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Which distributor..?

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My cabby currently has a 1.8 carb EX engine fitted and I'm almost finished with the (very slow!) build of a DX-based engine to replace it with.

I believe the replacement engine has come out of an early GTi as it doesn't have any alignment pins for the head gasket on the block. Currently it has a 026 905 205AG distributor fitted, which I think is the GTi version, but I need to remove it anyway as it's not aligned correctly so the intermediate shaft timing mark doesn't line up…

Should I replace it with a carb dizzy (026 905 205H?) or will it be OK with the GTi one? Some searching on here implies the vacuum advance characteristics differ but I'm not sure exactly how.

The plan is to run it in with my spare Weber DMTL on the stock inlet manifold and then swap over to a pair of Weber 40DCNFs on my Hartmann Motorsport manifold once it seems happy and ready for more aggressive tuning. Will I need to swap the flywheel for the carb one at the same time to make timing easier?

Thanks in advance!

"Klaus": 1987 Clipper Cabrio, LA7Y, 1.8 Weber (auto)
1995 Corrado VR6, LK4Z: RIP
2003 Golf R32, LB5R

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can you double check that part number? comes up as a b2 passat 1.3 code :lol:

a kjet GTI dizzy is the one to have, that plus a GTI cam and a re-tune to GTI ignition settings will give you near GTI power levels.

swappign the flywheel isnt needed, you can either make a new 6 degree BTDC marker or get a timign light with an advance dial. tbh you'll probably find you can get a few more degrees extra advance on it anyway they can usually go a bit further once well tuned

Hello my name is John and I'm a dub addict.



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This is a bit of a parts-box engine so it may not be a surprise that it has some weird parts!

Pic of the carb:


All the timing marks line up now I've fiddled about with the dizzy, and with a fresh cambelt on it's not smacking the valves or going out of time so it clearly works. I'd rather replace it with a rebuilt one for peace of mind though, and preferably whatever will give me the most power 😀 Is the K-Jet dizzy 026905206A?

The block's bored to 1.9 and it has a ported hydro head with 40/35mm valves and a 270° Piper cam so I'm expecting a pretty decent amount of shove with the dual carbs fitted :-)

Thanks,

Nick

"Klaus": 1987 Clipper Cabrio, LA7Y, 1.8 Weber (auto)
1995 Corrado VR6, LK4Z: RIP
2003 Golf R32, LB5R

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026905206A is earlier EV/DX code so that would have a rounded dizzy plug, another number which works is 026905205H. later EV/DX one with the square plug is 026905205AA or 026905205AK.

pick the one which matches your dizzy/coil/spark module loom, or if you have both types of loom/plug to choose from pick whichever dizzy comes up first ;)

be sure to post any other numbers you find, as there are a few different ones which were superceeded/replaced the ones above

Hello my name is John and I'm a dub addict.



My wiring diagrams and other documents have moved here:

VAG Documents & Downloads

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Thanks! The car is square plug so I probably want one of the latter two. I'll have a scout about :)

"Klaus": 1987 Clipper Cabrio, LA7Y, 1.8 Weber (auto)
1995 Corrado VR6, LK4Z: RIP
2003 Golf R32, LB5R

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you could probably swap the hall sensor out of yours into whatever old unit you find, but its a bit of a faff. something to bear in mind!

also since the unit looks brand new it might be a refurb unit with different internals even…

Hello my name is John and I'm a dub addict.



My wiring diagrams and other documents have moved here:

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Ha, yes, good point, it looks pretty presentable compared to the rubbish on eBay right now! Guess I'll stick a new cap and rotor arm on and just renew the seals for now, it's not like it's hard to change later if I need to.

Are the rev-limiting rotor arms any good or just a gimmick? They make a nice noise…😂

"Klaus": 1987 Clipper Cabrio, LA7Y, 1.8 Weber (auto)
1995 Corrado VR6, LK4Z: RIP
2003 Golf R32, LB5R

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the kjet 8v either have a rev limiter in the rotor arm, or in the fuel relay depending on age. up to you really, I'd probably go for a fuel relay limiter, as you repalce the rotor arm more often (hopefully :lol:) so I'd want the cheaper and easier to get type

Hello my name is John and I'm a dub addict.



My wiring diagrams and other documents have moved here:

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I don't have a fuel pump relay as it's all mechanical (carb car, twin carb engine) so rotor arm it is 😂 Not like I have cats to worry about and I'm a bit of a sucker for hard-cut limiters…

"Klaus": 1987 Clipper Cabrio, LA7Y, 1.8 Weber (auto)
1995 Corrado VR6, LK4Z: RIP
2003 Golf R32, LB5R

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good point :lol:

Hello my name is John and I'm a dub addict.



My wiring diagrams and other documents have moved here:

VAG Documents & Downloads

You'll need to sign into google/gmail for the link to work! (its free!)
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