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  #1  
Old 09-26-2011, 08:52 PM
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Jaguar engine question

Neighbor has a 2000 Jaguar xk-8 with 50k miles on it. Yesterday it came home on a flatbed and I went over to talk to her. She had tried to start it in a Target parking lot and it made funny noises and wouldn't run right so she had it towed home. She started it while I was there and it ran but lacked power and wouldn't run right. Today she had it towed to a shop and they told her the right side timing chain broke. No compression in cylinder 1. She's wondering what to do with it. Mechanic figures bent valves but doesn't know if the pistons were harmed. Should she have the head pulled ($1500 labor) to check the pistons? Should she look for a used engine and have the engine replaced? Should she sell it with a bad engine? Any advice out there? Seems odd to me that the timing chain would break with that low a miles on the car. Anyone know if chains are a problem on these cars. She says its a Ford engine.

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  #2  
Old 09-26-2011, 09:15 PM
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Here's the answer as to the cause of the problem:

Jaguar V8 Secondary Tensioners - Preventive Replacement
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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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  #3  
Old 09-26-2011, 09:23 PM
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Damn Kerry you beat me to it. Well known problem with those engines.
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  #4  
Old 09-26-2011, 09:29 PM
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Anyone interested in buying a nice Jag that needs a right side head replacement?
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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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  #5  
Old 09-26-2011, 09:36 PM
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I'll give $200 for it.
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  #6  
Old 09-26-2011, 09:40 PM
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For $200 it would move from their side of the street to mine.
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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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  #7  
Old 09-26-2011, 09:48 PM
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Stella!
 
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Well, it sure ain't worth Jack now. $200 is a good deal for an 11 year old Jag.
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  #8  
Old 09-26-2011, 09:59 PM
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Had an XJR and replaced the tensioners as a preventative measure.

My friend Bob bought an XJ8 with the same issue and was able to bring it back to life without pulling the head. The timing chain broke but it did not bend the valve. Are we sure cylinder 1 was reading zero or was it just low. These nikisil sleeved engines can have low compression numbers cold.

Bob buys fixers like this all the time and pays decent money for them. I'm guessing it would be worth about 10k running and driving perfectly. 2-4k is what I guess it would bring salvage. Amateurs on the higher end, pros on the low end.

copart will give her a bid over the phone, and that would be the starting point. Though I'm reasonably certain Bob would give more.

If this didn't happen to her the transmission would probably have gone soon as well. The XJ8s got a very weak tranny. XJRs got the 722 Mercedes tranny. By 2003 the tensioner issue was resolved.
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  #9  
Old 09-26-2011, 10:08 PM
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She told me the mechanic said no compression. They ran the engine after the problem appeared so I'm guessing the valves are bent. If your friend Bob is interested in it, pm me. They're disgusted with it and might want to just sell it as is. I could get him pictures if he wants.
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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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  #10  
Old 09-26-2011, 10:29 PM
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Also, Ford used the engine is some cars, but that motor is all Jaaaaaag.
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1985 500SL Euro w/ AMG bits 130k
1984 300SD Turbodiesel 192k
1980 240D Stick China 188k
2001 CLK55 AMG 101k
2007 S600 Biturbo 149k Overheated Project, IT'S ALIVE!!!
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  #11  
Old 09-27-2011, 04:03 AM
t walgamuth's Avatar
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I seem to remember it is ford based....castings only perhaps but I suspect many of the acillaries would be ford as well.....not that there is anything wrong with that.
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..I also have a 427 Cobra replica with an aluminum chassis.
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  #12  
Old 09-27-2011, 11:06 AM
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That tenshioner problem is almost as bad as the one on the M116 380's. Later models had redesigned tensioners.
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  #13  
Old 09-27-2011, 07:41 PM
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Yeah it happened to my Grandmothers wonderful pile of an XJ8, I think it was like $3k to fix.

Happened exactly a year after the crappy ZF gear box gave up the ghost.

I'd put a long block in it, the 2000 and earlier engines tend to lose compression eventually. Not worth doing the heads on one IMHO.
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  #14  
Old 09-27-2011, 11:12 PM
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For the dealer to go through that engine and replace what is mentioned in the link I bet you are looking at $5k. The question is, is the car worth it. Sell it for $1k and count your self lucky.
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  #15  
Old 09-28-2011, 05:43 AM
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I wonder if it is possible to swap in a mUstang motor? In todays world with the computers controlling everything it might not work. OTOH some of that stuff might be the same so a bolt in swap might work.

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..I also have a 427 Cobra replica with an aluminum chassis.
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