T25 Alternative Engine Forum

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Last post

AAZ Water pump belt JX

Last post by Stesaw « 19 Aug 2024, 13:04
Replies: 10
by Stesaw » 13 Aug 2024, 00:15

Ok so, got a chap with an AAZ engine build thats had everything off a 1.6 TD put on it.. his old 1.6 engine as far as i know was out of a passat...

10 Replies

43347 Views

Last post by Stesaw
19 Aug 2024, 13:04
Engine

Last post by futureW « 14 Aug 2024, 00:43

by futureW » 14 Aug 2024, 00:43

Hello! I have a problem with the starting motor on a JX to AAZ engine conversion.
JX flywheel, JX Starting motor, AAZ engine.
When I tighten the two...

0 Replies

37666 Views

Last post by futureW
14 Aug 2024, 00:43
Which engine?

Last post by Aidan « 09 Aug 2024, 17:56
Replies: 5
by Noclue » 07 Aug 2024, 11:22

Hi everyone.

I have a T25 High Top 1985 1.6TD, left hand drive van. I am looking at replacing the existing engine as i have been told by my mechanic...

5 Replies

37435 Views

Last post by Aidan
09 Aug 2024, 17:56
ECU set up and Subaru select monitor 1 Bristol

Last post by mariner « 09 Aug 2024, 15:24
Replies: 2
by mariner » 07 Aug 2024, 16:47

This is my ecu set up in my van.

I’m trying to work out how to use it! The image in the instructions I have show the OBD socket (yellow), two...

2 Replies

34394 Views

Last post by mariner
09 Aug 2024, 15:24
EJ20- stalling at junctions ??

Last post by mariner « 31 Jul 2024, 20:58
Replies: 10
by matt brighton » 26 Oct 2018, 08:59

Hi

Apparently a common niggle mentioned on subary forums -

throwing up the no 24 fault code - open circuit/bad IACV (idle air control valve)...

10 Replies

46552 Views

Last post by mariner
31 Jul 2024, 20:58
Stuck on a campsite with no engine start

Last post by mariner « 31 Jul 2024, 15:07
Replies: 8
by mariner » 29 Jul 2024, 11:45

Hi all. We’ve found ourselves stuck on a campsite with a van that won’t start.

Drove a 100 miles here no probs having just had oil + filter change...

8 Replies

40986 Views

Last post by mariner
31 Jul 2024, 15:07
1.9AAZ OR MK5 TDi?

Last post by ZsZ « 30 Jul 2024, 11:40
Replies: 2
by Sco77w » 29 Jul 2024, 17:44

Looking for a bit of advice.
I have an “84 T25 that started life as a petrol powered van but I took it on as an unfinished project. As many projects...

2 Replies

34067 Views

Last post by ZsZ
30 Jul 2024, 11:40
Air filter on aaz conversion

Last post by lefty67 « 21 Jul 2024, 14:00
Replies: 4
by morganite » 20 Jul 2024, 15:55

Hi, on the last leg of my aaz conversion from jx 1.6, trying to mount the original jx cylinder air filter the brickwerks way,but it sits on top of...

4 Replies

34314 Views

Last post by lefty67
21 Jul 2024, 14:00
1988 diesel transporter looking for a new engine.

Last post by justinjgreenaway « 19 Jul 2024, 06:03
Replies: 2
by justinjgreenaway » 18 Jul 2024, 21:11

Hi Guys.

Anyone know if the diesel Subaru Impreza GR GH 2.0 D AWD Diesel EE20 EE20Z 150 PS is the correct engine to drop into t25 1988?

Trying to...

2 Replies

33493 Views

Last post by justinjgreenaway
19 Jul 2024, 06:03
Recommendations and request for JX replacement

Last post by Rich Mc « 11 Jul 2024, 08:30

by Rich Mc » 11 Jul 2024, 08:30

Hi all,

my 1.6td JX engine has head gasket issues and I've been recommended to have the engine replaced.
I tinker but this kind of work is beyond...

