LOW OIL PRESSURE 12HT Diesel Landcruiser?

[My60Series]

Can anyone help me???? I have a 1988mdl GX HJ61 Lndcruiser 12HT Diesel. It has 310000km on the clock and the guage in the cab tells me I have low oil pressure. I removed the sender as I do not trust electronic guages and fitted a oil fed pressure guage. These are the reading I have taken

Cold @ Idle 70psi

Cold @ 2500 RPM 90psi

Hot @ Idle 30psi

Hot @ 2500 RPM 58psi

Can anyone tell me if these figures are ok????? I am not sure. I think the low idle is ok but Im a little concered about 58 - 60psi oil pressure at high idle when the old girl is hot. I only have a Gregorys manual and they dont give you much info on oil pressue. Any help would be greatly appreaciated. :

[supertownace]

Can anyone help me???? I have a 1988mdl GX HJ61 Lndcruiser 12HT Diesel. It has 310000km on the clock and the guage in the cab tells me I have low oil pressure. I removed the sender as I do not trust electronic guages and fitted a oil fed pressure guage. These are the reading I have taken

Cold @ Idle 70psi

Cold @ 2500 RPM 90psi

Hot @ Idle 30psi

Hot @ 2500 RPM 58psi

Can anyone tell me if these figures are ok????? I am not sure. I think the low idle is ok but Im a little concered about 58 - 60psi oil pressure at high idle when the old girl is hot. I only have a Gregorys manual and they dont give you much info on oil pressue. Any help would be greatly appreaciated. :

yeah the figures sound about right. leave it well alone. always use a good quality "diesel engine specific" oil like BP mono 30 etc. DON'T use valvoline engine oil as it will glaze up cylinder walls and cause problems.

most oil pump relief valves are set to about 60 pound anyways. anything higher than this and you start to get problems like spinning bearings on big ends/mains.

the idle figures are ok too.....i've seen chev and holden v8's have a low as 10 pound at idle....thats a REAL worry

cheers

[My60Series]

Can anyone help me???? I have a 1988mdl GX HJ61 Lndcruiser 12HT Diesel. It has 310000km on the clock and the guage in the cab tells me I have low oil pressure. I removed the sender as I do not trust electronic guages and fitted a oil fed pressure guage. These are the reading I have taken

Cold @ Idle 70psi

Cold @ 2500 RPM 90psi

Hot @ Idle 30psi

Hot @ 2500 RPM 58psi

Can anyone tell me if these figures are ok????? I am not sure. I think the low idle is ok but Im a little concered about 58 - 60psi oil pressure at high idle when the old girl is hot. I only have a Gregorys manual and they dont give you much info on oil pressue. Any help would be greatly appreaciated. :

yeah the figures sound about right. leave it well alone. always use a good quality "diesel engine specific" oil like BP mono 30 etc. DON'T use valvoline engine oil as it will glaze up cylinder walls and cause problems.

most oil pump relief valves are set to about 60 pound anyways. anything higher than this and you start to get problems like spinning bearings on big ends/mains.

the idle figures are ok too.....i've seen chev and holden v8's have a low as 10 pound at idle....thats a REAL worry

cheers

[My60Series]

Can anyone help me???? I have a 1988mdl GX HJ61 Lndcruiser 12HT Diesel. It has 310000km on the clock and the guage in the cab tells me I have low oil pressure. I removed the sender as I do not trust electronic guages and fitted a oil fed pressure guage. These are the reading I have taken

Cold @ Idle 70psi

Cold @ 2500 RPM 90psi

Hot @ Idle 30psi

Hot @ 2500 RPM 58psi

Can anyone tell me if these figures are ok????? I am not sure. I think the low idle is ok but Im a little concered about 58 - 60psi oil pressure at high idle when the old girl is hot. I only have a Gregorys manual and they dont give you much info on oil pressue. Any help would be greatly appreaciated. :

yeah the figures sound about right. leave it well alone. always use a good quality "diesel engine specific" oil like BP mono 30 etc. DON'T use valvoline engine oil as it will glaze up cylinder walls and cause problems.

most oil pump relief valves are set to about 60 pound anyways. anything higher than this and you start to get problems like spinning bearings on big ends/mains.

the idle figures are ok too.....i've seen chev and holden v8's have a low as 10 pound at idle....thats a REAL worry

cheers

Thanks, I wasnt 100% sure.. Those dam OEM guages! I use Fuchs Ultimate 15W40. Would I be better going to a straight 30w oil. FUCHS have a T0430 which is a straight 30W oil that we use at work in all our CAT D11 Transmissions and Hydraulics.

[supertownace]

i havent had much to do with fuchs oils. i would check up on it to see if it is diesel engine compatable. yeah oem gauges can be troublesome but i personally wouldnt use a gauge that allows hot oil under pressure into the cab with you.....had the experience of that pressure line letting go......it sprayed me with hot engine oil...i had 1st and 2nd degree burns on my legs.

cheers

[My60Series]

i havent had much to do with fuchs oils. i would check up on it to see if it is diesel engine compatable. yeah oem gauges can be troublesome but i personally wouldnt use a gauge that allows hot oil under pressure into the cab with you.....had the experience of that pressure line letting go......it sprayed me with hot engine oil...i had 1st and 2nd degree burns on my legs.

cheers

Cheers mate. We have been useing Fuchs oil at work for four years now. The engines and other components we rebuild are in great condition. We recently had a pump on a DK90 drill acheive over 25000hrs. It somehow missed getting changed out at 10,000hrs. I wish I new a little more about smaller engines though!

[supertownace]

i havent had much to do with fuchs oils. i would check up on it to see if it is diesel engine compatable. yeah oem gauges can be troublesome but i personally wouldnt use a gauge that allows hot oil under pressure into the cab with you.....had the experience of that pressure line letting go......it sprayed me with hot engine oil...i had 1st and 2nd degree burns on my legs.

cheers

Cheers mate. We have been useing Fuchs oil at work for four years now. The engines and other components we rebuild are in great condition. We recently had a pump on a DK90 drill acheive over 25000hrs. It somehow missed getting changed out at 10,000hrs. I wish I new a little more about smaller engines though!

not much different to an engine in a D11!!!!!!

they both have up-and-down-and-round-and-round bits inside....both need a cooling system......and both explode when you run them out of oil!!!!.

it doesn't matter how big an engine is....they still all have the same basic components to make them work.

cheers

[My60Series]

i havent had much to do with fuchs oils. i would check up on it to see if it is diesel engine compatable. yeah oem gauges can be troublesome but i personally wouldnt use a gauge that allows hot oil under pressure into the cab with you.....had the experience of that pressure line letting go......it sprayed me with hot engine oil...i had 1st and 2nd degree burns on my legs.

cheers

Cheers mate. We have been useing Fuchs oil at work for four years now. The engines and other components we rebuild are in great condition. We recently had a pump on a DK90 drill acheive over 25000hrs. It somehow missed getting changed out at 10,000hrs. I wish I new a little more about smaller engines though!

not much different to an engine in a D11!!!!!!

they both have up-and-down-and-round-and-round bits inside....both need a cooling system......and both explode when you run them out of oil!!!!.

it doesn't matter how big an engine is....they still all have the same basic components to make them work.

cheers

True, the basics are the same... But some things are VERY different.. Thanks for your advice though.