i was finally able to confirm with the previous owner that the timing chain tensionser was never replaced (which explains the cold start noise) on my 98 xk8. basically im looking for a place i can buy the metal tensioners and/or a part number to see if my local part shop can get me some a.s.a.p.

thanks in advance
Anthony

 

(Thanks to WhiteXKR for finding and posting this information originally, which I will now pass on to Mr. Dead Anthony)


The best thing to do is buy the Ford equivalent tensioners, which are identical to the Jag tensioners in all aspects except the price. The same tensioners were used in a Lincoln engine. Here are your FORD part numbers:

Ford PN 2W9Z6K254BA Right Secondary metal bodied Tensioner (1 required)

Ford PN 2W9Z6K254CA Left Secondary metal bodied Tensioner (1 required)

Ford PN W500301S300 Bolt (4 required - YOU MUST USE THESE NEW, SLIGHTLY SHORTER BOLTS)

Also at WhiteXKR's suggestion, I bought my parts at www.sunroadfordparts.com. Great pricing, quick delivery.

My advice is to get this work done NOW. Don't wait. You could lose your engine any day now, if you've got the noise at startup.

 

thanks alot coupe. ive had this noise for about 6 months now and thank god nothing bad has happened yet but i already started pulling off the valve covers so this way when they come in i can throw them on. i really appreciate the help though

 

You should probably consider replacing those cam cover gaskets as well, including the o-rings around the spark plugs. Sounds like your cam covers haven't been off much since 1997...replacing the gaskets while the covers are already off is a smart move.

 

btw i believe that number is no longer in service. it only rings

 

It's a busy place...just place your order over the website. That's what I did. Within a few hours, I got an e-mail asking if I was sure about the part fitting my car...as soon as I replied in the affirmative, they shipped.

As a second option, you could also walk into any Ford dealership parts department.

 

oh i am. theyre really old so thats going on as well

 

Be sure to order the correct Gasket Set. The 97-98 XKs use a AJ26 Engine. Later years (99-02) use a AJ27 Engine. The Cam Cover Gaskets are NOT the same.

The Gaskets used on the Thunderbird and Lincoln LS are the Later (AJ27) Design.

 

Tousley Ford is a big internet seller @ cost + 10%. It's as good as it gets.

Ford PN 2W9Z6K254BA Right Secondary metal bodied Tensioner (1 required)
Ford PN 2W9Z6K254CA Left Secondary metal bodied Tensioner (1 required)
Ford PN W500301S300 Bolt (4 required)

You can get a FelPro gasket kit from RockAuto.com that also includes the spark plug gaskets for a cheap price. A 5% discount PIN can usually be found online. Sorry I don't have the FelPro part # for the A26 engine.

 

Sorry, FelPro does not make a gasket set for the AJ26 engine.

'97 - 98 XK8

'98 - 99 XKR

 

thank you all for the help! i just got off the valve cover on the passenger side and waiting for my local ford dealer to call me back with a price. im a car dealer so i can get things at a discount but i may just buy it off of sunroad ford. as far as the gasket i may just boy it off of a local car part place we use. if they send me the wrong part hell replace it with no questions asked

 

I have a 2001 XK8, 4.0 liter AJ27 engine. Are the Ford tensioner numbers above the same for my car? If not, does anyone have them? Thanks.

 

Yes, those numbers apply to your engine.

 

Thanks so much. I failed to ask if anyone knows the P/N or Ford model and year that used the same gaskets as the AJ27.

 

The Gaskets used on the Thunderbird and Lincoln LS are the AJ27 Design.

 

I.m assuming that these part #'s are good for the 99 xk8 as well.

 

Yes, they are. Jaguar changed to the AJ27 engine in 1999 except for the XKR which switched to the AJ27 in 2000.

The Tensioners and mounting bolts service the AJ26 and AJ27 Engines. The Gaskets are different. The FelPro Gaskets service the AJ27 only.

 

This thread may help.

EZDriver

https://www.jaguarforums.com/forum/x...ics-faq-52653/

 

I replaced the secondary tensioners in my 98 XK8, but there is still a slight rattle on cold start for a second or so. I am thinking about changing the secondary chains, along with the primary's and related tensioners and guides.

I would really appreciate it if any one can tell me if the 1998 Ford Thunderbird parts are the same as Jaguars? Buying them from a Ford dealer would almost certainly save money.
Regards,
White Bear.

 

Don't know about '98 but the '00 - '02 Lincoln LS and Ford Thunderbird did have the same parts. In fact, Ford/Lincoln went through the same early tensioner failure issues but seem to have upgraded about a year before Jaguar.