TD42 head gasket .........what size ?

Are you sure truckster???

When this rig is back together and not running right are you gonna pay for another head job to get it right??

I know you just had to say something but to make an unqualified statement like that will really undermine your credibility with the groupies!!

I suggest iamgq finds out if the head has been shaved and does a lot more homework before selecting a gasket let alone whatever else is getting done to the donk.

We dont want to alter the the compression ratio do we??

kezza

if he is just putting a gasket on to his old unrebuilt engine with 250,000klms on it, then its gonna be worn a fair wack aint it.

Unless you get a micrometer onto the gasket you are going to change the compression arent you... you are only given 3 sizes to play with...

If you want more compression adn want to wear out the engine, then go with the thin one....

to me its just common sense.

glad u dont fix anything of mine,with that sort of common sense truckster

kezza

Why what doesnt make sense?

Old motor needs all the help it can get, so dont up the compression for no reason. You up the compression you risk blowin seals and undue stress.

If its a rebuilt motor, then u would go with measuring it up, and do it that way.

obviously the different size gaskets are for varying changes to head size due to head machining. There is no need to drop compression on a diesel just because its old. Usually if the head is off a diesel its being rebuilt anyway - a change in compression is not gonna make the motor die any sooner or later- if its that close to 'death' - why not rebuild it ?????????????????
Sorry truckster I know you are not a mechanics bootlace but there are no 'seals' you need to worry about when looking at the compression in the cylinders - only the rings and beleive me when they are shot - he'll replace them
just stick to topics you know some thing about and dont confuse people.

I really didnt want to say any more about this but it seems that you need to have an opinion on things wether you know jack about it or not - not good for your credibility.

I believe you chase up some good info at times and help people heaps but to quote an old cliche " a mans gotta know his limitations"

Honestly I can see your heart is in the right place but sometimes you just loose all credibility by shooting off your "keyboard".

with due respect

kezza

truckster
As an aside you will at least be impressed to know that on the subject of tyres - which I know you and I have differed on at times in the past.

A good friend and I are trialling the goodyear MTR alongside the BFG Mud terrain so as to give a totally unbiased ( yes I know thats very rare these days) comparison between the 2.

The MTRs will be fitted to a 4.2 TD GU Patrol next week and I will objectivly report as we find out how the 2 compare.

The GQ with the BFG MTs will be doing the simpson, strezleckie and birdsville tracks soon (may)
I might add that the "only" reason that the MTRs are being used on the GU are that you have convinced me that they are worth a look and I am a compulsive reseacher and really like to know what are the ideal products in the market place.Also I have since spoken to at least 2 happy MTR users that feel that they are performing well offroad and on wet bitumen.

However. I still feel that a lot of people who take on an all terrain tyre in the misconception that they will perform safely in the wet need to look at this new generation of "soft compound" offroad tyre.

I will not be offering opinions based on what 'others' have said but on what I actually see and experience with these tyres (yes I know thats rare too)

By the way I can get them (mtr's) for $275 each (for 16' rims)

more to come on this

kezza