My SWB TT Z32...

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jap.slapper
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Re: My SWB TT Z32...

Post by jap.slapper »

The Monaco GP got me in the mood for a bit of engine building so I got my ass' out to the workshop and set about working on the mani's and turbo's


The AMS manifolds seem ok in general but the nuts/studs and other bits that came with them seem a bit ropey (read: shite!!) so where possible I've opted to re-use the OEM bits.


The first thing that I noticed was that on each of the mani's the OEM suds were too long and were catching preventing the manifold from siting flush against the block


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so I dug out the dremmel and shortened it by about 0.5 of an inch



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the AMS design offers much greater performance over OEM and other mani's such as Mike Smith but they are far from perfect. Some of the features make you wonder what they're playing at, for example the OEM washers can't be used as there isn't enough clearance to accommodate them so rather than rectify and modify the design AMS simply opted to supply some inferior quality split washers instead?

Regardless the stud that was cut down does not give enough room to enable a washer to be used, it just physically doesn't fit (not even the AMS split washers) so I've just tightened it up nice and tight using an OEM nut and hopefully that will be fine...



The mani' now sits nice and flush against the block


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The next job was to tackle the turbo's. I stripped one down a bit further as I wanted to check on the work that a particular Zed specialist had carried out several years ago, and just as well I did really as there was all sorts of rust, crap and sealant blocking one of the banjo bolts.

Now considering that this banjo bolt has never been off the turbo since getting it from the aforementioned 'specialist' and bearing in mind that the car has never been run since I got it back from them (it was fired up once on their premises just before the bailiffs rocked up to throw them out) I can only come to the conclusion that it was like this when they fitted it....




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I've already decided that I'm going to have to replace all of the hard pipes and banjo bolts, some of which the specialist figured would work better if they were bent over and crimped in the middle (fook' knows what they were thinking?)



I've given the turbo's a thorough dig out and am pretty sure that there's no crap inside, though only time will tell if that is the case.



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As both turbo's (driver and passenger) side seem to be exactly the same I thought I'd best test fit them to work out which goes on the left and which goes on the right. This is very much a case of playing it by ear as I've never fitted turbo's to a VG before





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The turbo inlet is the next part of fab work that needs to be addressed though my initial thoughts were to leave it open and just cover with a makeshift mesh protective filter just to stop large bits of track debris from getting into the turbo, though thinking about it further I may have an adaptive plate made up to enable a HKS mushroom filter to be fitted mounted 10" forward of the engine mount.


All it would require is a strong 10" length of re-enforced silicone pipe to connect the turbo housing to the filter, which would offer some protection but would not require masses and masses of pipework just to get the filters mounted in the front nose panel of the car (as is the case when in its stock location).

I want to keep the filters mounted just in front of the engine mounts and feed them with some ducting, this would mean a lot less clutter in the engine bay and offer better access



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I'm not entirely sure that the braided hose (with the banjo bolt running from the turbo to the engine block) is in the correct location, however it fits so I suspect that it might be.....this is the next bit of googling' for me to check


I've also ordered some new turbo gaskets, this time I'm pretty sure I've ordered the correct ones :D


All in all it's been a productive few hours

Gonzo12c
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Re: My SWB TT Z32...

Post by Gonzo12c »

You have been busy today just to pitch in with my bits.

Is the other turbo fitted as the usual outlet would be be exiting vertically otherwise a 45 degree coupling will sort this.

The braided oil hose is going to the right place on the block. You normally have the stock oil pressure sensor in this line but I'm guessing you are probably on a sandwich plate take off point or relocation anyway.

That's about all I can add apart from seeing that those AMS manifolds are shocking and I've got a set I've never tried to fit for sale if I can shift them now haha. Or if my engine comes out I'll just end up using them.

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jap.slapper
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Re: My SWB TT Z32...

Post by jap.slapper »

Gonzo12c wrote:those AMS manifolds are shocking and I've got a set I've never tried to fit for sale if I can shift them now haha. Or if my engine comes out I'll just end up using them.


