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  3. Rumcajs

    ZD30DD diesel pump

    Sorry to hear about that. To answer your questions: 1. No the extra lift pump will be/should be installed before the fuel filter cause they're better to "push" the fuel than pull, it that is their primary design..... 2. Yes spill/leak off pipe returns excess fuel back to fuel tank or back to suction side of the IP side, depends on the design chosen. Nissan Patrol ZD30 implementation is to return the spill line to the suction side of the IP pump cause inbuilt vane lift pump( which is itself dreadful design cause it requires higher RPM to increase the flow rate) Thats why We have to re- route it to return to overflow side of IP fuel return line when using external lift pump to pressurize what was suction line which would ruin the spill line workings. The good old design is to return spill line to fuel tank, it improves fuel cooling as well, unless you are in Arctics or similar very environments where it will help heating/warming of the fuel. In hot climates it is a disaster to have. Some designs out there have thermostatic valve which depending on ambient temps re-routes fuel flow from spill line either back to fuel tank (hot day)or back to fuel filter suction line(cold day). Sadly not on Ni$$ans LOL. Be vary that Carter 4600/4601 lift pumps installations require to have as a safety measure bypass built in in case of the pump failure or blockage as fuel starvation will result in IP failure again. Regards
  4. RENATO FERNANDEZ

    ZD30DD diesel pump

    Well, the problem turned out to be the pump and I dropped the van off at a recommended reliable diesel mechanic (remember, small island in the West Indies!!). He said it's a common issue with this vehicle and others that carry the same pump and the major culprit is poor quality fuel (I was told by a friend working in the island's petroleum distribution company that we do not receive or refine "Diesel" as such. He says we are supplied with GAS OIL, not white diesel). The mechanic had at least 3 Mitsubishi L300 vans, along with Nissan Frontiers and a couple more Caravans so it's not me alone with this suffering. I did some checking on the forum about the Carter 4600 pump and I think that I understand fully what it actually does, providing an ample supply of pressurized fuel to the diesel pump so that the diesel pump itself is not under strain to pull fuel all the way from the tank so I'll look into that. Problem is, with the tight spaces, will I find room to install this lift pump inside the tight confines of this panel van? Other questions...(Please be gentle. I have 0 knowledge of the build of this engine) 1/. Is this lift pump installed after the fuel filter? I would assume "YES" to avoid additional strain on the diesel pump to pull fuel through the filter. 2/. What is the purpose of the spill/injector leak pipe? Does this allow excess fuel sent to the injectors to flow back to the tank?
  5. rod1169

    dawes valve

  6. Hi every one been having problem with my ZD30 2001 patrol. engine light coming on other time nothing . but also having power loss. it did stall and when i restarted it it ran like shit shut it down straight away let it sit. restarted and seamed fine but notice the engine like coming on every now and then when i start the car. other time nothing. then it has been coming on after driving for a while at a lose can =any one help thanks for your time all the best
  7. rod1169

    dawes valve

    Get it to dyno tune mate let them fix it best way to go
  8. Rumcajs

    Td42 Diesel pump modification

    The injection pump is not a build for back yarder for sure.... As for the turbo, "how long is a piece of string?" You will have to search what is avail in Bolivia. Usual suspects like Garret, Switzer, perhaps KKK or Holset make something you could use. The thing with non turbo injection pump working correctly with the specific turbo is another matter. Regards
  9. Rumcajs

    Cabin Filter

    Those filters are available from Ni$$an stealers, you can also chase ones from Mann and other aftermarket suppliers. Regards
  10. Paul

    Cabin Filter

    I took the glove box out and the filter slot was closed see photo. Its a two part filter that clips together then slids in. I just wanted to no were to buy the right filter for it. Ill problem go to Nissan spare parts if i have no luck here but there so expensive.
  11. trevzd30

    ZD30DD diesel pump

    While it is probably your injector pump like previously said, I had a similar experience with my zd30 many years ago which turned out to be a faulty crank angle sensor. Once replaced it sprung back into life. Sent from my SM-G965F using Tapatalk
  12. trevzd30

    Cabin Filter

    Mate my 2016 patrol definitely has one. I'd be surprised if yours wasn't factory fitted, therefore you can get genuine ones or after market ones at any good auto parts store Sent from my SM-G965F using Tapatalk
  13. Paul

    Cabin Filter

    Does any no the were i can get a cabin filter for a gu 2015 patrol, i no it didnt come out with one but you can cut the section out of the air box to make one fit. Just need to no which one it would be. cheers paul
  14. Sometimes its easier to say something with a video.....
  15. mike.binggeli

