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Turbo Manifold Bolts


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#1 ukcat

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Posted 07 March 2019 - 09:41 AM

Hi does anyone have any experience with removing the exhaust manifold (Turbo) - There are 10 Nuts but the clearance between some of the lower ones and the manifold is very small - Do i need some sort of special thin walled sockets or something ?? - 1 of the nuts (as far as i can see) can only be removed by using a male torx  key - This is fine as the studs are far enough back from the end of the nut but if i fitted new studs they appear to be longer with a torx head and im not sure i could re-fit the nut using a male torx key 

Any suggestions as always are very much appreciated 

Cheers

Tony



#2 SteveA

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Posted 07 March 2019 - 11:45 AM

The nuts have a hex fitting beyond the torx, just get a good ring spanner on them (13mm I think). As for the studs they thread into the block and can be screwed further in to adjust.

 

One of my studs snapped so I needed a stud removal tool and had to retap the block thread to allow the new ones to start turning in.


Edited by SteveA, 07 March 2019 - 11:50 AM.


#3 ukcat

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Posted 07 March 2019 - 12:14 PM

The nuts have a hex fitting beyond the torx, just get a good ring spanner on them (13mm I think). As for the studs they thread into the block and can be screwed further in to adjust.

 

One of my studs snapped so I needed a stud removal tool and had to retap the block thread to allow the new ones to start turning in.

Steve thanks for the info - is it actually possible to get a ring spanner onto the lower ones though  (i.e the ones below the manifold) - Also how about re fitting and torquing  them backup !!!!



#4 ukcat

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Posted 08 March 2019 - 08:25 PM

Just for info (Might help someone in the future) - You need to use a male torx drive on the manifold nuts as on some of them clearance between the nuts and the manifold is to small to allow a socket to fit on 

20190308_154052_zpsn0hjunfh.jpg

 

These studs are no good as they protrude past the end of the nut and do not allow a male torx to be be used  

20190308_154549_zpst8np9fik.jpg

 

I Used a small torque wrench, a 3/8"  T50 Male Torx drive and a 14mm hex socket 

20190308_151537_zpsg3pofmhz.jpg

20190308_154341_zpsc2g6rfnq.jpg

 

All done 

20190308_151558_zpslx00qeeu.jpg

20190308_151515_zpsbyvbjzvm.jpg

 

 

 



#5 sam220T

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Posted 09 March 2019 - 08:49 AM

WTF your engine bay from what little I can see is like factory mint. Super jealous

#6 ukcat

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Posted 09 March 2019 - 09:20 AM



WTF your engine bay from what little I can see is like factory mint. Super jealous

Cheers - Its not too bad is it -Here's another pic

20180130_142114_zpsjhz3bh1b.jpg

 

 

And not too shabby underneath either - Bit of rust on the sump plug though !!!!

20170814_140631_zpso4ghf5oh.jpg

20170814_140542_zpstensivwc.jpg



#7 Nev

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Posted 09 March 2019 - 02:57 PM

Good god, has it even been driven once it left the factory?

 

Shameful!



#8 siztenboots

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Posted 10 March 2019 - 01:30 PM

I have never had a problem with the copper colour studs , they are a different material from the z20let originals and seems to perform better. I just have some extensions and the torx socket , the copper style nuts are better too.

 

 



#9 ukcat

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Posted 10 March 2019 - 02:45 PM

I have never had a problem with the copper colour studs , they are a different material from the z20let originals and seems to perform better. I just have some extensions and the torx socket , the copper style nuts are better too.


really how did you manage to get the sockets onto the nuts. if you look at my first pic you can see the nut is really close to the manifold and no way a socket would go on

#10 ukcat

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Posted 10 March 2019 - 02:47 PM

I have never had a problem with the copper colour studs , they are a different material from the z20let originals and seems to perform better. I just have some extensions and the torx socket , the copper style nuts are better too.


right. looking at my torx sockets and the walls are quite thick maybe yours are thiner cheers for the info

#11 Nev

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Posted 10 March 2019 - 03:42 PM

 

I have never had a problem with the copper colour studs , they are a different material from the z20let originals and seems to perform better. I just have some extensions and the torx socket , the copper style nuts are better too.


right. looking at my torx sockets and the walls are quite thick maybe yours are thiner cheers for the info

 

 

You should be able to get an ordinary spanner onto most of them for the final tightening as well, it might only turn 20 degrees, but once hand lose you can do the rest with fingers.

 

How many miles has that car done?


Edited by Nev, 10 March 2019 - 03:47 PM.


#12 ukcat

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Posted 10 March 2019 - 04:46 PM

 

 

I have never had a problem with the copper colour studs , they are a different material from the z20let originals and seems to perform better. I just have some extensions and the torx socket , the copper style nuts are better too.


right. looking at my torx sockets and the walls are quite thick maybe yours are thiner cheers for the info

 

 

You should be able to get an ordinary spanner onto most of them for the final tightening as well, it might only turn 20 degrees, but once hand lose you can do the rest with fingers.

 

How many miles has that car done?

 

5K

 

 



#13 Ormes

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Posted 10 March 2019 - 05:56 PM

I thought mine was clean... that is super lovely



#14 oblomov

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Posted 11 March 2019 - 08:13 PM

 

 

 

I have never had a problem with the copper colour studs , they are a different material from the z20let originals and seems to perform better. I just have some extensions and the torx socket , the copper style nuts are better too.


right. looking at my torx sockets and the walls are quite thick maybe yours are thiner cheers for the info

 

 

You should be able to get an ordinary spanner onto most of them for the final tightening as well, it might only turn 20 degrees, but once hand lose you can do the rest with fingers.

 

How many miles has that car done?

 

5K

 

 

Member since 2007 - garage jewellery.



#15 Nev

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Posted 13 March 2019 - 08:33 PM

 

 

 

 

I have never had a problem with the copper colour studs , they are a different material from the z20let originals and seems to perform better. I just have some extensions and the torx socket , the copper style nuts are better too.


right. looking at my torx sockets and the walls are quite thick maybe yours are thiner cheers for the info

 

 

You should be able to get an ordinary spanner onto most of them for the final tightening as well, it might only turn 20 degrees, but once hand lose you can do the rest with fingers.

 

How many miles has that car done?

 

5K

 

 

Member since 2007 - garage jewellery.

 

 

Bonkerz!
 



#16 siztenboots

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Posted 14 March 2019 - 12:12 PM

I wonder if the k04 casting is slightly different then to cause clearance issues on the original



#17 ukcat

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Posted 14 March 2019 - 12:52 PM

I wonder if the k04 casting is slightly different then to cause clearance issues on the original


The manifold is original. ive not replaced it. maybe there are slight differences in them. anyway all done now just posted up as thought it may help someone i the future
cheers

#18 siztenboots

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Posted 14 March 2019 - 12:55 PM

okay , but I will use your idea of the male torx drive in future for the extra clearance , I used to use a pair of odd length short extensions to add some wobble to the ratchet drive



#19 ukcat

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Posted 14 March 2019 - 01:09 PM

okay , but I will use your idea of the male torx drive in future for the extra clearance , I used to use a pair of odd length short extensions to add some wobble to the ratchet drive

 

Ah Yeah can imagine that would help too 

Thanks for the info 



#20 siztenboots

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Posted 14 March 2019 - 01:18 PM

although the worst bit of the job , I find is getting underneath the vx to get at the big banjo bolt for the oil drain , trying to get a big bar and leverage access . you might want to consider changing the oil feed pipe that runs around the sump for the vxr one , the originals I have had 2 fail and bad engine fire.






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