ZD30 Survey

Submitted: Friday, Mar 02, 2007 at 08:35
ThreadID: 42842 Views:3251 Replies:7 FollowUps:17
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If you are on this list could you please PM me re ZD30 issues. I am hoping I can get a resolutiion to this issue, but to do so we need facts.

Daggs.
Blown_zd30-------------------------- 244K
Roly.
AJB------------------------------------196K
Pud & Barb--------------------------165K
Bulla. (daughters car)
Yakodi--------------------------------130K
Plugger.
JR -------------------------------------130K
Mike.
B & M. -------------------------------126K
Emackj--------------------------------157K
Fourstall2000-------------------------118K
Donald A-------------------------------50K 2004 STL
Jorgejhandal-----------------------------------2004
Old Johno---------------------------------------2000
Ron 2006-------------------------------152K
BushMark-----------------------------109K---2001
Ted--------------------------------------170K---2000
Piggy------------------------------------106K---2001

Cheers

Back Expand Un-Read 0 Moderator

Reply By: Truckster (Vic) - Friday, Mar 02, 2007 at 08:41

Friday, Mar 02, 2007 at 08:41
my club pres's car few weeks ago in Geelong.
No idea of KLMS, but 100-150k probably.

PS. Put Rolys down for twice.. the replacement engine went poop on the new owner.
AnswerID: 224873

Follow Up By: David from David and Justine Olsen's 4WD Tag-Along - Friday, Mar 02, 2007 at 08:48

Friday, Mar 02, 2007 at 08:48
Cheers

I need these people to contact me personally directly or I need them to go to

www.djolsen.com/nissanpatrolsurvey.doc

download the survey and email it to me.

The internet forums are not seen as factual. We need facts to succeed in this. Hence direct contact

I don't want to start another thread of he said she said, just would like as many people who have personally experienced failures to contact me

Cheers
David
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Follow Up By: Truckster (Vic) - Friday, Mar 02, 2007 at 09:08

Friday, Mar 02, 2007 at 09:08
You hope to get a resolution - what exactly do you hope to have happen?
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Follow Up By: Leroy - Friday, Mar 02, 2007 at 09:10

Friday, Mar 02, 2007 at 09:10
It only went poop because the engine ingested part of the turbo!

Leroy
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Follow Up By: David from David and Justine Olsen's 4WD Tag-Along - Friday, Mar 02, 2007 at 09:15

Friday, Mar 02, 2007 at 09:15
I hope to gathering facts, not heresay. I hope to use these facts to establish a clear mode of failure for the ZD30. I hope to take this to certain experts and eventually to Nissan.

Whatever the resolution I and others hope for, it has to start with the facts.
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Follow Up By: Truckster (Vic) - Friday, Mar 02, 2007 at 09:43

Friday, Mar 02, 2007 at 09:43
wasnt it the second turbo too?! or was that gearbox, or second....
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Follow Up By: Leroy - Friday, Mar 02, 2007 at 13:07

Friday, Mar 02, 2007 at 13:07
2 g'boxes ring a bell. But I think there may of been a second Turbo. To lazy to do a search on Overlander forum.

Leroy
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Reply By: Leroy - Friday, Mar 02, 2007 at 09:19

Friday, Mar 02, 2007 at 09:19
I don't know what you expect to achieve. Do a search on for post's by scottcamp as he did some extensive research into the 3.0l issues.
And as for getting a resolution the issue, what issue inparticular? Nissan aren't going to do an engine recall now as the GUII's are getting old. And as far as dealing with nissan on warranty matters it's like hitting your head against a brick wall!

Leroy
AnswerID: 224880

Follow Up By: David from David and Justine Olsen's 4WD Tag-Along - Friday, Mar 02, 2007 at 09:40

Friday, Mar 02, 2007 at 09:40
Let's just see what can be a acheived once we have the facts. I am aware of scottcamps posts, I've been following this for ages. I don't agree with his analysis of root cause but I have access to some tools that will allow me to determine more accurately the root cause. Scottcamp may well be correct, but I need the data. ie the facts about each vehicle.

