XJ6 & XJ12 Series I, II & III 1968-1992

Manually turning over a V12

 
  #1  
Old 12-07-2011, 09:00 PM
Junior Member
Thread Starter
Join Date: Oct 2011
Location: Fraser Coast, Australia
Posts: 13
Likes: 0
Received 0 Likes on 0 Posts
Default Manually turning over a V12

Hi All

This may sound like an obvious question to many but it's not something I've had to do to date!

What is the best way of manually turning over a V12 (circa 1989, carburetor)? I am assuming it's a case of using a wrench on the crankshaft but would appreciate any do's / dont's / gotcha's.

Also, what size socket is required?

Thanks
 
  #2  
Old 12-08-2011, 04:58 AM
Join Date: Feb 2010
Location: Adelaide Stralia
Posts: 19,671
Received 5,838 Likes on 4,183 Posts
Default

32mm rings a bell, been a looooooong time since I needed to do that.

DO NOT rotate the engine BACKWARDS (anti-clockwise). Timing chain tensioner damage (HUGE $$$$) may occur. Note I said MAY, as some have done it and no snapping sound of the plastic tensioner, I have NEVER been so lucky. So if timing it this way, and you go past your mark, dont be lazy, GO ROUND AGAIN, its only 12 cylinders.

Other than that, not rocket science.
 
  #3  
Old 12-08-2011, 06:47 PM
Junior Member
Thread Starter
Join Date: Oct 2011
Location: Fraser Coast, Australia
Posts: 13
Likes: 0
Received 0 Likes on 0 Posts
Default

Again, thanks Grant.

Do they turn easy - I imagine it taking a fair bit of effort for an engine that size?

Cheers
 
  #4  
Old 12-09-2011, 02:00 AM
Join Date: Feb 2010
Location: Adelaide Stralia
Posts: 19,671
Received 5,838 Likes on 4,183 Posts
Default

NO.

My wife used to turn any of ours whilst I watched the timing marks from down under, and no effort at all. Our HE's are all 12.5:1, so a bit of resistance as comp comes up, but we use a 24" breaker bar, and dont rush it, and as I said NO issues.

Couple of stubbies for inner lubrication makes it sooooo easy.
 
  #5  
Old 12-09-2011, 10:20 PM
Junior Member
Thread Starter
Join Date: Oct 2011
Location: Fraser Coast, Australia
Posts: 13
Likes: 0
Received 0 Likes on 0 Posts
Default

Hmm, hadn't thought about the stubbie option. Obviously an essential piece of equipment for this type of work!

Cheers
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
aholbro1
XJ XJ6 / XJR6 ( X300 )
6
05-08-2019 09:20 AM
Doug
XJS ( X27 )
55
02-27-2019 01:31 AM
Sambo21
XK8 / XKR ( X100 )
10
11-19-2015 03:55 PM
jagent
Australia - Victoria / Tasmania
2
09-07-2015 05:00 PM
1100me
XJS ( X27 )
2
09-07-2015 06:26 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread
Quick Reply: Manually turning over a V12


Contact Us - 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.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: