7a head troubles -Help

[AndersS2]

My 7a head does not have the extra room in the head for the hallsensor.
Any tips on how to get this machined 100% like the 20vT heads?


-Bacuse it have to be 100% in the right position, orelse the timing can be bad, right?
-I do plan to run the oem Motronic

All help is appreciated greatly as this delays my lovley new engine

cheers,

[S2central.net]

You have two options -

1 - Talk to 'spink' on here - he is in the UK unfort for you but has knowhow and experience to add the hall sensor bracket.

2 - Run with an AAN dissy that 'just' has the hall sensor installed - they were like this from factory at first - lets you run 7A or AAN inlet camshaft and keep direct ignition.

Paul

[AndersS2]

So you only need the dizzy which is on the back left side of the head, and put the hallsensor into it, if I have understood you right.

Is there any pro's or con's running it this way rather than the 'factory' way?


Cheers paul!

[urquattro-island]

hello

someone got a pic of the aan dizzy?? partnr maybe?? isnt this an upgrade been done to the 3bs??

[yodasfro]

034 does the machining for the AAN CPS bracket. I'm sure you could find a machine shop to do it for you.

[spink]

Anders, any half decent machine shop can do it for you.Just take both the 7a and your old ABY head in.I would have done it for you when i sent you the head but the bridgeport wasnt setup at the time.

[aronmatic2]

So you only need the dizzy which is on the back left side of the head, and put the hallsensor into it, if I have understood you right.

Is there any pro's or con's running it this way rather than the 'factory' way?


Cheers paul!

i using the hal sender in dizzy. no problem. working perfect.

[Mark Halligan]

I got around the problem by using a slightly altered mounting boss off of an early ABY head (the later heads had this cast into them).

If you have a spare ABY, ADU, AAN head handy for reference it shouldn't be too hard to make something up.

The one below is on a converted 7A head and its running perfectly.

Cheers

[AndersS2]

Spink, thanks for the PM.

Looks like its either the dizzy way or the Mark-H-head-mod then, as my tuner really did not want to machine without a jigg.

Thanks for all the fast and good anwsers

[spink]

Mark, are those boss's available to buy still?

[Mark Halligan]

Mark, are those boss's available to buy still?

James

Don't know, I took it off of my old ABY head.

I did notice that it didn't have a part number on it though.

Cheers