0 Replies

34814 Views

Last post by Rich Mc
11 Jul 2024, 08:30
Gearbox help

Last post by silverbullet « 09 Jul 2024, 21:32
Replies: 2
by Pedrobus » 08 Jul 2024, 14:26

Hi guys n gals .

I've got a gti lump in my t 25.
Seems like I need a new gearbox as the old 5 speed is worn and whinning in 1st and 2nd.

Which...

2 Replies

31335 Views

Last post by silverbullet
09 Jul 2024, 21:32
AAZ turbo clearance + vgt?

Last post by silverbullet « 26 Jun 2024, 16:58
Replies: 8
by chalkywoods » 08 Jun 2024, 09:49

The custom engine mount bracket on my AAZ fitted by previous owner is looking worse for wear so I was planning on fitting an original JX...

8 Replies

37416 Views

Last post by silverbullet
26 Jun 2024, 16:58
Automatic gearbox to Manual gearbox swap Flipped Audi box

Last post by Dueller « 24 Jun 2024, 20:08
Replies: 10
by Dueller » 27 May 2024, 19:30

...and here we go again

Time for another thread on my next evolution here, swapping out the porsche auto from my caravelle and fitting a flipped...

10 Replies

37988 Views

Last post by Dueller
24 Jun 2024, 20:08
Engine swap 1.9 polo Tdi

Last post by Robsey « 16 Jun 2024, 10:33
Replies: 2
by HMac » 16 Jun 2024, 09:35

Hello fellow rust bucket enthusiasts

I’m currently undergoing a T25 restoration and have now moved onto the engine stage
I have a 2006 Volkswagen...

2 Replies

30363 Views

Last post by Robsey
16 Jun 2024, 10:33
Alternative Subaru

Last post by silverbullet « 31 May 2024, 18:26
Replies: 1
by Cecil » 31 May 2024, 14:16

1 Replies

28588 Views

Last post by silverbullet
31 May 2024, 18:26
JX exhaust on AFN turbo

Last post by Oren Kipnis « 29 May 2024, 21:47
Replies: 2
by Oren Kipnis » 21 May 2024, 18:49

I found a complete new late model stainless steel JX exhaust for an excellent price, and would like to fit it to my AFN Syncro.

Any one has any idea...

2 Replies

29896 Views

Last post by Oren Kipnis
29 May 2024, 21:47
What year Subaru to go for?

Last post by ajsimmo « 25 May 2024, 08:18
Replies: 9
by retro_car_man » 08 Mar 2022, 22:11

Hey guys, looking to do a 2ltr Subaru swap in my 83 DG engined bus. What year of donor car should I be looking at?

9 Replies

37686 Views

Last post by ajsimmo
25 May 2024, 08:18
AFN fault codes

Last post by davidoft1 « 24 May 2024, 09:28
Replies: 1
by Gabe79 » 23 May 2024, 21:31

Hi everybody,

I’ve got problems with my AFN TDI conversion.
Any help would be much appreciated

Got codes the following codes

01262 solenoid...

1 Replies

29170 Views

Last post by davidoft1
24 May 2024, 09:28
diagnostics cable for tdi's

Last post by ZsZ « 11 May 2024, 20:10
Replies: 4
by t25adict » 28 Apr 2024, 11:29

what cable and software are people using with tdi conversions. I can see lots of cables on eBay etc, some with a CD.

its also possible to find lots...

4 Replies

32273 Views

Last post by ZsZ
11 May 2024, 20:10
AAZ injector refresh

Last post by chalkywoods « 02 May 2024, 11:41
Replies: 2
by chalkywoods » 29 Jan 2024, 18:03

I've been trying to get my AAZ running and starting a bit smoother and since 3/4 of my injectors had green waxy gunk seeping out I thought I'd pop...

2 Replies

4504 Views

Last post by chalkywoods
02 May 2024, 11:41
New overheating problem (diesel) on road trip

Last post by therealchrisgray « 18 Apr 2024, 09:53
Replies: 11
by therealchrisgray » 16 Apr 2024, 12:22

I hope someone can help, I'm on a long journey and have hit a snag.

