Go Back  Jaguar Forums - Jaguar Enthusiasts Forum > Jaguar Models ( Classics ) > XJS ( X27 )
Reload this Page >

Marelli Distributor/Rotor (seeking clarification)

XJS ( X27 ) 1975 - 1996 3.6 4.0 5.3 6.0

Marelli Distributor/Rotor (seeking clarification)

 
  #1  
Old 05-02-2019, 07:16 PM
Junior Member
Thread Starter
Join Date: Feb 2019
Posts: 14
Likes: 0
Received 4 Likes on 3 Posts
Default Marelli Distributor/Rotor (seeking clarification)

Hello all,

I got myself all wrapped around the axle, thinking my rotor should have 11degrees of play, but it won't budge.

Maybe it's ignorant, but I am seeking confirmation that my rotor does not have the centerfugal mechanism, and I should experience exactly what I have.

(mainly, that zero play is normal, and not indication of my advance mechanism having been frozen...)

thank you for anyone who cares to respond on this. Best Regards.

My vehicle is a 89 and 100% has Marelli Ignition system.
 
  #2  
Old 05-02-2019, 07:52 PM
Join Date: Feb 2010
Location: Adelaide Stralia
Posts: 19,423
Received 5,742 Likes on 4,121 Posts
Default

Marelii NO GOT stuff that moves inside the distributor, like the Lucas unit.

It simply "distributes" the spark, that's all.
 
The following users liked this post:
orangeblossom (05-03-2019)
  #3  
Old 05-02-2019, 11:25 PM
Daim's Avatar
Veteran Member
Join Date: May 2014
Location: Bremen, Germany
Posts: 5,775
Received 2,055 Likes on 1,517 Posts
Default

Marellis have long contact areas on the rotor which removes the need for a mechanical advance/retard. The advance/retard is done via ICU.

So no, as Grant said, the dozzy is hollow and empty with only a rotor and nothing else.
 
The following 3 users liked this post by Daim:
Grant Francis (05-03-2019), Greg in France (05-03-2019), orangeblossom (05-03-2019)
  #4  
Old 05-03-2019, 11:30 AM
Junior Member
Thread Starter
Join Date: Feb 2019
Posts: 14
Likes: 0
Received 4 Likes on 3 Posts
Default

I had called my trump card friend ( seasoned exotic's mechanic) and got him all stirred up

Then I re read the help book passage and first sentence say something like "early HE or Lucas Ignition" I just flew past that and assumed worst case scenario...

It was another passage that said something to the effect "marelli distributors do not have to handle the advance matters and they are handled by ECU... made me reread everything.

Hooray! For once I caught a break and can continue with the process of getting everything cleaned up, ready to button back together.
 
The following users liked this post:
Grant Francis (05-04-2019)
  #5  
Old 05-04-2019, 04:23 AM
Daim's Avatar
Veteran Member
Join Date: May 2014
Location: Bremen, Germany
Posts: 5,775
Received 2,055 Likes on 1,517 Posts
Default

In my opinion(!) the Marelli ignition is probably the best you can get for a V12 engine before you go distributorless. No parts which can rust tight or seize. Sure, there have been a few fires but they are due to lack of service (old parts, not properly serviced, etc.). The Lucas relies on mechanical advancing etc. The Marelli is all digital and therefore hasslefree when serviced properly. Aet zp, replace cap and rotor regularly, enjoy.
 
The following 2 users liked this post by Daim:
Mac Allan (05-04-2019), orangeblossom (05-04-2019)
  #6  
Old 05-04-2019, 11:56 AM
Junior Member
Thread Starter
Join Date: Feb 2019
Posts: 14
Likes: 0
Received 4 Likes on 3 Posts
Default

Certainly pleased I did not rush forth like I did so many times in younger daze and break something unrelated to what I am working on.

Today I got my injector cleaning rig ( and process) sorted and just cleaned out the first one. Sitting all those years certainly did leave a mess... I just flush until clear, backflush, flush once more. This information age is just wonderful !

The spread of the spray pattern seems rather narrow so I will have ample opportunities to see how they all group. Better be sure to mark them well!

Get a break in the weather and I may start putting oil in cylinders and making certain everything is turning smoothly by hand/crank, get all that out, and then oil the top end a little.



I purposefully left some room when I changed oil l and filter last week. Specifically what am I trying to get oil on when I turn crank?

Once all that is done, I will turn crank pulley with substantial drill.
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
dstarr3
XJS ( X27 )
4
09-10-2017 11:11 PM
exjayess
XJS ( X27 )
10
06-20-2016 01:47 AM
orangeblossom
XJS ( X27 )
33
09-27-2015 06:13 PM
bullittandy
XJS ( X27 )
4
03-24-2015 04:12 AM
inertian
PRIVATE For Sale / Trade or Buy Classifieds
0
01-26-2013 01:18 PM

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

Thread Tools
Search this Thread
Quick Reply: Marelli Distributor/Rotor (seeking clarification)


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: