T25 Alternative Engine Forum

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Last post

Fuel leak diesel

Last post by ELVIS « 31 Mar 2023, 22:54
Replies: 14
by T25boy71 » 07 Mar 2023, 15:20

Engine is 1Z fuel pump mechanical of what I have no idea
Any advice very welcome

14 Replies

15030 Views

Last post by ELVIS
31 Mar 2023, 22:54
Engine hatch cutting

Last post by silverbullet « 28 Mar 2023, 07:19
Replies: 9
by glennada » 17 Mar 2023, 18:25

Hello all,
Stupid questions follow...

I hear that if you install an AAZ into t25 the you have to cut the engine hatch.
Can the engine mounts not...

9 Replies

8654 Views

Last post by silverbullet
28 Mar 2023, 07:19
1.9 Diesel 1Y exhaust

Last post by ajsimmo « 12 Mar 2023, 11:04
Replies: 4
by Sammyd » 11 Mar 2023, 13:06

Any advice on what exhaust to use on a 1Y engine conversion?

The exhaust fitted by previous owner is incredibly loud!!

I’m not expecting quiet out...

4 Replies

7460 Views

Last post by ajsimmo
12 Mar 2023, 11:04
engine

Last post by mrhutch « 07 Mar 2023, 21:31
Replies: 4
by blackhawk » 07 Mar 2023, 21:01

Hi all need your help, have a 1.9 diesel engine fitted to my camper, but not sure which engine it is & cannot find an engine number anywhere on it,...

4 Replies

7426 Views

Last post by mrhutch
07 Mar 2023, 21:31
Buying an AHU Engine. What to look for.

Last post by Al Housman « 02 Feb 2023, 19:18

by Al Housman » 02 Feb 2023, 19:18

A bit late this but I'm going to look at an AHU engine in a Mk3 Golf tomorrow. It has about 100k on it whch is born out by its MOT history.
Apart...

0 Replies

44036 Views

Last post by Al Housman
02 Feb 2023, 19:18
AVB engine from a 2002 A4?

Last post by Aidan « 02 Feb 2023, 08:15
Replies: 1
by FifeBay » 01 Feb 2023, 19:50

Hello, I’m new to the forum and picking up a T25 Doka at the weekend. It’s a 1988 with a 1.6JX engine which is seized and potentially completely...

1 Replies

6809 Views

Last post by Aidan
02 Feb 2023, 08:15
so c'mon, is the AAZ conversion worth it?

Last post by davidoft1 « 08 Jan 2023, 18:41
Replies: 29
by charlie brown syndrome » 14 Jul 2010, 20:46
1

2
hi all,

right,
ive recently bought a van and after mulling through the different information ive decided to go for the AAZ conversion, mainly...
29 Replies

48502 Views

Last post by davidoft1
08 Jan 2023, 18:41
Diesel engine bars

Last post by mike the van « 07 Jan 2023, 14:29
Replies: 5
by mike the van » 06 Jan 2023, 18:13

Ok, I know the question has been asked before, but trying to work through collecting parts for an Aircooled to GTI conversion, body and underside of...

5 Replies

7929 Views

Last post by mike the van
07 Jan 2023, 14:29
1.8 GTI Digifant exhaust manifold fun!

Last post by Aidan « 20 Dec 2022, 07:36
Replies: 2
by Garax21 » 19 Dec 2022, 20:00

Hello wise people I have a converted T25 with a 1.8 GTI Mk2 digifant engine installed. Having replaced a long list of bits due to its age the next...

2 Replies

3175 Views

Last post by Aidan
20 Dec 2022, 07:36
1Y fuel injectors

Last post by mrhutch « 09 Dec 2022, 10:38
Replies: 3
by Glennerdous » 04 Dec 2022, 17:54

Hi guys I've had my T25 now for nearly 6 years, it had a 1Y engine fitted when purchased and I've kept it because its pretty solid (slow but solid)...

