Hello from the east Coast,

I have several issues that all started at the same time, I wonder if any one could help me get this straight.

1: Head Gaskets leaking on both sides of block, thick oil drip build up dipping on both sides.

2: Phantom coolant leak from rear passenger side of engine. Might be a heat core, might be the engine; have not located source.

3: Oil leak from a casting port or oil something something port ? looks to be coming from behind passenger engine mount. Not above. ( have Photos to show these little black Allen head bolts on both sides of the engine with wire daisy chained together. )

4: and then there was the knocking ..... Only started a few weeks ago and dose not appear until engine is hot. While idling the other day, you can hear is almost and maybe disappear after 10 mins of running.

I have already started to pull my engine apart with my Brother who is ASE certified. So far we are down to the bock, heads removed and packed away in bins with soft newspaper. Vary clean BTW. we have not found any issues that stand out so far. I just saw this : "MUST Read For Anyone About to Repair a Head Gaskets or a Valve Train Noise. (Multi-page thread 1 2) - Disco Mike " "http://www.v8engines.com/engine-4.htm#pre-load" I will continue reading it.

** Found the problem, nuts hand tight and gaskets are shot ** There may have been one or both leaks on the exhaust manifolds, bolts a bit lose on block. One bolt look snapped off the down pipe connecting to the Cat. read you can here knocking from that ? Im pretty sure they have been lose for a while on or just on the down pipe. I been hearing loud exhaust for a while.m (no knocking ) Been on my to-do list.

I have read many horrible stories of bad engines in the 2003, people have lasted every thing to mixed metals, oil pumps to bearings; to much information and no point think negative.


So questions: Is there a upgraded head gasket set and seal kit ?

Also I head there was an issues with oil pumps, Maybe that's the knocking ? If so, are there upgraded ones? I am out of range for the really bad ones, but found little on what that means ? SALTY1647 3A818175
Reading info here and others " https://landroverforums.com/forum/di...il-pump-29475/ "

I have read many horrible stories of bad engines in the 2003, people have lasted every thing to mixed metals, oil pumps to bearings; to much information and no point think negative.
*2003 Disco, 103, miles

 

having a hard time deciphering photo locations but are these allen screws at each cylinder?
like someone pinned the liners and they are possibly not holding? 3. that is what it looks like

 

yup, some tried last years BIG FIX, unfortunately you have a junk block.
It can be made salvageable for $1500 in flanged liners and whatever it will cost to weld up the holes from the last BIG FIX.
I would suggest looking for another block

 

Thx guys ! Pinning the liners is a new term for me.... dose not sound good. New block would kinda suck, I looked at " JE Robison Service - Bosch Car Service Specialists ? the blog: Should You Rebuild or Replace Your Land Rover V8? "

$5-6,000.... sounds great for fully rebuilt engine if i'm still headed into making the Rover into a Search and Rescue / Recreational Vehicle. Not sure I am with this rover or not.

The sound of the knock is coming from the right side(drivers) but .. oil leak is coming from the left side ( passengers ). I just took off the oil pan and on to the motor mount today; where the leak is coming from.

So pinning the liners, is there a chance one of them is moving up and down?


Found my exhaust leak, nuts were hand tight and gaskets are done.... Plus one of them was moving around once I took it off the block.

 

$5-6k only gets you a short block a JE Robison's.

to answer your question YES someone over heated the block and the at least one liners came loose.

Pinning Liners was someone's BIG FIX last year, they idea was to drill threw the block and the liner and use an Allen screw to kept the liner from moving, as you can see it doesn't always work to well. and you end up with a block that not only has loose liners , but now you have also drilled holes there the block.

the BIG FIX this year is to drill a hole in the block and weld a big piece of slag to the liners, hoping that will keep the liner fro moving.

Your best bet would be to look for another block, all 4.0 and 4.6 blocks will interchange

 

Good info, You mentioned getting a block with new liners; is their one you can get that's been updated? Fixes that issue?

I suppose one could always weld the holes up ? So this years fix is to weld steel to the aluminum block ? I've a accidentally welded steel to my aluminum jig before. I was supersized it was on there pretty good. Never thought to test the strength. I wouldn't think it would hold.

I am going to Finnish taking it apart and see if we can determine the knocking or other damage. When It started knocking, Only put maybe 50 miles on it. Had to go to work ....

 

I would agree with you on this years BIG FIX, didn't think last years BIG FIX would work either,but what do i know.
you could weld up the holes and then have flanged liners installed and it would be a useable block

 

so are we thinking the oil scraper ring forced oil out of the threaded "pins" bolts?. .....
so is it plausible that the little bolts simply backed out, from lack of tension of thread locker? curious

 

Back to getting a block with new liners; is their one you can get that's been updated? Fixes that issue? I been reading about getting the liners top hatted ? From a local machine shop or what about that new block you mentioned ?
Pinning a slipped liner in a D2 V8 - Thoughts? - Australian Land Rover Owners

 

you could ask Dusty1 he just had a block done with the help of another member.

LAsleeve has a lot of good information on there site