Don't get me wrong, they'd make fantastic paperweights or even door stops at a push...

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jap.slapper
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Re: My SWB TT Z32...

Post by jap.slapper »

jap.slapper wrote:
I've also ordered some new turbo gaskets, this time I'm pretty sure I've ordered the correct ones :D


I've just found a set tucked away in the workshop....bloody typical!! :banghead:

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Stuart
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Re: My SWB TT Z32...

Post by Stuart »

Proper thread update JS :D Love the detail & plenty of pics as well. Funny how the F1 inspires us to do different things. You build engines. I swapped channels and had another beer ;)
http://www.auto-genie.co.uk
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Valeting, detailing and undersealing

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jap.slapper
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Re: My SWB TT Z32...

Post by jap.slapper »

I thought something wasn't quite right with the previous pic and having trawled back through some old photobucket pics I realised that I hadn't re-fitted the actuator....doh!!


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I can't find what I've done with the little C-clip that holds the actuator arm in place so I thought I might be able to re-use the OEM split pin from the stock turbo, to be honest I doubt it would hold so will now be sourcing a proper clip from somewhere....


I had to adjust the arm length by about 3/4 of an inch to make it reach the little pivot arm on the compressor housing


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note the gaskets are fitted....I reckon I've wasted about £45 on turbo gaskets so far this week



I've also realised that with most of the excess piping and clutter now in the bin I'm having to get a bit creative with the re-routing of the water and vacuum piping that's left.

I think this is a water pipe



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and I was wondering if these ^^^^ (there's one on each turbo) could be run to each of these water pipes on the back of the engine?


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If you remember I was debating connecting those two pipes together now that the heater matrix has been taken out of the equation but if I did that I'm not sure where these water pipes on the turbo would run to

The smaller water pipes on the turbo are sorted as they will just run to the smaller pipe branching off the larger pipe


The next query is regarding the short vacuum hoses (blue in the pic) that are currently exiting the cam covers, I believe these usually run to a port on either the stock turbo intake pipe or turbo outlet pipe but as I have binned the excessively long turbo intake pipework and will be running a filter directly off the turbo inlet I assume I need to loop these back into something vacuum related?


note: the small hard pipe is part of the plenum/water setup that is now redundant so that will just be dremmel'd off later this evening.


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If I remember correctly this larger blue Samco hose running from the AAC valve also goes into either the stock turbo inlet pipe or turbo outlet pipe, so I was wondering if this could be looped forward to where the shorter blue pipe is exiting the cam covers


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If I can loop this forward on the passenger side then I'll need to find a way of looping the drivers side also?


I think if I can hook all of these pipes up without too much trouble then it will make for a much simpler and less confusing engine layout



More fun and games this evening I think :hurray:

Gonzo12c
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Re: My SWB TT Z32...

Post by Gonzo12c »

Check your text messages ;)

Blue pipe exiting cam cover is the PCV system so as I take it you have deleted PCVs and bunged them up like mine this can run to either a catch tank like I have done which isn't really needed or to atmosphere.

The samco hose off the idle valve at the rear needs to go to an inlet source which this would normally be on the black metal turbo outlet pipe not sure if you will be using these or something else but needs that feed to idle properly.

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jap.slapper
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Re: My SWB TT Z32...

Post by jap.slapper »

Ref text, that would make sense mate I've clearly lost the plot now....best not connect them up to the water pipes then eh, what with them needing to run to the sump!! :banghead:

Next question, can I use a steering wheel as a space saver?

Just as well I'm only brain storming at the moment otherwise I'd have the fmic hooked up to the fuel tank

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jap.slapper
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Re: My SWB TT Z32...

Post by jap.slapper »

So the pipe needs to be facing this way then I presume



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which makes sense as it would then line up with this port on the sump (not that I'll be using this battered old piece of tin!)



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congratulations on spotting my deliberate mistake though, I was just making sure you were paying attention....

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jap.slapper
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Re: My SWB TT Z32...

Post by jap.slapper »

That's the wrong side isn't it?

Very, very tired.....

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