T25 Alternative Engine Forum

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Most liked posts	Author	Posted	Liked	Forum
1y identification	Oldiebut goodie	09 Feb 2026, 18:02	2 times this week	T25 Alternative Engine Forum

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Last post

Need to reduce boost as get-me-home 1z engine

Last post by pirate-pete « 26 Aug 2017, 13:16
Replies: 3
by pirate-pete » 25 Aug 2017, 15:20

On hols in France and all well until yesterday. Had the boost pipe to intercooler pop off seven times on our 300 km journey. On my conversion the...

3 Replies

2947 Views

Last post by pirate-pete
26 Aug 2017, 13:16
Oil change on AAZ

Last post by Middle29 « 25 Aug 2017, 20:32
Replies: 2
by Middle29 » 24 Aug 2017, 11:26

I'm about to do an oil change on an AAZ. Am I correct in assuming 4.5l if I change the oil filter?

I understand an AAZ conversion can have a...

2 Replies

2513 Views

Last post by Middle29
25 Aug 2017, 20:32
1z TDI intercooler

Last post by KINGPRAWN « 25 Aug 2017, 11:03
Replies: 1
by KINGPRAWN » 16 Aug 2017, 19:23

Would anybody happen to know the OE hose diameter of the hoses that connect to the manifold to cooler ( manifold end)... thanks

1 Replies

1593 Views

Last post by KINGPRAWN
25 Aug 2017, 11:03
The Toad's DG to AGG Gti Conversion

Last post by rett « 23 Aug 2017, 22:40
Replies: 88
by badgerfax » 14 Apr 2015, 21:21
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I don't know if anyone will be interested in this thread seeing as there is an identical conversion being done by Syncropatrick but did not want to...
88 Replies

56641 Views

Last post by rett
23 Aug 2017, 22:40
Temperature gauge red flashing light

Last post by slowcoach « 22 Aug 2017, 10:04
Replies: 4
by neilh » 15 Aug 2017, 13:07

Hi all

I have successfully installed a Subaru EJ20 into my van, and it runs brilliantly, making hills a doddle now!
I've been back on the road a...

4 Replies

2561 Views

Last post by slowcoach
22 Aug 2017, 10:04
AAZ CONVERSION SUMP BOLT TORQUE SETTING

Last post by PipH657HPE « 16 Aug 2017, 21:28

by PipH657HPE » 16 Aug 2017, 21:28

Hi, can anybody please tell me the torque setting of the sump bolts that fix the sump onto the block, standard aaz conversion from a jx, also torque...

0 Replies

2024 Views

Last post by PipH657HPE
16 Aug 2017, 21:28
Tdi cruise control

Last post by Blue str « 15 Aug 2017, 09:36

by Blue str » 15 Aug 2017, 09:36

Hi there.
I have a 1.9ahu fitted in my van.
When it was converted I had a cruise stalk fitted.
I have never really used it.
How exactly should it...

0 Replies

1747 Views

Last post by Blue str
15 Aug 2017, 09:36
Engine replacement dilemma

Last post by theladfromleigh « 13 Aug 2017, 17:57
Replies: 8
by MinionBob » 04 Feb 2016, 21:30

Dear all,

I'm a bit of a novice to the full workings of engines but am enjoying(!) finding out. Following coolant leak and general non-starting our...

8 Replies

5650 Views

Last post by theladfromleigh
13 Aug 2017, 17:57
AFN Pedal position sensor problem

Last post by spanishfly « 05 Aug 2017, 17:28
Replies: 9
by spanishfly » 04 Jun 2017, 15:27

Hi
I'm learning a bit more everyday thanks to this forum!
Today I'm trying to get my throttle to respond in first.
Van has an AFN from 1998 Passat...

9 Replies

4101 Views

Last post by spanishfly
05 Aug 2017, 17:28
EA827 or EA111 Golf Engine in T25?

