Need some advice concerning yd25 duplex chain conversion, best I have been able to find are aussies and those fuckers are anal to say the least.
Hardcore Punk
Need some advice concerning yd25 duplex chain conversion, best I have been able to find are aussies and those fuckers are anal to say the least.
For a man is a slave to whatever has mastered him.Keep an open mind, just dont let your brains fall out.
Kruger-Dunning Parts n Service
Skylines Australia forum????Originally Posted by unstuck
Need some advice concerning yd25 duplex chain conversion, best I have been able to find are aussies and those fuckers are anal to say the least.
Every great cause begins as a movement, becomes a business, and eventually degenerates into a racket - Eric Hoffer
Hardcore Punk
Been trolling the Navara forums over there for info, but they cannot seem to agree on the advice they are throwing around. Found an agricultural thread from the uk that seems to be a little more convincing in their advice, but finding info in NZ on price and availability of parts seems to be harder than getting Ed to admit he is a drug addict.
For a man is a slave to whatever has mastered him.
Low personal B.M.E.P.
There's a pom on the Laverda Forum - Andychain - who seems to know his stuff when it comes to chain. He's solved the Laverda triple primary drive probs by supplying a duplex chain intended for a Mercedes cam drive. Replaces a triplex which is too heavy and unavailable in the right quality now.
I've got a couple of them here for customer motors, Iwis if I remember right.
He's also supplying competition cam chains for Jags and Aston Martins etc....
Pretty sure you'd find contact details on the forum - sorry, I'm crap at doing links.
Hardcore Punk
Cheers Grumph. Will have a bit of a look. I think I may end up walking away from this one because I cannot seem to get the info I need. Nissan are being very unhelpful.
Some people saying the motors have balance shafts, others saying no. Some saying have to drop the sump, others saying no. Some saying there is a sissor gear oil pump, others saying no. Cannot get the info I need from Nissan, so may be best to let A nissan dealer do the job, be the first time I have walked away from at least having a go.
For a man is a slave to whatever has mastered him.
Kruger-Dunning Parts n Service
These guys are pretty good. I don't have a skyline but my wagon has a VQ35 engine....
http://www.sau.com.au/forums/forum/7...ic-discussion/
Also try Cockram Nissan in chch, I have got parts off them no worries where as my local dealer is no good for non NZ models....
Every great cause begins as a movement, becomes a business, and eventually degenerates into a racket - Eric Hoffer
Hardcore Punk
07 Navara with a yd25ddi motor, well known for wearing lower simplex fuel pump timing chains, but local nissan dealer wants 3 1/2 grand to replace it. Can get a chain kit sent from the uk for $247 , but not really keen on tackling it without the proper info.
For a man is a slave to whatever has mastered him.
Kruger-Dunning Parts n Service
Its prob an engine out job or something. Read a thread awhile ago about a similar job someone was doing 'at home'.... Soemthing about the coolant routing, drain refill hassle etc, the usualy story of removing ten times a s much crap to get at the 'easy job'.... the Camchains also wear too despite the urban legend that they are better than cambelts (well they are but they still wear eventually)... so maybe hes budgeting on that too.07 Navara with a yd25ddi motor, well known for wearing lower simplex fuel pump timing chains, but local nissan dealer wants 3 1/2 grand to replace it. Can get a chain kit sent from the uk for $247 , but not really keen on tackling it without the proper info.
Every great cause begins as a movement, becomes a business, and eventually degenerates into a racket - Eric Hoffer
Embracing mediocrity
I'll talk to the guy at work who looked into this recently, there it a kit available ex oz to replace the single chain with a duplex, so it won't crap itself and cost 4k again. Work ute is a 2010 2.5 Navara so think its the same engine
Riding cheap crappy old bikes badly since 1987
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Forum whore
At least with chains they rattle for thousands of kms or so when tired before fucking - belts if unattended just explode! Appears to be a move back to chains in cars.
salty dog
Had balancer chain snap on saab at 140.000 kms....
Knocked a hole in casing. Got it all sorted in the end, but learned a few new swear words.
Not that keen on chains any more.
Opinions are like arseholes: Everybody has got one, but that doesn't mean you got to air it in public all the time....
Hardcore Punk
Apparently the ones in these motors have a habit of snapping, causing a $7grand rebuild. Something to do with the common rail fuel pressures putting too much strain on the simplex chain for the fuel pump. Chain for the cams is duplex, and seem to last a lot longer, but the tensioners are made from crap plastics which break down and end up being sucked into the oil screen and causing extensive damage.
For a man is a slave to whatever has mastered him.
Hardcore Punk
Probably this outfit. http://www.yd25.com.au/index.php/tim...ng-chain-fault
For a man is a slave to whatever has mastered him.
Forum whore
I thought the YD25 was pretty good, although they aren't as common as the ZD30 which has too many problems to list. I did an injector pump on one last year in a van, nasty, nasty, nasty.
In and out of jobs, running free
Waging war with society
Hardcore Punk
According to most of what I have read, the only real problems are the timing chain and tensioner issues. Simplex timing chain for the fuel pump has a life expectancy of about 75000 km, and the tensioners for the cam chain shag valves in the hydraulic tensioner fairly regularly. After market replacements have only been getting 10000-40000km before shitting themselves.
The duplex conversions from the link I posted seem to cure most of these issues, but trying to nail down availability and price seems to be a bit of a chore.
And still unsure wether or not I would have to drop the sump, or wether they have balance shafts or not. Seems to be many varying opinions from Nissan.
For a man is a slave to whatever has mastered him.
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