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

Diagnostics

Last post by peteabbott « 19 Aug 2015, 21:07
Replies: 3
by peteabbott » 18 Aug 2015, 21:28

Hi, I have also posted this in the tech section as I am quite desperate for help. Can anyone recommend a DIY vagcom diagnostic unit that would cover...

3 Replies

2041 Views

Last post by peteabbott
19 Aug 2015, 21:07
AAZ with 'V' pulleys

Last post by Andyvandy « 19 Aug 2015, 19:37
Replies: 2
by Andyvandy » 19 Aug 2015, 17:51

just wondered how common the AAZ engine is with 'V' pulley on engine and ancillary equipment.
Searches on the WEB and info from the local VW dealer...

2 Replies

1577 Views

Last post by Andyvandy
19 Aug 2015, 19:37
AGG/ADY rebuild

Last post by Titus A Duxass « 19 Aug 2015, 13:09
Replies: 3
by Titus A Duxass » 17 Aug 2015, 05:45

I have to rebuild an ADY motor from a box of bits.
Can any one recommend a good reasonably priced manual that I can use?

And are there any major...

3 Replies

1960 Views

Last post by Titus A Duxass
19 Aug 2015, 13:09
i want it auto

Last post by bluebus1987 « 17 Aug 2015, 08:50
Replies: 2
by fonz of bcdc » 14 Aug 2015, 21:58

Hi im doing my home work before i jump in feet first . i have a big coach built t25 . at the moment is a 2 ltr air cooled auto . when i got it the...

2 Replies

1250 Views

Last post by bluebus1987
17 Aug 2015, 08:50
Changing V5 after Tdi conversion: where's my engine number?

Last post by Winchweight « 16 Aug 2015, 13:43
Replies: 2
by Winchweight » 16 Aug 2015, 12:09

Hi chaps. I'm changing the V5 and want to put the engine number in. The engine is an AFN from a Sharan.

2 Replies

1387 Views

Last post by Winchweight
16 Aug 2015, 13:43
1.9 sdi engine power loss

Last post by seanw1990 « 16 Aug 2015, 12:23

by seanw1990 » 16 Aug 2015, 12:23

hey guys, ive got a 1.9 sdi aef engine in my t25.
i recently had a sudden loss of power after being able to easily do 70mph on the motor way.
Ive...

0 Replies

2002 Views

Last post by seanw1990
16 Aug 2015, 12:23
Quietening my 1.9diesel

Last post by stevie43_uk « 14 Aug 2015, 22:47
Replies: 8
by stevie43_uk » 10 Aug 2015, 08:33

Hi All,

Finally got my engine conversion done and on the road ....
I'm well pleased with my efforts but the engine sounds like a dumper truck !!...

8 Replies

3780 Views

Last post by stevie43_uk
14 Aug 2015, 22:47
Tdi power drop off ???

Last post by KINGPRAWN « 12 Aug 2015, 07:08
Replies: 2
by KINGPRAWN » 11 Aug 2015, 14:25

i have a 1z tdi conversion in my syncro .... Runs fantastically.. Except I have started to notice that on a long run when you start get very...

2 Replies

1216 Views

Last post by KINGPRAWN
12 Aug 2015, 07:08
t25 DOKA 1.9tdi passat conversion...loosing power? HELP!

Last post by Jimbos grunts « 11 Aug 2015, 04:35
Replies: 9
by Jimbos grunts » 06 Apr 2015, 14:45

Owned it for a few months now, no problems apart from the throttle cable kept getting wet. Driving it home just now and it started to die on me...not...

9 Replies

4032 Views

Last post by Jimbos grunts
11 Aug 2015, 04:35
VW Bora (golf with a boot)

Last post by peteabbott « 10 Aug 2015, 18:55
Replies: 2
by peteabbott » 06 Aug 2015, 22:15

Bit of help is needed please. My dear old Bora is not very well. When I turn on the ignition the cooling fan comes on for about 5 secs then off, then...

