Desirable or damage? Two hole gasket instead of one hole gasket.

Deanod · Apr 4, 2021

I bought my head gasket ready for this weekend’s work, and got a two hole instead of a one hole gasket.

I wasn’t sure what size I needed at the counter (pressure of being under-informed at the parts shop!) so I went for ‘one higher’ than the one that came off.

Doing my duty and reading the manual again today I see that 2 hole and 3 hole are actually thinner?!

so dumb question can I save this gasket (very out of the packet and unreturnable) by using two hole over a one hole?

could I increase compression?

or wreck my engine

neilly · Apr 4, 2021

Deanod said:
Doing my duty and reading the manual again today I see that 2 hole and 3 hole are actually thinner?!

Are you sure that 2 and 3 holes are thinner than 1 hole?

Cheers

Turboman · Apr 4, 2021

Deanod said:
so dumb question can I save this gasket (very out of the packet and unreturnable) by using two hole over a one hole?

Not sure what you are saying? If you are suggesting using two gaskets, one on top of the other, Don't.

You will be fine so long as you use one thicker than needed gasket. If you use a thinner one, you will cause damage.

Deanod · Apr 4, 2021

Aha, I may be stupid

Thicker gaskets for greater piston protrusion. Am I reading this correctly? One hole (as removed) is the medium thickness and the 2 hole appears to be for minimum piston protrusion?

therefore a three hole or one hole should be okay but the two hole might be too thin?

thank you chaps!

neilly · Apr 4, 2021

Deanod said:
Aha, I may be stupid

thicker gaskets for greater piston protrusion! Two hole should do me fine.

thank you chaps!

What book is that written in?

Cheers

Deanod · Apr 4, 2021

It’s the ‘ol Haynes Manual.

neilly said:
Are you sure that 2 and 3 holes are thinner than 1 hole?

Cheers

neilly said:
What book is that written in?

Cheers

neilly · Apr 4, 2021

TD5 then?

I thought it was a 300tdi.

Cheers

Deanod · Apr 4, 2021

neilly said:
TD5 then?

I thought it was a 300tdi.

Cheers

Ah forgive me, I should have said.

yep 2000’s 10p TD5

neilly · Apr 4, 2021

Then if that is the case and the haynes is correct, I cannot see it written in the rave file for the td5.All it says is replace like for like.

the 2 hole is thinner and that surely is not a good thing.

Cheers

neilly · Apr 4, 2021

@Deanod

It seems with a quick goggle,

LVB000250 1 hole is 1.27mm
LVB000240 2 holes is 1.20mm
LVB000260 3 holes is 1.35mm

Strange but true according to goggle.

Cheers

Deanod · Apr 4, 2021

neilly said:
Then if that is the case and the haynes is correct, I cannot see it written in the rave file for the td5.All it says is replace like for like.

the 2 hole is thinner and that surely is not a good thing.

Cheers

sadly I reckon you are right - it’s the sensible option to get a like-for-like gasket.

bugger, thought I might get it running today!

Turboman · Apr 4, 2021

neilly said:
@Deanod

It seems with a quick goggle,

LVB000250 1 hole is 1.27mm
LVB000240 2 holes is 1.20mm
LVB000260 3 holes is 1.35mm

Strange but true according to goggle.

Cheers

That is just weird. I thought Haynes must have got it wrong.

neilly · Apr 4, 2021

Turboman said:
That is just weird. I thought Haynes must have got it wrong.

So did I, strange old world, got to love landrovers.

Cheers

jamesmartin · Apr 4, 2021

Deanod said:
I bought my head gasket ready for this weekend’s work, and got a two hole instead of a one hole gasket.

I wasn’t sure what size I needed at the counter (pressure of being under-informed at the parts shop!) so I went for ‘one higher’ than the one that came off.

Doing my duty and reading the manual again today I see that 2 hole and 3 hole are actually thinner?!

so dumb question can I save this gasket (very out of the packet and unreturnable) by using two hole over a one hole?

could I increase compression? or wreck my engine

you either measure piston protrusion and check valve stand down or fit the same as came off 2 is apparently the thinnest and if it wasnt thick enough would cause pistons to hit the valves

Deanod · Apr 4, 2021

jamesmartin said:
you either measure piston protrusion and check valve stand down or fit the same as came off 2 is apparently the thinnest and if it wasnt thick enough would cause pistons to hit the valves

moving the valve stem seems slightly out of my wheelhouse. I’ve got some feeler gauges somewhere but I think I’m going to go for a thicker gasket.

Deanod · Apr 4, 2021

neilly said:
So did I, strange old world, got to love landrovers.

Cheers

mad isn’t it?

jamesmartin · Apr 4, 2021

Deanod said:
moving the valve stem seems slightly out of my wheelhouse. I’ve got some feeler gauges somewhere but I think I’m going to go for a thicker gasket.

get what was on

Deanod · Apr 4, 2021

jamesmartin said:
get what was on

Roger that - I’ll update when it’s on again!

Desirable or damage? Two hole gasket instead of one hole gasket.

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