T25 Alternative Engine Forum

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Most liked posts	Author	Posted	Liked	Forum
AGG seized - Oil starvation on steep inclines?	cobblers	18 Jun 2025, 14:22	Once this week	T25 Alternative Engine Forum

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Last post

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

1608 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

1549 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

36386 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
1

2
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

10361 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

1615 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

1739 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

1351 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

1640 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

1810 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

1397 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

1566 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

1200 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

1755 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

1417 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

1789 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

1832 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

4249 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

2100 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

1899 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

1422 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

856 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

4080 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

3422 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

1448 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

1743 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

1499 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

1367 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

10070 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

1659 Views

Last post by Paul1981
22 May 2017, 19:24
AAZ Crank Issue: AAZ or AHU?

Last post by sirivor70 « 21 May 2017, 06:55

by sirivor70 » 21 May 2017, 06:55

Hey all.

So looks like my AAZ crank needs replacing. Question is, when replacing it, I have a choice of another AAZ crank or an AHU.

Would prefer...

0 Replies

1745 Views

Last post by sirivor70
21 May 2017, 06:55
AAZ Pumps - have they *ALL* got straight boost pins?

Last post by mrhutch « 18 May 2017, 20:53
Replies: 1
by Mark S » 18 May 2017, 14:34

I know there are at least 14 injection pumps for the AAZ engine. Word is that they have (mostly?) got straight boost pins such that there is...

1 Replies

1367 Views

Last post by mrhutch
18 May 2017, 20:53
LOSE OF POWER SUBARU EJ20

Last post by slowcoach « 18 May 2017, 17:00
Replies: 2
by cwe » 17 May 2017, 15:40

can anyone help me out, when driving for about an hour or so on the motorway i suddenly lose power slows down then when i change down a gear she...

2 Replies

1442 Views

Last post by slowcoach
18 May 2017, 17:00
AAZ Cold Start Solenoid?

Last post by Mark S « 17 May 2017, 17:46
Replies: 10
by Mark S » 11 Jun 2016, 18:40

I've got an AAZ that replaced on old CS with a manual cold-start lever operated from the dash. This has lain disconnected because there is no...

10 Replies

4420 Views

Last post by Mark S
17 May 2017, 17:46
Golf GTi Conversion - Diesel Parts or Engine Adapter?

Last post by MrCrowley « 17 May 2017, 17:08
Replies: 33
by jonnydub » 20 Jun 2013, 16:20
1

2

3
After deciding to convert my T25 engine to a Golf GTi PB from a 1990 MK2 Golf, I'm now looking at buying all the parts to start it. I already have...
33 Replies

22288 Views

Last post by MrCrowley
17 May 2017, 17:08
Fitting JX Electric Water Pump

Last post by Mark S « 17 May 2017, 16:42
Replies: 2
by Mark S » 02 Apr 2016, 08:45

Hi there, in 2003 I fitted an AAZ engine in place of a 1.6 NA diesel lump (CS). All worked brilliantly for 13 years up until a few days ago when...

2 Replies

2168 Views

Last post by Mark S
17 May 2017, 16:42
To Subaru or not to Subaru ? ?

Last post by Goldfeesh « 11 May 2017, 13:29
Replies: 16
by doenut82 » 08 May 2017, 08:40
1

2
Just wondering what the repercussions of doing a Subaru conversion would be in the VW World, is it looked down upon or is it all ok. I'm currently...
16 Replies

8858 Views

Last post by Goldfeesh
11 May 2017, 13:29
Went to my local college on Monday...

Last post by nobbyfox « 11 May 2017, 07:43
Replies: 3
by silverbullet » 28 Apr 2017, 16:03

...for a look around their engine dyno and rolling road

Sent from my S60 using Tapatalk

3 Replies

1980 Views

Last post by nobbyfox
11 May 2017, 07:43
Accerator cable question

Last post by dickspanner « 10 May 2017, 11:03
Replies: 6
by dickspanner » 07 May 2017, 23:37

Might seam like a numpty question but fitting the Jx 1.6Td engine in the crewcab revealed that I need a new Accelerator cable.

Looking at them on...

6 Replies

2108 Views

Last post by dickspanner
10 May 2017, 11:03
aaz what sump gasket

Last post by Oldiebut goodie « 04 May 2017, 18:05
Replies: 5
by stevealex » 02 May 2017, 20:08

Hi All

Could anyone tell me the best sump gasket when fitting a JX sump to an AAZ, hopefully replacing my dead 1y at the weekend with an AAZ so any...