2 Replies

1741 Views

Last post by peteabbott
10 Aug 2015, 18:55
Starter not engaging in the flywheel after engine transplant

Last post by ghost123uk « 06 Aug 2015, 09:04
Replies: 4
by Holliesdad » 03 Aug 2015, 20:53

Hi, I have a very perplexing problem with my Autohomes Kamper. I have gone through two engine transplants from Cs to jx to 1y. Each swap involved...

4 Replies

1706 Views

Last post by ghost123uk
06 Aug 2015, 09:04
1.9 TDI AHU Top Dead Centre Advice

Last post by Bigjcc55 « 03 Aug 2015, 19:43
Replies: 9
by VirginAtlantic » 30 Jul 2015, 06:20

Hi I have an AHU 1.9 TDI engine and I'm looking to see if anyone has knowledge of the crankcase position for TDC on the pulley side?

I don't have...

9 Replies

8022 Views

Last post by Bigjcc55
03 Aug 2015, 19:43
1.9 diesel VAG engine conversion

Last post by Oldiebut goodie « 31 Jul 2015, 19:40
Replies: 3
by islandboy » 31 Jul 2015, 18:29

I'm going along, tomorrow, to look at a 1980 T25 Holdsworth Villa Conversion.

The advertiser states it has had 1.9 diesel VAG engine conversion....

3 Replies

1591 Views

Last post by Oldiebut goodie
31 Jul 2015, 19:40
Subaru conversion fuel pump voltage issue

Last post by Big Bear « 29 Jul 2015, 17:08
Replies: 7
by Big Bear » 25 Jul 2015, 13:22

Hi all,

Hopefully somebody mind help. My Scooby conversion is very slowly getting there after many months and much head scratching. Sadly I get a...

7 Replies

2932 Views

Last post by Big Bear
29 Jul 2015, 17:08
Any suggestions for T25 specialist in Oxfordshire?

Last post by EdFOTB « 28 Jul 2015, 08:59
Replies: 2
by EdFOTB » 27 Jul 2015, 15:00

Hi everyone,

Does anyone have a suggestion for a really good garage in Oxfordshire who is a T25 expert?

I have been using a reliable source but I...

2 Replies

1315 Views

Last post by EdFOTB
28 Jul 2015, 08:59
cold start mechanism on a sb injection pump

Last post by dave friday « 27 Jul 2015, 18:09
Replies: 2
by dave friday » 27 Jul 2015, 14:04

Afternoon all,does anyone know why the cold start mech has two positions
Im looking for reasons why the sb engine is hard to start and then only...

2 Replies

1074 Views

Last post by dave friday
27 Jul 2015, 18:09
Very noisy sb engine

Last post by dave friday « 23 Jul 2015, 20:27
Replies: 1
by dave friday » 22 Jul 2015, 05:10

Morning all,yes my newly fitted sb engine is very noisy on start up,any ideas?
Ta.

1 Replies

859 Views

Last post by dave friday
23 Jul 2015, 20:27
Best clutch for 2.1 / 1.8T

Last post by Oldiebut goodie « 22 Jul 2015, 16:33
Replies: 5
by youde4 » 15 Jul 2015, 12:11

Hi all

I'm just wondering if anyone has any tips on what's the best clutch available for a 2.1 Syncro. I'm putting a 1.8T in there using a diesel...

5 Replies

3083 Views

Last post by Oldiebut goodie
22 Jul 2015, 16:33
Overheating - radiator problem ? (PB Engine in T3)

Last post by lloydy « 21 Jul 2015, 20:48
Replies: 16
by Stefvan » 20 Jul 2015, 20:41
1

2
Hi
my new van seems to be running hot, at top speed the needle stays a needles width above the red light. I haven't flushed anything yet but the...
16 Replies

7534 Views

Last post by lloydy
21 Jul 2015, 20:48
T3 Golf GTI, Digifant conversion.. Oil Pressure problem

Last post by Stefvan « 20 Jul 2015, 20:03

by Stefvan » 20 Jul 2015, 20:03

Hoping someone has been down this road.. got a 1.8 GTI PB code Digifant engine from a Golf Mark 2 in my new bus. It has apparently been running fine...

