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

exhaust

Last post by what2do « 17 Nov 2014, 22:28
Replies: 7
by Dynamite-dindin » 12 Nov 2014, 20:36

hi can anyone tell me what the difference between aaz manifold and jx manifold and how can I tell which one I have many thanks dan

7 Replies

2671 Views

Last post by what2do
17 Nov 2014, 22:28
1981 t25 gti wont run

Last post by soniquethedog « 16 Nov 2014, 20:17
Replies: 4
by soniquethedog » 16 Nov 2014, 16:05

hello , hope someone can help me , i had my 1981 t25 8v gti engines ecu chipped for more power/torque , but when it came back it wouldnt start , so i...

4 Replies

1668 Views

Last post by soniquethedog
16 Nov 2014, 20:17
OK I Have to improve my MPG, thoughts please :)

Last post by silverbullet « 16 Nov 2014, 06:53
Replies: 25
by irishkeet » 26 Oct 2014, 18:09
1

2
Hello

Currently I have a 2L CU Aircooled westy, love it and the green colour but I don't love the MPG.
Its on twin webbers and its been set up on a...
25 Replies

10883 Views

Last post by silverbullet
16 Nov 2014, 06:53
So... you think your bus is quick.

Last post by scottbott « 15 Nov 2014, 21:24
Replies: 11
by silverbullet » 14 Nov 2014, 14:25

onclick= window.open(this.href);return false;

11 Replies

3347 Views

Last post by scottbott
15 Nov 2014, 21:24
A4 Gearbox possible?

Last post by Titus A Duxass « 11 Nov 2014, 05:31
Replies: 1
by mcstockerg » 10 Nov 2014, 23:17

Hello there! I am fiitting a 19 diesel to the T25 after removing the 16 that was in there. I'd be grateful if anyone could advise me of the...

1 Replies

1431 Views

Last post by Titus A Duxass
11 Nov 2014, 05:31
Sharan engine?

Last post by RogerT « 06 Nov 2014, 20:58
Replies: 3
by dekhelia » 06 Nov 2014, 13:45

Got a chance for a Sharan engine - however, it's out of the car, and the car has gone to the crusher. The guy says that he doesn't have anything else...

3 Replies

2043 Views

Last post by RogerT
06 Nov 2014, 20:58
found a good TDI pedal!

Last post by hotpod « 06 Nov 2014, 14:55
Replies: 42
by lloydy » 25 May 2012, 19:11
1

2

3
I have a tdi conversion, and i'm using a fly by wire pedal. Which although works fine, is a bit of a awkward angle for your ankle
So did a bit of...
42 Replies

20249 Views

Last post by hotpod
06 Nov 2014, 14:55
Injection pump timing question

Last post by dave friday « 03 Nov 2014, 22:12
Replies: 5
by dekhelia » 02 Nov 2014, 17:50

Finally bought a dial gauge, as I've known for a while (ever since the installation of the AAZ engine a couple of summers ago, in fact) that the...

5 Replies

2456 Views

Last post by dave friday
03 Nov 2014, 22:12
2.1dj engine

Last post by ricicles « 11 Nov 2014, 19:52
Replies: 20
by dumbo » 02 Nov 2014, 22:58
1

2
i have a 19 dg engine and would like a bigger 2.1 dj so what do i need
a complete engine with ecu or run on 1986 dg carb
injection different fuel...
20 Replies

11136 Views

Last post by ricicles
11 Nov 2014, 19:52
T25 with 1.9TD 1994 Passat Engine

Last post by T25Bluealloy « 03 Nov 2014, 08:57

by T25Bluealloy » 03 Nov 2014, 08:57

Hi ya, i am new here and I have a question regarding the alternator on my 1994 1.9TD passat engine i have in my T25..

I need a new or one out of a...

0 Replies

1617 Views

Last post by T25Bluealloy
03 Nov 2014, 08:57
Clutch

Last post by Atomic « 29 Oct 2014, 09:44
Replies: 2
by daddyjim » 22 Oct 2014, 18:14

Hi all,

I have a 1989 golf gti engine fitted with a dk code box and need a new clutch, could anyone tell me what clutch I need please or will a...

