Vehicle & Technical > Defender

Messed it up

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trickydicky:
hi i have just changed my head gaskit on a 2.5td i followed the manual to the word and i used an origenal landrover gaskit which was steel. everybody on the forum said use sealant but every mechanic i spoke to said dont use anything and so did the instructions on the gaskit. so i didnt use sealant now i have a very slight leak on some of the bolts. will this bed in at all or dous it need to be re done or can i tork the bolts up any more?

Les Henson:
I don't use sealant either when doing a head gasket - the head should be dead flat as well as the deck.  I take it you are getting bubbles around one or more of the head bolts? I would guess on the manifold side of the head - this is usually where it happens.


Les.

trickydicky:
yep what do you sergest?

Les Henson:
Before you reassembled the engine, did you clean out all the head bolt holes in the block by screwing a bolt in and out?
When the head is removed it's common for some of the bolt holes to fill with oil/water. If any is left in them, then it's forced up the bolt shafts and out between the bolt head and the cylinder head in the form of tiny bubbles. If you think about it - it's highly unlikely that both liquid and compression will both leak to a bolt in order to get what you are seeing.  I suggest you leave it for a couple of hundred miles and see if it stops. Perhaps re-check the head bolt torque after a short while.


Les.

stuntman:
Good advice Les. Well I've learned something  :P

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