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Follow Up By: David from David and Justine Olsen's 4WD Tag-Along - Friday, Mar 02, 2007 at 09:43

Friday, Mar 02, 2007 at 09:43
As I said in a previous post some months ago, gathering comments in a forum as scotcamp did, while it does gather information, the information is not verifiable. Neither Nissan or anyone else will accept it. I beleive we need to start with the verifiable facts in writing. Not comments on a forum.

Just go with me here guys, humour me. If the people who have had failures, respond via my survey, I promise I will do everything I can to get a resolution. It can't do any harm. So can I ask that we don;t make this a long thread about the issue. Can I ask that those who have had a failure complete the survey?

David
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Follow Up By: jorgejhandal - Friday, Mar 02, 2007 at 11:05

Friday, Mar 02, 2007 at 11:05
david do I need to fill you out the survey again( you haveme posted theonly thing add if I didnt specify it blew 70K
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Follow Up By: David from David and Justine Olsen's 4WD Tag-Along - Friday, Mar 02, 2007 at 13:00

Friday, Mar 02, 2007 at 13:00
Jorge

If you have already sent it, I will record 70K on the survey
So no need to send again

David
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Follow Up By: David from David and Justine Olsen's 4WD Tag-Along - Friday, Mar 02, 2007 at 13:06

Friday, Mar 02, 2007 at 13:06
Jorge

I haven't received anything from you. Could you please download this www.djolsen.com/nissanpatrolsurvey.doc and email to me. admin(at)djolsen.com

David
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Follow Up By: Willem - Saturday, Mar 03, 2007 at 07:51

Saturday, Mar 03, 2007 at 07:51
I recall that scottcamp was doing his research in England/Europe where there seems to be an issue as well.
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Follow Up By: brad1972 - Saturday, Mar 03, 2007 at 13:28

Saturday, Mar 03, 2007 at 13:28
why are you guys bagging this bloke out for trying to do something, laying down and taking one for the team will only strengthen Nissan's resolve that they are exempt from repairing their vehicles defects.
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Follow Up By: Willem - Saturday, Mar 03, 2007 at 13:42

Saturday, Mar 03, 2007 at 13:42
brad1972

Which guys are bagging? Be more specific. If you are aiming at Leroy him/herself then say so. No one else in this thread has bagged David.
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Follow Up By: brad1972 - Saturday, Mar 03, 2007 at 20:40

Saturday, Mar 03, 2007 at 20:40
Leroy appears to have the attitude that nothing can be done so why bother.Instead of comments such as "I don't know what you expect to achieve." try something a bit more positive it seems Leroy has decided that Nissan is in the too hard basket, so lets not bother about it.If I p&ssed all the rest of you off then I'm sorry
Brad
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Follow Up By: David from David and Justine Olsen's 4WD Tag-Along - Sunday, Mar 04, 2007 at 05:50

Sunday, Mar 04, 2007 at 05:50
I think Leroy has a healthy sense of cynicism when it comes to car manufacturers but thanks for all the support.
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Reply By: PhilZD30Patrol - Friday, Mar 02, 2007 at 11:18

Friday, Mar 02, 2007 at 11:18
Hi David

just a note of encouragement and thanks for taking the lead on the ZD30 engine failure issue.

I own a 2001 3.0 litre TD Patrol which I have found to be very reliable and a joy to own. it now has about 134,000 kms on the clock.

I wondered about the other issues, like rear wheels falling off and premature failure of the turbo, or do you what to focus on the "hole in piston" problem only?

Please keep us informed and please ignore those negative critics who seem to get a great deal of weird pleasure out of the mis-fortune of others. These critics who make untruthful claims like "most 2000 model 3ltr TD Patrols failed by 100,000 kms" have not done any of us any favours and probably cost us heaps in resale value and caused much unhappiness and anxiety.

Cheers
Phil
AnswerID: 224894

Reply By: Member - Captain (WA) - Friday, Mar 02, 2007 at 11:54

Friday, Mar 02, 2007 at 11:54
Hi David,

Good to see someone trying to get a full list together, but its a pity you don't have access to Nissan's database as I am sure all the failures and reasons are already logged. May be worth trying a FOI request to get Nissan's raw data?

