T25 Alternative Engine Forum

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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

1416 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
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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

35966 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

2085 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

1425 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

1308 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

1255 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

7385 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

1353 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

44412 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

2851 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

30388 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

26916 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

17198 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

4743 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
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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

11906 Views

Last post by Nelpy
01 Jan 2024, 15:06
Ford Mondeo st220 into '88 Caravelle

Last post by R0B « 15 Dec 2023, 09:36
Replies: 75
by Dueller » 04 Jul 2023, 20:40
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Starting this thread to document my thoughts and journey here, hope it helps someone else who's having some ideas but not jumping in for whatever...
75 Replies

408896 Views

Last post by R0B
15 Dec 2023, 09:36
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

20080 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

45512 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

12074 Views

Last post by T25boy71
04 Dec 2023, 10:09
Moving the slave cylinder mount aside?

Last post by Philwilgil « 28 Nov 2023, 17:55
Replies: 5
by 4gearwonder » 16 Aug 2022, 18:09

Hi all, Any help always appreciated - thanks - as we're booked to go away this Friday and suspected starter motor problem (no start or cranking -...

5 Replies

9880 Views

Last post by Philwilgil
28 Nov 2023, 17:55
Engine swap choice - future proofing.

Last post by mike.g « 23 Nov 2023, 21:44
Replies: 13
by mike.g » 29 Oct 2023, 09:54

I’m very slowly starting to think about the engine choice for my van. I have an asthmatic 1.6d with no oomph and on its last legs.

Over the last...

13 Replies

16180 Views

Last post by mike.g
23 Nov 2023, 21:44
Are belts to water pump on AAZ fitted correctly?

Last post by Middle29 « 22 Nov 2023, 09:06
Replies: 2
by Middle29 » 18 Nov 2023, 12:50

I have a mechanic doing some work and has fit belts to my AAZ in my van. He checked with Brickwerks and did his own research and has fitted belts...

2 Replies

9815 Views

Last post by Middle29
22 Nov 2023, 09:06
engine upgrade to AFN 1.9TDI

Last post by colinthefox « 21 Nov 2023, 20:40
Replies: 1
by Marktwain » 21 Nov 2023, 15:38

Been dipping into posts about engine swaps recently, as I had my venerable (read; smoky, smelly and slow) old JX replaced by an AFN 1.9 TDI and the...

1 Replies

9400 Views

Last post by colinthefox
21 Nov 2023, 20:40
Is it possible to use a mk6 golf or similar age vw accelerator pedal

Last post by charlie_chalky « 11 Nov 2023, 10:46
Replies: 3
by charlie_chalky » 10 Nov 2023, 15:41

Ive currently got the mk3 golf style throttle position sensor in the engine bay pulled via the original cable and pedal. I know people have used mk4...

3 Replies

7851 Views

Last post by charlie_chalky
11 Nov 2023, 10:46
1.9 TDI engine identification

Last post by Nistorph « 05 Nov 2023, 12:21
Replies: 9
by Nistorph » 07 Oct 2023, 18:26

Hi all,

I’m looking to change the cambelt on my 1.9tdi T25 Syncro and am struggling to identify the engine type and engine number which potentially...

9 Replies

10115 Views

Last post by Nistorph
05 Nov 2023, 12:21
Subaru conversion

Last post by J P « 07 Oct 2023, 12:33
Replies: 10
by Jilldub » 01 Oct 2023, 19:32

Sorry to bore you more experienced guys with what’s probably a common question .
I have looked for hours at several posts on here but still don’t...

10 Replies

11465 Views

Last post by J P
07 Oct 2023, 12:33
vw golf engine in to t25 wbx

Last post by Raynsford5 « 22 Sep 2023, 21:11
Replies: 13
by pete77 » 05 Mar 2016, 14:11

Hi has any body fitted a golf engine into a t25 high top? please recommend the one to go for.not after setting speed records just a reliable...