2 Replies

1718 Views

Last post by Atomic
29 Oct 2014, 09:44
Remapping subaru

Last post by Delbertini « 26 Oct 2014, 13:01
Replies: 4
by Delbertini » 25 Oct 2014, 23:19

Need some advice on remapping my subaru EJ25 n/a, runs fine and should probably leave it alone but just can't help tinkering. I know remapping a n/a...

4 Replies

1816 Views

Last post by Delbertini
26 Oct 2014, 13:01
Money no object ...

Last post by silverbullet « 25 Oct 2014, 17:28
Replies: 18
by dekhelia » 21 Oct 2014, 19:55
1

2
(not to mention time) ... but if you had all the resources you wanted, what motor would you install in a T25/T3?

Personally, I'd put in a Jaguar...
18 Replies

6646 Views

Last post by silverbullet
25 Oct 2014, 17:28
1.9 DG to 1.9 1Y

Last post by bobby-gg « 22 Oct 2014, 18:01
Replies: 3
by tomdibb » 22 Oct 2014, 15:08

Yo! This time next year I am going to drive my t25 to Australia. It is currently running a 1.9 DG petrol and after chatting to a few people it looks...

3 Replies

1804 Views

Last post by bobby-gg
22 Oct 2014, 18:01
What gearbox would you recommend....l

Last post by Chiefy « 22 Oct 2014, 07:40
Replies: 35
by Chiefy » 07 Sep 2014, 07:02
1

2

3
I am running a 1Y engine mated to a 1.9 petrol 4 speed box and it sounds like it's revving it's nuts off at 55mph :shock:
I'm guessing a different...
35 Replies

15455 Views

Last post by Chiefy
22 Oct 2014, 07:40
Impossible things !

Last post by glennada « 19 Oct 2014, 13:24
Replies: 3
by glennada » 19 Oct 2014, 12:49

Hello all,
I am just putting together a 1y to drop into our van after it blew its head in a particularly remote and picturesque part of Dartmoor and...

3 Replies

1635 Views

Last post by glennada
19 Oct 2014, 13:24
Clutch choice

Last post by ajsimmo « 17 Oct 2014, 22:57
Replies: 3
by docklad » 14 Oct 2014, 18:25

I have a T25 with a 1.9D 1y engine fitted. I ordered a clutch from Brickwerks for the early 1.9d but it doesn't fit. Does anyone know what clutch I...

3 Replies

2077 Views

Last post by ajsimmo
17 Oct 2014, 22:57
The 'choke' on a diesel motor ...

Last post by dekhelia « 16 Oct 2014, 05:29
Replies: 5
by dekhelia » 15 Oct 2014, 17:45

... so what does it actually do? (I realise it's not a 'choke' in the classic sense, of restricting air and increasing fuel.)

The reason I ask is...

5 Replies

4930 Views

Last post by dekhelia
16 Oct 2014, 05:29
AAZ Brickwerks Throttle Conversion

Last post by phil_b « 14 Oct 2014, 12:55
Replies: 1
by PipH657HPE » 12 Oct 2014, 20:34

Hi. I'm wondering if anyone has had the same problems as I'm having with the throttle lever modifications. Unfortunately, the lower level moved on...

1 Replies

1736 Views

Last post by phil_b
14 Oct 2014, 12:55
AAG gti ecu non starter

Last post by jim potter « 13 Oct 2014, 17:51
Replies: 3
by soniquethedog » 13 Oct 2014, 15:02

hello , i have had a 2.0 golf gti 8v fitted to my t25 , i recently had a socket fitted to the ecu so that i could fit a performance chip , but when i...

3 Replies

1825 Views

Last post by jim potter
13 Oct 2014, 17:51
Torque App for Android

Last post by discipleofsketch « 10 Oct 2014, 14:00
Replies: 1
by hotpod » 10 Oct 2014, 13:50

does anybody use Torque App for android?
i bought the pro version ( because the free version wouldnt work with my bluetooth OBD adaptor but pro...

