Its funny the engine does not sound anything like the hollywood styled soundtracks. The supercharger at revs is quite a 'zinggy sound' not a Mad Max thunderous roar. It does however project an air raid siren howl forward when I am driving, absolutely howls, can be heard from 500m away easily.Originally Posted by BrazilianY60
BrazilianY60 (17th April 2025)
Still not out of the woods. I swapped over the All Terrains for my Muddies, and went for a spin. Car is still down on power when cold, hesitates, like its out of power, and the fuel pump pressure dropped to zero then rose again after a couple of seconds. The fuel chiller was off, ambient temps 34 DegC, fuel temp rose to 40 degC. Once the engine was up to around 70degC rad temp, its running sweetly. Cant put my finger on the issue, dont think its glowplug duration.
Decided to bite the bullet and power up the hydraulic circuit today to decide where the leaks were coming from and which I was going to fix myself. The major one is at one fitting into a check valve, then at the pressure relief valve, and a couple of minor leaks but all need fixing. Also, have a crazy pressure spike going on,flow to the front winch sits at 600kpa going thru the open centre valve dcv, and on the rear its sitting at 2000lpa, then drops when the valve is actuated - maybe something is stuck in the open centre spool - dunno, another ghost to chase. This may end up with a mobile hydraulics guys to sort out - its now a pig to get to the fittings as all were laid out when the body was off - big mistake.
Last edited by PeeBee; 20th April 2025 at 07:58 PM.
mudski (22nd April 2025)
OK, reckon I have finished my rough running issues. Dropped the contents of the fuel tank, about 30 litres, after dosing it with algae killer and cold weather anti gelling fluid. Fuel was a mix of dirt, water, algae whatever, it was filthy. New filter was clogged again, was running but not that healthy. Flushed it out with 4 Litres of metho to chase out the remnant water, then new filter and 40Litres of fresh stuff, left the lift pump to do its stuff for 30 mins and fired up first go. No doubt there is some residual material left in the lines and pump, will change over the filter in 500klm, and should be sorted. Hope this is the end of it, unsure if its a long term issue or a crappy batch of fuel. Engine sounds so much better and smoother.Contaminated Fuel 4.jpgContaminated Fuel 3.jpgContaminated Fuel 2.jpgGood Fuel 1.jpgContaminated fuel 1.jpg
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Cremulator (5th May 2025), mudnut (6th May 2025), mudski (6th May 2025), Plasnart (5th May 2025)
Next, moved onto the hydraulic system leaks the next day, attacked the two largest one. What a mess. Found I had missing washers and washers that were compression damaged - the ones with the rubber inner seal. Anyway, suffering the ills of not allowing for access once the body was re-installed - poor engineering - so what should have been a 15 minute job ended up into hours. The exhaust flange joints were a problem on the Madigan Line trip, once again 4 out of 6 bolted joints were loose, so swung past the bolt bar today and bought fine thread nots and bolts instead of what I could find in the bottom of the spares bag on the side of the road - expect this will sort things out. Found a protective corrugated sheath heat affected from the heat from the exhaust - so going to sheath it in high temp stuff.
Headed down to Pirtek, laid out all my dirty laundry on the counter and the tech sorted it out without a problem, bought a new mini grease gun as well. Hope to get all this back together this week. Still have an odd high pressure issue to resolve. The front winch circuit idles at 60psi and selecting the rear, it spikes to 2200psi, think the spool valve is sticking on the rear winch. Another mystery to resolve.
Last edited by PeeBee; 5th May 2025 at 09:41 AM.
mudnut (5th May 2025)
New hoses and fittings installed this arvo, need to wait a day or so for the sealant to go off on the threaded joints. Exhaust back together, but going to pull the 30mm long bolts out and replace with 45mm so I can get two nuts and a spring wash on each bolt.
Almost back to where I was 2 months ago when dirty fuel raised its head - if only I had looked there first.
What is metho and what is the technique to get rid of water? Does this thing react with water?
1997 Blue Nissan Patrol Y60 blacktop TD42 - Honey Badger (build thread)
2006 White Nissan Patrol Y61 TB45 - G-Unicorn (build thread)
1997 Red Suzuki Samurai Canvas Top SJ413 - Tatui
2005 White Toyota Landcruiser FZJ105 - Stormtrooper
Methylated Spirits, mixes with the water and converts it to a methanol of sorts which then burns readily. The flush helped to remove any remaining water which would be sitting on the base of the fuel tank. I had the vehicle tipped up towards the drain point, but the final flush still resulted in water droplets coming out.
So sorted out the hydraulic hoses and exhaust and decided to take it down and fill up the fuel tank to dilute any remaining contaminants before running for 500klm and swapping the fuel filter. Car kicked up nice and healthy, then I got 200m and it stopped again. It did fire back up but was runnng rough, coughing and spluttering, finally cleared its throat and took it for a 10klm drive and running fine, maybe still feels a bit down on power - there is one more in-line sight glass to check for clogging - I installed these when the body was off to allow monitoring of the priming function, and left them in place - now buried in the engine bay. Apart from that I am running out f ideas on what is going on. The lift pump once again did not look like it was actually priming pre engine crank, but did catch as soon as the engine started up. I am running a direct feed from battery to the IP solenoid with a fuse, and thats working, can hear the click as it is connected. I am now thinking perhaps the fuel solenoid is breaking down, and chattering regardless of the 12V supply?
Any ideas welcome.
Is there a small strainer in the injector circuit that needs a clean? I found a small water bubble covering one in my petrol EFI corolla that would make it carry on.
Last edited by mudnut; 6th May 2025 at 12:07 PM.
My advice is: not to follow my advice.
Not from what I understand Craig. The last thing I am looking at is this sightglass strainer then waiting for some super system cleaner to arrive to dose the crap out of it in case there is a strainer somewhere I cant find r the lines are clogged. Unfortunately I took the flow meters out of the circuit on the belief one had failed - otherwise I could check supply and return flows - may have to reinstall - pig of a dirty painful job.
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