3 Replies

3465 Views

Last post by mrhutch
09 Dec 2022, 10:38
Alternative Gearboxes for the VW T25

Last post by Aidan « 07 Dec 2022, 16:34
Replies: 6
by josephcarey1 » 28 Oct 2022, 16:50

Hi All,

Ok so this might have been spoken about before, but I'm yet to find a thread that goes into detail about other options. Apologies if this...

6 Replies

5425 Views

Last post by Aidan
07 Dec 2022, 16:34
1y aux belt

Last post by ESPANTA « 01 Dec 2022, 06:58
Replies: 26
by weldore » 31 Jul 2011, 15:06
1

2
does the aux belt send the water pump clockwise or anti-clockwise ?

..cheers dave
26 Replies

16249 Views

Last post by ESPANTA
01 Dec 2022, 06:58
2.0 FSI Engine in T25

Last post by silverbullet « 26 Nov 2022, 10:50
Replies: 2
by timscarth » 13 Nov 2022, 19:52

Hi all, hope you can help me with answering this.

I have a 1983 T25 with a broken 1.9DG engine (needs head gaskets doing). I also have a 2006 Seat...

2 Replies

1497 Views

Last post by silverbullet
26 Nov 2022, 10:50
Regeared gearbox question

Last post by CoalMarx « 25 Nov 2022, 16:38
Replies: 6
by CoalMarx » 25 Nov 2022, 08:01

Hi all, simple question. Is there somewhere where you can buy a regeared gearbox suitable for stronger engines, then just swap over at the same time...

6 Replies

1612 Views

Last post by CoalMarx
25 Nov 2022, 16:38
T3 1986 / Glf 1.9 SDI Exhaust Question

Last post by Rickbarr « 08 Nov 2022, 02:35
Replies: 2
by Rickbarr » 01 Nov 2022, 12:36

Hello all, fairly new to forum and owning my 1986 T3 Hightop .The exhaust has gone for the worse. I d like to replace the lot rather than weld and...

2 Replies

1254 Views

Last post by Rickbarr
08 Nov 2022, 02:35
Alternative and much cheaper fuel pressure regulator for na EJ20 subaru engine

Last post by mshaw1980 « 06 Nov 2022, 18:35
Replies: 2
by mshaw1980 » 06 Nov 2022, 00:43

Hi all

Had a problem burning out fuel pumps which was finally found to be a broken fuel pressure regulator which caused so much of a constriction...

2 Replies

2588 Views

Last post by mshaw1980
06 Nov 2022, 18:35
1.9 1Y Fuel Injection Pump

Last post by Oldiebut goodie « 02 Nov 2022, 09:06
Replies: 16
by The Hairy Camper » 29 Mar 2019, 15:41
1

2
Hi people, i was removing the electrics from my 1Y engine today and i noticed that the fuel injection pump looks a little different from my original...
16 Replies

8999 Views

Last post by Oldiebut goodie
02 Nov 2022, 09:06
Alternatives to 2.0l Aircooled CU engine

Last post by shepster « 29 Oct 2022, 13:37
Replies: 14
by RichieCrow » 13 Oct 2022, 11:38

Hi- I have a 1981 T25 with a 2.0l Aircooled CU petrol engine. Said engine is knackered and needs replacing. Is there any alternative engines that...

14 Replies

3900 Views

Last post by shepster
29 Oct 2022, 13:37
VW/Audi 1.8t engine conversion.

Last post by escovedo « 29 Oct 2022, 07:43

by escovedo » 29 Oct 2022, 07:43

Has any forum member fitted the VW/Audi 1.8t engine?
It's a compact power unit with good power and reasonable fuel economy.

0 Replies

2182 Views

Last post by escovedo
29 Oct 2022, 07:43
How to make the brick fly?

Last post by DoubleOSeven « 21 Oct 2022, 14:04
Replies: 1
by CoalMarx » 21 Oct 2022, 10:15

Hi folks, after a failed attempt to buy an air-cooled T25 me and my Dad, who's not a VW specialist but a lifer as a mechanic (now retired) have our...