1 Replies

1559 Views

Last post by discipleofsketch
10 Oct 2014, 14:00
T25 final drive ratio

Last post by Andyvandy « 09 Oct 2014, 16:09
Replies: 2
by Andyvandy » 08 Oct 2014, 16:38

Hi,

Having had my Westy off the road for a few years I am about to start on the long haul of getting it back on the road.
It was originally a 1.6...

2 Replies

1283 Views

Last post by Andyvandy
09 Oct 2014, 16:09
What is the correct vacuum setup for a 1Z engine conversion

Last post by syncroandy « 08 Oct 2014, 21:31
Replies: 6
by KR1S 76 » 03 Oct 2014, 11:43

Trying to figure out what the correct setup for the vacuum lines are... and after hours of trying to search online I've come up with this setup...

6 Replies

9038 Views

Last post by syncroandy
08 Oct 2014, 21:31
Petrol Rev counter tdi conversion ??

Last post by KINGPRAWN « 07 Oct 2014, 09:23
Replies: 8
by KINGPRAWN » 29 Sep 2014, 12:39

Did somebody recently post info on hot to get my taco working after TDI conversion ... Using RJES gadget ???
Can't find it anywhere ??

8 Replies

4669 Views

Last post by KINGPRAWN
07 Oct 2014, 09:23
auto governor advice please re atf

Last post by toomanytoys « 06 Oct 2014, 13:05
Replies: 2
by vanagonej25 » 14 Sep 2014, 09:28

Ok got a scooby ej 25 on a auto box. Noticed a good size wet patch around the governor seal so going to attempt to replace this seal. At same time...

2 Replies

1381 Views

Last post by toomanytoys
06 Oct 2014, 13:05
Original 1.6 head on 1y

Last post by smith748 « 06 Oct 2014, 06:33
Replies: 1
by smith748 » 19 Aug 2014, 21:25

Hi all now correct me if I'm wrong but could a fit my head off my 1.6 to 1.9 out of mk3 golf think its the 1y. Reason I ask is head it cracked on...

1 Replies

1087 Views

Last post by smith748
06 Oct 2014, 06:33
MTDI Where Does This Pipe Go?

Last post by GoldSyncro « 04 Oct 2014, 13:06
Replies: 4
by GoldSyncro » 21 Sep 2014, 12:10

Whilst sorting out an unrelated issue I came across an unattached pipe which originates from the turbo. I assume it originally connected to the N75...

4 Replies

2660 Views

Last post by GoldSyncro
04 Oct 2014, 13:06
AAZ conversion with leaky sump

Last post by HarryMann « 04 Oct 2014, 11:25
Replies: 8
by H.Mc » 15 Sep 2014, 11:20

Hi All, after a good few months we finally finsihed my AAZ conversion on my van... it runs beautifully and can now travel up hills on the motorway...

8 Replies

4061 Views

Last post by HarryMann
04 Oct 2014, 11:25
The clutch killer. New specs and ideas needed.

Last post by HarryMann « 04 Oct 2014, 11:09
Replies: 18
by poshbuggers » 19 Sep 2014, 09:25
1

2
18 months in with my Golf 2.0l GTI 8v AGG conversion.

It's been a dream in general use, returning good mpg, power and reliability....but it isn't...
18 Replies

6866 Views

Last post by HarryMann
04 Oct 2014, 11:09
jx airbox relocation on aaz conversion.

Last post by HarryMann « 04 Oct 2014, 10:50
Replies: 4
by PipH657HPE » 28 Sep 2014, 10:49

hi, on with my aaz conversion, and with using the aaz inlet manifold have now found the air box will not fit where it was previously, have read on...

4 Replies

2848 Views

Last post by HarryMann
04 Oct 2014, 10:50
spare ECU/more modern ECU for 1z?

