trainzkid88 wrote:

some of the old pn's need to be converted to the modern 6 or 7 digit numbers as the database doesnt add that for you. also the dealers may still have that info although the global parts site does not. and yes they guarantee fitment if they tell you the part number. when the dealer supplied the wrong filters for our machine they simply exchanged them it did help that dad was delivering parts to them as the company he works for had the contract to cart their freight.
 

Converting an old part number such as S1591 to a seven digit part number as you suggested before will not work. Only six digit part numbers work. S1591 works as 0S1591 but not 00S1591. If you use the replacement part number for 0S1591 which is 165-3929 then it will work but that is a replacement part not just an updated part number.

Personally I have never had any trouble with Tilly's. They usually reply within a day or so. Usually with sorry we don't stock that part. One thing I do hate about Tilly's is they don't update their website. Recently I asked about parts for a machine they had listed on their website only to be told that machine had been sold/scrapped five years ago.

i couldn't remember if it was 6 or 7. i have had some success do this to find parts and have been able to get the new part numbers.

I had a look at my dozer again today and its not looking too good.I loosened the oil pan drain plug and managed to get 5 litres of coolant before it started dripping oil,then drained the oil. I'm hoping no damage has been done to the motor.
So it looks like removing the pre combustion chambers first and see how they look and if okay ,a head gasket replacement which i'm not looking forward to.
Is it worth getting a mechanic to do the job or have a go myself ,the dozer is a fair way from town and its out in the open and not in a shed.I have no idea what they would charge but i'm guessing 6 to $8000,i may be way out.
Also could the coolant be getting in around the waterpump area,just a thought.
 

If your going to pull the heads I would get them checked for cracks as well.

if you can get the machine closer to town even if it costs you $400 for transport its going to be easier to work on and less time spent travelling to work on it. its quite feasible to do the work your self but there will still be machine shop charges for crack testing and surfacing the heads etc. it's better to be doing this in a shed than outside a. its more comfortable and b. its cleaner

Thanks for everyones help,I'll have a go at fixing the dozer myself ,i'll look at building a shed for it even if its temporary one. To get the machine back to Perth is around $1000 and because its not going now is too difficult. The parts arn't that expensive ,i think the head gasket was around $60 so its more a matter of finding the time in between my job,a lot of hard yakka and hope i don't break any bolts along the way.I'll let you all know how i progress,it will be over a few months or more in between my job,Cheers John.