T25 Alternative Engine Forum

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Most liked posts	Author	Posted	Liked	Forum
EJ20 Engine Overheating - Solutions?	Basilakios	23 May 2026, 11:54	2 times this week	T25 Alternative Engine Forum

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Last post

1.9 TDI AFN Conversion Parts Required

Last post by jacharl « 28 Mar 2014, 20:19
Replies: 2
by knipey » 23 Feb 2014, 15:56

Hi all,

I recently did what no one should ever do and that is to buy a car off eBay without even seeing it first :shock: I guess I'm just a...

2 Replies

1662 Views

Last post by jacharl
28 Mar 2014, 20:19
Vcds lite

Last post by lloydy « 26 Mar 2014, 14:26
Replies: 6
by Cableguy » 26 Mar 2014, 13:14

Finally got round to plugging the eBay cable in after 2 years and guess what?
It doesn't bleedin work!!
I get the vcds screen etc and changed all the...

6 Replies

2313 Views

Last post by lloydy
26 Mar 2014, 14:26
Ej25 where's your ecu?

Last post by aruntaylor « 25 Mar 2014, 21:32

by aruntaylor » 25 Mar 2014, 21:32

Just getting to start my wiring soon so wondering how and where any of you have put your ECU etc and if you have any tips for my wiring job.

The...

0 Replies

1210 Views

Last post by aruntaylor
25 Mar 2014, 21:32
K jet warm running issues

Last post by Time Bomb Tom « 24 Mar 2014, 20:34
Replies: 2
by Time Bomb Tom » 23 Mar 2014, 16:29

Hi guys my k jet engined van starts and runs fine untill it warms up then it won't idle, if it's turned off it will start again but if it's left a...

2 Replies

1528 Views

Last post by Time Bomb Tom
24 Mar 2014, 20:34
Engine transplant

Last post by H.Mc « 23 Mar 2014, 16:35
Replies: 11
by H.Mc » 02 Dec 2013, 19:12

Hi All, ive read the wiki page and trawled endless pages on line but Ive melted my head by doing so. I have a 1.6 diesel CS engine in my van and want...

11 Replies

4533 Views

Last post by H.Mc
23 Mar 2014, 16:35
gti 8v engine choke issues

Last post by Time Bomb Tom « 21 Mar 2014, 15:46
Replies: 30
by Time Bomb Tom » 11 Mar 2014, 13:57
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HI Guys im running an 8v golf gti engine does the choke need a switch adding as my van will only start with the multiplug pulled off the choke but...
30 Replies

9729 Views

Last post by Time Bomb Tom
21 Mar 2014, 15:46
1.8T (Syncro) conversion

Last post by jim potter « 21 Mar 2014, 01:26
Replies: 1
by poshbuggers » 20 Mar 2014, 22:53

I've seen these engines fitted in a few vans now - particularly in the US. A few examples are:

They look a great conversion and power seems to...

1 Replies

1422 Views

Last post by jim potter
21 Mar 2014, 01:26
New T25 with AAZ

Last post by Celtic « 20 Mar 2014, 22:14
Replies: 7
by Celtic » 16 Feb 2014, 10:49

Hi, new member on here, from Isle of Man. My dad has bought a 1982 T25 with an AAZ motor fitted. I am knowledgable about a good few classic cars and...

7 Replies

4232 Views

Last post by Celtic
20 Mar 2014, 22:14
AAZ alternator belt

Last post by Candyred89 « 19 Mar 2014, 20:30

by Candyred89 » 19 Mar 2014, 20:30

Hi, hopefully someone can help, my van keeps spitting off its alternator belt, it's likely that a pulley is out of alignment, is there an easy way to...

0 Replies

1097 Views

Last post by Candyred89
19 Mar 2014, 20:30
ady differences are they both suitable for a t25?

Last post by silverbullet « 18 Mar 2014, 14:20
Replies: 4
by Cyrus » 06 Mar 2014, 18:14

I'm looking at a suitable 2.0L replacement but noticed there's a difference in ady engines
This on looks like the standard agg/ ady engine

But...