1 Replies

1309 Views

Last post by DoubleOSeven
21 Oct 2022, 14:04
1.6D CS upgrade to 1.9TD AAZ

Last post by nokia7799 « 18 Oct 2022, 20:13

by nokia7799 » 18 Oct 2022, 20:13

Hi

I am currently changing my 1984 T25 engine from its original 1.6 D CS to a 1.9 TD AAZ which i had as a donor engine. I have the engine and...

0 Replies

2196 Views

Last post by nokia7799
18 Oct 2022, 20:13
AAZ (syncro) Aux coolant pump/switch

Last post by steve770 « 02 Oct 2022, 17:25
Replies: 3
by steve770 » 30 Sep 2022, 19:41

Hi folks, recently went out to find the new van had a flat battery which turned out to be due to the Aux afterrun pump permanently running after the...

3 Replies

1321 Views

Last post by steve770
02 Oct 2022, 17:25
1.9tdi Oppertunity

Last post by Oren Kipnis « 26 Sep 2022, 15:54
Replies: 5
by SimonD » 03 Sep 2022, 15:38

Hi Guys,

I have been trying to read as much as I can on the forums about the 1.9tdi AHU engine.

I have had a look on the wikipedia page for VW...

5 Replies

1910 Views

Last post by Oren Kipnis
26 Sep 2022, 15:54
Exhaust

Last post by dogbreath100 « 24 Sep 2022, 12:43
Replies: 2
by dogbreath100 » 24 Sep 2022, 09:20

Hi , I am looking for recommendations for a exhaust pipe that goes from the manifold
to the silencer . I replaced one about 5 years ago and now it...

2 Replies

1348 Views

Last post by dogbreath100
24 Sep 2022, 12:43
Exhaust manifold for T3 Pick up 1z conversion

Last post by skirk « 20 Sep 2022, 13:30

by skirk » 20 Sep 2022, 13:30

My van is currently having a conversion to a 1z engine. The old manifold has no waste gate outlet. The 1z does but the flange is at completely the...

0 Replies

2168 Views

Last post by skirk
20 Sep 2022, 13:30
Engine I D ?

Last post by PeteandNikki « 20 Sep 2022, 11:25
Replies: 2
by PeteandNikki » 19 Sep 2022, 19:55

Need some help from the diesel gurus on here.
About 5 years ago(when I thought I had more time than it turns out that I actually do have!) I bought...

2 Replies

1305 Views

Last post by PeteandNikki
20 Sep 2022, 11:25
3l V6 Ford Conversion

Last post by Robsey « 17 Sep 2022, 11:54
Replies: 1
by MyBlueT25 » 15 Sep 2022, 09:42

Hi, I have a JL3000 which as some of you know is a South African Essex V6 conversion on vans from the factory and sold in the SA VW forecorts, its...

1 Replies

1308 Views

Last post by Robsey
17 Sep 2022, 11:54
real mpg figures for T3's V T4's

Last post by clift_d « 07 Sep 2022, 07:46
Replies: 14
by t25adict » 12 Jun 2022, 19:39

so.. we have a 1.9td t4 short wheel base window van. (not a camper)
and I am working on our t3 crew cab which at this point is a 1.9td (aaz).

we are...

14 Replies

4863 Views

Last post by clift_d
07 Sep 2022, 07:46
AGG gearbox code choice.

Last post by ZsZ « 29 Aug 2022, 13:40
Replies: 8
by kevtherev » 14 Mar 2021, 04:54

I use a standard petrol engine (DG) gearbox on spec diameter wheels and tyres, on my ADY powered hightop.
Is it wrong to assume that the extra power...

8 Replies

6075 Views

Last post by ZsZ
29 Aug 2022, 13:40
Apk gen v git

Last post by silverbullet « 15 Aug 2022, 06:11
Replies: 18
by axeman » 05 Dec 2021, 21:54
1

2
Hi all fitting a mk4 golf gti engine at 50 degrees.also converting the manual to an auto
Always worth asking vw (tps) for the cost of parts. Cam...
18 Replies

6309 Views

Last post by silverbullet
15 Aug 2022, 06:11
So a customer brings me a DJ core...

