When DiD your NM/NP 3.2 Diesel injection pump needed replacing?

[sharkcaver]

What steps can Joe Bloggs take to lower the risk of pump failure ?

I'd like to get to the bottom of Lismore's claim that hard facing break up is responsible for shorting out the GE actuator. Its not what Freo diesel told me, but I also didn't specifically ask the question, cause I hadn't heard that then.

If the hard facing breakdown on the main bearing is the culprit for most pump failures, and that is attributable to dirty fuel, then there can only be one answer: finer and/or secondary filtration. To my mind, the jury is still out.

[Lance]

I'd like to get to the bottom of Lismore's claim that hard facing break up is responsible for shorting out the GE actuator. Its not what Freo diesel told me, but I also didn't specifically ask the question, cause I hadn't heard that then.

If the hard facing breakdown on the main bearing is the culprit for most pump failures, and that is attributable to dirty fuel, then there can only be one answer: finer and/or secondary filtration. To my mind, the jury is still out.

I'm about as mechanical as an empty box of teabags when it comes to Diesel stuff but if as you suggest the bearing facing is the issue would/could it be an idea to have that bearing replaced before it fails and causes further damage.
Is it a major job to replace that bearing ?
Would it be an economical step to take at say 250,000k

Remember, I said I have no idea about this stuff.......

[sharkcaver]

I'm about as mechanical as an empty box of teabags when it comes to Diesel stuff but if as you suggest the bearing facing is the issue would/could it be an idea to have that bearing replaced before it fails and causes further damage.
Is it a major job to replace that bearing ?
Would it be an economical step to take at say 250,000k

Remember, I said I have no idea about this stuff.......

Well if what Lismore says is correct, I think its a very worthy preventative maintenance spend. $1500 now or +5K with all the inconvenience later.

Trouble is, I've never heard until recently of anyone recommending this procedure. So for me, the jury is out to lunch.

[mooche]

I heard about the service of the pump from Lismore diesel from ghendo anther forum member who thought his pump had broken. As I has bought my pump from overseas I'm still in contact with the people that sold it to me and will ask if this problem is happening in Europe as well.
Mine had 315000 km when my pump went and I have only had for 7months.

[pmgraham]

Just seen this old thread, so I will post an update.

192K.

No symptoms whatsoever. Returning from spending a few hours with efeinblatt (FFS Eric, you could have picked an easier user name to spell ), I had just spent 2 hours on the road and was coming into the township of Ravensthorpe. Slowed down to 50K's (the speed limit). Coasting down the hill, foot off the accelerator, the car just stalled and was never to restart again with this pump.

No CEL, but error code 48 was logged (GE Actuator). This is the electronic fuel governor, is internal to the pump, and by all accounts means either a rebuild or new. As the cost of refurbed over here was the same as new, so I elected to go new. At least new comes with all new speed sensors fitted.

Feb 2016 - Pump alone was $4700. Repair bill in total $5550.

Pumps are getting harder to obtain as they were only used on this engine apparently, hence stocking levels and cost. I had a 7 week wait for one ex Japan. There may come a day when new becomes a non entity.

Mine died at 170 000k - makes me wonder if the clock was wound back on mine. Similar cost to repair as yours. Genuine replacement didn't take too long to get the part. Running okay now but not convinced has the same power as before but the weather has been hot and this will affect performance. Do the later models have problems with injector pumps??

[sharkcaver]

Do the later models have problems with injector pumps??

At this stage not that I'm aware of. SCV seems to be a wear item though. Being common rail, with much higher injection pressures than the gen 3, It wouldn't surprise me if they do in time. Fuel quality/filtration is ever more critical for these, but the pumps are a hell of a lot less in price.

[nifty]

340,000

No symptoms until one day would turn over fine, but just would not fire. Got it going a few times, but got worse each time.

[Poita]

Mine has just failed at 230,000km

[Trojan]

Mine has just failed at 230,000km

Sorry to hear about that mate. Good chance that I’ve got to deal with the same issue at around 290K. Hadn’t started the thing for a few weeks and now no-go.

FYI one of the repair/replacement options that I’ve found is in Adelaide. Affordable Technologies.

Let us know what you decide to do and how it went. Few mods on your truck, tough call.

[Poita]

Sorry to hear about that mate. Good chance that I’ve got to deal with the same issue at around 290K. Hadn’t started the thing for a few weeks and now no-go.

FYI one of the repair/replacement options that I’ve found is in Adelaide. Affordable Technologies.

Let us know what you decide to do and how it went. Few mods on your truck, tough call.

Hi mate,
I used them to diagnose it. A new pump is a very similar cost to a reconditioned one, so I went new. The new pumps also come with new sensors, the recon ones may or may not.

[tom-ss]

Concerns me reading all these posts of people replacing the pump at $5000+ a pop.

I had the same symptoms as reported by most people above and after being quoted up to $8000 for the replacement pump fitted (by multiple mechanics, mitsubish and a diesel pump 'specialist', who all were convinced the pump was busted), I stumbled across a thread (here or elsewhere) suggesting it could be an issue with the sensors mounted on the outside of the pump.

I bought some replacement sensors from china ($100), fitted them, and it has run like new ever since. Probably 50,000kms ago.

So please, I recommend anyone with pump issues to consider changing the sensors before committing thousands of bucks for a recon or replacement pump.

[Lance]

Do you have a link to those sensors Tom ?

[GHendo]

Concerns me reading all these posts of people replacing the pump at $5000+ a pop.

I had the same symptoms as reported by most people above and after being quoted up to $8000 for the replacement pump fitted (by multiple mechanics, mitsubish and a diesel pump 'specialist', who all were convinced the pump was busted), I stumbled across a thread (here or elsewhere) suggesting it could be an issue with the sensors mounted on the outside of the pump.

I bought some replacement sensors from china ($100), fitted them, and it has run like new ever since. Probably 50,000kms ago.

So please, I recommend anyone with pump issues to consider changing the sensors before committing thousands of bucks for a recon or replacement pump.

Tom, I agree that you certainly don’t take the word of a MM dealer before getting your pump replaced, but the truth of the matter is these pumps do all bugger up around the 300,000km. unless they are serviced earlier.

My local diesel specialist warned me to have it serviced when I got 250,000km. on the clock, at a cost of around $1,500, however it was one of those things I kept putting off and ‘gunna-do’, until the day the engine wouldn’t start and when the pump was pulled apart it was full of metal filings from the disintegrated $25 bearing – hence a $5,500 job to replace most of the pump as the filings had penetrated everywhere. The speedo read a whisker under 298,000km.

I would think that most of the engines with these pumps on them would be getting up around the 300,000km. by now and anyone who has one that hasn’t had the pump services, should attend to it pronto.

Cheers

Geoff

[b1benno]

Are ALL 3.2’s susceptible to the pump failure?
Mine has 392k right now...original pump as far as I know.
I have absolutely no symptoms (knock on wood) and previous owner was he changed fuel filter at every service, 7500kms or 6mths.

Sounds worth looking at the $1500 service to me?

[GHendo]

It's ALL 3.2 diesels that are PRE common rail. The common rail diesels have a different pump and injector setup and the pumps don't suffer from the same problems ans the earlier models.

Cheers
Geoff