Apologies for the length of this one.
My engine developed a tapping noise month ago and after trawling here, I deduced it was worn hydraulic lifters having flushed the engine and used thicker diesel oil to no avail.
Into the fixers it went, heads off, new lifters, cam checked for wear, new timing chain, refitted a pair of spare heads which had been skimmed and pressure checked, new gaskets all round, back to me it came mended. It still ticked but I was told the new lifters needed a good run at a couple of 1000 rpm to bleed.
Last week noticed the water temperature was rising above normal and that the lpg guage was showing green lights and the bright orange light (Prins multi point system, it should be either/or). By the time I could pull over, the temp was in the red and the warning light was on, distance of half a mile tops.
Ignition off, bonnet up, smelt really hot with water vapour residue everywhere. While I waited for it to cool, I noticed the cowling over the viscous fan had not been fitted properly and there was a groove cut in it. Deduced it had dropped down, slowed the fan right down and caused the overheat. Cured that and everything was fine for a day.
On the way into work, the temp guage went sligtly above normal, but nowhere neqar the red, but that was it, lpg showed normal lights. Parked up and later noticed a pool of fluid under the car. Checked the coolant level, it was down, put in more coolant and tightened down the cap. Drove home, car overheated, gas guage went daft again, pulled over, no sign of the cowling fouling. Waited for it to cool down and recovered it to the garage.
The garage checked and found the thermostat was broke, changed it and everything is back to normal. The temp stays normal, the lpg changes over when it should. All is well.
However, I noticed today that the coolant level is down again and when I took the coolant cap off, there is distinct smell of gas.
When it overheated, have I melted something in the lpg system that is now pressuring the coolant level and dumping coolant. There is no oil in the water or vicky verky and all the spark plugs appear normal, so I don't think its head gasket or liner slippage, or, I bloody well hope not 120 miles since having the heads off and the big bill that entailed.
Anyone got any ideas. I've run it on petrol and the coolant level seems to stay the same, but on gas it drops. how does gas get into the coolant as I thought my 10 bolt heads didn't have cooling channels in them?
As ever, any advice is appreciated.
My engine developed a tapping noise month ago and after trawling here, I deduced it was worn hydraulic lifters having flushed the engine and used thicker diesel oil to no avail.
Into the fixers it went, heads off, new lifters, cam checked for wear, new timing chain, refitted a pair of spare heads which had been skimmed and pressure checked, new gaskets all round, back to me it came mended. It still ticked but I was told the new lifters needed a good run at a couple of 1000 rpm to bleed.
Last week noticed the water temperature was rising above normal and that the lpg guage was showing green lights and the bright orange light (Prins multi point system, it should be either/or). By the time I could pull over, the temp was in the red and the warning light was on, distance of half a mile tops.
Ignition off, bonnet up, smelt really hot with water vapour residue everywhere. While I waited for it to cool, I noticed the cowling over the viscous fan had not been fitted properly and there was a groove cut in it. Deduced it had dropped down, slowed the fan right down and caused the overheat. Cured that and everything was fine for a day.
On the way into work, the temp guage went sligtly above normal, but nowhere neqar the red, but that was it, lpg showed normal lights. Parked up and later noticed a pool of fluid under the car. Checked the coolant level, it was down, put in more coolant and tightened down the cap. Drove home, car overheated, gas guage went daft again, pulled over, no sign of the cowling fouling. Waited for it to cool down and recovered it to the garage.
The garage checked and found the thermostat was broke, changed it and everything is back to normal. The temp stays normal, the lpg changes over when it should. All is well.
However, I noticed today that the coolant level is down again and when I took the coolant cap off, there is distinct smell of gas.
When it overheated, have I melted something in the lpg system that is now pressuring the coolant level and dumping coolant. There is no oil in the water or vicky verky and all the spark plugs appear normal, so I don't think its head gasket or liner slippage, or, I bloody well hope not 120 miles since having the heads off and the big bill that entailed.
Anyone got any ideas. I've run it on petrol and the coolant level seems to stay the same, but on gas it drops. how does gas get into the coolant as I thought my 10 bolt heads didn't have cooling channels in them?
As ever, any advice is appreciated.