Last post by discipleofsketch « 02 Oct 2014, 13:04
Replies: 4
by discipleofsketch » 30 Sep 2014, 09:17

I was wondering if it is a straight swap if I wanted to swap my ECU for a later one? Mine is from a 1995 golf and isn't proper OBDII, so i'd like to...

4 Replies

2642 Views

Last post by discipleofsketch
02 Oct 2014, 13:04
Which diesel engine mount do I have?

Last post by mig « 29 Sep 2014, 09:21
Replies: 3
by mig » 26 Sep 2014, 11:24

My complete diesel conversion kit came with 2 LH ( I think) engine mounts

They have different brackets fitted,any one know which is correct?
Is...

3 Replies

1842 Views

Last post by mig
29 Sep 2014, 09:21
Petrol Gearbox Parts on Diesel Bell housing ?

Last post by mig « 29 Sep 2014, 09:13
Replies: 1
by mig » 15 Sep 2014, 11:33

Purchased a bare diesel bell housing for a petrol to diesel conversion.The seller assured me everything from the petrol bell housing would swap...

1 Replies

1251 Views

Last post by mig
29 Sep 2014, 09:13
Fix or swap?

Last post by mrhutch « 23 Sep 2014, 17:38
Replies: 2
by LDN-BLN » 23 Sep 2014, 14:37

Hey all,

I have just bought a 1983 T25 with a 1.9 petrol wasserbox. The vehicle has been standing for 2+ years :shock: and things have ceased up...

2 Replies

1308 Views

Last post by mrhutch
23 Sep 2014, 17:38
New loom

Last post by syncroandy « 23 Sep 2014, 07:08
Replies: 2
by tattoojohnny » 23 Sep 2014, 01:43

Morning all. I've had an auto electrician out to my bus as have had a few electrical issues. He managed to sort out some of the problems but said I...

2 Replies

2711 Views

Last post by syncroandy
23 Sep 2014, 07:08
2.1 WBX to 1.9 TDI

Last post by KINGPRAWN « 22 Sep 2014, 13:29
Replies: 6
by KINGPRAWN » 21 Sep 2014, 13:19

if you're considering the conversion but not sure ...... DO IT !!!! You can't possibly imagine how much better it is ... And worth every penny and...

6 Replies

2443 Views

Last post by KINGPRAWN
22 Sep 2014, 13:29
aaz port blanked off - why?

Last post by ELVIS « 19 Sep 2014, 21:49
Replies: 1
by PipH657HPE » 19 Sep 2014, 20:36

Hi. I'm in the middle of converting my destroyed 1.6TD to a AAZ. On removal of the exhaust manifold of the AAZ, the end port, nearest the fly wheel...

1 Replies

1739 Views

Last post by ELVIS
19 Sep 2014, 21:49
Fitting a bigger Engine - Help

Last post by garyd « 19 Sep 2014, 18:55
Replies: 7
by Pastdown » 12 Sep 2014, 11:37

Hi all,

I'm looking at buying a T25 Syncro crew cab and I'd like it to tow a trailer with a VW bay. What engine would you recommend, would a 1.9 AAZ...

7 Replies

3389 Views

Last post by garyd
19 Sep 2014, 18:55
low oil pressure on start up 1z engine

Last post by green thing « 18 Sep 2014, 22:16

by green thing » 18 Sep 2014, 22:16

I`ve been chasing this problem for over a year but I`ll try and be brief. I put the engine in my t25 and everthing was fine, (oil light went out in a...

0 Replies

1604 Views

Last post by green thing
18 Sep 2014, 22:16
TDI conversion in WBX

Last post by KINGPRAWN « 15 Sep 2014, 21:56
Replies: 11
by KINGPRAWN » 13 Sep 2014, 10:17

Just had the conversion done and have to say I'm VERY pleased .. Can anybody tell me if the n75 valve should click constantly as soon as the ignition...

