The Brick-yard Homepage Brickwerks
Forum Home Forum Home > T3 Section > T3 Diesel upgrades
  New Posts New Posts RSS Feed - Yet another JX to AAZ swap log
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Yet another JX to AAZ swap log

 Post Reply Post Reply
Author
Message
mastakilla View Drop Down
Not Quite Newbie
Not Quite Newbie


Joined: 15 Jul 16
Location: Italy
Status: Offline
Points: 13
Post Options Post Options   Thanks (0) Thanks(0)   Quote mastakilla Quote  Post ReplyReply Direct Link To This Post Topic: Yet another JX to AAZ swap log
    Posted: 08 Dec 16 at 13:48
Hello, I have bought a '88 multivan with a blown JX, runs well but coolant is full of oil, still not sure if it's only the head gasket or if the head is cracked...anyway, I've done the sensible thing and bought a 1.9 TD: the seller states that it comes from a GTD Golf, but looking at it, it seems that the pump is the flat top "eco" one. 

Someone can confirm? If so, which are my options to give it a bit more poke, I have the old jx pump which seems OK, which is better?

My plans are to strip it down to the bare block, fit new rings and bore it if needed, rebuild it with new everything and fit it to the existing 5speed box. My mod list 
- fit a new crank pulley with new bolt, if I find the crank nose ruined I might fit a retainer pin
- use the clutched alternator pulley
- oil rad
- slight pump mods if allowed








Edited by mastakilla - 14 Mar 17 at 11:37
Back to Top
ob1 View Drop Down
Yardie
Yardie

FOUND IT, IT WAS HIDING!

Joined: 11 May 08
Status: Offline
Points: 658
Post Options Post Options   Thanks (0) Thanks(0)   Quote ob1 Quote  Post ReplyReply Direct Link To This Post Posted: 08 Dec 16 at 14:50
''Tis an AAZ. Slightly rubbisher later pump but it'll go ok.
Don't use the JX pump or injectors just look and fit an earlier pump with a decent boost pin and good to go.
If it's a known good engine I'd personally just slam it in. There are pretty indistructable with regular oil changes so long as they don't get too hot. Crank bolt pulley is a must. Change every cam belt swap as well. Use the JX v belt set up for less strain on the system or as you're saying use a clutched pulley.
Back to Top
mastakilla View Drop Down
Not Quite Newbie
Not Quite Newbie


Joined: 15 Jul 16
Location: Italy
Status: Offline
Points: 13
Post Options Post Options   Thanks (0) Thanks(0)   Quote mastakilla Quote  Post ReplyReply Direct Link To This Post Posted: 08 Dec 16 at 16:24
Thanks ob1 for the info! I'll start looking for a pump then, from a quick skim thru the classifieds they seem to go for as much as I paid for the engine, but I'll keep looking.
The fact is that I know nothing about this engine, it's being delivered to me on a transpallet, removed from a van of which I know absolutely nothing, so I thought of giving it a proper refresh for peace of mind essentially
Back to Top
ob1 View Drop Down
Yardie
Yardie

FOUND IT, IT WAS HIDING!

Joined: 11 May 08
Status: Offline
Points: 658
Post Options Post Options   Thanks (0) Thanks(0)   Quote ob1 Quote  Post ReplyReply Direct Link To This Post Posted: 08 Dec 16 at 17:03
It'll be ok with that pump. Just a bit flat.
Back to Top
oxford_rebel View Drop Down
Groupie
Groupie
Avatar

Joined: 24 Sep 07
Location: Banbury
Status: Offline
Points: 170
Post Options Post Options   Thanks (0) Thanks(0)   Quote oxford_rebel Quote  Post ReplyReply Direct Link To This Post Posted: 11 Dec 16 at 13:14
I had that pump on mine and it was ok, better than the previous JX. It died and I fitted a later LDA pump a year ago, that was much better, then a Brickwerks boost pin and it went really well, even my usual (experienced with AAZ T3) mechanic said it was the best AAZ he's driven. It's now got a cracked block so an AGG is going in and my pump (and nearly new injectors) will be for sale shortly.
Need Bands, PA, Staging or Lighting for your VW event? - Soundwave Audio
Back to Top
mastakilla View Drop Down
Not Quite Newbie
Not Quite Newbie


Joined: 15 Jul 16
Location: Italy
Status: Offline
Points: 13
Post Options Post Options   Thanks (0) Thanks(0)   Quote mastakilla Quote  Post ReplyReply Direct Link To This Post Posted: 12 Dec 16 at 13:12
Hi! If the cracked block is not a consequence of the pump, let me know when you have it for sale :)
Back to Top
mastakilla View Drop Down
Not Quite Newbie
Not Quite Newbie


Joined: 15 Jul 16
Location: Italy
Status: Offline
Points: 13
Post Options Post Options   Thanks (0) Thanks(0)   Quote mastakilla Quote  Post ReplyReply Direct Link To This Post Posted: 12 Mar 17 at 11:28
Hello again, I'm finally installing the engine, and while preparing it some issues/choices to make popped out

- the engine came with some badly modified support arms, to make space for the exhaust manifold and turbo, so since the old JX manifold/turbo seem to be in good shape, we are thinking of mounting them in place of the AAZ stuff, this would allow us to use the original untouched support arms. Is it a good idea or should we go with the original AAZ parts?