0 Replies

1895 Views

Last post by Stefvan
20 Jul 2015, 20:03
Engine lid / cover material

Last post by csmacg « 19 Jul 2015, 19:42
Replies: 2
by csmacg » 19 Jul 2015, 08:04

Hi, The underside of my engine cover / lid is torn (looks like a clear plastic covering matted hair?). Can anyone suggest a good (presumably...

2 Replies

1249 Views

Last post by csmacg
19 Jul 2015, 19:42
v8 and adaptor plate

Last post by jaber « 14 Jul 2015, 19:50

by jaber » 14 Jul 2015, 19:50

|Heads up there is a rover v8 and adaptor plate for a beetle gear box £75 search vw beetle page 3 on gumtree, might be of use to someone :D

Steve

0 Replies

1610 Views

Last post by jaber
14 Jul 2015, 19:50
Afn wiring diagram help please

Last post by syncroandy « 14 Jul 2015, 19:36
Replies: 1
by Oscarboo » 14 Jul 2015, 07:14

Hi all,

I'm sorry to ask the already many asked question but I just can't seem to find the correct pin out wiring diagram for the loom I have so...

1 Replies

1753 Views

Last post by syncroandy
14 Jul 2015, 19:36
Diesel wont start when hot

Last post by Oldiebut goodie « 14 Jul 2015, 16:56
Replies: 1
by mig » 14 Jul 2015, 15:57

Finally got our leisurely paced petrol to SB (1.6 TD)conversion finished and out for a long-ish run at the weekend.
Seemed to run hot-temp gauge just...

1 Replies

1363 Views

Last post by Oldiebut goodie
14 Jul 2015, 16:56
2.0 ABF engine swap

Last post by Pascoe92 « 12 Jul 2015, 20:10

by Pascoe92 » 12 Jul 2015, 20:10

Right my van used to have a 1.6d engine previous owner changed it to a 1.9d engine, engine is now goosed and I happen to have a 2.0 16v ABF engine...

0 Replies

1553 Views

Last post by Pascoe92
12 Jul 2015, 20:10
AAZ oil change with cooler

Last post by PhilXXJ « 12 Jul 2015, 11:08
Replies: 2
by PhilXXJ » 11 Jul 2015, 17:11

Just done an oil change on my aaz which has a front mounted oil cooler. I put the front end on ramps but ive never been sure how much drains from the...

2 Replies

1123 Views

Last post by PhilXXJ
12 Jul 2015, 11:08
Finding TDC on 1 y

Last post by boatbuilder « 12 Jul 2015, 09:07
Replies: 4
by stevie43_uk » 10 Jul 2015, 06:45

Hi all,

Just doing my static timing on my 1 y engine before I drop it back in the van.

I can't check the TDC on the flywheel just yet as the engine...

4 Replies

1944 Views

Last post by boatbuilder
12 Jul 2015, 09:07
Intermittent Starting Problem AAZ

Last post by PhilXXJ « 11 Jul 2015, 16:26
Replies: 8
by tattoojohnny » 10 Jul 2015, 09:16

Didn't know if this would come under mechanical or electrical so admin please move if required.
Had this problem a while and slowing going through...

8 Replies

4058 Views

Last post by PhilXXJ
11 Jul 2015, 16:26
Gearbox casting corrosion!

Last post by pionte « 10 Jul 2015, 21:50
Replies: 6
by Andyvandy » 10 Jul 2015, 19:17

Having just removed the engine (AAZ) and gearbox from my 1990 Westy I thought I would give the gearbox a clean up as it was very mucky.
I decided to...

6 Replies

3386 Views

Last post by pionte
10 Jul 2015, 21:50
New engine Flat battery

Last post by ghost123uk « 08 Jul 2015, 17:48
Replies: 8
by RevdRay » 03 Jul 2015, 17:38

I have recently had a S/H Golf AAZ fitted to our 1984 Wesfalia Club Joker but the battery has now become unreliable going flat if not started for a...

