I'm going to put some time aside during the Easter Holiday and replace all the timing chains, tensioners and guides on my wife's XKR which has 85K on the clock. I'm also going to pull the sump off and check for any guide debris floating around waiting to be collected by the oil pump pick up.

I have purchased the Laser timing kit for the AJ26/7 Timing Tool Set - Jaguar/Land Rover 4.0 & 4.2 V8 | Part No. 5147 | Part of the Land Rover Timing Tools range from Laser Tools but am slightly concerned about cracking off the pulley / damper bolt after reading several posts on the subject. I think I'll bite the bullet and get the Laser crankshaft pulley holder as well.

Does anyone have any hints, tips or other advice on this project?

Thanks
Andy

 

Morning Andy,
Good information in some recent threads covering this. A search will bring you lots of information, and here's one to get you started:

https://www.jaguarforums.com/forum/x...needed-175702/

Watch out for those replacement primary guides!

Mike

 

Removing the Harmonic balancer bolt was one of the hardest parts of the job. I ended up removing the rubber cover to access the torque converter on the transmission. I removed one of the torque converter bolts and stuck socket extension in the hole. That stops the engine from turning as you're cranking on the bolt. You will need a long pipe extensions for your breaker bar.

Removing the oil pan is a good idea to see what debris is in the sump pump. Changing out the guides and chains is not too hard a job.

 

Andy, I agree with Michaelh about the chain guides. Most kits have the wrong guides depending on when engine was built. Here is a link on guide discussion with some info on parts and kits.

https://www.jaguarforums.com/forum/x...3/#post1513371

As to John55 recommendation on locking down the crank
I disagree with his solution. It might work most of the time but if you warp the flex plate, flywheel, or break the structural sump that you are putting pressure on you will be in for time consuming and expensive repairs. My suggestion is to get the crank lock down tool you mentioned. It a little different than the one I have but should get the job done.

Good luck and keep us informed, Bob

 

Thanks for the advice.

Mike, I will have a good look at the primary guides when I get the timing cover off.
Bob, I agree with you about using the torque converter to help lock the crank, but I think I have seen this suggested in JTIS somewhere but even so, I'm going to get the correct tool and try that first.

Thanks,
Andy

 

BobRoy: I'm a new guy on the Forum. Can you tell me what "A drum" means in your signature? Can't figure that one out!


Lee...

 

Replied in your other thread.

 

Andy, At what mileage did you do the secondary cam chain tensioners? Or have they been done yet?

 

I replaced all mine at about 96 k and my guides were cracked and brittle. Don't think they would have lasted much longer. You can get correct guides from SNGBarrett. I think they were apx $90.00. Hardest part of job is getting harmonic balancer off. I would strongly suggest replacing bolt while you're in there

 

My coupe had 130K on the clock when I bought it and I decided to look and to my dismay I realised the secondaries hadn't been done. So I ordered a set up and didn't drive the car until they had arrived and I had a chance to swap them over. A good call as it turned out, because once removed I could see they were both cracked along their base and I suspect they wouldn't have gone through too many more start cycles before letting go.

The convertible I bought recently has already had them replaced and that has only 80K on the clock, but on a couple of occasions I've heard a slight rattle at start up which sounds like chains to me, hence the decision to replace the whole lot.

I have a new bolt to re fit the crank pulley with and have ordered the Laser Tools crank pulley holding tool from my local dealer which hopefully will make the job a lot easier.

I've decided to do the work over the easter break as I'll be taking some time off work then.

Cheers
Andy

 

Good luck. Hope everything works out

 

Thanks Dale, I'll keep you posted.

Andy

 

Hi,
It's not a difficult job, but can be long winded. I had to hire the right tools to get the pulley off the crank in the end. I did the valve guides and head gaskets too. Seemed best to do the lot at once.

I recorded the strip-down and put it on youtube here;

Enjoy,
Dale.

 

Thanks Dale,

That's really helpful. I'm curious about where you hired the tools from as I couldn't see them for hire, so I ended up buying the cam locking tools along with the puller and a holding tool for the pulley. I guess I'll either try selling them when I'm finished or keep them and hire them out to fellow forum members.

I'll let you know how I get on.
Thanks,
Andy

 

They have rentals here.

 

I bought cam locking tool set off eBay for $50 and used puller from Autozone for no charge. Tried locking flywheel with no luck and finally used starter along with 3/4 pull handle and new 6 point impact socket. This was after I pulled fans, radiator and used 400 ft lb impact

 

I rented the full set of Jaguar tools from ken Jenkins through the Jaguar Enthusiasts Club. If you join the club you get a discount, which nearly pays for your club membership.

Good luck with the job.