[Builderrob]

Hi having a few problems getting around this site but sure I will get the hang of it, Like a lot of us owners of the Nissan Navarra I have had some problems resulting in the rebuild of the engine, since this I have a problem starting from cold, and when it starts there is a rattle sound which goes when run for a while, any ideas ? some pointers are to injectors but |I have had the truck tested by Nissan dealer and Electro diesel and they cant find the problem

 

[lookskyward1]

Hi Rob

Your symptoms point toward fuel starvation on start-up, to help we will need a few things cleared up.

Is it a D22 or a D40, and what age / mileage has it got?

What work has been done, who carried it out and when?

 

[Builderrob]

Hi yes does seem to be in this area it is a d22 on a 54 plate, the work carried out was full engine removal, rebuild bottom end, refit, since then it has gone to Nissan for diagnostic check they say no problem, then to Electro diesel who check the fuel system but say there is no problem I have tried pumping the fuel before starting but this makes no difference, my garage has stripped the engine front back down but the timing is perfect. It turns over fine and when it does start it smokes white smoke for a short while and has a rattle like a chain running against metal the smoking stops very quickly and the rattle stops after a short run other than this when running the unit performs as well as ever I tow large loads on trailers and a large caravan which does not seem to affect the performance in any way once the truck has started.

 

[lookskyward1]

Have the glow plugs been tested or changed?

Hopefully our D22 gurus will be along shortly.

 

[pdfisher]

who did the rebuild

 

[VKJV]

i bet its your timming chain tesioner get it checked or a streched chain this is a known problem just had mine rebuilt after it went pop the engine hadnt long been rebuilt it was a pain to start slight rattle bit of smoke then wen warm runs great till it went bang hope im wrong but better to be safe good naving

 

[wozizname]

Rob, when you say you've tried pumping up the fuel prior to starting, how was the plunger ie, was it solid or did it take a couple of pumps to go solid :?:
How long would you say you have to crank it over before it'll fire and when it fires are you sure the smoke is white and not a light grey colour :?:

 

[Guest]

Rob, when you say you've tried pumping up the fuel prior to starting, how was the plunger ie, was it solid or did it take a couple of pumps to go solid :?:
How long would you say you have to crank it over before it'll fire and when it fires are you sure the smoke is white and not a light grey colour :?:

Likewise thinking there with Mr Woz :salute:

 

[Builderrob]

seems to be a couple of pumps to go solid certainly not enough to indicate that there is a fuel leak and there is no evidence of one either yes we have checked all the glow plugs etc the timing chain tensioner seems ok to the smoke probably is light grey as opposed to white but it certainly is not black.

 

[wozizname]

seems to be a couple of pumps to go solid certainly not enough to indicate that there is a fuel leak and there is no evidence of one either yes we have checked all the glow plugs etc the timing chain tensioner seems ok to the smoke probably is light grey as opposed to white but it certainly is not black.

Hmm, checked my filter primer pump this morning and it wouldn't take even 1 pump as it was solid.
I never ever use my glow plugs to start mine, regardless of the weather to aid oil circulation prior to firing as do many others on here and it'll always fire in the first few seconds.
So I'm sure you've got a case of fuel draining back somewhere.
As you say it smokes a little I'd go for the hose connections between the pump and filter housing first.
Next check the filter priming plunger is screwed down and the securing philips head screw is tight as there could be air being drawn in past the diaphragm.
Note :!: Reference this photo
[attachment=0:rt83c4dl]Filter primer housing.jpg[/attachment:rt83c4dl]
the hose on the right feeds the pump and the left one is the tank feed, I mention this as other owners have mixed them up :!:
Perhaps the 'one way' valve in the housing is defective. You could put into place a hand bellows primer like this
[attachment=1:rt83c4dl]Handpump2.jpg[/attachment:rt83c4dl]
They only cost less than a tenner from any motor factor, have a built in one way valve and you can leave it in place if you choose, besides it makes priming the system following a filter change pi$$ easy :wink:
You can also swap it to the feed side of the filter to prevent draining back to the tank it that proves to be the fault.
Anyway, there's a few ideas, let us know how you get on :thumbright: