We have a 2010 jag XJ 5.0 overheated due to waterpump, looking for opinions on decking the block. I work in a machine shop so decking a block is no biggie.

I realize that a shim saver would be needed as the block between cyls. is at .004, heads are at .008 warpage.

Blown head gaskets,block is warped between cyls. can it be decked. warpage is at .0045

 

Was the engine overheated due to loss of coolant from water pump failure? Did both head gaskets fail?

 

yes was overheated, waterpump was the issue. gaskets really didn't blow. warpage is the issue.
I run a machine shop,decking blocks is no big deal. just looking for opinions. I know by decking block
and heads a shim saver would be needed.

 

Welcome to the forum tmvandervort,

I've moved your other thread on this topic from X308 forum and merged the content with this one.

Graham

 

thanks for the move, defiantly new here. upon research I found innovated machine that makes shims on almost any application. they can also custom make one for you.
if there's interest ill repost on completion. I am going for it.

 

I'm very interested, one member hare said Jaguar says it can't be done. I was hoping the sleeves would be big enough to at least be cleaned up when it needs it and someone would make an oversize kit so you can at least rebuild a worn out engine. I did have an aluminum intake on another car warp so badly it couldn't be saved. I had to get another one from a junkyard. I would rather save my matching numbers block at all costs.

 

What is the condition of the rest of the engine?

Jaguar do not have bearing sets, pistons, rings and other internal engine components available as service parts.

 

I bought mine with a bad motor. And Before I dropped a small fortune on a used motor, I tried so many motor shops, 15 plus, and they all said they couldn't rebuild this motor. Even one that specialized in jaguars. Apparently they can't get parts.

 

well it was a success on the machining of the block deck. ordered head shim.

 

My warranty company had somebody remanufacture a 5.0 V8 for my car. It didn't go well. I've been told that one bank had consistent misfires until the motor got warm. This has been blamed on warpage on the decked block or heads.

I wish the OP luck.

 

Where are you currently with this engine? Were you able to find any internal components as they are not available from JLR?

 

Best solution.... Jaguar XJ LSX!!!! Someone needs to build an XJL with a LSX and I think that someone should be you!

 

Would be easier and less expensive to just buy a GM vehicle if you want one of their pushrod engines.

 

That may be true these days. When I first moved to the US 20+ years ago, there was a company called JTR (Jags that run) who specialized in fitting GM small block V8s and 3.8 V6 motors to XJs that had died. I suspect OBDII and the increasing computer integration of the drivetrain would make that more difficult these days.

 

The CAN system will not work and then there are the emissions inspections that need to be passed.

 

what can I say I love it when someone says it cant be done, and maybe it cant, but I love the challenge. first off I was extremely lucky with the internals with this engine.
I knew about the parts being hard or not available. I did an extensive checking of the internals before committing. brgs,pistons,rings all in perfect order. I feel totally confident on
reusing what I cant get. here's where I'm at.

 

So I'm guessing here, but do you intend to clean the heads more?

 

I was trying to buy a high mileage 2010 XJL from a shop with a bad engine in it a few months ago to do this swap. Emissions would be easy since you would be running a ECM out of new Corvette or Camaro. The biggest issue I saw was trying to understand what all systems would be affected in the body control computer if the engine was no longer in the vehicle (climate, navigation, etc). I have built many racecars and street cars in my life so things like header fabrication is no issue. If you took it to a shop and had it done the price would kill you but if you could pull it off in your garage the cool factor would be through the roof and the power potential would be endless!

 

ya the last pic didn't send

 

Really nice work!! How much did you have to shave the block and head surfaces?