13 Replies

19679 Views

Last post by Raynsford5
22 Sep 2023, 21:11
The Superboxer, a new heart for the Silver Bullet

Last post by silverbullet « 12 Sep 2023, 18:24
Replies: 315
by silverbullet » 29 Sep 2011, 10:40
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I've been after this one for a while, ever since I heard about it. Circa 1988 the owner of a nearly new Carat Auto felt that it just wasn't quick...
315 Replies

1529121 Views

Last post by silverbullet
12 Sep 2023, 18:24
1.8 t at 50 degrees

Last post by Dueller « 11 Sep 2023, 14:26
Replies: 19
by axeman » 02 Jan 2021, 21:13
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About a year ago I bought a 1.9 rhd un cut panel van. At the time I also owned a 1998 a4 1.8t one owner full service history car. With a damaged head...
19 Replies

20766 Views

Last post by Dueller
11 Sep 2023, 14:26
1.8T

Last post by tolismisis « 05 Sep 2023, 12:27
Replies: 10
by Mk2Tony » 30 Dec 2020, 10:03

Hi guys, had anyone on here attempted a 1.8T conversion on their van and have any pictures of the engine mounts, or a build thread?
Just looking at...

10 Replies

14874 Views

Last post by tolismisis
05 Sep 2023, 12:27
One for the Diesel gurus

Last post by Cecil « 03 Sep 2023, 20:55
Replies: 3
by Stesaw » 02 Sep 2023, 20:58

So, I am very green with Diesels...

Got a chap who wants an AAZ building up, I've told him that i've no real experience with them but he's OK with...

3 Replies

7618 Views

Last post by Cecil
03 Sep 2023, 20:55
Plastic impeller broke

Last post by glennada « 29 Aug 2023, 16:51
Replies: 5
by glennada » 25 Aug 2023, 15:31

Hello all,
My water pump disintegrated the other day, and the impeller broke apart while it was being driven.
Luckily it had just got home and while...

5 Replies

7963 Views

Last post by glennada
29 Aug 2023, 16:51
OBD Comms not working

Last post by Club Joker « 21 Aug 2023, 22:48
Replies: 4
by MidLifeCrisis » 13 Aug 2023, 16:59

Trying to connect obd reader to an AGG installation; The OBD connector is stashed under the dash (so I assume that this means it is probably...

4 Replies

7877 Views

Last post by Club Joker
21 Aug 2023, 22:48
MTdi 120A alternator?

Last post by ZsZ « 18 Aug 2023, 09:09

by ZsZ » 18 Aug 2023, 09:09

After my recent alternator problems I am considering to change my alternator system to a serpantine belt 120A setup. (I have Mtdi 1Z with the JX two...

0 Replies

45428 Views

Last post by ZsZ
18 Aug 2023, 09:09
2.1DJ to EJ251 Conversion - On the the road!

Last post by slowcoach « 10 Aug 2023, 12:34
Replies: 6
by ManicGTI » 16 May 2023, 20:49

I know this is nothing ground breaking these days, but thought I'd slap a few pics up in case anyone's interested...

Engine is a EJ251 from a ~60k...

6 Replies

9156 Views

Last post by slowcoach
10 Aug 2023, 12:34
Best Engine to Meet Euro 4 or 6 Emissions? ULEZ issue

Last post by ManicGTI « 04 Aug 2023, 21:36
Replies: 45
by timthemod » 13 Feb 2019, 20:03
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I have a 1987 transporter 2.1 DJ engine, camper converted ifrom a van. I live just inside the North Circular Road in London and come 2021 my van will...
45 Replies

75596 Views

Last post by ManicGTI
04 Aug 2023, 21:36
Porsche 986 2.7l in a VW T3/T25

Last post by Dueller « 04 Aug 2023, 09:15
Replies: 9
by bungleburch » 10 Jul 2023, 14:39

Okay so hear me out,

I've been gifted a 2001 986 complete car with all manor of body issues, so I thought why not?! So I'm taking it apart for parts...

9 Replies

11255 Views

Last post by Dueller
04 Aug 2023, 09:15
AAZ engine

Last post by Boerboel « 02 Jul 2023, 16:57

by Boerboel » 02 Jul 2023, 16:57

Guys-looking for some advice,had a lot of work done to my 25,it cut out due to fuel starvation twice and I don’t have the knowledge to get it...

0 Replies

45049 Views

Last post by Boerboel
02 Jul 2023, 16:57
Coolant leak issues

Last post by SurfT25 « 30 Jun 2023, 15:56
Replies: 23
by pleasestartnow » 19 Jun 2023, 14:45
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Another day another question.

I have had a leaky oil sump for years now, possibly even since I first got it 10 years ago. It only leaks after the...
23 Replies

16773 Views

Last post by SurfT25
30 Jun 2023, 15:56
Is this the correct hose set?

