PDA

View Full Version : 2012 CRD Timing chain life.



Coldcomfort
6th March 2023, 02:07 PM
Hi all, is there a end of life schedule for the timing chain on a 2012 CRD wagon?

Cheers all.

pollenface
6th March 2023, 03:38 PM
If you get a hunch and want to change it, here's a cool video


https://www.youtube.com/watch?v=6-WCDwNobq4

Coldcomfort
6th March 2023, 06:06 PM
I've watched that before. I'm not sure that I'm up to it. Also I don't want to do it unless there is a compelling reason. My truck has just passed the 250k mark and I'm just making sure that any sudden surprises are not coming my way.

mudski
7th March 2023, 10:44 AM
Does your service manual say anything about it. If anything the chain tensioner might need replacing at certain klms...

Coldcomfort
7th March 2023, 02:09 PM
Found this....

https://www.patrol4x4.com/threads/timing-chain.12448/

mudski
7th March 2023, 04:02 PM
Found this....

https://www.patrol4x4.com/threads/timing-chain.12448/

Yer I'd be leaving it alone...

jack
7th March 2023, 04:22 PM
I've got a 2012 CRD and know a Nissan Mechanic, there is no scheduled timing chain change listed. He advised to leave it alone. I aked him to check as I was doing my hoses and serpentine belt.

Alitis007
7th March 2023, 07:55 PM
Timing chains don’t have intervals at all. If your engine oil has been changed regularly and you’ve been quality oil then you shouldn’t have any problems. A customer of mine has an early di with over 350k on his zd, it has mass amounts of blow by and at one point was dieseling on it’s own fumes till I fitted a proper catch can but still no timing chain noises.

Coldcomfort
8th March 2023, 07:50 AM
Thanks guys. Thats what I was hoping the case would be. I'll be leaving it alone for sure. But I'm glad I asked.

mihit
8th March 2023, 06:21 PM
Can't speak to your specific engine, but the Mitsubishi ute I had running a timing chain was spec'd for "checking" at 300k. It was a duplex chain IIRC driving the balance shaft and cams (hydraulic tappets)

There may or may not be a spec available for your engine...generally given as a length over 10 links. But basically if you lay it out in a line and can feel any slop when you push-pull, it's poked.

By the time your chain is "making noises" it's already past-worn.
It could well go a million miles without catastrophic failure, but your timing, balance, economy etc will all be to shit.