB   93 downloads
Retaining pin removed from reverse/overdrive shift fork (bronze color piece).

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Attached File  DSC03174.jpg   336.28KB   82 downloads

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Attached File  DSC03178.jpg   317.34KB   95 downloads
All 3 fork rods removed.
Countershaft front bearing removed.

Attached File  DSC03179.jpg   298.34KB   99 downloads
Main drive gear removed. (Countershaft drive gear needs to be removed first. It is still attached in the picture because there was so much play from bad bearings that the main drive gear fell out while pulling the countershaft drive gear out).

Attached File  DSC03180.jpg   341.45KB   77 downloads
Countershaft drive gear removed. Baulk rings, synchronizer hub, and coupling sleeve, removed.

Attached File  DSC03181.jpg   340.45KB   66 downloads
3rd main gear removed.

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Countershaft removed.

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Speedometer drive gear removed.
Pulling overdrive main shaft bearing.
Bought 4 brackets (2 for each side), bolts and nuts to extend the arm of the gear/bearing puller tool.

Attached File  DSC03183.jpg   280.13KB   103 downloads
Overdrive main shaft bearing and mainshaft nut removed.

Attached File  DSC03184.jpg   301.17KB   73 downloads
Washer, roller bearings, and overdrive main gear removed.

Attached File  DSC03185.jpg   267.78KB   59 downloads
Overdrive gear bushing, reverse gear, and OD-reverse synchronizer hub removed.

Attached File  DSC03186.jpg   323.62KB   53 downloads
Mainshaft removed.

Attached File  DSC03187.jpg   263.24KB   51 downloads
Reverse idler gear removed.

Attached File  DSC03188.jpg   341.1KB   58 downloads
Reverse idler shaft and bearing retainer removed.

Attached File  DSC03195.jpg   280.05KB   57 downloads
Countershaft bearing and mainshaft bearing removed.

Attached File  DSC03198.jpg   375.65KB   97 downloads
Mainshaft.

Attached File  DSC03189.jpg   419.99KB   124 downloads

(Re-assemble in reverse order)



**All terms used are from the service manual pages below:
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Attached File  02.png   175.08KB   50 downloads

Edited by fatfree69, 04 October 2012 - 06:28 AM.


#2 RB26powered74zcar

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Posted 03 October 2012 - 09:21 PM

Excellent post! I think this is Sticky worthy...

.

 

 

 

 

 

RB26dettZ pics

 

th_April_2012006.jpg ®


#3 tamo3

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Posted 14 December 2012 - 02:36 PM

FS5W71B Assembly Video

 

http://youtu.be/EEeNxPwAJi0

 

http://youtu.be/1lKUHsYl8FY

 


Edited by tamo3, 14 December 2012 - 02:38 PM.


#4 fatfree69

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Posted 22 January 2013 - 07:53 PM

FS5W71B Assembly Video

 

http://youtu.be/EEeNxPwAJi0

 

http://youtu.be/1lKUHsYl8FY

 

Thanks for adding the video!  I wish I knew about them when I rebuilt my transmission.



#5 duragg

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Posted 28 January 2013 - 10:16 AM

Where did you end up ordering parts?
I rebuilt mine 2 years ago with drivetrain.com parts and the synchros are gone about 1000 miles later.

 

Just ordered new stuff from nissanpartzone which is supposedly OEM dealer parts.


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1973 S30 (Gutted & caged NASA ST3) 2252lbs (dry & vacant) / VQ35HR/ 4.375 CLSD R200 / GC-Koni doubles / 275 R7s / Safety is a priority.


#6 fatfree69

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Posted 16 September 2013 - 10:10 AM

Where did you end up ordering parts?
I rebuilt mine 2 years ago with drivetrain.com parts and the synchros are gone about 1000 miles later.

 

Just ordered new stuff from nissanpartzone which is supposedly OEM dealer parts.

 

Sorry for the late response, I didn't get a notification for some reason.

 

I got my parts from an eBay store, so I'm not sure what quality they are actually in.  I really hope my synchros don't have a short life span.






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