Last post by Negativegravity « 25 Jun 2023, 17:45

by Negativegravity » 25 Jun 2023, 17:45

On our way to a campsite this weekend, a hose split between above the oil cooler. I managed to cut the split bit off, and reattach with more water...

0 Replies

44619 Views

Last post by Negativegravity
25 Jun 2023, 17:45
Am I missing a nut on the throttle mechanism?

Last post by pleasestartnow « 14 Jun 2023, 21:00
Replies: 6
by pleasestartnow » 14 Jun 2023, 12:16

I'm just doing the air, oil and fuel filter changes and I noticed on the top of my throttle mechanism it looks like I'm missing a nut? Now at the...

6 Replies

7717 Views

Last post by pleasestartnow
14 Jun 2023, 21:00
Rebuild Vs Engine Swap ?

Last post by herman_t25 « 13 Jun 2023, 09:36
Replies: 3
by herman_t25 » 12 Jun 2023, 18:07

Hi all,

so wanted so advise or opinions on what I should do with my engine. I currently have the 1.9L WBX in my van but as its coming up to its 39th...

3 Replies

7588 Views

Last post by herman_t25
13 Jun 2023, 09:36
Engine upgrade by busmiester

Last post by clift_d « 12 Jun 2023, 13:43
Replies: 11
by Marktwain » 28 May 2023, 22:22

1.6 TD in van is pushing 190k miles, still runs but starting becoming a bit precarious. So booked in for vw 1.9 tdi variable vane turbo to be fitted...

11 Replies

9494 Views

Last post by clift_d
12 Jun 2023, 13:43
JX to AGG Conversion

Last post by Spailpin Fanach « 04 Jun 2023, 17:46
Replies: 2
by Spailpin Fanach » 04 Jun 2023, 09:23

Hi all

I'm having a lot of hassle with my insurance company who refused to countenance any upgrade or conversion to my 1989 1.6TD JX T25 Westy. They...

2 Replies

7331 Views

Last post by Spailpin Fanach
04 Jun 2023, 17:46
Syncro AAZ turbo leaking oil

Last post by fh9977 « 09 May 2023, 11:40

by fh9977 » 09 May 2023, 11:40

Hi folks,
Just had the van inspected for an oil leak on coming out of the turbo. Garage said that turbo is fine but it will leak because of the way...

0 Replies

44901 Views

Last post by fh9977
09 May 2023, 11:40
Passat 1.9tdi conversion

Last post by Smudgersmith « 05 May 2023, 16:27
Replies: 6
by Smudgersmith » 05 May 2023, 07:54

Hi all i currently get 20 mpg from my 2.0 cu Aircooled engine.Wich is normal as far as i know.
But realy want to do some longer trips so with fuel...

6 Replies

8155 Views

Last post by Smudgersmith
05 May 2023, 16:27
Help with running issues 1.9 TD aaz engine in new T25 Purchase

Last post by Gavrilo « 05 May 2023, 13:35
Replies: 2
by Blix99 » 02 May 2023, 14:53

Hello. (Apologies- I posted in the wrong area. Moderation moved - thanks : )

I wonder if anyone has any advice or experience with the 1.9 AAZ,...

2 Replies

8318 Views

Last post by Gavrilo
05 May 2023, 13:35
Fitting Wolfy Exhaust

Last post by ELVIS « 22 Apr 2023, 12:04
Replies: 7
by MidLifeCrisis » 16 Apr 2023, 21:37

Hoping for a little sanity check before I decide to just add spacers;
I am fitting a wolfy exhaust to an AGG engine;
The left and right exhaust...

7 Replies

9451 Views

Last post by ELVIS
22 Apr 2023, 12:04
1Z timing belt change interval

Last post by davidoft1 « 08 Apr 2023, 17:08
Replies: 4
by ZsZ » 03 Apr 2023, 09:25

I am in a dilemma. As per title. To change or not to change? Last change was done 5 yrs and ~40k kms ago. Before I read a 5yr 60k kms interval...

4 Replies

7900 Views

Last post by davidoft1
08 Apr 2023, 17:08
New engine needed

Last post by Aidan « 04 Apr 2023, 07:10
Replies: 5
by Spailpin Fanach » 02 Apr 2023, 12:53

I haven't been on here for several months since my beloved 1989 VW 1.6TD JX T25 Westfalia mistook in T in T25 for Tea, boiled and cracked the...

5 Replies

7918 Views

Last post by Aidan
04 Apr 2023, 07:10

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