11 Replies

3417 Views

Last post by KINGPRAWN
15 Sep 2014, 21:56
AHU fuel pump problem

Last post by hotpod « 15 Sep 2014, 11:13
Replies: 10
by hotpod » 03 Sep 2014, 00:10

I have almost finished an install of an AHU tdi to my camper and i had to strip and clean the fuel pump as it wasnt pumping. it would just about...

10 Replies

8735 Views

Last post by hotpod
15 Sep 2014, 11:13
Charge cooler and oil cooler radiator placement

Last post by Epiphone « 13 Sep 2014, 15:28
Replies: 2
by ninja.turtle007 » 25 Aug 2014, 16:23

I'm going to have an oil cooler fitted to my AFN Tdi. My current thinking is oil cooler rad at the bottom and charge cooler radiator at the top. Both...

2 Replies

2499 Views

Last post by Epiphone
13 Sep 2014, 15:28
ALH pump on an AHU? can i?

Last post by hotpod « 11 Sep 2014, 08:21
Replies: 8
by hotpod » 07 Sep 2014, 19:30

i have a fuel pump problem ( in another thread) and have just been offered a vw caddy with a broken cam belt for not much money. it has an ALH engine...

8 Replies

4014 Views

Last post by hotpod
11 Sep 2014, 08:21
Air Cooled Radiator (Air Cooled to Water Cooled)

Last post by Oldiebut goodie « 10 Sep 2014, 20:36
Replies: 4
by jonnydub » 26 May 2014, 23:10

Can anyone tell me if the upper radiator mount on a watercooled T25 is a) has an official part number (I can't find it on Vagcat) and b) if they are...

4 Replies

2646 Views

Last post by Oldiebut goodie
10 Sep 2014, 20:36
top end speed of our 1.9 D 1Y campervan enquiry

Last post by Tracy&Andy « 10 Sep 2014, 18:14
Replies: 14
by breaker-bar-jon » 02 Sep 2013, 20:13

Hello everyone, I'm new to this forum thing, so please bear with us,
We've a T25 campervan which was a 1.7 Diesel Leisure drive 1989. I've just...

14 Replies

11500 Views

Last post by Tracy&Andy
10 Sep 2014, 18:14
AAZ alternator belt??

Last post by tattoojohnny « 10 Sep 2014, 09:16
Replies: 4
by tattoojohnny » 05 Sep 2014, 22:23

The belt that runs around the water pump and alternator has just snapped on me and I'm not sure what/where to get a replacement or even know what it...

4 Replies

2862 Views

Last post by tattoojohnny
10 Sep 2014, 09:16
Engine fantasy shopping...

Last post by triumph2.5pi « 09 Sep 2014, 18:24

by triumph2.5pi » 09 Sep 2014, 18:24

Would an Audi 3.2 V6 fit in a T25? I've read about Audi 2.6/2.8's being fitted but can't find anything on a 3.2. Is that because it's too much...

0 Replies

1237 Views

Last post by triumph2.5pi
09 Sep 2014, 18:24
Engine advice / recommendation please

Last post by dekhelia « 09 Sep 2014, 16:28
Replies: 4
by vaguelyfamiliar » 27 Aug 2014, 13:57

I recently (drunkenly :oops: ) purchased a project T25 from eBay that comes pretty much as a rolling shell and am looking at what engine / gearbox I...

4 Replies

2220 Views

Last post by dekhelia
09 Sep 2014, 16:28
5 times on a AA truck now

Last post by billy739 « 09 Sep 2014, 08:26
Replies: 21
by Edition38 » 02 Sep 2014, 16:00
1

2
After spending a lot of money on getting my 1.6 td so called fixed here in the north east it went and spat all it's guts out on the motor way on...
21 Replies

8998 Views

Last post by billy739
09 Sep 2014, 08:26
Electric Vehicle EV conversion

Last post by willpom « 08 Sep 2014, 09:40
Replies: 2
by willpom » 03 Sep 2014, 10:03

My end goal is an electric conversion. I came across this collection of videos taking you through the process of conversion if anyone is interested....

2 Replies

1938 Views

Last post by willpom
08 Sep 2014, 09:40

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