4 Replies

3464 Views

Last post by silverbullet
18 Mar 2014, 14:20
oil capacity CS to AEF engine

Last post by matt brighton « 14 Mar 2014, 18:10
Replies: 2
by matt brighton » 14 Mar 2014, 07:09

Hi

Converted my 1.6 CS to 1.9 AEF (non turbo) some time ago and want to check total oil capacity.

CS engine capacity is 4.5 ltrs

AEF Engine...

2 Replies

1343 Views

Last post by matt brighton
14 Mar 2014, 18:10
Gearbox change

Last post by sciroccotune « 12 Mar 2014, 15:17
Replies: 17
by daddyjim » 25 Feb 2014, 18:46
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2
Hi folks, my gearbox has gone on my t25 so I am trying to replace it. I have a mk2 golf gti engine in there and the old gearbox was a ALD code from...
17 Replies

6262 Views

Last post by sciroccotune
12 Mar 2014, 15:17
AAZ alternator belt

Last post by Candyred89 « 10 Mar 2014, 14:22

by Candyred89 » 10 Mar 2014, 14:22

My van has currently an AAZ engine td, for some reason it is going through alternator belts, one has snapped recently and the current one is starting...

0 Replies

1014 Views

Last post by Candyred89
10 Mar 2014, 14:22
Up rated injectors

Last post by andypandy1930 « 09 Mar 2014, 22:07
Replies: 5
by dave friday » 09 Mar 2014, 10:26

As above anyone fitted Mario's up rated injectors? Elvis I seem to remember you fitted some,any good,what sort of improvement?.
Ta.

5 Replies

2772 Views

Last post by andypandy1930
09 Mar 2014, 22:07
1Yfan belt slipping

Last post by gary1998 « 09 Mar 2014, 04:02
Replies: 3
by hefti » 06 Mar 2014, 12:02

So I'm pretty sure my van has a 1y engine conversion from everything I've read. Former owner was no help on this issue. Its a 1.9 diesel for...

3 Replies

1557 Views

Last post by gary1998
09 Mar 2014, 04:02
Which Gearbox would be best - EJ20

Last post by jamesc76 « 03 Mar 2014, 21:39
Replies: 2
by Kevster74 » 26 Feb 2014, 00:17

Hi All

I have a 2.0 na EJ20 powered van, running what i believe to be its standard ABD 4 speed box. Would like to turn it into 5 speed to improve...

2 Replies

1747 Views

Last post by jamesc76
03 Mar 2014, 21:39
Wiring diagrams for AHU and AFN?

Last post by ninja.turtle007 « 01 Mar 2014, 18:04
Replies: 2
by ninja.turtle007 » 01 Mar 2014, 17:32

I need a wiring diagrams for AHU and AFN. Is there anywhere online I can download them from?

2 Replies

2073 Views

Last post by ninja.turtle007
01 Mar 2014, 18:04
Your opinions please, best 5 speed TDI box

Last post by Cableguy « 28 Feb 2014, 16:26
Replies: 8
by daddiehomiedog » 27 Feb 2014, 13:51

I keep reading different threads about various engine gearbox installs, but what's the best 5 speed box for a1z 1.9tdi, what adapters are needed and...

8 Replies

4201 Views

Last post by Cableguy
28 Feb 2014, 16:26
AAZ Oil cooler Q

Last post by ninja.turtle007 « 24 Feb 2014, 20:49
Replies: 10
by ELVIS » 31 Jan 2014, 17:05

What size are any of you using as oil cooler in top grille section of a T3 for an AAZ?

Currently have a brickwerks one in lower grille but want to...

10 Replies

4118 Views

Last post by ninja.turtle007
24 Feb 2014, 20:49
Intercooler/charge cooler in a pickup?

Last post by toomanytoys « 24 Feb 2014, 14:18
Replies: 11
by toomanytoys » 17 Feb 2014, 23:17

Anyone running a chargecooler or intercooler in a pickup?
If you have an intercooler.. how have you managed to vet enough airflow over it?...

