240Z, 260Z, 280Z Performance / Technical Discussions related to performance motor enhancements, upgrades.

78 280z AT 5SP swap Clutch Bolts

Old 06-20-2012, 08:42 PM
  #1  
Registered User
Thread Starter
 
Turbo Biscuit's Avatar
 
Join Date: Mar 2012
Posts: 34
78 280z AT 5SP swap Clutch Bolts

Does anyone have the dimensions and thread spacing for flywheel and clutch plate bolts? My clutch kit didn't come with any. I'm assuming I can use the same AT flywheel bolts, but I don't have any clutch plate bolts and just want to make sure I get the rights ones. Thanks!
Turbo Biscuit is offline  
Old 06-27-2012, 05:17 PM
  #2  
Registered User
Thread Starter
 
Turbo Biscuit's Avatar
 
Join Date: Mar 2012
Posts: 34
For the pressure plate to flywheel I'm using M8 x 16mm 1.25 Pitch Grade 10.9 bolts.

I still don't know the dimensions of the flywheel to crankcase bolts for a manual. Anyone???
Turbo Biscuit is offline  
Old 06-28-2012, 08:58 AM
  #3  
The Good Twin
 
NismoPick's Avatar
 
Join Date: Aug 2005
Location: Wild Wild West, UTAH!
Posts: 20,616
Originally Posted by Turbo Biscuit View Post
flywheel to crankcase bolts
You mean crank shaft? Reuse the bolts from the torque converter flex plate. That's what I did.
NismoPick is offline  
Old 06-28-2012, 04:16 PM
  #4  
Registered User
Thread Starter
 
Turbo Biscuit's Avatar
 
Join Date: Mar 2012
Posts: 34
It doesn't bolt to the crankcase? Man I need to rethink this whole endevour!

I was under the impression from some other forums that you couldn't reuse the old bolts. Someone said they were too short. I'm guessing that's not the case then. Thanks for the input!
Turbo Biscuit is offline  
Old 07-08-2012, 10:53 AM
  #5  
Registered User
Thread Starter
 
Turbo Biscuit's Avatar
 
Join Date: Mar 2012
Posts: 34
Did the swap Thursday. The stock bolts fit, but if anyone is interested they are 25mm long, and 12mm in diameter (m12) grade 12 bolts with (I think) fine threads. There were no lock washers. I used blue threadlocker though.

Also I know it's listed elsewhere, but now it's listed again for all you Googlers. The manual transmission flange is twice as thick as the auto flange (40mm vs 20mm). The new bolts you will need to hold the tranny to the motor are M10 1.5 with three being 60mm long and one (the one on the side of the tranny in front of the driver) being 65mm long. I recommend 10.9 grade but I used 8.8 because that's all Fastenal had.
Turbo Biscuit is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
skittle
240Z-280ZXT S30-S130 Tech Tips
0
08-03-2010 06:08 PM
turbotim
300ZX (Z31) Forums
16
07-04-2010 07:18 PM
barrywood 24/7
280ZX (S130) Forums
6
07-13-2006 09:41 PM
webbster75
300ZX (Z31) Performance / Technical
0
07-14-2005 03:45 PM
jtmny1999
280ZX Performance / Technical
0
01-18-2004 09:04 PM


Thread Tools
Search this Thread
Quick Reply: 78 280z AT 5SP swap Clutch Bolts


Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.