Mud-club
Vehicle & Technical => Discovery => Topic started by: Disco_Dennis on January 03, 2010, 18:40:31
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Head gasket's gone again on my HS2.8 engined Disco. :cry:
That's the 3rd one in 2 years! :shock:
I bough the car with a blown head gasket originally (the idiot I bought it from drove it 50 miles with no water in the engine! :shocked: ), and then rebuilt the engine myself using wherever possible OE parts.
The original head was skimmed & tested out fine, the first HG I fitted was a Britpart one (multi-layer metal jobbie - Feb 08), so when it went the next time (October 2008) I fitted an Elring (which is OE) and a new head (even though the original wasn't cracked it had already been skimmed twice).
So, what do I do.....
I'm sooooo tempted to ditch the HS and install an Isuzu or Diahatsu 2.8 instead. :undecided:
Don't want to go to a 200 or 300 'cos of the lower power. =;
As you can imagine, it's really starting to Piddle me off..... :evil:
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I can highly recommend the Diahatsu 2.8 TD i had one a while back in a RRC with the pump tweaked and was highly impressed with the amount of power it had..
Definatly something wrong somewhere if your blowing that many gaskets......
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Got to agree, I'm having a similar run of bad luck with a 300 TDi, I've just had the head (which was after the first head gasket failed) skimmed, it needed 14 thou :-k
This will be the 3rd atempt at fixing it, though I strongly suspect it ran low on water, the pump on the 300 TDi is very high and I think that's one fo it's problems.
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Thing is, I know why the Britpart HG failed.
Loss of water of a period of time due to leaky pipes coupled with a blocked radiator all conspired together to knacker it. :roll:
I'm taking the head to be skimmed (if it's warped, otherwise it'll just a a damn good polish!) & pressure tested tomorrow - if it checks out OK I'll probably hope for 3rd time lucky. :pale:
Thing is, I like the power and torque this thing produces. I might fix it, run it for a few months, and then do an engine swap..... I dunno.... maybe I should buy an SJ? :-$ :-> :^o
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Thing is, I know why the Britpart HG failed.
Loss of water of a period of time due to leaky pipes coupled with a blocked radiator all conspired together to knacker it. :roll:
I'm taking the head to be skimmed (if it's warped, otherwise it'll just a a damn good polish!) & pressure tested tomorrow - if it checks out OK I'll probably hope for 3rd time lucky. :pale:
Thing is, I like the power and torque this thing produces. I might fix it, run it for a few months, and then do an engine swap..... I dunno.... maybe I should buy an SJ? :-$ :-> :^o
Have you checked the block?
It may have a high or low spot on it causing your problems :-k
I'm No expert but just a thought
May be worth checking [-o<
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I'm tempted to think a skimmed block is better than a new one anyway, by using it you stress relieve the casting.
Anyway, a good machinist will only take off what's needed, so if it's straigh tit'll get a tickle but if it's warped then it'll get brought back into true.
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Is the cylinder block warped. Mite need decking
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Never thought about the block, although i've sanded the block each time (wet & dry) to get rid of any crap left over from the old gasket... - it's cast iron, though, isn't it? :huh: :-. :?
I'll get the rule out and have a look tomorrow after I've dropped the head off at C&F in Henlow.... 8-[
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Well, I've prepared and checked the block and it's as flat as flat, so no problem there. :clap:
Just wait for the parts to arrive tomorrow & I can start putting it back together again.... :dance:
That is as long as the head's OK..... [-o<
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Hope Ive not missed something above & I'm thinking outloud so bare with me, but is it the head gasket? what are / is the symptom. Check the block and maybe peek down the bores to see if its cracked??
Has the WP impeller s**ged its self?
Thermostat?
Restricted flow in the rad?
Any use
ATB
John
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Oh yes, definitely head gasket, put the 'sniffer' on the expansion tank - liquid went green/yellow after only about 20 secs! :shocked:
It had gone on Cyl4 - spotted it as soon as I'd removed the head on Sunday. :roll:
The head has pressure tested OK, and has had 5thou taken off it to make it nice and flat again :grin:
Just waiting for new head bolts to arrive (tomorrow am) and It'll all (hopefully!) be back together by midday :dance:
Good job, too - I'm off to Scotland in it on Friday morning.....!