Engine swap

[barry sprout]

Dudes

New to Golfs (tho worked on other cars) so forgive my ignorance.

I have an 8v 1.8 Digi Mk2 1990 Hreg but the motor is going out to pasture. So buying a replacement unit.

Chatted to a lad who is selling a motor but he's not sure if it's off a digifant car or not. Obviously I wnat to plug it straight in and not have to faff about with changing loads of loom etc over (although the motor comes with all the ancillaries I believe.

The airbox and throttle boby assembly sounds the same size and shape as mine (big rectangular airbox attached to oval-ended throttle body casting via corrugated tubing) but the code numbers on the airbox and the attached throttle body are different to mine.

Codes on his airbox include AG51, LP911 and Filter No 113129620. The codes on his throttle body is 026133353B.

The code numbers on my airbox include AG297, LP1043 and Filter No 859129620. Code on my throttle body is 037133223A.

Wondered if anyone knew how different 1.8 engines can be and how this complicates swapping? I assume that the actual block is the same across the board, but that the head must differ between digi and kr units? Certainly the loom differs and the dizzy - I really want to buy a motor that's just plug and play for my car.

Any advice appreciated.

[turbodub]

Ask him for the engine code. You wan't a 'PB' engine for your car. This number should be stuck on the top of the cambelt cover. If the car is a MK2 GTI then it will either be Kjet or Digifant.  If it is Kjet then there will be braided fuel hoses travelling from the metering head near the airbox to the fuel injectors on the head.

What registration is the car? If it is post 88 then it will most likely be a Digifant. 

[Bluefox]

Another way of telling is the actual position of your airbox vs his - unless I'm very much mistaken, the K-Jet's had the airbox on the nearside didn't they? Digi airboxes are on the offside.

[J.stafford16v]

Has the bottom and head gone? Cause I've got a bottom end for a digi available, only done 85k pm if interested.

[barry sprout]

Hey thanks

So let me get this right.....

It's got to be a PB engine to work at all.

If it's a Digi PB engine I can just lob it in.

If it's  Kjet engine I can't - BUT I'm getting all the complete motor and loom etc with it - so if it is a Kjet engine can I do the conversion reasonably easily into my car??

 Ãƒâ€šÃ‚ 

[Neaty]

http://www.golfgtiforum.co.uk/index.php?topic=46505.0

check that thread out for digi vs k-jet conundrums

[heinz]

or stick a 2.0 mk3 motor in with a digi head engine code 2e is the best for this swap

[...joe]

Hey thanks

So let me get this right.....

It's got to be a PB engine to work at all.

If it's a Digi PB engine I can just lob it in.

If it's  Kjet engine I can't - BUT I'm getting all the complete motor and loom etc with it - so if it is a Kjet engine can I do the conversion reasonably easily into my car??

 

digi's are pb's........... k-jet can be fitted but not worth the extra work. the link neaty put up will show which is which...

[barry sprout]

Yoo gents are scholars and acrobats to man

[golfmk2boy]

Hi Mate,

Almost completed my digifant swap now, if you have any questions let me know as I check the forum all the time...

IT has taken me about 4 months, and I have spent quite abit on replacement parts.  Many new bolts, screws etc...

I cudda done it far quicker if I had all the parts before I started 

All in all the swap is very straight forward.  Here is an outline of what I did;

1. Take bumper off
2. Unplug all water pipes and take radiator off.
3. Jack car up and unscrew driveshaft bolts to gearbox.  You will need a spline key tool from halfords.  Kinda like a star shaped head
4. Unplug all electric connections
5.  Unscrew front engine mount, left-side mount and gearbox mount
6. Disconnect gear linkage.
7. Lift her out with engine crane....

Think thats is everything....