I just packed up and hit the road out of the town where I spent the night, and...

11 Replies

10877 Views

Last post by therealchrisgray
18 Apr 2024, 09:53
AFN Dual mass flywheel ? can i use it ?

Last post by 16vmini « 15 Apr 2024, 09:44
Replies: 38
by 16vmini » 23 Jul 2012, 12:26
1

2

3
ok .. planning on fitting my AFN sharan motor this weekend .. but just found out i have a dual mass flywheel ...

can i carry on and use that for now...
38 Replies

30545 Views

Last post by 16vmini
15 Apr 2024, 09:44
Diesel leak under pressure

Last post by clift_d « 09 Apr 2024, 11:23
Replies: 15
by therealchrisgray » 07 Apr 2024, 19:16
1

2
1.9 diesel, non-turbo, of unknown origin, fitted decades ago, van was originally petrol.

No pool of liquid under the van when I got in it, but I...
15 Replies

9253 Views

Last post by clift_d
09 Apr 2024, 11:23
Golf Mk4 "APK" engine conversion

Last post by silverbullet « 25 Mar 2024, 19:33
Replies: 39
by silverbullet » 19 Jan 2020, 19:14
1

2

3
There's a little collective group of us looking at using the so-called Gen V inline crossflow engines as a successor to the AGG, as supplies dry up....
39 Replies

33118 Views

Last post by silverbullet
25 Mar 2024, 19:33
aaz front pulley problems

Last post by ajsimmo « 23 Mar 2024, 22:51
Replies: 7
by morganite » 04 Jan 2024, 16:03

Hi all you knowledgable people my name is Pete and this is my first post. Doing a JX to AAZ conversion and i’m worried about the front pulley coming...

7 Replies

34070 Views

Last post by ajsimmo
23 Mar 2024, 22:51
petrol to diesel engine swop

Last post by Dueller « 23 Mar 2024, 08:16
Replies: 2
by morganite » 20 Mar 2024, 14:15

Thinking about swopping the cream- crackered 1.9 wbx petrol engine for a diesel aaz engine, what is involved exactly ? is it just fit diesel...

2 Replies

2852 Views

Last post by Dueller
23 Mar 2024, 08:16
Porsche Automatic Gearbox Conversion into my Caravelle

Last post by bat « 19 Mar 2024, 22:24
Replies: 44
by Dueller » 24 Oct 2023, 19:23
1

2

3
Hi again everyone

My last project of fitting the Ford Mondeo st220 into my Caravelle thread was a real good story board so thought id start another...
44 Replies

26220 Views

Last post by bat
19 Mar 2024, 22:24
Newly purchase T25 - Subaru 2.5 in it - Engine Temp question

Last post by slowcoach « 19 Mar 2024, 08:47
Replies: 9
by symbol_soup » 16 Mar 2024, 23:20

Hi all,

I recently bought a well looked after1986 Reg T25 that had a Subaru conversion done in 2014 with a pre 2003 Legacy engine. It's done 5k...

9 Replies

4148 Views

Last post by slowcoach
19 Mar 2024, 08:47
1.9tdi AHU not starting unless boost control valve unplugged

Last post by Iwallace « 14 Mar 2024, 20:51
Replies: 5
by Iwallace » 07 Feb 2024, 19:40

Howdy,

At a bit of a loss so thought I’d come to the well of knowledge.
Tried starting up ready to drive to my MOT and no joy.
Well, it cranks and...

5 Replies

3276 Views

Last post by Iwallace
14 Mar 2024, 20:51
EJ25 Speed Sensor

Last post by totorro « 09 Mar 2024, 17:46
Replies: 3
by totorro » 01 Mar 2024, 19:36

Hello, I have questions around speed sensors and EJ25 ECUs, does anyone have any experience?

A bit of background - my van has a EJ25 conversion...