Last post by silverbullet « 09 Aug 2022, 15:45
Replies: 6
by silverbullet » 08 Aug 2022, 15:38

All original VW Bruss seals and factory Elring gaskets, but stamped R-C where the engine number should be. Flanged hex head bolts on the flywheel...

6 Replies

1771 Views

Last post by silverbullet
09 Aug 2022, 15:45
What bits would I need off a donor car for a 1.8T conversion?

Last post by mike.g « 09 Aug 2022, 15:11

by mike.g » 09 Aug 2022, 15:11

It merely a thought at the moment but, I’ve bought an accident damaged TT for the interior for my own car which was a little shabby.
I essentially...

0 Replies

2228 Views

Last post by mike.g
09 Aug 2022, 15:11
Best insurance company for Modified T25

Last post by AlexDal « 03 Aug 2022, 00:09
Replies: 10
by Grogg » 06 Feb 2020, 14:29

Hello everyone,

I’ve recently had a Subaru conversion to a EJ20 N/A and my insurance is due shortly :(

I was wondering if anyone had any...

10 Replies

4601 Views

Last post by AlexDal
03 Aug 2022, 00:09
Bosch 0 460 494 187 diesel pump

Last post by ZsZ « 11 Jul 2022, 19:04
Replies: 3
by t25adict » 09 Jul 2022, 14:22

I am gradually going through parts I have collected over many years. I have found a Bosch 0 460 494 187 diesel pump that from what I remember came...

3 Replies

1361 Views

Last post by ZsZ
11 Jul 2022, 19:04
AAZ Timing belt kit

Last post by ajsimmo « 10 Jul 2022, 16:48
Replies: 2
by Al Housman » 10 Jul 2022, 11:24

I feel that my truck needs a new timing belt soon but two kits are listed, depending on engine number.
Does anyone know if there are major...

2 Replies

1309 Views

Last post by ajsimmo
10 Jul 2022, 16:48
subaru issue help needed

Last post by silverbullet « 08 Jul 2022, 20:09
Replies: 2
by kevindouglas4130 » 07 Jul 2022, 09:49

Hi Guys,

Im looking for some advise on an intermittent problem with my 86 Syncro, Subaru 2.5 swap.
Randomly it will lose power /choke while driving,...

2 Replies

1259 Views

Last post by silverbullet
08 Jul 2022, 20:09
Help identifying mount console for Injection Pump

Last post by siwalker93 « 25 Jun 2022, 13:37
Replies: 5
by siwalker93 » 22 Jun 2022, 13:30

I have an mTDI AFN with a Bosch VE pump from a 2.9 Kia Sedona. I'm looking for a specific pump bracket to run this set up and wondered if anyone had...

5 Replies

1468 Views

Last post by siwalker93
25 Jun 2022, 13:37
Mass Air Flow Sensor, which replacement?

Last post by rollercoaster « 10 Jun 2022, 20:16
Replies: 3
by rollercoaster » 08 Jun 2022, 19:47

Thought to ask, as theres a wide choice,
and price range,
and is it too simple to just say get the same?

My AGU motor felt like it was running out...

3 Replies

1367 Views

Last post by rollercoaster
10 Jun 2022, 20:16
AAZ High Revs SOLVED

Last post by sauce1001 « 14 May 2022, 10:30
Replies: 6
by sauce1001 » 13 May 2022, 16:38

Hi all, taken my van for a short test drive today, when it hit about 3000 it didn't drop back down until I turned it off then back on and it was back...

6 Replies

1573 Views

Last post by sauce1001
14 May 2022, 10:30
Yet Another AAZ question

Last post by sauce1001 « 12 May 2022, 19:00
Replies: 10
by sauce1001 » 11 May 2022, 17:50

A very basic question I know, is this the engine oil drain plug?