I have been following this issue and have drawn my own conclusions as to whats happening here. Most (but not all) of the failures have been holed pistons on 3 and 4 cylinder. Now I don't think its any coincidence that the EGR inlet is directly opposite these two cylinders.

At cruise speeds (high revs but relatively low throttle openings) the turbo vanes "close" and boost is reduced to a few psi only. Additionally, the EGR valve opens fully. This allows hot exhaust gas to dilute the incoming cold air and lower the available oxygen. Now with less oxygen there is less nitrous oxides formed and thus the engine has low NOx emissions.

However, this also has the result of increasing the diesel to oxygen ratio which increases combustion temps (a diesel has higher combustion temps when rich, unlike a petrol that has higher temps when lean). This means that at cruise speeds, engine combustion temps rise.

Now add in a faulty MAF sensor and the ECU no longer knows how much air is going in, so it defaults to a preprogrammed volume for engine revs. Thus it is easy for excess diesel to be injected, increasing combustion temps even higher (very hot day - low air density, restricted air filter etc... is normally taken into account by the MAF).

Now the above scenario means that those vehicles doing long distance travel in warmer weather while being driven gently are at a higher risk than "city" driving where throttle opening is being constantly varied. It also explains why we hear of well maintained vehicles with gentle drivers going bang, especially if towing.

While it does not explain all cases, it does show one way these early series II engines could have trouble. It also offers an explanation as to why Nissan did a recall for an increase in sump volume (shorter dipstick!), more oil = cooler oil = cooler pistons from oil sprays. And it does explain why pistons are holed while the rest of the engine seems relatively undamaged (no bore scoring etc...). And it explains why Nissan have changed the pistons in latter models to ones that withstand higher temps better.

Anyway, the above is just a theory - NOT FACT - for the series II failures based on many web reports I have seen over the years. While I am sure there are other reasons for individual failures, the above accounts for the bulk of failures I have read about. And it shows how to minimise the chance happening if you do own a series II - get an EGT gauge and monitor your exhaust temps.

Cheers

Captain
AnswerID: 224904

Reply By: whyallacookie - Friday, Mar 02, 2007 at 16:32

Friday, Mar 02, 2007 at 16:32
Good on you for DOING SOMETHING about it. Doesn't effect me other than I like the Patrol and one day may buy one used. (And hopefully with the issue fully sorted)

It is time for those that have had the problems to speak up and help you help them.

It's time for the rest to go make a coffee or whatever and stop criticising someone for doing something.

Good luck.
AnswerID: 224934

Reply By: Martyn (WA) - Saturday, Mar 03, 2007 at 10:53

Saturday, Mar 03, 2007 at 10:53
David,
I've got a 2000 model 3.0 TD 156k on the clock, no engine problems apart from a stupid oil leak which caused me to strip the front of the motor off to fix, all done now no problems, all going strong so far. This oil leak is quite common around the plug on the right hand side of the sump, Nissan told me it was the plug leakiing during the warranty period it wasn't it was the joint between the sump and the engine, what a nightmare. Have to admit I used Toyota silicon sealent, hasn't leaked to date and I've done a couple of hard ish trips. Can I be of help with the survey?
Keep the shiny side up

Lifetime Member
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AnswerID: 225053

Follow Up By: David from David and Justine Olsen's 4WD Tag-Along - Sunday, Mar 04, 2007 at 05:47

Sunday, Mar 04, 2007 at 05:47
Thanks fr your offer. No help required at this stage, but I'll keep your offer in mind.

Cheers

David
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Reply By: pete - Saturday, Mar 03, 2007 at 21:30

Saturday, Mar 03, 2007 at 21:30
And don't forgot the people like me who bought one of these partly based on recommendations from so called 4x4 journo experts at the time thinking that this should be a long term vehicle. On hearing of problems I then decided to sell - at a cost. Back to a good old troopcarrier.
AnswerID: 225136

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