Last post by R0B « 03 Aug 2017, 21:59
Replies: 1
by Timmo » 03 Aug 2017, 21:11

Hi (if you can help please)
I have a T25 JX 1.6 TD.
I am trying to plan an engine swap for it for the following reasons.
Less than 1549 cc = 150 Car...

1 Replies

2069 Views

Last post by R0B
03 Aug 2017, 21:59
VW Lupo Intermittent fault - 1.4 petrol BBY engine

Last post by scaltura « 03 Aug 2017, 19:29
Replies: 5
by JustSharon » 03 Aug 2017, 18:22

Not T25 but VW, Georgia's 1.4 Lupo (petrol) has an intermittent fault - rough idling, "pooh" to start, like missing especially when it's damp outside....

5 Replies

3947 Views

Last post by scaltura
03 Aug 2017, 19:29
Rad fan cooling

Last post by vwaddict « 03 Aug 2017, 19:04
Replies: 7
by vwaddict » 17 Jun 2017, 23:49

I have a water cooled t25 which was a jx but now has a AGG conversion fitted, my temperature gauge allways sits just over 3/4 even when the jx was...

7 Replies

3555 Views

Last post by vwaddict
03 Aug 2017, 19:04
Is this the answer to post 2040 lol ;-)

Last post by hightop ratty « 02 Aug 2017, 11:01

by hightop ratty » 02 Aug 2017, 11:01

Is this the answer to alternative engines post 2040 ?!?!?!

High Performance Plug-In Hybrid - GTE DSG

Volkswagen Golf GTE

1.4 TSi (204ps) GTE...

0 Replies

1750 Views

Last post by hightop ratty
02 Aug 2017, 11:01
Various Engine Sensor Woes

Last post by bmouthboyo « 02 Aug 2017, 08:17
Replies: 2
by bmouthboyo » 31 Jul 2017, 17:26

Background Info
My van was originally a DG but in the early 90's a previous owner was on of the first people to put a GTI in a T25. As such I have a...

2 Replies

2571 Views

Last post by bmouthboyo
02 Aug 2017, 08:17
Aircooled to 2.0agg

Last post by multisi « 30 Jul 2017, 13:51
Replies: 3
by bens_cab » 26 Jul 2017, 17:46

Right I've collected all the parts I need from two donor vehicles I want to retain my Aircooled gearbox which I think is a dk now I'm to use later...

3 Replies

1609 Views

Last post by multisi
30 Jul 2017, 13:51
saggy back end/rear spring query

Last post by RogerT « 30 Jul 2017, 11:06
Replies: 9
by green thing » 23 Jul 2017, 08:55

Since fitting a 1.9 tdi a few years ago the back end is a bit lower than it should be, especially when it`s loaded up. Mine is `80 so maybe the...

9 Replies

4373 Views

Last post by RogerT
30 Jul 2017, 11:06
Injection pump timing tool needed

Last post by Funbus « 17 Jul 2017, 14:52

by Funbus » 17 Jul 2017, 14:52

Hi all.
I'm after timing tools for Bosch fuel injection pump on aaz engine. A loan would be ideal, I'm located Middlesbrough (and will obviously...

0 Replies

1810 Views

Last post by Funbus
17 Jul 2017, 14:52
Oil grade for AFN Tdi

Last post by randolph57 « 15 Jul 2017, 08:49
Replies: 4
by peteandnero » 13 Jul 2017, 21:39

Hi, I wondered what the opinions of more expert members would be on the best oil grade for Tdi conversion with around 130bhp. This was a fully...

4 Replies

3270 Views

Last post by randolph57
15 Jul 2017, 08:49
Accelerator Cable needed for 1.8 Gti Conversion?

Last post by bmouthboyo « 14 Jul 2017, 11:58
Replies: 5
by bmouthboyo » 01 Feb 2017, 15:08

Hi Guys,

I need to replace the accelerator cable for my Gti conversion as the part under the pedal was damaged when welding. I am not sure if I buy...

5 Replies

3503 Views

Last post by bmouthboyo
14 Jul 2017, 11:58
To WBX or Not?