11 Replies

3516 Views

Last post by toomanytoys
24 Feb 2014, 14:18
ultimate engine

Last post by ladybird « 23 Feb 2014, 21:46
Replies: 42
by ladybird » 27 Nov 2013, 15:13
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2

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Anyone know whats the best ,most reliable,easy to fix ,and good mpg engine for the t25 to replace the 2.1 water boxer.regardless of rarity and cost
42 Replies

15479 Views

Last post by ladybird
23 Feb 2014, 21:46
Who's best for TDI conversion?

Last post by v-lux « 23 Feb 2014, 16:47
Replies: 7
by dalester » 21 Feb 2014, 12:27

Hi

Have used the Search, but didn't come up with much....can anyone tell me if there are any garages, or people, that can do drive-in / drive-out...

7 Replies

3754 Views

Last post by v-lux
23 Feb 2014, 16:47
1.9 AAZ T25 Glow Plug switched live problem

Last post by daveyk1975 « 23 Feb 2014, 16:03
Replies: 3
by daveyk1975 » 22 Feb 2014, 17:02

Hi

I have been having problems trying to start my T25 since I accidently shorted a live wire whilst reconnecting the cig lighter.
Further to my last...

3 Replies

2887 Views

Last post by daveyk1975
23 Feb 2014, 16:03
Audi 5 pot options

Last post by toomanytoys « 21 Feb 2014, 23:13
Replies: 5
by toomanytoys » 24 Sep 2013, 16:42

Got the chance of my old audi 100 2.2 and thinking of putting it in either the syncro doka or the 2wd caravelle..

South african bellhousing is of...

5 Replies

2534 Views

Last post by toomanytoys
21 Feb 2014, 23:13
Performance pump for AAZ?

Last post by ELVIS « 20 Feb 2014, 23:33
Replies: 1
by ELVIS » 20 Feb 2014, 16:38

Got some good info from brother light with regards to fitting a 2.1 French pump to an AAZ but looking at coat of them on fleabay and unknown...

1 Replies

1085 Views

Last post by ELVIS
20 Feb 2014, 23:33
AAZ + PD manifold

Last post by ELVIS « 20 Feb 2014, 23:32
Replies: 3
by ELVIS » 07 Feb 2014, 16:58

Simple, does a pd130 manifold fit on an AAZ ie ports match up?

3 Replies

1692 Views

Last post by ELVIS
20 Feb 2014, 23:32
Inline fuel filter saves the day, and £££'s!

Last post by Oldiebut goodie « 20 Feb 2014, 19:39
Replies: 11
by tinn25 » 11 Feb 2014, 17:14

Hi, My T25 has a 1.9 1y diesel engine and the exhaust was throwing out strong smelling white smoke, losing power and misfiring. I've read a few...

11 Replies

6242 Views

Last post by Oldiebut goodie
20 Feb 2014, 19:39
AAZ install. New turbo leaking out exhaust...

Last post by sirivor70 « 19 Feb 2014, 19:25
Replies: 6
by sirivor70 » 16 Feb 2014, 14:47

Hi there. After much searching I am going to write my own post as I cannot seem to find the right answer.

I have just gotten my bus back after an...

6 Replies

2231 Views

Last post by sirivor70
19 Feb 2014, 19:25
1.9 AAZ T25 No GP light

Last post by daveyk1975 « 16 Feb 2014, 19:43
Replies: 8
by daveyk1975 » 11 Feb 2014, 18:06

I have no glow plug light on the dash and the van will not turn over.

I have been having problems starting it before but that was due to an air...

8 Replies

3187 Views

Last post by daveyk1975
16 Feb 2014, 19:43
Quick Glow question?

Last post by bigherb « 16 Feb 2014, 19:22
Replies: 5
by Jim D » 15 Feb 2014, 22:14

Hi Everyone,

just a quick question,

when i bought my van it didn't have the glow plugs connected. That part of the engine is from a 1.9 AFN., i...