3 Replies

2994 Views

Last post by totorro
09 Mar 2024, 17:46
1.6D Exhaust System

Last post by The Hairy Camper « 07 Mar 2024, 16:57
Replies: 3
by The Hairy Camper » 05 Mar 2024, 20:53

So I have a 1.9D engine running with a 1.6D exhaust system. I've been running my exhaust without all the mounts attached as I couldn't get everything...

3 Replies

2368 Views

Last post by The Hairy Camper
07 Mar 2024, 16:57
Running rough after sitting for 3 months

Last post by ELVIS « 28 Feb 2024, 18:54
Replies: 15
by uniqueinteriors » 02 Feb 2024, 18:12
1

2
I have a 72 bay window with a 1600 twin port engine with twin 40 dellorto carbs. I did an engine rebuild last year and cover 400 miles last summer so...
15 Replies

5907 Views

Last post by ELVIS
28 Feb 2024, 18:54
The old which oil is best

Last post by mariner « 23 Feb 2024, 10:39
Replies: 2
by mariner » 22 Feb 2024, 18:51

Have read conflicting views on Scooby forums so thought I'd ask here as value your opinions. Which oil is best for a '96 EJ22. Have some 15-40 and...

2 Replies

2167 Views

Last post by mariner
23 Feb 2024, 10:39
Loss of power and garage stumped by wiring

Last post by mariner « 22 Feb 2024, 18:47
Replies: 15
by mariner » 09 Jan 2024, 16:14
1

2
Happy new year all! Hoping someone might have a little nugget of wisdom they can throw my way!

Before Christmas the slave cylinder on my van leaked...
15 Replies

39352 Views

Last post by mariner
22 Feb 2024, 18:47
AAZ diesel pump

Last post by T25boy71 « 21 Feb 2024, 09:17
Replies: 8
by morganite » 19 Feb 2024, 22:42

Hi, the AAZ diesel pump i’m using on my engine conversion has been on the donor engine, standing for about a year, it turns ok but i,m a bit worried...

8 Replies

4638 Views

Last post by T25boy71
21 Feb 2024, 09:17
Subaru Throttle Position Sensor

Last post by Nelpy « 17 Feb 2024, 13:53
Replies: 2
by Nelpy » 17 Feb 2024, 09:57

Hi

I’m looking for some advice on a replacement throttle position sensor for a Subaru H6 3.0 engine (from a 2001 Legacy Outback).

So far I can’t...

2 Replies

2468 Views

Last post by Nelpy
17 Feb 2024, 13:53
aaz pulley bolt socket

Last post by morganite « 13 Feb 2024, 20:56
Replies: 3
by morganite » 13 Feb 2024, 15:50

Hi, does anyone know where i can buy a 1/2 drive torx female socket ( think it’s an E26) for the 1.9 AAZ front pulley bolt?

3 Replies

2273 Views

Last post by morganite
13 Feb 2024, 20:56
oil pressure and oil temp gauges

Last post by ZsZ « 13 Feb 2024, 16:34
Replies: 1
by morganite » 13 Feb 2024, 16:21

Thinking of fitting an oil pressure and oil temperature gauge to my Camper when the AAZ conversion is finished.Where would i tap into the engine for...

1 Replies

2050 Views

Last post by ZsZ
13 Feb 2024, 16:34
Whitestar 1.9TDi 1z won’t start.

Last post by randolph57 « 09 Feb 2024, 20:49
Replies: 3
by stephen t25 » 11 Nov 2023, 16:38

Afternoon all,

Jumped into the van today and it normally starts on the button every time, but today no :( no orange glow plug light, turns over but...

3 Replies

8501 Views

Last post by randolph57
09 Feb 2024, 20:49
AAZ turbo questions

Last post by ZsZ « 25 Jan 2024, 21:44
Replies: 1
by morganite » 25 Jan 2024, 19:52

Advice please, want to fit a jx exhaust manifold onto my aaz conversion engine, can i fit a aaz turbo onto the jx exhaust.manifold? because all the...