Last post by philyoung « 12 Jul 2017, 12:52
Replies: 17
by Mojoh » 11 Jun 2017, 22:06
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Greetings Engine Swappers. I am sorry, but I just can't resist...

Before you throw away that gorgeous WBX, have you considered the 'plug and play'...
17 Replies

8294 Views

Last post by philyoung
12 Jul 2017, 12:52
Ed code in a t25?

Last post by bigherb « 09 Jul 2017, 20:21
Replies: 3
by steve66 » 09 Jul 2017, 10:06

Hi all! I currently run a ct in my 1980 Devon, it's fine but very underpowered. I've seen an ed code engine 1.8 fuel injected 70bhp originally fitted...

3 Replies

1902 Views

Last post by bigherb
09 Jul 2017, 20:21
Replacement engine from 04 passet 1.9td redeye

Last post by syncroandy « 09 Jul 2017, 08:03
Replies: 1
by dickspanner » 08 Jul 2017, 15:01

Ok. Basic question. I have been offered a 1.9passat on 04 place. It is a 1.9 turbo diesel redeye .

Ignoring electrical issue at moment.

Does...

1 Replies

1759 Views

Last post by syncroandy
09 Jul 2017, 08:03
Split coolant hose

Last post by sandyman « 09 Jul 2017, 07:55
Replies: 2
by sandyman » 08 Jul 2017, 22:58

Hi all
Had the water pump changed and shortly after one of the hoses burst- trying to identify the part number/name of the one I need. I have an 1996...

2 Replies

1736 Views

Last post by sandyman
09 Jul 2017, 07:55
T25 Subaru turbo = project begins

Last post by Domino « 08 Jul 2017, 16:35
Replies: 80
by Domino » 14 Jul 2016, 06:42
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Well iv finally got around to starting the engine swap on my van ,, decided I wanted to go strait to a turbo engine as I know these engines like the...
80 Replies

39689 Views

Last post by Domino
08 Jul 2017, 16:35
Troubles in France, ej20!

Last post by slowcoach « 07 Jul 2017, 09:32
Replies: 25
by slowcoach » 08 Jun 2017, 18:42
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Hi all,
We're a bit stuck, although we've limped to a nice campsite fortunately. Takes on a different importance when travelling with a 4month old!...
25 Replies

11565 Views

Last post by slowcoach
07 Jul 2017, 09:32
Do I need to replace coolant?

Last post by mrnickmuss « 04 Jul 2017, 06:08

by mrnickmuss » 04 Jul 2017, 06:08

My head gaskett went recently on my AAZ and I have just got it all back up and running. As I was topping up the expansion chamber ready to bleed I...

0 Replies

1716 Views

Last post by mrnickmuss
04 Jul 2017, 06:08
N75

Last post by Wallace748 « 03 Jul 2017, 19:18

by Wallace748 » 03 Jul 2017, 19:18

Anyone got the correct hose locations on a 93 1z n75 valve had a browse had different suggestions! Cheers all

0 Replies

1871 Views

Last post by Wallace748
03 Jul 2017, 19:18
Suburu Engine Models

Last post by Oldiebut goodie « 03 Jul 2017, 15:23
Replies: 1
by MushroomGaz » 03 Jul 2017, 11:55

Can anyone explain the different Subaru Engine Models available to use as upgrades including bhp output, expected top speed when in a T25? Any...

1 Replies

1528 Views

Last post by Oldiebut goodie
03 Jul 2017, 15:23
Td fuel pump timing, turbo re indexing and other things

Last post by z3i « 02 Jul 2017, 10:21
Replies: 2
by z3i » 02 Jul 2017, 10:05

Hello guys I (unfortunately) have more questions about my TD engine :S I am sorry

I cant upload pictures as the resolution is too big even though I...

2 Replies

1859 Views

Last post by z3i
02 Jul 2017, 10:21
AAZ fuel pump timing

Last post by mrnickmuss « 01 Jul 2017, 20:23
Replies: 2
by mrnickmuss » 01 Jul 2017, 19:48

After killing my previous AAZ engine and replacing it with another which also had issues, I have now had the head skimmed and have replaced the...