5 Replies

2197 Views

Last post by bigherb
16 Feb 2014, 19:22
WBX-6 assistance wanted for new project

Last post by silverbullet « 16 Feb 2014, 07:47
Replies: 2
by silverbullet » 16 Feb 2014, 00:17

Without saying too much, I have an idea that would benefit from a little input from a helpful Oettinger WBX-6 owner. Its not actually for that...

2 Replies

1485 Views

Last post by silverbullet
16 Feb 2014, 07:47
DS Tuning Germany email address

Last post by sword70 « 11 Feb 2014, 17:56
Replies: 8
by sword70 » 08 Feb 2014, 12:47

I am looking at getting an engine adapter plate from DS Tuning but cant find an email address for them anywhere.
Anybody on here used them before? do...

8 Replies

4022 Views

Last post by sword70
11 Feb 2014, 17:56
Smart Intercooler on AAZ

Last post by lloydy « 06 Feb 2014, 22:36
Replies: 1
by dcfb77 » 06 Feb 2014, 22:20

Been looking for something that fits behind real lights and the one in my smart car would fit nicely.

The smart car engine is a 700cc turbo. Would...

1 Replies

1674 Views

Last post by lloydy
06 Feb 2014, 22:36
ALH caddy engine to T25?

Last post by lloydy « 01 Feb 2014, 16:20
Replies: 4
by billy739 » 01 Feb 2014, 15:26

easy fit using jx parts ?

can you use the jx / aaz fuel pump?

if fitting to a T25 ?

or is the bellhousng / fitment different? ect

cheers all

4 Replies

2276 Views

Last post by lloydy
01 Feb 2014, 16:20
1.9D 1Y replacement exhaust?

Last post by kit « 31 Jan 2014, 17:13
Replies: 4
by Niander » 27 Jan 2014, 20:49

I need a new one
this van was originally 1.6 D but has been converted to 1Y
would a 1.6 exhaust fit?
where can I buy a new exhaust from for the 1Y?...

4 Replies

2317 Views

Last post by kit
31 Jan 2014, 17:13
Heart set on subaru conversion advice needed

Last post by syncroandy « 29 Jan 2014, 21:26
Replies: 8
by boboro » 26 Jan 2014, 08:35

Hi guys
Before I start I have read the wiki and rjes, just after info from people who have done this,
I have my heart set on a subaru conversion to...

8 Replies

4351 Views

Last post by syncroandy
29 Jan 2014, 21:26
1.8 or 2.0 gti ?

Last post by ferraldog « 28 Jan 2014, 22:17
Replies: 11
by dridgy » 25 Jan 2014, 21:19

hi.
im thinking about changing my diesel engine for a petrol lump.
was thinking about a gti lump.
i would probably preffer the 2.0 over the 1.8 but...

11 Replies

5609 Views

Last post by ferraldog
28 Jan 2014, 22:17
Won't start when engine warm

Last post by Oldiebut goodie « 24 Jan 2014, 20:40
Replies: 11
by keytouch » 22 Jan 2014, 21:16

1Y 1.9 Diesel engine

Starts fine from cold. When warmed up, if I turn it off, it won't start again. It tries but it sounds like the starter motor...

11 Replies

6085 Views

Last post by Oldiebut goodie
24 Jan 2014, 20:40
GM or Renault transplant

Last post by billy739 « 22 Jan 2014, 08:25
Replies: 5
by DEVO » 15 Jan 2014, 14:35

Hi.Im just wondering if anyone has ever used either an opel 2litre inj cam in head engine or a renault 1.8 16v f7p engine in their t25?the reason im...

