Rusty's GUIV-Upgrade

[Biskit]

As you have said... " if the motor is already on the way to dropping the pin, regardless of what you do, apart from a rebuild, its going to happen. How do you tell? The only way I think would be to take the head off and look, or a compression test may give an indication that something is not right." but there is a point that I have noticed mentioned on another thread is that if the O2 sensor becomes clogged or fouled, and the boost runs too high, this is the main culprit for things going bang... Is that a reasonable summation?

[rusty_nail]

As you have said... " if the motor is already on the way to dropping the pin, regardless of what you do, apart from a rebuild, its going to happen. How do you tell? The only way I think would be to take the head off and look, or a compression test may give an indication that something is not right." but there is a point that I have noticed mentioned on another thread is that if the O2 sensor becomes clogged or fouled, and the boost runs too high, this is the main culprit for things going bang... Is that a reasonable summation?

from what my mechanic told me is a combination of a failing injector pump and the maf sensor being dirty look out for nissannewby, he knows wayyy more about that rahter than me

[mudski]

As you have said... " if the motor is already on the way to dropping the pin, regardless of what you do, apart from a rebuild, its going to happen. How do you tell? The only way I think would be to take the head off and look, or a compression test may give an indication that something is not right." but there is a point that I have noticed mentioned on another thread is that if the O2 sensor becomes clogged or fouled, and the boost runs too high, this is the main culprit for things going bang... Is that a reasonable summation?

Hi boost wont kill these motors. Mine ran on 25psi boost for nearly two years. The o2 sensor your refering to. I would assume its the air flow meter, or the map sensor your meaning.

from what my mechanic told me is a combination of a failing injector pump and the maf sensor being dirty look out for nissannewby, he knows wayyy more about that rahter than me

It could be a number of things as to why it happens. Each scenario would be slightly different maybe. But from the three stripped down motors i have seen, all suffered the exact same fate. Melted pistons on 3 and 4 pots. What caused this is really unknown. But thoe cylinder temps would have been bloody high for this to happen i think.

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[bsteveo]

Just reads this entire thread, 2 hours later, I gotta hand it to not only rusty for your extraordinary patience , but everyone on here for their unconditional support. I too have recently bought a GU IV and glad to be in the right place with the right people on this forum! Yet to do nads but sorting out some other issues atm (possible oil cooler leak and need to fix my drivers door which doesnt want to lock). Great read, good stuff rusty.

[MudRunnerTD]

Just reads this entire thread, 2 hours later, I gotta hand it to not only rusty for your extraordinary patience , but everyone on here for their unconditional support. I too have recently bought a GU IV and glad to be in the right place with the right people on this forum! Yet to do nads but sorting out some other issues atm (possible oil cooler leak and need to fix my drivers door which doesnt want to lock). Great read, good stuff rusty.

Imagine the support he"d get if he was a nice bloke!!

[bsteveo]

Imagine the support he"d get if he was a nice bloke!!

He's gotta be a nice bloke, if I was in his shoes I probably would have lost my crap and burnt the car to the ground by now lol.

[bsteveo]

Imagine the support he"d get if he was a nice bloke!!

But he's right, as venting as loosing your crap is, it doesn't fix grenaded patrols!!

[rusty_nail]

does anyone know how to get the alternator out? im having trouble accessing the bottom bolts on it, is there a trick?

[mudski]

you just need to hold your tounge right Nic. Theres one bolt either side which the alternator pivots on. From memory these were a pain to remove.

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[BigRAWesty]

Yea it's 3 bolts. I found on the td undo the bottom ones first as the top will hold the weight off the bottom 2 so they undo easier..