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Revhead Kev Profile
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Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 5357
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Re: **Loose intake butterfly screws**


Loss of power and low compression could also be a cat degeneration symptom.

I'd suggest pulling the plugs to see if they have been closed as Jalal suggests then remove the O2 sensor and inspect the cat converter for damage.

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Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
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Date Registered: 05-2013
TOTAL POSTS: 5
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Re: **Loose intake butterfly screws**


We have now confirmed that cylinders 1 and 4 are down, with No.4 down the most. The rocker cover has been removed and valve clearances checked. No.4 exhaust valve has no clearance. Carried out cylinder leak test and exhaust valve is leaking.
Should this happen with an X-Trail that has only done 60,000km from new and would we have any luck with getting Nissan to help with the repairs?
14/Jun/2013, 7:17 pm Link to this post Send Email PM   Send Private Message Blog
 
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29051
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Re: **Loose intake butterfly screws**


That's bad news indeed and I doubt Nissan will do anything about it.

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Date Registered: 08-2012
Location: Blue Mountains NSW
TOTAL POSTS: 169
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Check the catalytic convertor (remove the O2 sensor) and open up the intake manifold to see what exactly has happened whether it's a loose screw or catalytic convertor breakdown. Doesn't sound good though. You might be able to source a new cylinder head if the damage is contained in the head, or replace the valves and seats if the damage is limited but if the cylinder walls are scored from the damage then forget it and it's time for a new motor or car.

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Ben
Hazelbrook, Blue Mountains NSW
2002 T30 Ti Dark Blue Mica
15/Jun/2013, 12:21 am Link to this post Send Email PM   Send Private Message Blog
 
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Date Registered: 02-2014
Location: Alberta, Canada
TOTAL POSTS: 14
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Re: **Loose intake butterfly screws**


I'll be doing the DIY fix for this if and when we get a reasonable warm afternoon here in the near future...

I see that all recommendations are for using "standard" red loctite (271). Wouldn't high temp red (272) be better for this application? Or is the added temperature range not worth it?

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Tony 2005 Base AWD manual 2.5
Stock with 215/70R16
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Date Registered: 11-2013
TOTAL POSTS: 24
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Re: **Loose intake butterfly screws**


Hi. Apologies if the answer is already in the forum. This problem with the butterfly screws coming loose, was an Australian recall done?. Did it effect Australian models? Mine is a 2006 model with 160,000KMs. Thanks

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2006 T30 ST- Extreme auto
11/Mar/2014, 10:56 am Link to this post Send Email PM   Send Private Message Blog
 
Revhead Kev Profile
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Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 5357
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Re: **Loose intake butterfly screws**


Yes it affected Australian models of the T30 and No recall was done. Nissan Australia don't want to recognise it as a problem.

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Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
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11/Mar/2014, 11:04 am Link to this post Send Email PM   Send Private Message Blog
 
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Date Registered: 11-2013
TOTAL POSTS: 24
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Re: **Loose intake butterfly screws**


quote:

Revhead Kev wrote:

Yes it affected Australian models of the T30 and No recall was done. Nissan Australia don't want to recognise it as a problem.



Bugger. So what's the general consensus - is this a must do mod or at 160k am I likely to be out of the woods? Does any one know just how many T30's were affected in Australia. Hate to be sitting on a time bomb!

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2006 T30 ST- Extreme auto
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29051
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It's your call mate. You have to weigh-up your options and how long you intend to keep the car for as well as your driving habbits. If you like to hit high RPMs and/or tow something heavy which requires the car to be in high RPMs for a prolonged period of time, then you might as well spend a bit of money and be on the safe side rather than risk turning your car into a piece of metal with a dead engine.

You need to know that once this fault happens and these little screws get sucked into the engine, there is no turning back and your engine will be dead! No amount of fixing or rebuilds will help the car to ever run the same again.

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Date Registered: 11-2013
TOTAL POSTS: 24
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Re: Re:


quote:

jalalski wrote:

It's your call mate. You have to weigh-up your options and how long you intend to keep the car for as well as your driving habbits. If you like to hit high RPMs and/or tow something heavy which requires the car to be in high RPMs for a prolonged period of time, then you might as well spend a bit of money and be on the safe side rather than risk turning your car into a piece of metal with a dead engine.

You need to know that once this fault happens and these little screws get sucked into the engine, there is no turning back and your engine will be dead! No amount of fixing or rebuilds will help the car to ever run the same again.



No I don't rev the engine excessively but I guess its a bit of a lottery.

Would be interesting to know the stats on the percentage of vehicles that have been affected.

Cheers

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2006 T30 ST- Extreme auto
12/Mar/2014, 2:31 pm Link to this post Send Email PM   Send Private Message Blog
 


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