Range Rovers Forum banner
1 - 12 of 12 Posts

·
Registered
Joined
·
8 Posts
Discussion Starter · #1 ·
Hi all

I have a 4.6 HSE which recently overheated and steam blew through the vents. Both my mechanic and another local 4x4 garage said that it prob due to leaching of the engine block
They tried replacing the thermostat (s) but to no joy?
They have said that a engine replacement is the only likely solution.
I have had some quite high quotes for this £2000.00 -£3000
a) i was wondering if anyone had experienced this kind of issue before
b) anyone out there in the west yorkshire ( ilkley/ leeds ) region would / could recommend or carry out an engine swop

as recently moved to the area so looking for a reliable mechanic.

many thanks

Oliver
 

·
RIP Our Friend
Joined
·
27,834 Posts
Gotta love when shops jump to the most expensive solution with no actual inspection. Did they check for xhaust gases in the coolant? pull the spark plugs to looks for "steam cleaning"? compression test? This could very well be as simple as a weekend head gasket job.
 

·
Registered
1995-2002 Range Rover P38A
Joined
·
694 Posts
agreed - as a near to you (Goole) owner just blew £600 on failed repairs - exhaust gases in coolant therefore headgasket yes?? Er not necessarily - heads off inc £192 for specialist drilling out of 1 (& I know the engineering shop/garage so not a rip off) & headgaskets fine, heads not warped,,, replaced head gaskets as I'd bought them + inlet/valley, exhaust gaskets, water pump and thermostat...... after cocking up the plugging back in the elecs (spent more dosh on a crank sensor) car ran fine for 40 mins at idle but after driving it 5 miles, she overheated.... best guess a porous block or crack in a liner,,, plugs not 'steam cleaned' no 'mayo', - can you get it pressure tested as personally I think that will decide the future ----- I looked at replacement engines circa £750 + fitting if you aren't able to do yourself say a total of £1250 - £1500 after a lot of thinking I've gone down the replace the car option --- when I bought mine I knew very little even after a year of 'lurking' but now looking back what I thought was 'copperease' on the coolant tank cap (why would you put a metal based lube on threads to make it easier to undo???) realise this was probably one of those melt under heat and fill the gap jobbies - we've only done around 1200 miles a year over 5 years (inc a couple of 300 mile round trips with 860kg horse trailer)...
 

·
Registered
Joined
·
8 Posts
Discussion Starter · #4 ·
Thank you so much for your wise and welcome words.
I will get all the points you mentioned looked into..

I'll let you know how i get on....

Many thanks once again
 

·
Registered
Joined
·
8 Posts
Discussion Starter · #5 ·
Thanks for the advise. I think this will be a case of elimination.. not ready to give in just yet.
If you have the garages details as i prefer going on recommendations

thanks once again
 

·
Registered
Joined
·
8 Posts
Discussion Starter · #6 ·
Beyond All Repair? New Engine or Not?

I recently asked for help after my P38 4.6 hse violently overheated and steam came thrugh the air vents.
A few garages said new engine.. however i asked for help on here and you guys said new head gasket, get a pressure test done as the first action to take

Anyway had both done and also a new temperature matrix fitted behind the dash and yet still on starting it shoots to red.

Is there anything else that you can recommend that might be causing this overheating as still not convinced it need a new engine

many thanks
 

·
RIP Our Friend
Joined
·
27,834 Posts
Re: Beyond All Repair? New Engine or Not?

So the pressure test found no dropped liners or cracked block or you wouldn;t have had the head gaskets done. Did you have the coolant checked for exhaust gases?
 

·
Registered
Joined
·
8 Posts
Discussion Starter · #8 ·
Well the results are in

Following a pressure test I had both a new head gasket done and also a new temperature matrix fitted behind the dash and yet still on starting it shoots to red.

Is there anything else that you can recommend that might be causing this overheating as still not convinced it need a new engine

many thanks
 

·
Registered
1995-2002 Range Rover P38A
Joined
·
694 Posts
sniff test the coolant expansion tank - basic use your own nose and if it smells like exhaust gas/oil/fuel it could well be the block but if a pressure test was done seems at odds (local garage would do a proper check for you with their gas analyser they use for MOT's -- thermostat OK?? youngest's car just blew head gasket due to thermostat jammed shut.. you say it 'shoots' into the red on start up -- if you've had head gaskets replaced is the gauge actually reading properly and not shorted out £15 at Maplins for an infra red handheld thermostat is a useful tool in the box,
 

·
Registered
1995-2002 Range Rover P38A
Joined
·
24 Posts
When you say shoots to red are you meaning as soon as engine starts or after a few minutes? The engine will take a few mins to warm up. If is goes into red immediatly then its more likely to be a sender fault/electrical issue. Can you put your hand on radiator top hose for a few seconds or is it untouchable?
Sounds daft but have you checked the water pump is working properly?
 

·
Registered
Joined
·
8 Posts
Discussion Starter · #11 ·
Hi RRtoadHall and Scimitargtc

well i have spoken to the garage..
They have skimeed head gasket, new heater matrix, new raditor and pressure tested.

When they did they pressure test it was over pressurising they were about to check the gasses when it blew
They believe there is a crack in the block and they think the cyliner block pressure is transfering behind the liner
They said if they said it blows water out and if they woere to leave the pressure cap on it would blow the radiater and heater matrix which they have just replaced.
This is work is carried out by Jake Wright landrovers in ilkley ..

He said that he's sure is cracked.. now there is a solution which you can add to the system after draining, run the engine then leave which should seal any crack, drain then refil with coolant but he has tried this on two engines to no avail.
He's reluctant to fit a second hand or used engine as there are no guarentees that it will be kosher and if can be a costly mistake if it is a damaged one ( through fitting charges etc)
The alternative was a new engine block that they have made that has special liners which apprantly have a rim on ( he desicribed them as an upturned top hat with the rim at the top) and the gasket sits over them,

This is at a cost of £6000

Its a lovely car and i don't want to just sell for a few hundred quid to someone whos going to wreck it or strip for parts. but i faced with little alternative on this one

Any help would be once again greatley received.. either ideas or any mechanics that you know who could help
 

·
Registered
1995-2002 Range Rover P38A
Joined
·
694 Posts
Yup their diagnosis sounds spot on - personally I'd forget the additive - now sure my 4.0SE had it before I bought her & lasted 5 years but only about 6k miles - search on here and there's couple of products -- I did try 1 as a last resort this summer but to no avail = the liners are called 'top hat' due to their profile ie the lip which stops the liners sliding in the bores are clamped between block and heads - personal opinion only but you make a financial decision - 'how much you paid for the car' 'what she's worth working compared to similar age/specs' there'll not be a vast value increase just because you spent £6k on an engine - plenty out there so unless she's mint, full spec etc etc ie has a USP it won't be recouped - £6k is a lot of money to replace with not that I'm saying the price is out of the way.... mine was worth c.£1500 and as much again for an unknown engine fitted so decided to budget £3k for a replacement - to be honest I was so disappointed at this level of spend I spent under £2k and am busily swapping the best bits off my SE onto the replacement,,,,,,
 
1 - 12 of 12 Posts
Top