Hi all,
I am just looking at checking the valve clearances and to change the upper timing chain on my Diesel 2006 NP Pajero, and was hoping to ask a few rookie questions to gather some further information and be prepared for getting into the job. So I hope you don’t mind the bombardment of questions, I am just looking to gather as much info as I can prior to the job so it goes as smoothly as possible.
I have a copy of the Hayne’s manual as well as some digital content to go along with it. So if there are any other good sources of information please feel free to let me know!
My main questions were, how often do people check their valve clearances. I have heard the manufactures guide is 45,000km while a mechanic I have used who has worked on these engines multiple times as well as the Haynes manual recommend every 10,000km. I’m happy to do preventative maintenance but would be great to get an idea on how often you all have been checking yours.
Secondly, when re-installing the rocker cover. Is there an actual gasket or is there just a bit of gasket sealant you use to re-seal the cover, and is it recommended to change the seals on the valve cover mounting bolts each time? As I have been quoted around the $130 for a kit from Burson’s which include both gasket and bolt seals however not sure if this is overkill replacing every time, especially if checking every 10,000km.
With regards to the upper timing chain guide. I have read varying things on having to reset the tension on the chain when replacing. From what I can see in the photos, it simply looks to unscrew, and be replaced. Is this the case, or is there a reason when replacing this you must re-tension the chain?
Finally, while I have a good selection of tools. Are there any special or unique tools for these jobs that would make life easy or be wise to have in the kit?
Info on car:
81,000km on the clock
3.2L Diesel NP – 4M41 Engine
Unsure when last valve clearance would have been done. Most likely inline with manufactures recommendations as previous owner was very meticulous.
Cheers in advance!
I am just looking at checking the valve clearances and to change the upper timing chain on my Diesel 2006 NP Pajero, and was hoping to ask a few rookie questions to gather some further information and be prepared for getting into the job. So I hope you don’t mind the bombardment of questions, I am just looking to gather as much info as I can prior to the job so it goes as smoothly as possible.
I have a copy of the Hayne’s manual as well as some digital content to go along with it. So if there are any other good sources of information please feel free to let me know!
My main questions were, how often do people check their valve clearances. I have heard the manufactures guide is 45,000km while a mechanic I have used who has worked on these engines multiple times as well as the Haynes manual recommend every 10,000km. I’m happy to do preventative maintenance but would be great to get an idea on how often you all have been checking yours.
Secondly, when re-installing the rocker cover. Is there an actual gasket or is there just a bit of gasket sealant you use to re-seal the cover, and is it recommended to change the seals on the valve cover mounting bolts each time? As I have been quoted around the $130 for a kit from Burson’s which include both gasket and bolt seals however not sure if this is overkill replacing every time, especially if checking every 10,000km.
With regards to the upper timing chain guide. I have read varying things on having to reset the tension on the chain when replacing. From what I can see in the photos, it simply looks to unscrew, and be replaced. Is this the case, or is there a reason when replacing this you must re-tension the chain?
Finally, while I have a good selection of tools. Are there any special or unique tools for these jobs that would make life easy or be wise to have in the kit?
Info on car:
81,000km on the clock
3.2L Diesel NP – 4M41 Engine
Unsure when last valve clearance would have been done. Most likely inline with manufactures recommendations as previous owner was very meticulous.
Cheers in advance!
Comment