ML GLX-R Crankshaft etc

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ML GLX-R Crankshaft etc

Postby ozcapie on Mon Dec 03, 2018 2:48 pm

Hi all,

First post in a long long while. Sorry about length, but background info needs telling.

My '08 Manual GLX-R diesel now has 220K and was going like a dream until 24 months ago. Only non routine issue was cleaning the EGR gunk.
It suddenly shot from ave 9.0 to 9.3 L/100km to over 12 in city and about 10 to 10.5 highway only driving like a granny.
At same time my clutch had gone, replaced , but that was not issue.
EGR was cleaned again, lots of gunk.
Diagnosed at a Sydney diesel specialist company, I parted with about $500.00 with some guesses about what could fix it.
It had a noticeable roughness at 2,800 rpm, but I knew that already ,and suspicions of 'injector dripping' but quote given for injectors' replacement 'without guarantee that it sorts issue'.

About a month ago, just about when I was seriously considering booking it in for injectors, I broke down about 10km short of destination outside Canberra (coming from Sydney). Lost power and would not rev above 800 rpm. After about 15 min, several restarts, it revved up again and I drove it to customer, from there in afternoon to hotel, next morning same issue, lots of smoke and took it to a diesel specialist. DTC was 'crank angle sensor position'. After they replaced that it then showed 'cam sensor error'. They suspected 'maybe timing chain...but lets replace the cam sensor first'.
After leaving it there, a couple of weeks later they had done sensor replacement and it was fine.
Next time down there I picked it up and drove home totally fine- except for the high fuel economy. The concurred that "injectors need doing as soon as possible". However, next morning in Sydney , same issue and my OBD thingamy shows same original 'crankshaft sensor error'. Ok, maybe it is timing chain and I take it to diesel specialist referred by my mechanic who also a mate of mine.

Specialist mechanic gives very reasonable ballpark quote for chain etc and injectors at same time ...'subject to other defects'.

Today , after he has opened things up, several issues, from timing chain gear damaged through to harmonic balancer 'shredded' if I understand correctly. He can't even 'patch it up' just to get it running again without something short of a replacement engine with all the parts required from crankshaft through to chain etc.

Will have a look tomorrow, but short of dumping it I am pretty much up for paying nearly its trade in value.

Any comments/advice especially from similar experiences would be much welcomed.

Thanks so much in advance.

cheers

c
ozcapie
 
Posts: 34
Joined: Tue May 13, 2008 2:00 pm
Location: Kings Langley, NSW


 

Re: ML GLX-R Crankshaft etc

Postby ozcapie on Wed Jan 30, 2019 12:32 pm

So update on this is that I had it repaired- since it was already open and would not have been able to be bodgied back together to flog, and at same time did everything else including injectors etc.

Month later, it had been driving well, purring and back to good tank range over 700km, drove home on Monday morning about 50km mostly freeway and I had noticed that the aircon had stopped- thought it may be a fuse. Ambient temps high in sydney (high 30's) and it had been working hard, then noticed that the temp gauge was maximum (actually it doesn't catch your eye because there is no light warning) not sure how long it was like that. Pulled over, switched off and the battery too flat to start, even a roll start on slight downhill no luck. No alternator light either to put the aircon/temp/battery/waterpump puzzle together, and no hard steering either on freeway of course.
I saw that all the belts on fan pully were off.

Towie came, jump started it and onto truck. We saw that fan pulley had totally come loose (resting on bash plate) and fan sitting against radiator. The five bolts had all sheared off.Back at the repair shop now and possibly blown a head gasket too with over temp

What would cause the shearing of bolts together? Incorrect or over tightening/under tightening?
Belts all new as well as new water pump, so that wouldn't have seized.

Comments appreciated
ozcapie
 
Posts: 34
Joined: Tue May 13, 2008 2:00 pm
Location: Kings Langley, NSW

Re: ML GLX-R Crankshaft etc

Postby Maxiy on Wed Jan 30, 2019 1:07 pm

Did they check the injector pump when doing all the repair work ?
Maxiy
 
Posts: 523
Joined: Mon Aug 11, 2014 1:29 pm

Re: ML GLX-R Crankshaft etc

Postby ozcapie on Thu Jan 31, 2019 10:54 am

Not sure, I will ask, .....why?
ozcapie
 
Posts: 34
Joined: Tue May 13, 2008 2:00 pm
Location: Kings Langley, NSW

Re: ML GLX-R Crankshaft etc

Postby Maxiy on Thu Jan 31, 2019 11:25 am

i got a 'crank angle sensor position' error a few months ago, car wouldnt start, and when it did start it ran really rough, and would not rev up, (similar symptoms to what happened to you near canb)

Anyway, after many days of inspecting, they figured out that the injector pump had temporarily seized, causing the pulley to stall, and strip the balancing belt. which in turn threw the balance shaft out (hence the error code and running rough).

Anyway, may not be a contributing factor, but cant hurt to check
Maxiy
 
Posts: 523
Joined: Mon Aug 11, 2014 1:29 pm

Re: ML GLX-R Crankshaft etc

Postby ozcapie on Thu Jan 31, 2019 2:35 pm

Thanks Maxiy,

Will check with the mechanic

My harmonic balancer and crankshaft were definitely damaged, but the original cause could be something else
ozcapie
 
Posts: 34
Joined: Tue May 13, 2008 2:00 pm
Location: Kings Langley, NSW

Re: ML GLX-R Crankshaft etc

Postby ozcapie on Tue Feb 19, 2019 10:14 am

Truck is still being repaired, may go down and have a look at the work with the engine out at moment.

Just on reflecting, a couple of months prior to the initial breakdown I took it to a renowned *Sydney diesel centre* to diagnose issue.

After parting with $600.00 or thereabouts, I received a report that told me what I already 'knew' (as much as a layman could 'know'), i.e. "we don't really know other than we know it still idles rough, especially around 2,800 rpm. Here is a quote for replacing injectors ($3,600.00), but there is no guarantee that will fix the problem or improve fuel economy". What is the cliche? All responsibility but no accountability or something like that.
I had previously taken it to a Youtube famous Sydney location, the name reminding one of a character of A team, for a '1 hour diagnosis', which when I arrive apparently could take anything up to 5 hrs- i.e. "we cannot predict what we need to do, and no guarantee of an answer, but leave us a blank cheque anyway".

*similarity in the description of diesel centre with any real name may or may not be a coincidence.
ozcapie
 
Posts: 34
Joined: Tue May 13, 2008 2:00 pm
Location: Kings Langley, NSW


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