difference between a AEB and AMB motor

[BreakMyWallet]

just curious. i took out the motor in my 03 a4 today and its a amb. i havent looked at the other motor (its at the shop) and checked if its an AEB.

what are the biggest differences? do i need a new ECU or anything?

is the oil pan/turbo the same?

im swapping those from the old motor HOPEFULLY

theyre both 1.8T

[A4 TSCHUSS]

AEB will have a big port head (intake ports are bigger). AEB will have 20mm wrist pins on the rods/pistons compared to 19mm of an AMB. AEB is an 058 block casting and AMB is 06a. AEB has external waterpump, AMB has internal waterpump. AEB has a shaft that goes up in the block to run the oilpump, AMB had a chain that runs the oilpump. AEB is narrower inside the block so there are clearance issues if a longer stroke crank is put in to make it 2 liter, so you will need to grind the inside of the block. AMB has secondary air injection that connects to the back of the head, AEB doesn't.

[BreakMyWallet]

god fuking damnit.

so will it still work in a car that came with a amb motor? all i need is the oil pan and turbo to work with it.

and the transmission

[A4ringedONE8T]

Yes it can work, no it won't be too easy. Also keep in mind you have to swap the VVT from your AMB head as well as the cam position sensor ring off the intake cam. You will also need the tapered adaptor/spacer for the intake manifold to keep from creating turbulance in the IM going from small port to large port

[A4ringedONE8T]

And yes oil pan's and turbo's will swap

[A4 TSCHUSS]

Are you saying you want to take your engine out of your and put this one in but just put your oil pan and turbo onto it? You would also need to change the fuel rail because it has a fuel return on the rail where the AMB only has a fuel feed line going to the rail. Also like I said, the head doesnt have a port in the back of it like the AMB where the Secondary Air Injection would bolt up. That isn't a big deal though but if you were to take that pump and stuff out you will have a check engine light from it. Also the throttle body on the AEB is cable driven where your AMB is drive by wire so you would need to change them as well. I am probably forgetting something else but, yes you can run it in there you will just need to change some stuff. Also the location of the accessories are in different spots where they bolt up between the two models. I don't know if there are bolt holes to put your accesory brackets to it or not.

[AudiA4_20T]

don't put the 058 block in the B6. Wiring will suck and its a crappier block overall. Put the AEB head on your block and call it a day

[BreakMyWallet]

well thats a relief. sort of.

im so use to bmw's and engine codes. i bought the engine and figured it would be fine since both cars are a 2003 1.8t quattro :(

that stuff doesnt sound really difficult though. am i going to need a reflash of any sort?

where can i get the spacer at?

[BreakMyWallet]

block is gone on the amb. piston shot out of it.

[A4 TSCHUSS]

Yes it can work, no it won't be too easy. Also keep in mind you have to swap the VVT from your AMB head as well as the cam position sensor ring off the intake cam. You will also need the tapered adaptor/spacer for the intake manifold to keep from creating turbulance in the IM going from small port to large port

It sounds like he wants to swap a complete engine not just the block. So it would have an aeb head and intake manifold complete on the engine. I guess he needs to be more clear of what he is trying to do.

[A4ringedONE8T]

well thats a relief. sort of.

im so use to bmw's and engine codes. i bought the engine and figured it would be fine since both cars are a 2003 1.8t quattro :(

that stuff doesnt sound really difficult though. am i going to need a reflash of any sort?

where can i get the spacer at?

An 03' A4 NEVER came with an AEB engine

[A4 TSCHUSS]

well thats a relief. sort of.

im so use to bmw's and engine codes. i bought the engine and figured it would be fine since both cars are a 2003 1.8t quattro :(

that stuff doesnt sound really difficult though. am i going to need a reflash of any sort?

where can i get the spacer at?

The AEB didn't come in a 2003 so no clue what you are talking about. It came in the older b5 model A4 back in 98-99.

[BreakMyWallet]

so far i have

1. swap VVT from the AMB --> AEB
2. Swap cam position sensor ring
3. spacer for intake manifold
4. change fuel rail (amb= fuel feed going into rail)
5. secondary air pumpm (all it does it warm up the car faster doesnt it)
6. change throttle body to cable (i like cable better anyway, atleast in my e46)

[BreakMyWallet]

An 03' A4 NEVER came with an AEB engine

well that POS lied to me then.

thats gonna cause more trouble for smog as well. but whatever i can deal with that.

yes. my amb motor is blown. i have a complete AEB motor (just missing turbo, oil pan, and timing belt, which im wanting to swap over) thats i want to put into my b6.

sorry for the miscommunication

[A4ringedONE8T]

so far i have

1. swap VVT from the AMB --> AEB
2. Swap cam position sensor ring
3. spacer for intake manifold
4. change fuel rail (amb= fuel feed going into rail)
5. secondary air pumpm (all it does it warm up the car faster doesnt it)
6. change throttle body to cable (i like cable better anyway, atleast in my e46)

lol I think you're a bit confused

You will need to use the AMB fuel system (rail). The AEB and AMB intake manifold fuel rail supports are different FYI, your going to have to modify the AMB fuel rail to keep the injectors tight in the seats while using the AEB IM.

AEB does not have SAI so don't plan on passing emissions legally

You have to use DBW, you can NOT switch to DBC like you are stating

[BreakMyWallet]

ah alright.

i hate to sound like a n00b, but im mostly a wheels,suspension,aesthetics kind of guy.

i have someone helping me drop in the motor that has done a few audi's, but never a different engine i dont think.

ill head to the shop tomorrow and be 100% sure that its an aeb engine. the dude said it for sure came out of a B6, i would hate to think that he lied to me.