2 Replies

2023 Views

Last post by mrnickmuss
01 Jul 2017, 20:23
A couple of scooby queries

Last post by Domino « 30 Jun 2017, 18:27
Replies: 1
by Hoopy_Frood » 30 Jun 2017, 12:05

My ej20 conversion is running nicely, but I've noticed over the last few days that when I set off from cold, the engine revs increase without...

1 Replies

1590 Views

Last post by Domino
30 Jun 2017, 18:27
Pistons.

Last post by kevtherev « 27 Jun 2017, 21:34
Replies: 1
by aerovolito » 26 Jun 2017, 17:56

I have to do some work on my AAZ. I know Mahle pistons are the standard but what others are quality for less money?

1 Replies

1778 Views

Last post by kevtherev
27 Jun 2017, 21:34
Tdi map sensor

Last post by silverbullet « 27 Jun 2017, 17:13
Replies: 1
by Wallace748 » 25 Jun 2017, 21:34

Anyone know if the map sensor in 1z ecru is still available anywhere? Cheers

1 Replies

1348 Views

Last post by silverbullet
27 Jun 2017, 17:13
New Engine Needed, time is ticking

Last post by pierce « 26 Jun 2017, 19:26
Replies: 5
by pierce » 22 Jun 2017, 14:30

My Jx engine needs replacing.

I would like a few opinions on the best course of action to take, given that I need it back on the road again before...

5 Replies

2005 Views

Last post by pierce
26 Jun 2017, 19:26
Tdi map sensor

Last post by Wallace748 « 25 Jun 2017, 21:34

by Wallace748 » 25 Jun 2017, 21:34

Anyone know if the map sensor in 1z ecru is still available anywhere? Cheers

0 Replies

1561 Views

Last post by Wallace748
25 Jun 2017, 21:34
Oil Drip

Last post by Mark S « 25 Jun 2017, 17:48

by Mark S » 25 Jun 2017, 17:48

AAZ (1.9 TD) using JX manifolds and K14 turbo.

Bus went in to garage for some work recently. Got a phone call about a 'major problem' they had found...

0 Replies

1892 Views

Last post by Mark S
25 Jun 2017, 17:48
aaz with clutch alternator / JX v belt pulley

Last post by wolfbus.uk « 19 Jun 2017, 20:35

by wolfbus.uk » 19 Jun 2017, 20:35

After many months of searching i've fortunately found a 58.000 mile Golf with AAZ engine full vw history since new bought from an old boy in the next...

0 Replies

1977 Views

Last post by wolfbus.uk
19 Jun 2017, 20:35
1.6 JX TD Engine not revving

Last post by clift_d « 12 Jan 2018, 20:58
Replies: 9
by dickspanner » 21 May 2017, 08:23

OK, Hopefully last question.

The JX is not in and fires on the key. All is good.

Well not really.

If fires on key but will just high tick over...

9 Replies

4836 Views

Last post by clift_d
12 Jan 2018, 20:58
1.6 td oil level

Last post by quattrodave « 14 Jun 2017, 06:11
Replies: 4
by quattrodave » 11 Jun 2017, 19:17

I've had to renew the Turbo to sump oil return pipe today so had to drain the oil 1st. After having dipstick and oil level problems previously I...

4 Replies

2361 Views

Last post by quattrodave
14 Jun 2017, 06:11
1.8 engine

Last post by westie 37 « 13 Jun 2017, 08:21
Replies: 5
by westie 37 » 12 Jun 2017, 10:48

hi guys i have just replaced my 1.6 ct engine with a 1.8 air cooled and fitted h40 carbs on it i have checked the timeing and all electric replaced...

5 Replies

2198 Views

Last post by westie 37
13 Jun 2017, 08:21
Advice please - electrical issues

Last post by Twodogs « 12 Jun 2017, 20:55
Replies: 3
by Twodogs » 04 Jun 2017, 18:10

Hi

I have a T25 Westy hitop fitted with a 1.9 tdi AFN - a Tim Shettle conversion in 2012.

