Not sure if I posted this on the right part of the forum but thought I would share.
My d22 ST-R 2.5 2012 model started making knocking noises when starting up cold (“cold” is relative as the lowest temp it drops here is around 20 but never heard the noise when starting it during the day) and had a belt squeal. It has 195 000 ks roughly on it. After checking out the front I found the water pump was making a noise and the knocking seemed like classic timing chain.
So I decided to order a dual timing chain from yd25 and a new oil pump from them.
After realising what a horrible job it would be to do it in the chassi I ended out pulling the engine out. Unplumbing the engine is quite simple but getting it out was a feat. I’m a diesel mechanic by trade and hats off to the people in LV trade cause what a **** job. Had to drop the front diff and steering arm.
When taking the timing cover off and disassembling the front chains I realise the knocking had come from the bottom tensioner, the oil in it was a gooey substance. I also found sticky gooey oil in the head of the engine and I think it had originated from when I bought the car from a Nissan dealership second hand I hustled them about changing the injectors and intercooler as it was blowing black smoke like nothing else. They had sealed the rocker cover injector holes with silicon of I assume poor quality or not letting it set before running because it most likely has melted and created the gooey oil.
Also found that it had put itself out of timing as I assume the chains might have been slapping when not getting the right oil feed. Corrected the timing. Put new chains on, resealed. Doing the timing chain was fairly easy.
Replaced the water pump, SCV, resealed the injectors (super easy as well). In hindsight I should have gotten a new rocker cover as I didn’t realise the rocker cover seal kit doesn’t come with them. Apparently you have to get a new rocker cover. I did end up sealing it with some quality silicone and let it set, hopefully won’t experience the same issue as before. Probably will end up getting a new cover once I financially recover from all of this.
I also ended up doing a bearing roll, changed the bearings on the main caps and big ends. No real wear on the bearings but peace of mind to have them changed while the engine was out.
Replaced clutch release bearing while the engine was out, never noticed any clutch issues but the bearing was average. Clutch was in pretty good condition.
While having the engine out I placed dynamat on the firewall, would be crazy not to while the engine is out!
Put the engine back in the car, which also a horrible experience. If this car fails again I’m burning it.
Put it all back together, new filters, new oil, new coolant. Car started, happy days!
However noticed when driving that it was absolutely gutless. I had a crank angle sensor code, turns out I had managed to damage it getting the engine out. I had failed to see the note that it has to come out to get the engine out. Don’t judge me too hard I was pretty tired and cranky ant the end of it. Explains what I was getting stuck on. It also sounded rough when started. Amazed that the car started and ran without a functioning CAS in general.
Replaced the sensor and holy crap after owning this car for so long it actually runs really well. Responsive and smooth. While the cab was pretty quiet before the dynamat definitely helped even more.
Took me a while as I have another car I’ve been using in the meantime. It was not the smoothest job as you have to drop a fair bit to be able to get the engine out. But worth the effort now when she runs so well.
Also if anyone decide to do the timing chain, get the yd25 oil pump! Having to remove the sump and moving the transmission to get the oil pump off is a nightmare and so inconvenient.
Going to run a liquid Molly engine clean with new filter and oil in case there’s any left over gunk in the galleries, cleaned the oil filter housing and cooler and that seemed quite clean.
The chains and the oil pump was the most expensive part of it as I went for double timing chains. The bearings, scv, water pump, injector and rocker cover seal kit and release bearing were all relatively cheap.
Now haters gonna hate but as I had it out I figured I’d take my time to paint it. Probably not everyone’s cup of tea.
However pretty happy with the results, hopefully she’ll be running good for a while longer now.
My d22 ST-R 2.5 2012 model started making knocking noises when starting up cold (“cold” is relative as the lowest temp it drops here is around 20 but never heard the noise when starting it during the day) and had a belt squeal. It has 195 000 ks roughly on it. After checking out the front I found the water pump was making a noise and the knocking seemed like classic timing chain.
So I decided to order a dual timing chain from yd25 and a new oil pump from them.
After realising what a horrible job it would be to do it in the chassi I ended out pulling the engine out. Unplumbing the engine is quite simple but getting it out was a feat. I’m a diesel mechanic by trade and hats off to the people in LV trade cause what a **** job. Had to drop the front diff and steering arm.
When taking the timing cover off and disassembling the front chains I realise the knocking had come from the bottom tensioner, the oil in it was a gooey substance. I also found sticky gooey oil in the head of the engine and I think it had originated from when I bought the car from a Nissan dealership second hand I hustled them about changing the injectors and intercooler as it was blowing black smoke like nothing else. They had sealed the rocker cover injector holes with silicon of I assume poor quality or not letting it set before running because it most likely has melted and created the gooey oil.
Also found that it had put itself out of timing as I assume the chains might have been slapping when not getting the right oil feed. Corrected the timing. Put new chains on, resealed. Doing the timing chain was fairly easy.
Replaced the water pump, SCV, resealed the injectors (super easy as well). In hindsight I should have gotten a new rocker cover as I didn’t realise the rocker cover seal kit doesn’t come with them. Apparently you have to get a new rocker cover. I did end up sealing it with some quality silicone and let it set, hopefully won’t experience the same issue as before. Probably will end up getting a new cover once I financially recover from all of this.
I also ended up doing a bearing roll, changed the bearings on the main caps and big ends. No real wear on the bearings but peace of mind to have them changed while the engine was out.
Replaced clutch release bearing while the engine was out, never noticed any clutch issues but the bearing was average. Clutch was in pretty good condition.
While having the engine out I placed dynamat on the firewall, would be crazy not to while the engine is out!
Put the engine back in the car, which also a horrible experience. If this car fails again I’m burning it.
Put it all back together, new filters, new oil, new coolant. Car started, happy days!
However noticed when driving that it was absolutely gutless. I had a crank angle sensor code, turns out I had managed to damage it getting the engine out. I had failed to see the note that it has to come out to get the engine out. Don’t judge me too hard I was pretty tired and cranky ant the end of it. Explains what I was getting stuck on. It also sounded rough when started. Amazed that the car started and ran without a functioning CAS in general.
Replaced the sensor and holy crap after owning this car for so long it actually runs really well. Responsive and smooth. While the cab was pretty quiet before the dynamat definitely helped even more.
Took me a while as I have another car I’ve been using in the meantime. It was not the smoothest job as you have to drop a fair bit to be able to get the engine out. But worth the effort now when she runs so well.
Also if anyone decide to do the timing chain, get the yd25 oil pump! Having to remove the sump and moving the transmission to get the oil pump off is a nightmare and so inconvenient.
Going to run a liquid Molly engine clean with new filter and oil in case there’s any left over gunk in the galleries, cleaned the oil filter housing and cooler and that seemed quite clean.
The chains and the oil pump was the most expensive part of it as I went for double timing chains. The bearings, scv, water pump, injector and rocker cover seal kit and release bearing were all relatively cheap.
Now haters gonna hate but as I had it out I figured I’d take my time to paint it. Probably not everyone’s cup of tea.
However pretty happy with the results, hopefully she’ll be running good for a while longer now.