I just changed my own timing chain tensioners........HOW TO
#41
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It didnt cost me anything to repair the motor. Only all the cooling system parts. I was able to take heads and cams and chains etc from another vehicle that only had 8k on it. If you are doing the swap, wise to change tensioners while you have engine out. So much easier. Also once swapped and new motor into your car, you won't have to worry about it for along time.
On a side note, I just took a 2008 SV8 engine out on Friday. Had it out and disassembled in under 6 hours. Will post pics on a new thread.
On a side note, I just took a 2008 SV8 engine out on Friday. Had it out and disassembled in under 6 hours. Will post pics on a new thread.
#42
#43
#47
#48
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is it possible for you to provide me with all the parts number for the items below please, I would like to get this job done asap to my '00 VDP 79kmiles thanks
BTW, i forgot to mention the costs of this project
two new Mk4 alloy tensioners ( handed ) @ £49 each ( you can convert to $'s yourself at current rates
)
four new shorter tensioner bolts @ £0.96 each
full set of AJ27 cam cover / spark plug and bolt seals including the VVT solenoids @ £78 for the whole set
purchase of the tools came in at £250 , but i sold them on for no loss to the next needy Jag owner....
so a grand total of £179.84...........![Big Grin](https://www.jaguarforums.com/forum/images/smilies/biggrin.gif)
![Smile](https://www.jaguarforums.com/forum/images/smilies/smile.gif)
i have also installed a K&N filter in the standard induction box, plus a new set of spark plugs, new water pump ( new type ) , new thermostat and seal, new vacuum hose from the top of the cam box , flushed the oil system and put in a new filter and genuine jaguar Havoline 5W30 oil ,
well, i wasnt doing much at the time, lol
BB![Wink](https://www.jaguarforums.com/forum/images/smilies/wink.gif)
two new Mk4 alloy tensioners ( handed ) @ £49 each ( you can convert to $'s yourself at current rates
![Wink](https://www.jaguarforums.com/forum/images/smilies/wink.gif)
four new shorter tensioner bolts @ £0.96 each
full set of AJ27 cam cover / spark plug and bolt seals including the VVT solenoids @ £78 for the whole set
purchase of the tools came in at £250 , but i sold them on for no loss to the next needy Jag owner....
so a grand total of £179.84...........
![Big Grin](https://www.jaguarforums.com/forum/images/smilies/biggrin.gif)
![Smile](https://www.jaguarforums.com/forum/images/smilies/smile.gif)
i have also installed a K&N filter in the standard induction box, plus a new set of spark plugs, new water pump ( new type ) , new thermostat and seal, new vacuum hose from the top of the cam box , flushed the oil system and put in a new filter and genuine jaguar Havoline 5W30 oil ,
well, i wasnt doing much at the time, lol
BB
![Wink](https://www.jaguarforums.com/forum/images/smilies/wink.gif)
#49
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i had oil changed today, and noticed a knocking noise afterwards, sounds like passenger side, top on engine. knock sounds like a jack hammer, knocks faster when rev engine.
i parked it and wont drive it until i knwo for sure what it is. my mechanic is out of town for the summer vacation, i am in houston, tx
anyone here can fix this for me, i can work on older cars but not this fancy thing. all my tools are for older fords not jag.
any help here
tinakeeling@sbcglobal.net
i parked it and wont drive it until i knwo for sure what it is. my mechanic is out of town for the summer vacation, i am in houston, tx
anyone here can fix this for me, i can work on older cars but not this fancy thing. all my tools are for older fords not jag.
any help here
tinakeeling@sbcglobal.net
#50
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Hi,
I am considering doing this myself also. I am curious about someone's comment about removing the camshaft bearing caps and lifting the cam shaft up a bit to remove/replace the secondary chain tensioner.
Having never worked on a jag engine, I really don't know the dangers involved here but it seems to me that if the chains (primary and secondary) never leave the sprockets/camshafts then if the camshaft (the exhaust cam) does move then it is no big deal since everything else will move (keeping everything in time).
Also you could put witness marks on the cam sprockets/crank pulley to reposition them if something did happen.
I would really appreicate expert insight on this. Again, I really do not know the dangers here or maybe I am missing something.
I realize this not the most elegant way but it could save you $400 in tools. It makes a whole lot of sense to it by the book and invest in the tools if you work on Jags for living.
I am considering doing this myself also. I am curious about someone's comment about removing the camshaft bearing caps and lifting the cam shaft up a bit to remove/replace the secondary chain tensioner.
Having never worked on a jag engine, I really don't know the dangers involved here but it seems to me that if the chains (primary and secondary) never leave the sprockets/camshafts then if the camshaft (the exhaust cam) does move then it is no big deal since everything else will move (keeping everything in time).
Also you could put witness marks on the cam sprockets/crank pulley to reposition them if something did happen.
I would really appreicate expert insight on this. Again, I really do not know the dangers here or maybe I am missing something.
I realize this not the most elegant way but it could save you $400 in tools. It makes a whole lot of sense to it by the book and invest in the tools if you work on Jags for living.
#51
![Default](/forum/images/icons/icon1.gif)
i had oil changed today, and noticed a knocking noise afterwards, sounds like passenger side, top on engine. knock sounds like a jack hammer, knocks faster when rev engine.
i parked it and wont drive it until i knwo for sure what it is. my mechanic is out of town for the summer vacation, i am in houston, tx
anyone here can fix this for me, i can work on older cars but not this fancy thing. all my tools are for older fords not jag.
any help here
tinakeeling@sbcglobal.net
i parked it and wont drive it until i knwo for sure what it is. my mechanic is out of town for the summer vacation, i am in houston, tx
anyone here can fix this for me, i can work on older cars but not this fancy thing. all my tools are for older fords not jag.
any help here
tinakeeling@sbcglobal.net
#53
#55
#56
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No luck but I did find motorcars LTD in houston to have a kit for
$285.00 http://www.motorcarsltd.com/V8.TIMING.TOOLS.html
$285.00 http://www.motorcarsltd.com/V8.TIMING.TOOLS.html
#57
#58
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i just put new tensioners in and had to replace the secondary chain. when the tensioner failed the little plastic piece got stuck between the sproket and the chain so i had to remove the exhaust cams.. i have everything put back together but not sure on the timing. i havent started it yet and im scared too..i have seen in many pictures that the camshafts have flat spots near the sprokets and noticed that they are both laying the same way..is that exactly the way they should be????
#59
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Great job and only 8 hours. Not bad for a beginner.
Ernest, if you are taking the heads off that xjr - after doing you leakdown test of course, you should still lock down both sets of cams and lock the flywheel until chains are off.
Hope to see someone do a write up of the lower chains and tensioners soon LOL
Ernest, if you are taking the heads off that xjr - after doing you leakdown test of course, you should still lock down both sets of cams and lock the flywheel until chains are off.
Hope to see someone do a write up of the lower chains and tensioners soon LOL
I bought the 1998 Jag XJR about 3month ago it runs perfect til yesterday I nearly go in an accident because of engine stall.. I did web search found out this is knowing issue by the Jaguar.. My question is replacing the chain and tensioner will this solve the engine stall issue? and where can i buy the tooling to do this work? Please help..
Thanks,
Digi