I am having problems starting the van and when I connect...

3 Replies

1598 Views

Last post by Twodogs
12 Jun 2017, 20:55
Changing V5 after engine conversion?

Last post by DoubleOSeven « 12 Jun 2017, 14:34
Replies: 1
by bmouthboyo » 12 Jun 2017, 14:18

Hi guys,

As the title really.

When I bought my Autosleeper Trident 1983 8 years ago the V5 showed the original DG engine number and that it was...

1 Replies

1002 Views

Last post by DoubleOSeven
12 Jun 2017, 14:34
1z tdi - power loss - fast idle - limp home?

Last post by syncroandy « 12 Jun 2017, 08:54
Replies: 7
by trentjim » 05 Aug 2015, 16:44

WHY DO THEY FAIL AT THE START OF YOUR HOLIBOBS??!??.
20 Mins from home and the van died. Flashing glowplug light and total loss of power. Van limped...

7 Replies

4792 Views

Last post by syncroandy
12 Jun 2017, 08:54
Bit of a dilemma - any thoughts?

Last post by zzippyman « 10 Jun 2017, 19:48
Replies: 9
by zzippyman » 09 Jun 2017, 20:36

I bought a high mileage (c190k miles), 53-reg VW Golf Mk4 1.9Tdi (130) Estate in January 2015 as a cheap load carrier, only intending to use it for...

9 Replies

4022 Views

Last post by zzippyman
10 Jun 2017, 19:48
AAZ Cold start system.

Last post by Oldiebut goodie « 09 Jun 2017, 17:53
Replies: 3
by T25Kernow » 09 Jun 2017, 07:35

Hi I've just picked up a Golf MK3 with an AAZ engine in it. My plan is to run the car around my yard (no mot) get it starting and running right...

3 Replies

1689 Views

Last post by Oldiebut goodie
09 Jun 2017, 17:53
Clutch rattle

Last post by boatbuilder « 06 Jun 2017, 20:42
Replies: 3
by vansolo » 05 Jun 2017, 10:32

Just got my JX replaced with a 1Y using all the JX bits including fuel pump and injectors, inlet, turbo, etc. New clutch installed and after about 50...

3 Replies

1958 Views

Last post by boatbuilder
06 Jun 2017, 20:42
Deleting the oil filler neck from diesel engine sump on AGG

Last post by badgerfax « 06 Jun 2017, 11:59
Replies: 2
by badgerfax » 06 Jun 2017, 07:03

I want to get rid of the oil filler tube from the sump as it sits very close to the alternator belt.

As my engine is due an oil change i'd like to...

2 Replies

1686 Views

Last post by badgerfax
06 Jun 2017, 11:59
Glow plug light duration

Last post by ZsZ « 29 May 2017, 06:26
Replies: 1
by jaber » 28 May 2017, 19:21

Hi my glow plug light stays on a fair while at least 45 secs is this normal it starts no probs it's a 1.9sdi unit from a golf I am getting about 10.9...

1 Replies

1551 Views

Last post by ZsZ
29 May 2017, 06:26
1.7 Diesel Engine

Last post by The Hairy Camper « 22 May 2017, 21:20
Replies: 29
by The Hairy Camper » 04 May 2017, 21:54
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Hi everyone, I'm new to the forum so i hope this is in the correct place?

I recently bought an 84 Autosleeper, with a 1.7 Diesel Engine. Brilliant...
29 Replies

11984 Views

Last post by The Hairy Camper
22 May 2017, 21:20
1.9 1y Diesel engine isssue

Last post by Paul1981 « 22 May 2017, 19:24
Replies: 2
by Paul1981 » 22 May 2017, 17:57

Hi,
I'm paul I'm new to the club 80-90 site and is a pleasure to be part of. I'm after some advice as my beloved T25 decided to break down yesterday...

2 Replies

1866 Views

Last post by Paul1981
22 May 2017, 19:24

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