8 Replies

2076 Views

Last post by ghost123uk
08 Jul 2015, 17:48
Turbo Failure and VNT Actuator Repair

Last post by syncroandy « 08 Jul 2015, 16:06
Replies: 8
by davegsm82 » 28 Jun 2015, 23:12

Not on a T25, but still on a VW. My 290,000 miles old MK4 Golf TDi ate its turbo last thursday, it had been making an odd buzzing noise for a few...

8 Replies

5617 Views

Last post by syncroandy
08 Jul 2015, 16:06
Starter motor advice needed

Last post by slowcoach « 08 Jul 2015, 15:32
Replies: 2
by tattoojohnny » 07 Jul 2015, 11:52

Please bear with me if I don't use the correct terminology.

1983 AAZ conversion. 5 speed dogleg.

I went to start my van yesterday and all I got was...

2 Replies

1745 Views

Last post by slowcoach
08 Jul 2015, 15:32
1z idle

Last post by ZsZ « 08 Jul 2015, 09:11
Replies: 1
by Wallace748 » 08 Jul 2015, 09:03

Anything common on 1z for lumpy idle? No smoke or anything just sometimes lumpy on idle. No codes. ? Just wandered if anyone else had before? Was...

1 Replies

1093 Views

Last post by ZsZ
08 Jul 2015, 09:11
Looking for a good Subaru Engine Installer

Last post by ricp « 07 Jul 2015, 16:28
Replies: 5
by Brighton Dubber » 02 Jul 2015, 12:54

Hi I am looking at putting a Subaru in my T25 Holdsworth. My camper has been badly converted from petrol to diesel and has given me nothing but...

5 Replies

2640 Views

Last post by ricp
07 Jul 2015, 16:28
AAZ Turbo Removal

Last post by HarryMann « 07 Jul 2015, 00:38
Replies: 2
by Andyvandy » 03 Jul 2015, 13:51

Hi,

In advanced state of despair after having to replace the exhaust pipe on the van and finding the securing nuts and studs on the turbo totally...

2 Replies

1570 Views

Last post by HarryMann
07 Jul 2015, 00:38
1y injector pump leaking at cold start

Last post by saudijoker « 06 Jul 2015, 20:02
Replies: 6
by saudijoker » 06 Jul 2015, 13:49

Hello. I thought I had an oil leak after I noticed oily marks on the road when I park and drops on the back door. On closer inspection it seems the...

6 Replies

3177 Views

Last post by saudijoker
06 Jul 2015, 20:02
Cam belt tensioner

Last post by boatbuilder « 05 Jul 2015, 20:14
Replies: 5
by Jonnyb416 » 04 Jul 2015, 19:57

Hi all, I want to buy a new cam belt before I have the 1Y fitted to my van. I was wondering is it best to get the belt and tensioner? Or would just...

5 Replies

2373 Views

Last post by boatbuilder
05 Jul 2015, 20:14
Coolant levels after 1.9 1y conversion

Last post by tonyandhelen « 04 Jul 2015, 21:11
Replies: 2
by tonyandhelen » 04 Jul 2015, 20:42

Hi, I've had the original 1.6d engine replaced to a 1.9 1y the header tank is full to the brim, however very little water in the expansion tank....

2 Replies

1554 Views

Last post by tonyandhelen
04 Jul 2015, 21:11
Engine upgrade maybe !

Last post by anaconda « 03 Jul 2015, 22:54
Replies: 4
by ssdt » 02 Jul 2015, 16:54

Have a doka with CSS diesel and 4speed box according to log book and gear stick should be Jx and 5 speed 5 on knob taped over have a chance of 1y...

4 Replies

2451 Views

Last post by anaconda
03 Jul 2015, 22:54
subaru tears fears and gears

Last post by jaber « 02 Jul 2015, 20:40

by jaber » 02 Jul 2015, 20:40

Well its been a long journey from 1900 wbx to present day Subaru, (2.0.ej) in me 84 lhd caravelle gl
Should I do it? Yes :D
Will it rev its things...