    Td42 Diesel pump modification

    Good day mates. I'm new to the forum and wanna thank you for the great discussions that are already out. My truck is a 93 model LWB TD42 silver top. I'm thinking about upgrading the engine with a turbo. I read that, to get more power out of it I would have to upgrade the pump as well. So my question is, if I have to buy a 2k+ 12mm pump or if there is a way to get this done like some kind of backyard job. Just changing distributor head or is there more work involved? My second question is: what Turbo can I use? I have to explain that I live in Bolivia and good Quality 3rd Party Products are nearly not available and/ore not affordable. I would have to seach a used Turbo and adapt it to de td42. What could you suggest? The good thing however is that I don't have to worry about laws and regulations. It just has to work. ;-) I appreciate your help. Cheers Michael Gesendet von meinem BLA-L29 mit Tapatalk
  16. so i found this car for 4k its done 264km and the guy says its in perfect condition the description is "very clean new springs shackles all rubbers replaced newcarby kit Installed new tires 31 Mickey Thompson’s on new rims new front brake pads. This Ute is a very clean specimen of a Nissan no rust in cab or Chassis very straight Will come with roadworthy . just fitted with New swaybar rubbers and steering dampener" im gonna go take a look at it very soon i wanna know what i should pay attention to while driving it or inspecting it or any advice or opinion is welcomed. said he used it to put bikes not it for riding hes a mechanic and said he has done service every 5000
  17. so i found this car for 4k its done 264km and the guy says its in perfect condition the description is "very clean new springs shackles all rubbers replaced newcarby kit Installed new tires 31 Mickey Thompson’s on new rims new front brake pads. This Ute is a very clean specimen of a Nissan no rust in cab or Chassis very straight Will come with roadworthy . just fitted with New swaybar rubbers and steering dampener" im gonna go take a look at it very soon i wanna know what i should pay attention to while driving it or inspecting it or any advice or opinion is welcomed. said he used it to put bikes not it for riding hes a mechanic and said he has done service every 5000
  18. It means tolerances given for each block and crank combination. You will need specs for each to understand the sizes. Something like bellow Regards
  19. Can anyone please reply to this post above urgent Cheers
  20. Hi All Need to know what does STD1 - STD2 - STD3 - STD4 - STD0 stand for in Main Bearings for the popular rd28eti? Patrol Brg Data Selection Chart.pdf
  21. Rumcajs

    ZD30DD diesel pump

    G'day, The only servicing required is good quality fuel and regular fuel filter replacement (more often then service intervals from Nissan due to poor quality fuel). Some people try additives in the fuel like diesel treatment types ( I'm not sure what is available in your area) which can be helpfull when quality of diesel is low. I use here in Australia Chemtec Diesel Power I also add two stroke mineral oil in ratio 1:200 (or multiply liters of fuel added to tank by 5 to get the amount of oil to ad in ml) because older Diesel fuel injection system don't handle low sulphur diesel fuel that well so extra lubricity doesn't hurt. As for legality of that thats another matter. So in your case finding additive for low quality/ bad fuel could perhaps be beneficial. There is also a modification to add external electrical fuel lift pump to ensure fuel starvation will never occur because that is one of the main killers of those pumps but there is a modification needed to be done to spill/ injector leak off pipe otherwise the engine will be pumped full of fuel. This apply to Nissan Patrol so I'm not sure how is fuel return from injectors leak off or spill line routed in your vehicle. External lift pump like Carter 4600 series or Walbro 13-2 or better abble to supply up to 12 psi head pressure will improive things greatly but it does require you to understand thing or two about fuel supply on ZD30 and routing of fuel lines/ The injector pump has its own lift supply pump built in but it is hopelessly inadequate especialy at low RPM so bonus is when fitting external supply pump is a slight gain in low down RPM power increase. In that case injectors spill lines is connected straight to suction side of the pump port which means it needs to be connected changed to return line to fuel tank. Regards
  22. RENATO FERNANDEZ

    ZD30DD diesel pump

    Hi Rumcajs, thanks for all your input. I'm prepared for the worst scenario now that you've explained everything in detail. One other thing, in the event that the Gods have smiled on me and it's not the pump but a simple electrical issue, what precautions can I take to prevent this from happening again? Can these pumps be serviced by a qualified technician to keep them operational despite the quality of fuel I have to deal with locally?
  23. Rumcajs

    ZD30DD diesel pump

    Having said all that, checking if all electrical connections to the pump and grounds are good first would be a good start.
  24. Rumcajs

    ZD30DD diesel pump

    Ok, Yours what I suspected, conventional mechanical diesel injection system. Injection pump is Zexel/Bosch VP44 radial pump and what I posted earlier applies. Dreadfull device it is. The link you posted to Ebay is not applicable to your car then. Your mechanic will need to connect special scanner from Bosch directly to pump ECU to read/diagnose the codes which will narrow it down but prognosis is not good. These pumps have fatal flaws and will fail suddenly and without any warnings. If one of the sensors fails for example the entire assembly of sensors and actuators will need to be replaced. Most common failure is actually that inbuilt ECU where its internal circutry is subject to failure due to mostly overheating cause either fuel supply is restricted/compromised. Search "Bosch VP44" isuess your will see.... Those things are ticking time bombs..... Regards
  25. RENATO FERNANDEZ

    ZD30DD diesel pump

    ZD30DD.pdf This is from a service manual I purchased online. This is the engine in question. Your picture look a little different.
  26. Rumcajs

    ZD30DD diesel pump

    You will need to clarify which version of the ZD30 engine fuel injection is in yours. There are two types with completely different systems and different operation so giving you any advice is conditional upon that clarification. Regards
  27. RENATO FERNANDEZ

    ZD30DD diesel pump

    The vehicle is a Nissan Caravan E25 panel van and I think it's 2006 and I purchased it second hand 4 1/2 years ago. No major problems really but had a big scare a year and a half ago with a cracked cylinder head gasket. I ended up on this forum because of a Google search and I believe the engine is the same. Because the engine is hard to access, I am not sure if it's the identical engine to the picture you posted. Sorry.
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