2H cylinder head Differences (2 Viewers)

[Juha]

problem is that my engine is 2h (-86) and cylinder head is cracked
and my friend has earlier model 2h cylinder head (-83) but are there any differences?
can i change older head to new motor?
thanks.

 

[Juha]

thanks a lot!

toyodiy gives also only one part number for cylinder head
http://www.toyodiy.com/parts/p_E_1986_TOYOTA_LAND CRUISER_HJ60LG-MW_1104.html

 

[Tapage]

I know there is 2 diferent head gaskets .. pre 85 and post ..

 

[lostmarbles]

I know there is 2 diferent head gaskets .. pre 85 and post ..

Quite right David!

But actually the change took effect in November 1984 - just to be picky

Can anyone explain how 2 engines can share the same head but require different head gaskets?

(By the way - I'm just the "brainless messenger". I don't even own an HJ-anything and have no experience of H or 2H engines.)

Perhaps the head gaskets are different thicknesses to suit different compression ratios?

 

[Jan-78FJ40]

Quite right David!

But actually the change took effect in November 1984 - just to be picky

View attachment 361376

View attachment 361377

Can anyone explain how 2 engines can share the same head but require different head gaskets?

(By the way - I'm just the "brainless EPC messenger". I don't even own an HJ-anything and have no experience of H or 2H engines.)

Perhaps the head gaskets are different thicknesses to suit different compression ratios?

I think the gasket just got upgraded and the new one fits old and new.
cheers,
jan

 

[Tapage]

the metal ring around the cilinders are diferent between both head gasets and that's coz are 2 diferent sleeve sets for same 2H engine .. as maybe you think pre 11/84 and post 11/84

Askme how I know ..

 

[Juha]

there is 3 different cylinder blocks for 2H engine.
i know that the first ones had removable cylinder tubes and newest dont.
and some differents in oil cooler.

http://www.toyodiy.com/parts/p_E_1986_TOYOTA_LAND+CRUISER_HJ60LV-MCW_1105.html

('8008-'8411)
('8411-'8510)
('8510-   )

 

[amaurer]

1985 also corresponds roughly with the time they changed the 3B from composite to MLS construction head gaskets.

 

[lostmarbles]

1985 also corresponds roughly with the time they changed the 3B from composite to MLS construction head gaskets.

And I wonder if that is related to the removal of cylinder liners from 3B engines which occurred around 1985 too!

Edit: Ooops. Looking at more data today (Sept 2013) I see liners were still in use till Aug 88 on a BJ60 (3B) and Jan 1990 on a BJ74 (13BT)! <shrug>

 

[Bear Kaufmann]

I am currently fitting my 2H with a head gasket and am noticing the coolant ports on the passenger side of the motor are blocked by the gasket?
The old one I am replacing did the same.. Is this correct? I have never had overheating issues but don't understand why you would block flow of coolant to the head

 

[sodafeld1]

so how's it goin?