[BreakMyWallet]

btw, how does a swap from cable to wire work?

i mean to use the existing drive by wire, im sure its not a plug and play type thing.

and how would i swap the VVT from an AMB to an AEB?

i really appreciate you guys helping me out. im sure there is no diy for the things i asked

[A4ringedONE8T]

btw, how does a swap from cable to wire work?

i mean to use the existing drive by wire, im sure its not a plug and play type thing.

i really appreciate you guys helping me out.

Use the AMB throttle body on the new motor, it will bolt right up to the AEB intake manifold if that's what you're using.

[BreakMyWallet]

oh okay, sounds good. yep im using everything but those 3 items i listed

and as far at the VVT? how would i swap that?

[A4ringedONE8T]

ah alright.

i hate to sound like a n00b, but im mostly a wheels,suspension,aesthetics kind of guy.

i have someone helping me drop in the motor that has done a few audi's, but never a different engine i dont think.

ill head to the shop tomorrow and be 100% sure that its an aeb engine. the dude said it for sure came out of a B6, i would hate to think that he lied to me.

If it's from a B6 it is NOT AEB. If it is AEB it's from either a 98-99 A4 or Passat

[A4ringedONE8T]

oh okay, sounds good. yep im using everything but those 3 items i listed

and as far at the VVT? how would i swap that?

Unbolt it from one and bolt it into the other It's on the back side of the head, part of the cam chain tensioner

[BreakMyWallet]

word.

damn. im gonna be pissed if i have to swap all this shiet and pay 200 for an illegal smog. hopefully the dude helps out a bit

[BreakMyWallet]

Unbolt it from one and bolt it into the other It's on the back side of the head, part of the cam chain tensioner

oh alright. sounds good

so its not THAT bad. both motors will be side by side tomorrow so it shouldnt be too bad. more work then it should have been though

[BreakMyWallet]

and what about the waterpump issue? if its internal maybe the new motor came with it, its still in the crate

[A4ringedONE8T]

oh alright. sounds good

so its not THAT bad. both motors will be side by side tomorrow so it shouldnt be too bad. more work then it should have been though

This isn't something you're going to do quickly. You will also need some new OEM parts to swap part of these things. Just for the VVT/tensioner you will need new cam seals and tensioner gasket. FYI you have to pull the cams out to swap the tensioner

[A4ringedONE8T]

and what about the waterpump issue? if its internal maybe the new motor came with it, its still in the crate

Have fun with that, there is no solution other than to find some radiator hoses and/or cut/modify a few different ones to make it work. AEB is an external pump

[BreakMyWallet]

and i wont need any sort of reflash or ecu from an aeb motor?

[A4ringedONE8T]

and i wont need any sort of reflash or ecu from an aeb motor?

Not if swapping all the appropriate accessories

[A4 TSCHUSS]

The accessories bolt up different on the two engines also don't forget and I am not so sure that you can swap the brackets because there may not be threaded spots on the block to do it.

[dougyfresh]

OP
If I were you I would find an 06A casting block and buy some 20mm WP connecting rods (Brute, Scats, IE, etc...) and use the AEB pistons and crank to build the bottom end (new bearings and piston rings obviously). Then bolt the AEB head onto the block and call it a day.

Monkeying around with trying to fit the AEB block into the B6 A4 chassis is something you do NOT want to try or attempt.

06A blocks can be found everywhere and for cheap. Unfortunately the only spare 06A block I have will not accept AEB pistons for the bore is too large. So, you can search around VW Vortex or even give BobQ an email (qedpower.com) for I know he has a ton of blocks available. I was just there yesterday.

[BreakMyWallet]

this is going downhill. might just have to sell the motor for a correct one

[dougyfresh]

this is going downhill. might just have to sell the motor for a correct one

Before you do that.

1) what is your hardware configuration
2) what are your goals?

If your goals are to just get a running B6 that has little to no mods then I would sell the AEB motor and look elsewhere. I know of a B6 AMB long block with 88k on it that might be coming available in late July. It is not a definite yet..

[BreakMyWallet]

i just want to get the car running.

i sold my e46 to get out of debt, i dont want the audi to put me back into it

[BreakMyWallet]

okay, before i start trippin out too much, the dude just told me its the stock motor that came out of his brothers 2004 A4.

ill check the code on it tomorrow

[A4 TSCHUSS]

2002-2005 are all AMB engine code. You are golden if that is right. Only thing is that you have the same type of transmission that the car had because the automatic and manual crank are different to connect up everything transmission wise (torque converter/flywheel).

[BreakMyWallet]

it was a manual :)

ill find out tomorrow morning.

but seriously fellas thanks for your help

[BreakMyWallet]

pulled the motor today.

turns out that the other motor is an aeb. and all the douschebag that sold it to me had to say was "oh my bad, i thought his car was a 2004, it is a 1998"

filing a dispute

if anyone can find me a block for the amb motor id really appreciate it! one of the pistons shot out of the block so im just gonna switch it out for a new one

thanks!

[AudiA4_20T]

I can get you a block tomorrow I'll throw it in my uncles pick-up. I'll have it up in NJ tomorrow evening

[BreakMyWallet]

really? but i live in socal brotha. ill pm you.

[AudiA4_20T]

ahh I thought it was Lancaster PA, damn lol