1 Replies

2189 Views

Last post by ZsZ
25 Jan 2024, 21:44
Gti conversion

Last post by Dueller « 19 Jan 2024, 21:02
Replies: 2
by Raynsford5 » 12 Sep 2023, 11:41

Hi all I'm new to all this and would love some good advice, we have bought a lovely 1980 t25 air cooled was previously a diesel but I am planning on...

2 Replies

45310 Views

Last post by Dueller
19 Jan 2024, 21:02
Antifreeze, which one?

Last post by rollercoaster « 15 Jan 2024, 18:53
Replies: 2
by rollercoaster » 15 Jan 2024, 16:24

Ok so I am laying up my Syncro,
its got an AGG, Mk3 Golf engine,
and I dont know what antifreeze to use,
guess I am a bit stupid for not remembering...

2 Replies

3745 Views

Last post by rollercoaster
15 Jan 2024, 18:53
Glow plug rail

Last post by stephen t25 « 08 Jan 2024, 21:59
Replies: 3
by stephen t25 » 08 Jan 2024, 21:36

Evening all, does anyone know what glow plug rail goes on a 1.9tdi 1Z mine has disintegrated so can’t see part no, seem the be a few different ones...

3 Replies

31360 Views

Last post by stephen t25
08 Jan 2024, 21:59
Heavy Smoking after seal change

Last post by davidoft1 « 08 Jan 2024, 15:07
Replies: 2
by glennyboy2 » 08 Jan 2024, 13:24

1986 T3 fitted with a 1Y VW 1.9 non turbo engine.
After developing a leak, I have fitted a new head seal and reassembled the Bosch injection pump.
I...

2 Replies

27811 Views

Last post by davidoft1
08 Jan 2024, 15:07
alternator clutch

Last post by davidoft1 « 06 Jan 2024, 12:19
Replies: 3
by morganite » 05 Jan 2024, 15:48

Hi could anyone recommend a vw alternator that has a built in clutch to fit on an AAZ engine to relieve the pressure on the serpentine belt? (do any...

3 Replies

18068 Views

Last post by davidoft1
06 Jan 2024, 12:19
1700 A/C engine

Last post by callyspoy « 02 Jan 2024, 17:51
Replies: 8
by callyspoy » 02 Jan 2024, 07:07

Hi folks,
Does anybody have experience of installing a 1700 type 4 engine to their T25?

I am due to remove my 2.0 CU due to a little oil leak. It...

8 Replies

6173 Views

Last post by callyspoy
02 Jan 2024, 17:51
Subaru Fuel Pump Recommendations

Last post by Nelpy « 01 Jan 2024, 15:06
Replies: 22
by Nelpy » 27 Dec 2023, 15:10
1

2
Hi all,

Can anyone recommend a suitable inline fuel pump for a Subaru 3.0 H6 engine conversion? The pump has packed up and I can't identify what is...
22 Replies

15753 Views

Last post by Nelpy
01 Jan 2024, 15:06
Heater hose size

Last post by Simon Baxter « 12 Dec 2023, 10:23
Replies: 6
by T25boy71 » 24 Nov 2023, 14:48

Ok my heater hose from the cylinder head to the front heater valve has split at the cylinder head end.
Anyone know the size as the flange of the...

6 Replies

21693 Views

Last post by Simon Baxter
12 Dec 2023, 10:23
Return fuel pipe

Last post by Paigesouthern « 04 Dec 2023, 16:37

by Paigesouthern » 04 Dec 2023, 16:37

Please could someone help me, so a few week ago my car started to smoke (mk6 tdi 1.6 golf) one of the pipes keep coming off my injectors , I have...

0 Replies

46737 Views

Last post by Paigesouthern
04 Dec 2023, 16:37
Bosch Pump leaking

Last post by T25boy71 « 04 Dec 2023, 10:09
Replies: 4
by glennyboy2 » 03 Dec 2023, 09:28

1986 Leisuredrive fitted with a 1Y Diesel , year not known.
I noticed drips of diesel on the drive and traced it to the Bosch injector pump. I can’t...

4 Replies

13261 Views

Last post by T25boy71
04 Dec 2023, 10:09

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