- as much as i'd like to source a proper LDA pump, they are all expensive and at this point I just want it on the road, I'd leave its eco pump but if there's something to be gained from the JX pump, I may use it... old question I know, but still

- we found this "piece" to be a little worn, but I can't find a replacement...it sits below the alternator, and has a shaft in it that rotates in a bushing (which is the worn part). What's that and where do I find service parts?



Thanks guys
Back to Top
ob1 View Drop Down
Yardie
Yardie

FOUND IT, IT WAS HIDING!

Joined: 11 May 08
Status: Offline
Points: 658
Post Options Post Options   Thanks (0) Thanks(0)   Quote ob1 Quote  Post ReplyReply Direct Link To This Post Posted: 12 Mar 17 at 19:40
Use the Jz manifold and turbo. You need to adapt the oil lines a little. Or buy new ones from brickwerks.

Use the AAZ pump and injectors. It'll be fine - or I've got a decent know good AAZ pump sitting here?
Back to Top
mastakilla View Drop Down
Not Quite Newbie
Not Quite Newbie


Joined: 15 Jul 16
Location: Italy
Status: Offline
Points: 13
Post Options Post Options   Thanks (0) Thanks(0)   Quote mastakilla Quote  Post ReplyReply Direct Link To This Post Posted: 13 Mar 17 at 15:55
Just spent an awful lot of money for bits and bobs..in the end went all out and even splashed for a full silicone pipes kit.
The only parts that I haven't been able to source online are 

bushings  028903313
grommets 028903310

both related to what I later discovered is the serpentine tensioner assembly pictured above.
Will have to scour the junkyards to find a good casting as mine is worn in the alloy.
What now concerns me is the fact that there's some leakage around the crankshaft seal, I'll fit new seals of course but I hope it's not a symptom of the dreaded AAZ self destruction...couldn't check the crank pulley as the engine is separated from the gearbox and the mechanic told me that he needs it attached not to lose the phase.
Fingers crossed...


Back to Top
mastakilla View Drop Down
Not Quite Newbie
Not Quite Newbie


Joined: 15 Jul 16
Location: Italy
Status: Offline
Points: 13
Post Options Post Options   Thanks (0) Thanks(0)   Quote mastakilla Quote  Post ReplyReply Direct Link To This Post Posted: 10 Apr 17 at 08:13
Engine is almost ready, waiting for the alt. bracket to come from somewhere so we can close it and put it back in the van.
One curious thing is this: I bought the extended oil return line from brickwerks, thinking that it would've been needed to fit the JX K14 turbo to the AAZ block, but in the end we reused the old one as it fits perfectly, while the extended one is too long and can't even befitted properly without doing ugly bends.
Are we missing something obvious here?
Back to Top
mastakilla View Drop Down
Not Quite Newbie
Not Quite Newbie


Joined: 15 Jul 16
Location: Italy
Status: Offline
Points: 13
Post Options Post Options   Thanks (0) Thanks(0)   Quote mastakilla Quote  Post ReplyReply Direct Link To This Post Posted: 18 Jul 17 at 09:05
Hi, engine is in, almost done connecting all the bits, at least it seems to run fine.
There are now some small minor issues, maybe you can shed some light on them (if anyone is reading)

- I've used the JX manifold and turbo, but the turbo sits a bit higher than in the JX. as a result, the JX downpipe now sits a bit higher too, and does not line up well with the exhaust back box.
I don't see this problem mentioned much elsewhere, how do people solve this? I can modify the downpipe with a flex section, buy the spacer from brickwerks or just force it in place

- The AAZ alternator seems a bit worn, so has to be rebuilt. I've realized that maybe by using the AAZ alt the original revcounter may read higher. What's best to fix it? Is there some pot in the cluster? I may use an Arduino to build the correct signal out of the AAZ output, but I'd avoid it if possible

Thanks!
Back to Top
ob1 View Drop Down
Yardie
Yardie

FOUND IT, IT WAS HIDING!

Joined: 11 May 08
Status: Offline
Points: 658
Post Options Post Options   Thanks (0) Thanks(0)   Quote ob1 Quote  Post ReplyReply Direct Link To This Post Posted: 18 Jul 17 at 16:01
I recently used the brick-yard spacer which worked very well. Although I've found you can usually bodge it all in to place with a drill and enthusiasm.

Did work better with the spacer plate though!

Not sure about the alternator.
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 11.10
Copyright ©2001-2017 Web Wiz Ltd.

The WebThis site