I ended up finding a 26k engine (with carfax) to replace my 96k mile engine with dropped sleeve on my Disco II. If anyone wants to know engine options out there for the Disco II your welcome to private message me as I considered probably about 15 different engines including refurbished. I am trying to figure out exactly what to have the mechanic do as part of the engine swap.

The engine warranty language is as follows:

***Must retain all service records and legitimate receipts to provide proof that conditions were met.
HAND WRITTEN RECEIPTS WILL NOT BE ACCEPTED***

1.A new thermostat must be installed
2.Heat tab must not be melted or missing
3.Replace oil, filter, timing belt, water pump, and all oil seals
4.Do not alter or dissemble
5.Damage by customer/technician due to improper installation
6.Intake manifold must be cleaned prior to engine installation to avoid contamination of old engine.

Based on this, I have the following list:

1) 2 down pipe gaskets
2) valve cover gasket and new bolts
3) oil & filter
4) coolant
5) Rear main seal
6) Front crankshaft seal
7) Thermostat
4) Inspect the front gasket on Tranny and replace if neccesary

Questions:

1) Is my list above complete? What else would you do on this low mileage engine when swapping out.

2) The mechanic wants to replace the lower intake manifold gasket. Something about its a problem area for these engines and plus its easier to replace engine in parts separating it. Does this make sense? I am afraid this might void warranty so I will check with salvage yard selling me the engine.

 

If you are doing the valve cover gaskets, then the upper manifold will need to come off. Doing the lower gaskets will never be easier.

 

Does it make sense to do the valve cover gaskets on a 26k engine swap?

 

It's not necessarily mileage with rubber components, it's age and heat. Yes, do them, they're very cheap.

 

It will not hurt anything to just get them done now and not chance the warranty in any way.

 

Unless the v/c gasket are leaking first tighten them up, if the bolts are loose that this nearly always the problem.
Make sure you use a 180 degree soft spring t/stat not a factory one.

 

Will this one work from Atlantic British?

Land Rover Discovery II Replacement Thermostat

 

That be him. If changing it out... do any flushing of heater core and radiator before stat swap, don't want crap floating around plugging up the holes in the top opening.

 

British Parts of Utah has it for $40.