Thread: Head reassembly TD5 defender

Would have to look up the head bolt settings but they are extreem!

Biggest issues is a warped, cracked or damaged head. Beyond that it is quite easy if you follow the instructions.

Are you sure it is the head gasket? The plug between # 3 and 4 (behind the exhaust manifold) can leak and display just like this. If the leaking coolant is your only symptom, it will be well worth chiecking this plug, before going to the expense of a head gasket change.

cheers

Yep it is deffinatly the gasket coz the mechanic forced it by presure testing the coolent system.
Thanks anyway. bought workshop manual today and priced head gasket kit ($900ish) Looks like i'll be busy one weekend soon

Don't forget to make shure the injectors go ack in the right spot if you pull it all down.

The Head is heavier than you expect. I also gave my head gasket 2 thin coats of copper gasket spray.

Originally Posted by George130

Don't forget to make shure the injectors go ack in the right spot if you pull it all down.

The Head is heavier than you expect. I also gave my head gasket 2 thin coats of copper gasket spray.

Shouldnt use any sealant of any kind on a head gasket unless it specifically states to do so particularly in a diesel and definitely not with a steel laminate gasket and unless its an old style copper sandwich gasket ala Mini's etc, every manufacturer will state "DO NOT USE SEALANT ON HEAD GASKET" somewhere in their literature.

Composite type head gaskets will have a coating on them designed to bond after first run and engine heats up and with steel laminate ones, the sealant interferes with the specific crush designed into the gasket.

In a diesel its a huge no no as the sealant is the first thing to give and will burn out once compression gasses start to pass thru it.

Not enough fingers and toes to count how many failed heads I have seen where sealant was smeared over the top and a fair amount I voided as a warranty claims.

Cheers

Andrew

Originally Posted by LOVEMYRANGIE

Shouldnt use any sealant of any kind on a head gasket unless it specifically states to do so particularly in a diesel and definitely not with a steel laminate gasket and unless its an old style copper sandwich gasket ala Mini's etc, every manufacturer will state "DO NOT USE SEALANT ON HEAD GASKET" somewhere in their literature.

Composite type head gaskets will have a coating on them designed to bond after first run and engine heats up and with steel laminate ones, the sealant interferes with the specific crush designed into the gasket.

In a diesel its a huge no no as the sealant is the first thing to give and will burn out once compression gasses start to pass thru it.

Not enough fingers and toes to count how many failed heads I have seen where sealant was smeared over the top and a fair amount I voided as a warranty claims.

Cheers

Andrew

Thanks.
It was the supplier who told me to do it. Engine is still going strong so was worth it in my case.

Happy its working for you but you still don't do it. Spent enough time in engineering workshops, wholesale for OEM and now with a Genuine manufacturer mate.....

Plus you dont want someone to take the advice and end up with damage now do you....

Originally Posted by LOVEMYRANGIE

Happy its working for you but you still don't do it. Spent enough time in engineering workshops, wholesale for OEM and now with a Genuine manufacturer mate.....

Plus you dont want someone to take the advice and end up with damage now do you....

+1 to this, copper gasket sealant is for copper gaskets.