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
Coolant issues	silverbullet	05 May 2026, 17:27	Once this week	T25 Alternative Engine Forum

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Last post

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

1727 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

1910 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

1482 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

2172 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

1671 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

1989 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

2084 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

5124 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

2516 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

2383 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

1735 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

1111 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

5170 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

4297 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

1835 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

2123 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

1802 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

1659 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
1

2
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

12782 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

2010 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

1964 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

1682 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

1770 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

5448 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

25479 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

2488 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

11098 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

2457 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

2497 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

2869 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

1773 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

3355 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

3457 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

1824 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

3450 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

2136 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
1

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

8919 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

2171 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
1

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

11962 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

1573 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
1

2
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

9981 Views

Last post by philyoung
31 Mar 2017, 18:36
Best alternative to a 1.6 TD for towing and hills

Last post by sparkiekitty « 30 Mar 2017, 13:11
Replies: 2
by sparkiekitty » 29 Mar 2017, 14:15

Hi,

The 1.6 TD engine in my Holdsworth conversion 1990 T25 is on it's last legs and I thought I'd take the chance to upgrade. I'll be taking it to a...

2 Replies

2323 Views

Last post by sparkiekitty
30 Mar 2017, 13:11
AAZ engine parts availability

Last post by phil_b « 22 Mar 2017, 17:13
Replies: 10
by windy » 20 Mar 2017, 20:13

Just bought an AAZ engine to replace the ageing, oil burning JX lump in my van & wondered wheres the best place to get parts for these?

I got ripped...

10 Replies

5142 Views

Last post by phil_b
22 Mar 2017, 17:13
subaru power steering

Last post by Domino « 16 Mar 2017, 06:09
Replies: 3
by slowcoach » 13 Mar 2017, 13:05

just idling and wondering how to make my time even more scarce..

has anyone added power sterring to their 2wd non-power steering van, with subaru...

3 Replies

1968 Views

Last post by Domino
16 Mar 2017, 06:09
AAZ Thermostat issue?

Last post by mrnickmuss « 15 Mar 2017, 09:24
Replies: 22
by mrnickmuss » 15 Jan 2017, 20:22
1

2
My Doka seems to be battling me! A long post but please read if you know anything about cooling systems and please then tell me what I am missing!
I...
22 Replies

9418 Views

Last post by mrnickmuss
15 Mar 2017, 09:24
diesel injector pump

Last post by colinthefox « 12 Mar 2017, 12:45
Replies: 1
by Dave Rog » 11 Mar 2017, 20:36

Guys, Gals

Replaced engine with a AEF 1.9 SDI 8V from VW Polo about 300 miles ago.
Suffered huge loss of power - loads of smoke on motorway run -...

1 Replies

2126 Views

Last post by colinthefox
12 Mar 2017, 12:45
late n/a diesel bay loom

Last post by rowlesy « 11 Mar 2017, 20:26
Replies: 2
by rowlesy » 10 Mar 2017, 21:04

just fitted an AEF motor in my lith bus and have found a broken wire i might need to splice into the caddy loom? (im running caddy loom with immob...

2 Replies

2277 Views

Last post by rowlesy
11 Mar 2017, 20:26
CU Aircooled crown and pinion in diesel gearbox

Last post by multisi « 09 Mar 2017, 11:42
Replies: 8
by z3i » 02 Mar 2017, 16:16

Hello guys, haven't posted for a while, doing a td conversion on my t25. I've sourced a 4 speed gearbox and Bellhousing from a 1.6d, it's quite a...

8 Replies

3617 Views

Last post by multisi
09 Mar 2017, 11:42
Help with stalling issue on Subaru conversion!

Last post by Domino « 04 Mar 2017, 16:48
Replies: 15
by mariner » 02 Mar 2017, 19:08
1

2
Hi all, any help on this would be great - pulling my hair out with it right now! :?

I bought my van (an EJ22 conversion) last May/June. About 3/4...
15 Replies

6044 Views

Last post by Domino
04 Mar 2017, 16:48
Passat b3 1v 1.6 td engine? Wrong engine?

Last post by z3i « 04 Mar 2017, 13:43

by z3i » 04 Mar 2017, 13:43

I've just picked up a passat b3 1.6td I thought it was an sb engine but it's actually a 1v engine? I can't find a great deal of information....

0 Replies

1605 Views

Last post by z3i
04 Mar 2017, 13:43

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