5 Replies

2548 Views

Last post by billy739
22 Jan 2014, 08:25
AGG Vagcom connector OBD 1? Nov 95 loom

Last post by Cyrus « 15 Jan 2014, 20:28
Replies: 15
by Cyrus » 15 Jan 2014, 13:09
1

2
Im still cutting away at my loom for an agg gti conversion.
I would like to keep the vagcom connector but I cant seem to find it.
I can't see the...
15 Replies

5193 Views

Last post by Cyrus
15 Jan 2014, 20:28
jx turbo on an aaz question

Last post by Al Housman « 15 Jan 2014, 10:06

by Al Housman » 15 Jan 2014, 10:06

A mate(very experienced mechanic) is helping me to swap AAZ engines and is wondering if there should be a pipe from the vacuum pump to the wastegate...

0 Replies

1018 Views

Last post by Al Housman
15 Jan 2014, 10:06
AAZ oil plug

Last post by armyphil « 08 Jan 2014, 17:01
Replies: 4
by B.J » 05 Jan 2014, 11:45

Can someone please confirm I've got this right.

A is the oil drain plug and B is oil return for the turbo? I know, it's as basic as it gets :oops:...

4 Replies

2864 Views

Last post by armyphil
08 Jan 2014, 17:01
TDI immob chip fitted to T25 key

Last post by fufflenarnia « 06 Jan 2014, 22:35
Replies: 46
by lloydy » 19 Jun 2012, 21:16
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4
just thinking out loud really, wondering if its a easy thing to do. At the moment i have the usual and perfectly acceptable TDI key and immob joined...
46 Replies

20695 Views

Last post by fufflenarnia
06 Jan 2014, 22:35
HELP. AAZ Injection pump spurting diesel

Last post by max and caddy « 01 Jan 2014, 00:31
Replies: 5
by dcfb77 » 16 Dec 2013, 17:40

Cant figure out why this plastic thing on my AAZ pump is spurting diesel. Seems to only happen on full throttle.

Any ideas? What does that thing...

5 Replies

4079 Views

Last post by max and caddy
01 Jan 2014, 00:31
RJES exhaust

Last post by chapperss « 30 Dec 2013, 08:26
Replies: 1
by skiron » 29 Dec 2013, 02:52

Is anyone selling a rjes exhaust or can recommend a suitable alternative. I believe they were available a while back from rjes but are not on sale...

1 Replies

1418 Views

Last post by chapperss
30 Dec 2013, 08:26
Subaru Engine and gb installation problem

Last post by skiron « 29 Dec 2013, 02:25
Replies: 8
by skiron » 26 Nov 2013, 14:58

Right have bolted up my engine and gearbox together using rjes bellhousing and engine frame. I have a rather large problem. The gearbox is 50mm short...

8 Replies

4208 Views

Last post by skiron
29 Dec 2013, 02:25
ej22 Running a bit rich, any ideas

Last post by jamesc76 « 28 Dec 2013, 22:36
Replies: 6
by christofy » 12 Dec 2013, 14:51

hi all

I completed an ej22 conversion a few months ago, Everything is working fine and it runs smoothly. The only problem I have is that it is...

6 Replies

3910 Views

Last post by jamesc76
28 Dec 2013, 22:36
AAZ oil pressure problem

Last post by colinthefox « 24 Dec 2013, 19:08
Replies: 1
by halfbakedpixels » 24 Dec 2013, 10:48

Was driving home from Norwich last night in the horrible weather and noticed the oil warning light had come on. So I pulled over into a garage, but...

1 Replies

2261 Views

Last post by colinthefox
24 Dec 2013, 19:08
anywhere in north west recomended?

Last post by faggie « 20 Dec 2013, 21:53
Replies: 3
by joe sando » 04 Dec 2013, 21:49

Looking at non turbo scooby engine for a t25
Anyone in n.west that anyone can recomend to do the work

3 Replies

2074 Views

Last post by faggie
20 Dec 2013, 21:53
VNT turbo indexing

Last post by Kermit'skeeper « 19 Dec 2013, 19:53
Replies: 10
by Kermit'skeeper » 17 Dec 2013, 21:28

I know there are quite a few 80-90 members running AFN engines at 50 degrees and would like to hear everyone's opinions and experience with the angle...

10 Replies

6334 Views

Last post by Kermit'skeeper
19 Dec 2013, 19:53

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