5 Replies

2203 Views

Last post by Oldiebut goodie
04 May 2017, 18:05
AAZ Smoking when Cold

Last post by multisi « 02 May 2017, 08:51
Replies: 1
by Mark S » 02 May 2017, 08:28

Hi there, I have been running an AAZ (1.9 TD) since 2003. Previously, it used to smoke briefly on initial start-up but then run clean. However, last...

1 Replies

1538 Views

Last post by multisi
02 May 2017, 08:51
1Y engine in, now need suitable GEARBOX.. Advise please?

Last post by Aidan « 29 Apr 2017, 06:17
Replies: 3
by MattGough » 08 Apr 2017, 17:26

I have a 1986 T25 which did have the 1.6 TD (JX). The headgasket was gone and other issues with the engine, so I have sourced and put in a nice 1.9D...

3 Replies

2914 Views

Last post by Aidan
29 Apr 2017, 06:17
Subaru EJ25 Coolant Layout

Last post by Dollytony « 29 Apr 2017, 05:40
Replies: 5
by Mr Ron » 26 Apr 2017, 21:05

Hello there.
Long time reader, first time poster here. Please forgive me for non-posting and please be gentle :)
My name is Kieron and my wife and I...

5 Replies

2572 Views

Last post by Dollytony
29 Apr 2017, 05:40
Passat engine

Last post by Aidan « 23 Apr 2017, 07:18
Replies: 1
by eddioke » 22 Apr 2017, 18:31

I have seen an advert for a T25 with a 1.9 Passat TDI engine I have a 1.7 diesel t3 l also have a 2004 pzsat with a 1.9 TDI can it be transplanted?...

1 Replies

1569 Views

Last post by Aidan
23 Apr 2017, 07:18
New Clutch for JX

Last post by garyd « 20 Apr 2017, 13:33
Replies: 4
by Wedgbury » 30 Oct 2016, 09:04

Bit off advice if possible

Need a new clutch soon and will be fitting a JK/SB engine with chargecooler over the coming months so wondered if anybody...

4 Replies

2985 Views

Last post by garyd
20 Apr 2017, 13:33
Starter Motor problem

Last post by randolph57 « 20 Apr 2017, 03:01
Replies: 4
by markysparky71 » 19 Apr 2017, 10:46

Hey All any advice welcome
81 westfalia 19AAZ engine replaced starter motor around 6 year ago. Lately had intermittent fault, usually at the worst...

4 Replies

1720 Views

Last post by randolph57
20 Apr 2017, 03:01
Van will Jump but not start after running

Last post by T25Bluealloy « 18 Apr 2017, 14:16
Replies: 24
by T25Bluealloy » 10 Apr 2017, 11:42
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2
Im guessing this is electrical but it could be mechanical so sorry if posting in the wrong section..

basically the alternator is showing a charge of...
24 Replies

7241 Views

Last post by T25Bluealloy
18 Apr 2017, 14:16
AAZ Engine number 2 head gaskett.

Last post by ajsimmo « 16 Apr 2017, 23:27
Replies: 2
by mrnickmuss » 14 Apr 2017, 19:50

I thought my learning curve was going to level out for a bit..... No such luck!
So I have found the time to get the spanners out and tackle the head...

2 Replies

1884 Views

Last post by ajsimmo
16 Apr 2017, 23:27
Best recon engine supplier?

Last post by djswain1 « 05 Apr 2017, 20:07
Replies: 26
by Bucky P » 23 Jan 2017, 16:35
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2
I've got a 1.6TD JX engine that I want to replace with a 1.9TD or similar. Where is the best place to get a recon engine from?
26 Replies

9977 Views

Last post by djswain1
05 Apr 2017, 20:07
Swapping fuel tank

Last post by Aidan « 04 Apr 2017, 20:32
Replies: 1
by mshaw1980 » 04 Apr 2017, 12:34

Hello

I have a subaru engine in my T25 and a carburettor fuel tank, hence why my fuel pump is noisy trying to suck fuel through the tiny outlet....

1 Replies

1326 Views

Last post by Aidan
04 Apr 2017, 20:32
Engine build

Last post by philyoung « 31 Mar 2017, 18:36
Replies: 23
by philyoung » 30 Sep 2016, 16:15
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Some pictures of the state of my stripped 2.1MV soon to be a 2.5; just in time..
20160926_152728.jpg 20160926_152310.jpg 20160922_174744.jpg
23 Replies

8925 Views

Last post by philyoung
31 Mar 2017, 18:36

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