XJ XJ8 / XJR ( X308 ) 1997 - 2003

Cam shaft woes :(

Thread Tools
 
Search this Thread
 
  #41  
Old 04-26-2012, 06:08 AM
batroute's Avatar
Senior Member
Join Date: Feb 2012
Location: Fort Myers Florida/Lichfield UK
Posts: 573
Received 139 Likes on 117 Posts
Smile

Originally Posted by Vector
That is what I did. Rotate the crank bolt with a 24 mm socket clockwise until all the lobes are clear. Do this for one side, finish the tensioner install on that side, then do it for the other side.
Vector

Thanks - out of interest does that mean you can actually get all of the valve spring pressure off the cam at one point in its rotation?
 
  #42  
Old 04-26-2012, 07:16 AM
Join Date: Apr 2009
Location: Central Florida
Posts: 1,683
Received 448 Likes on 333 Posts
Default

Originally Posted by plums
Some people bump the engine with the starter.
I'm pretty sure that rotating with a socket via the crank is easier or at least more accurate than "bumping" the starter. I'm sure you can do it that way, but I was able to be satisfied that I had all of the pressure off the cams by carefully rotating via the crank. I even went around a couple of times to make sure it was exactly where I wanted it to be. I could get it exactly where it needed to be this way.

It was not difficult to reach with a 24mm socket and 3" extension. Removing the spark plugs made it very easy to turn. Clockwise only!

YMMV.
Vector
 
  #43  
Old 04-27-2012, 01:04 AM
plums's Avatar
Veteran Member
Join Date: Feb 2011
Location: on-the-edge
Posts: 9,733
Received 2,183 Likes on 1,623 Posts
Default

Originally Posted by Vector
I'm pretty sure that rotating with a socket via the crank is easier or at least more accurate than "bumping" the starter.
It probably is.

But some people have a fine enough touch that they can get it in a few clicks
 
  #44  
Old 04-29-2012, 02:36 AM
JagScott's Avatar
Senior Member
Thread Starter
Join Date: Jul 2010
Location: Boise Idaho
Posts: 181
Received 11 Likes on 9 Posts
Default

Turning the crank is easy enough. I would do it manually if I needed to do it again.
 
  #45  
Old 04-30-2012, 07:24 PM
korvetkeith's Avatar
Member
Join Date: Mar 2012
Location: Peoria, IL
Posts: 41
Received 1 Like on 1 Post
Default

Originally Posted by JagScott
It occurred when I was reinstalling/re bolting the camshaft after replacing the secondary tensioners. I tried my best to even out the tension on it when bolting it back in. It was in an awkward position based on its timing, which made it difficult. The other cam did not have a problem going in at all. I heard a large bang and then saw a horrific sight.
Damn dude, you're supposed to spin the motor over until most of the springs have no or little compression. I just did it a couple weeks ago.

I see from tousley ford, a cam for a lincoln LS is only $106. Not sure if they're the same profile though.
 
  #46  
Old 05-02-2012, 12:57 PM
JagScott's Avatar
Senior Member
Thread Starter
Join Date: Jul 2010
Location: Boise Idaho
Posts: 181
Received 11 Likes on 9 Posts
Default

She has been running since late October. One of our awesome members, sparkenzap, was extremely generous and gave me a camshaft from an XJR engine. Perfect fit!

I ended up doing the entire timing system at that point (might as well). https://www.jaguarforums.com/forum/x...e-alive-62597/
 
  #47  
Old 05-02-2012, 03:20 PM
mechelement's Avatar
Senior Member
Join Date: May 2012
Location: Boise, ID
Posts: 184
Received 18 Likes on 11 Posts
Default

Reading this thread has increased my awareness of potential issues during the timing tensioner mod. I'm not sure I understand all of it, but, great thread.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
oldjaglover
XK8 / XKR ( X100 )
16
04-01-2020 05:04 PM
hoodun
XJS ( X27 )
57
05-15-2019 09:31 PM
millertic
PRIVATE For Sale / Trade or Buy Classifieds
0
09-30-2015 08:11 PM

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


Quick Reply: Cam shaft woes :(



All times are GMT -5. The time now is 02:02 AM.