Nissan Patrol 4x4 (Africa)

GOOD DAY ALL, I GOT MYSELF A 2002 PATROL 3.0DI LAST WEEK, THE THING THAT WORRIES ME, IS THAT THE WATER GETS PUSHED INTO THE OVERFLOW TANK WHEN IM DRIVING, I DROVE IT FOR 450KM IT IS NOT OVERHEATING AT ALL, THE PREVIOS OWNER TOLD ME THAT THE HEAD WAS TAKEN OFF 10 000KM BACK AND IT TESTED FINE. SOME HELP PLEASE, WHERE MUST THE LEVELS BE ON THE 2 BOTTELS. REGARDS BRUCE

Hi Bruce:
1 - check for WATER in the oil
2- Check for OIL in the water

HEAD my be fine but the gasket not torqued on correctly

According to the mecahnic at Imperial Nissan: Menlyn, the ZD30 engine has a "self levelling" water [coolant] system [how it works, I dont know

If you need a new turbo - I have one [still under guarantee ]
If you need a head -- I have one [not the one on my neck -- the head for the ZD 30 motor WWW

It sounds like there is a crack in the head or a leaky head gasket.'

Take it to a reputable cooling system specialist and have them do a pressure test on the system, and a gas test in the ratiator.

One other thing to check first.
1) radiator cap?? Let someone like Silverton radiators check that
2) Anti freeze ?? Here i'm a firm believer in not using anything other than genuine Nissan OR Silverton Radiator recommended ( They know what they are doing ) Is there any in and is it the correct ratio??
3) Thermostat ?? It may be the wrong one (temp open and close not correct) or it may be sticky ( the gauge on the instrument cluster I'm told has a big tolerance and only moves up to the overheat side when the temp is hitting overheating temps.

While Silverton is doing a check on your radiator cap let them check for exhaust gasses in the radiator water. and look in the radiator and the overflow bottle to see if there is any oil residue on the surface of the water. If all this is fine then I would say there is an issue between the head and the block. Either the head is cracked, the head gasket is faulty ( again here I'm a firm believer that you MUST use a genuine Nissan gasket !!). What I found on my motor ( 4.2 diesel ) was that the sleeves are supposed to protrude above the head, and I stand corrected, by 0.3mm. I'm not sure if the ZD 30 has sleeves but would presume that it does.

This could be where the gasses are getting into the water.

Also check if you have excessive blow back oil feeding back into the turbo and intercooler.

Keep us posted !!!

Bruce tell the previous owner to give you proof of his statements about the head, surely he should have some documentation about the work done and the outcome.

Good luck

Shalom

Ek het vandag die volgende gedoen .presure test, geen lekasies. Toets vir exhaust gasse,geen in die systeem nie.het die termostaat uit gehaal, hy lyk ook nuut en hy werk reg.ek het haar nou vol water gemaak en so gelos. Sal more ogend die water vlakke kyk. Maar iemand moet my (asseblief) help. Waar moet die water le. ek het dit asvolg. Radiator vol, boonste bottel vol, ek die onderste bottel op max.
Enige hulp sal help, ek moet haar reg kry. Groete

Nog n ding,wat moet die presure cap se druk wees,die een wat op was is 0.9bar

Dit lyk reg - Die cap relief pressure moet tussen 0.78-0.98 bar wees

Hi daar almal.ek gaan maar more die head afhaal en kyk wat daar aangaan. Dm wil die trol nog lank ry, so ek wil klaar van die mods doen wat ek kan.
Ek gaan n madman gauge insit. Vir die egt, water temp/level, oil temp, boost. Dan wil ek by grootseun die intercooler en fan kry, pil catch can, en ek wil die egr toemaak, ek wil hoor wie kan my help met die verstelings van die boost ,want ek sien mens moet dit doen as jy die egr toemaak. Wat moet ek nog doen of voor kyk as ek dit doen, ek gaan nou klomp geld spandeer en wil als doen om die motor heel te hou vir jaáaaaare. Ons hou van uitdaging in die natuur so ek wil nie deur my pa se fortuner rond gesleep wor omdat my patrol se engine nie hou nie
Ek het nou al die hulp nodig wat ek kan kry
Dankie vir als so ver!

as said earlier ..... head gasket, use genuine Nissan!!!
Check sleeve protrusion ( if the ZD 30 has sleeves ) this is VERY important!!!