XJ XJ8 / XJR ( X308 ) 1997 - 2003

2 engine problem questions if I may.....

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Old 09-21-2011, 05:17 PM
John Fox's Avatar
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Default 2 engine problem questions if I may.....

I havent posted much hear since joining but I do pop in and check every so often, just been really busy or I would post more. Here are my 2 questions about a couple cars for sale locally im interested in. The 99 more so because its prettier than my current 99 I am driving, the second because I want a XJR at some point.

First is a 99 XJ8, runs fine, doesnt overheat but upon stopping all the antifreeze backs up through the overflow tank. Got 137K on the car, what would be the worse cause of this ? Female owned and thats all she will tell me.

Second question, 2000 XJR, 118K, broken tensioners.... so the motor doesnt run, I am looking to buy this car as its perfect otherwise and I would replace my 99 with it since its an XJR. I do alot of my own mechanical work so can I fix this myself, MAYBE, or when they break does it ruin the engine, especially a supercharged one as this is.

Thanks again guys....... hope everyone is well and enjoying there kittys.
 
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Old 09-21-2011, 05:45 PM
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The coolant problem could be as simple as crossed tank hoses. Look for recent archives, with pictures concerning "crossed lines".
As to the broken tensioners- You are looking at a range of just the tensioners (HIGHLY unlikly), to pulling the head to replace bent valves to pulling the engine to fix knackered piston. Or buy a used motor and drop it in.
Good luck, Once you have the XJR, the Xj8 be quite the same.
 
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Old 09-21-2011, 09:04 PM
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You *may* want to see if the owner will let you pull off the valve covers so you can see if the cams stopped in a perfect spot... The best option would be to remove the exhaust cam(s) on the side(s) that have the broken chain(s), put a little oil in the cylinders and see if you have compression.

Compression=WOOHOOOOO you got a steal!

No Compression= AWW RATS! Head must come off...which requires pulley, timing cover etc etc removal.. "while your at it" do the rails and lower tensioners...

You will LOVE the XJR. I specifically looked for (and found)one with a broken timing chain. Towed it home, replaced the tensioners (which I had bought months prior in advance in anticipation of my future purchase) (and one chain) then voila- runs like a champ. I should note that while looking for the right car I purchased an XJR that "might have overheated" and when I went under to find out why it wouldn't turn over when I got it home it turned out to have a nice hole in the pan and much loose connecting rod parts. Caveat Emptor.
 
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Old 09-22-2011, 04:17 AM
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Hi John, the one thing that stands out in your post is you do your own work, first off that's a solid basis.

Prices you guys pay for a good (steel liner) engine can be 2-3k - there's an engine and trans on here for sale by a member that's done something like 12k miles for 3k! My suggestion, buy the R, buy the engine and box and drop it in!

Your bargaining power on a car that has a blown engine is strong, not many people have the gumption to tackle it, but your lucky as a few members are doing the engine swaps on here at the moment, with pictures and tips.

Go in low and hard, you never know, you might just have R power shortly!
Good luck.
 
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Old 09-22-2011, 09:37 AM
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Thanks guys, funny thing is the guy bought the car broken and then found out, as he says, it will cost 3600 to replace the engine but thats with a standard AJ26.... not a 26A or 27 which I believe is a true supercharged engine.

He already gave me his "lowest" price but even given the great condition the car is , the miles on it combined with his price and repair cost would put me right at retail for the car. I dont pay retail for anything and especially not a Jaguar in Arizona, there are too many available and to many that need "something" so they can be bought right.

Thanks for the info and I will let ya know what happens.d
 
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