[boomroomrat]

I started to work on my Sedona, intending to replace the head gasket, as the engine was leaking cooling water into the oil.

When asking a local diesel specialist for advice about removing a part, I was told that it is not unusual for these engines to develop a warp in the cylinder head, not due to overheating, but because of the quality of the metal.

I've put my tools down and I'm having an engineer look to see if that's the case now.

Has anyone else had a similar experience?

 

[Typro]

Hello boomroomrat!
Have the same type car. How many miles on the meter?
Sounds very strange that problem of yours :blink: . And the explanation the mechanic gave you was even more odd! I have never ever heard of a similar problem except: 1. When the cylinder head has been taken off, been put back and the bolts tightened with uneven tourqe. OR, when the motor has overheated and the metal has been heatstressed. Are you sure nothing like that has happened?
Anyway, I appreciate followup on your case!
Cheers T

 

[54FLX]

Hi

Don't know of any Diesel engined Sedona / Carnivals with problems but 1 or 2 have had problems with petrol engined ones.

Type "Head Gasket" in the search field at the bottom of the Sedona / Carnival forum index here Search at bottom to see what I mean...

Simon

 

[Murphwiz]

Get the odd head gasket failure on the diesels, very rare though.
Bit of a pig of a job to do, everythings a bit tight, find it easier to drop the whole lump out to work on it, works out quicker in the end.

 

[54FLX]

Apologies for the thread highjack

I've worked on diesel engines in the rail industry for over 20 years and to cut a long story short to get then to fit under a train we have to lay them on their sides and engines dont like this as the coolant in them tends to leak into the cylinders over a period of time especially when they are standing.. This results in major modifications to the head and cylinder liners.. Engines are designed initially to work in a vertical position.

To lay a bank of a KV6 on its side is a disaster waiting to happen as Ks are known to have weak HG's The KV6 is a lot better then its 4 cylinder cousin though, ask a K engined Elise owner.

Simon

 

[Murphwiz]

Originally posted by 54FLX@Mar 18 2005, 02:06 AM
.

To lay a bank of a KV6 on its side is a disaster waiting to happen as Ks are known to have weak HG's The KV6 is a lot better then its 4 cylinder cousin though, ask a K engined Elise owner.

Simon

Quoted post​

They don't lay it on it's side, it sits as normal as an upright V engine, it's just the design KIA bought was the first Gen KV6, and that was horrendous for head gasket/liner lifting troubles.