Help with getting the TD42 inlet manifold off

[Joshyy]

Hi Guys,

Soo I snapped one of the studs for my inlet manifold
Which has given me the perfect opportunity to pull off the whole thing, clean it out, and replace the gasket.

Any tips or pointers?

Can you get the manifold off without draining the coolant?
Any useful tools?
How long do you think it would take?
Yes I have read the manual, and its not very detailed.... Hopefully someone here can help me out!

Its a 2006 4.2 GU DX, I have removed almost all of the EGR, so I have a little more room around it, but it looks like the rear studs might be a bit of a challenge.

Cheers,
-Josh.

[nissannewby]

There is only 3 studs the rest are bolts. A 3/8 drive ratchet with an extension will access the bolts. No need to drain coolant or anything. Remove intercooler and piping and remove manifold.

[Joshyy]

Thanks for that mate,

I'm pulling it off tomorrow morning, hopefully it all goes well!!

[Robo]

So how did ya go with it??

[Joshyy]

I got lucky!!

The inlet manifold was easy, had it off within half an hour, Didn't have drain any coolant or anything!
just had to loosen some of the fuel line bracket thingos, so quick and easy.
I used the time to remove the rest of the egr pipes as well.

The snapped bolt came right out, just undid it with my fingers! so I'm lucky! haha

new gasket and new bolts, All good! took a little longer to but it back together, but its all good now, Alot easier than I thought.

Cheers for asking man, and sorry it took me so long to reply!

[Sharky1]

Why would u have to drain coolant? A good rule of mechanics is to be observant. You must at least know that coolant flows to & from the radiator? Do you see any hoses from anywhere going to the manifold? No, so why would you need to drain the coolant?

The only reason I'm saying anything is that if you have such a limited knowledge then you prob dont understand how tight those studs need to be in the head. If you don't fit them correctly they'll work loose no matter how tight you do the nut up. What gasket did you use? Some gaskets require glue & others don't. This varies between gasket types, not vehicle make as most seem to think.

Mechanics is a 4 yr apprenticeship for a very good reason. Sorry to sound sinical but as an ex mechanic I see this crap ALL the time. It always seems so easy.

[nissannewby]

I think a mechanics apprenticeship should be a lot longer with all the "competent" ones around who have done their 4 year apprenticeship.

[Nightjar]

Josh,
While you are at it, remove and refit all your exhaust bolts with a coating of anti seize. Save you a lot of hassle down the track. Nothing like "hands on" experience to get to know your vehicle and not forgetting what you have done here, ask questions if you are unsure. No matter how experienced we think we are you can guarantee we can learn something new.

[Sharky1]

I think a mechanics apprenticeship should be a lot longer with all the "competent" ones around who have done their 4 year apprenticeship.

Yep. Even after 4yrs it takes many yrs of experience to become an expert in the field. You just can't learn it all & gain the necessary experience in a short time. And so much changes over time too. It's been 15yrs since I did it for a living & back then we only had OBD1 readers & Gas analyzers. The VT commie & AU falcon were the current models. The GU series one was also new. So much has changed & yet a lot will always remain the same. Its the principals that are most important because you can apply them to any vehicle.

Sorry if I sounded negative Josh. Good on you for having a crack at it. You have to start somewhere I guess. You did the right thing by coming here & asking questions.

What Nightjar said is good advice. It's worth the effort to refit them. Heat caused by exhaust often virtually welds components together so anti seize will make future work less of s nightmare

[Joshyy]

Why would u have to drain coolant? A good rule of mechanics is to be observant. You must at least know that coolant flows to & from the radiator? Do you see any hoses from anywhere going to the manifold? No, so why would you need to drain the coolant?

The only reason I'm saying anything is that if you have such a limited knowledge then you prob dont understand how tight those studs need to be in the head. If you don't fit them correctly they'll work loose no matter how tight you do the nut up. What gasket did you use? Some gaskets require glue & others don't. This varies between gasket types, not vehicle make as most seem to think.

Mechanics is a 4 yr apprenticeship for a very good reason. Sorry to sound sinical but as an ex mechanic I see this crap ALL the time. It always seems so easy.

...Well I asked because on another forum a guy said that he had to drain the coolant, and in the Haynes manual, it has "Refill the radiator" as step 5 when re assembling, I asked the question because looking at it the coolant hoses did not run in to the manifold anywhere, the closest it got was the EGR just before it was plumbed back in to the intake, which I had already removed. Sorry for sounding like a derp haha

And yeah I actually do know exactly how tight the studs go. I did allot of research before attempting it, and I knew all the torque settings and I used all the correct tools.

Used a genuine Nissan gasket, and some gasket sealant/glue as advised by multiple mechanics, No problems so far its been on a few weeks.
Not a complete spud, but I do understand where you are coming from, some people should not work on cars but I think I've got the basics down and I'm willing to give what I think I'm capable of a go AFTER alot of research and some advise from others. More challenging things I leave to the professionals.

And yeah.. I work in an office, No Hate! haha