0 Replies

1777 Views

Last post by jaber
02 Jul 2015, 20:40
Looking for 45 degree oil filler neck adapter

Last post by Daztwigg « 02 Jul 2015, 20:13
Replies: 15
by Winchweight » 28 May 2015, 09:19
1

2
Anyone know where I can get one? I have seen what appears to be a stock item that just fits to the oil filler hole, then the cap fits to it.

To fit...
15 Replies

6273 Views

Last post by Daztwigg
02 Jul 2015, 20:13
Tdi cone filters?

Last post by VWMartin « 02 Jul 2015, 12:49
Replies: 11
by VWMartin » 30 Jun 2015, 20:49

Hi guys

I'm running a 1z conversion in my T25 and I'm lacking space in my engine bay due to air box being on the wrong side of the bay.

Just...

11 Replies

5340 Views

Last post by VWMartin
02 Jul 2015, 12:49
Not so dirty diesel pv

Last post by gary1998 « 01 Jul 2015, 23:47
Replies: 21
by Daztwigg » 29 Jun 2015, 23:00
1

2
Just thought I would share some photos off what I been doin to my Pv every Sunday for last 3 yrs engine started life as afn.
21 Replies

6389 Views

Last post by gary1998
01 Jul 2015, 23:47
subaru conversion fuel pump????

Last post by Dougal devon « 01 Jul 2015, 18:59
Replies: 11
by zippster » 25 Jul 2012, 12:04

what fuel pumps are you guys using? i have an early tank only put on last year, what pumps you useing also you have pic how mounted it cheers

11 Replies

6831 Views

Last post by Dougal devon
01 Jul 2015, 18:59
Simple 1y engine swap

Last post by Oldiebut goodie « 01 Jul 2015, 15:41
Replies: 5
by stevegandy » 26 Jun 2015, 12:48

Hi All im new here - ive just bought my first van, and within 3 hours of ownership managed to kill the engine (I didnt realise the dipstick wasnt...

5 Replies

3296 Views

Last post by Oldiebut goodie
01 Jul 2015, 15:41
tdi clutch bolts?

Last post by ratinyho « 30 Jun 2015, 11:19
Replies: 2
by ratinyho » 29 Jun 2015, 19:39

I'm swapping my clutch and flywheel this week.

Can anyone confirm if the clutch bolts from the Jx Set up are the same as the Tdi bolts?

2 Replies

1326 Views

Last post by ratinyho
30 Jun 2015, 11:19
Non T25 but still VW query

Last post by voodoopenguin « 29 Jun 2015, 10:50
Replies: 4
by voodoopenguin » 28 Jun 2015, 19:17

A friend is having a problem with their 2004 1.6i Golf. From what I can gather the Golf was showing some faults so went in to the garage who said...

4 Replies

2968 Views

Last post by voodoopenguin
29 Jun 2015, 10:50
TDI INTO PICK-UP

Last post by Tez « 29 Jun 2015, 06:46
Replies: 24
by Tez » 26 Jun 2015, 06:22
1

2
Is there enough room under the load bed on a T3 pick-up to fit a 1.9 TDI without tilting it over? Cheers
24 Replies

8516 Views

Last post by Tez
29 Jun 2015, 06:46
What bette non VW engine will drop straight into 1.6 diesel?

Last post by silverbullet « 27 Jun 2015, 22:12
Replies: 7
by Troopy » 26 Jun 2015, 13:49

As above, anyone got any suggestions as to a better engine that I can swap straight out without too much fuss?

7 Replies

2939 Views

Last post by silverbullet
27 Jun 2015, 22:12
The next mod - what gearbox mod or replacement for the AAZ?

Last post by silverbullet « 25 Jun 2015, 06:05
Replies: 14
by MattBW » 23 Apr 2015, 11:00

So the AAZ is in and running nicely, with no leaks, so Im a happy camper. It's currnetly on the original 1.6d box which as you can imagine is a...

14 Replies

7068 Views

Last post by silverbullet
25 Jun 2015, 06:05

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