10 Replies

1942 Views

Last post by sauce1001
12 May 2022, 19:00
Old Diesel

Last post by Oldiebut goodie « 12 May 2022, 17:00
Replies: 4
by sauce1001 » 11 May 2022, 17:27

My recently purchased Multivan had sat unused for 3+ years when I bought it. It came with half a tank of diesel. I'm about to do oil and filters...

4 Replies

1346 Views

Last post by Oldiebut goodie
12 May 2022, 17:00
Fuel Filter Advice AAZ

Last post by sauce1001 « 12 May 2022, 16:41
Replies: 3
by sauce1001 » 12 May 2022, 11:54

Is there a procedure to follow when installing this type of fuel filter? Should I clamp the 2 hoses before releasing then install the new one? I'm...

3 Replies

1255 Views

Last post by sauce1001
12 May 2022, 16:41
AAZ Coolant Tank

Last post by sauce1001 « 09 May 2022, 20:01
Replies: 8
by sauce1001 » 09 May 2022, 14:14

Behind my number plate flap is what looks like a coolant expansion tank. It's bone dry and has no cap on it and there's a 2nd tank in the engine...

8 Replies

1752 Views

Last post by sauce1001
09 May 2022, 20:01
Diesel Injector Querie UPDATE

Last post by sauce1001 « 08 May 2022, 18:32
Replies: 11
by sauce1001 » 07 May 2022, 09:18

Hi all, my van's running a 1.9TDI conversion, engine code ALH.

It's very smokey on start up, no smoke when idling but lots of smoke when revved....

11 Replies

2472 Views

Last post by sauce1001
08 May 2022, 18:32
Smoke on start up

Last post by sauce1001 « 07 May 2022, 18:38

by sauce1001 » 07 May 2022, 18:38

My 1.9 converted (AAZ I think) has some issues when it starts. Lots of blue smoke, next to none when idling, not as bad but some when revved after a...

0 Replies

1958 Views

Last post by sauce1001
07 May 2022, 18:38
VW V8 Project

Last post by JamesKT25 « 07 May 2022, 08:44
Replies: 95
by DentedDevon » 29 Sep 2010, 21:01
1

…

3

4

5

6

7
We've been on the lookout for a van after 18 vanless months.
Saw some rough ones and some nice (new paint hiding who knows what ?)
Saw this one on...
95 Replies

108187 Views

Last post by JamesKT25
07 May 2022, 08:44
Good VW garage for a T3 engine job?

Last post by Fab4Freddy « 20 Apr 2022, 21:03
Replies: 2
by Fab4Freddy » 20 Apr 2022, 12:32

Hi all - does anyone have a recommendation for a good, reliable, knowledgeable VW specialist within 25 miles of DE13 that could handle an *engine...

2 Replies

1242 Views

Last post by Fab4Freddy
20 Apr 2022, 21:03
Re-build or re-con?

Last post by Fab4Freddy « 16 Apr 2022, 17:05
Replies: 4
by Fab4Freddy » 11 Apr 2022, 14:55

Hi all,

I've got a 1985 T3 Transporter that was a 1.6 petrol but was later upgraded to a 1.9 diesel (the engine code escapes me for the moment but...

4 Replies

1445 Views

Last post by Fab4Freddy
16 Apr 2022, 17:05
Oil catch can/ Provent

Last post by hubcap61 « 11 Apr 2022, 15:38
Replies: 1
by T25boy71 » 11 Apr 2022, 10:39

Hi
I’m going to fit a oil catch can anyone got any experience in doing it and what one to go for?

1 Replies

1118 Views

Last post by hubcap61
11 Apr 2022, 15:38
AAZ installation general advice

Last post by Timburrows « 09 Apr 2022, 14:48
Replies: 3
by Stuart57 » 03 Apr 2022, 17:40

Hi, I have an 86 T25 that had a seized 1.6 JX engine, I have taken it out (kept everything for now) I now have a nice aaz engine to go in. So far I...

3 Replies

1484 Views

Last post by Timburrows
09 Apr 2022, 14:48

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