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> OEM electronic distributors for the Type 4?, What was used on other VWs? Cap'n?
lapuwali
post May 25 2006, 12:02 PM
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I'm gathering parts for my Megasquirt conversion, and I believe some later VWs (Bus or Vanagon?) used OEM electronic ignition in the distributor. This true? Which models?

Note that advance curve, vac advance, etc are all completely immaterial. I'll only be using the distributor to trigger the ECU and, uh, distribute the spark. Advance will be set by the ECU (advance mech. in the distributor will be locked). I could engineer this using one of the many 009s I have on the shelf, but using an OEM distributor would be a lot easier.

Cap'n? I'm sure you'd know...
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lapuwali
post May 25 2006, 02:42 PM
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Dave_Darling
post May 25 2006, 03:05 PM
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I think it was the Digifant-equipped Vanagons. May have been the Wasserboxer engine'd ones? IIRC, there was no advance or retard of any kind built into it. Only useful for a full EMS that still uses a distributor to point the sparks to the correct cylinders--and to provide a TDC signal.

--DD
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Cap'n Krusty
post May 25 2006, 03:13 PM
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QUOTE(lapuwali @ May 25 2006, 01:42 PM) *

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CA market 79 busses and Vanagons 80-85 should work. You can lock down the vacuum advance plate and the mech advance. Later will fit and might work, but I dunno.
The Cap'n
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lapuwali
post May 25 2006, 04:46 PM
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No advance or retard actually makes this easier. Sounds like the old Motronic distributors, which were just a shaft, a bushing, a rotor, a cap, a trigger wheel, and a trigger sensor. Would be ideal, in fact.

Cap'n, if it will fit, it will work. I'm mostly concerned about fitting the stock hole in the case and having the same drive dogs.

This would be post-85 Vanagon, then?
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Aaron Cox
post May 25 2006, 04:48 PM
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just curious...

what is the access hole on the back of the case for? you know the one that gives you a clear view of the back o fthe flywheel? bout 1.25" diameter....
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Cap'n Krusty
post May 25 2006, 05:02 PM
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QUOTE(Aaron Cox @ May 25 2006, 03:48 PM) *

just curious...

what is the access hole on the back of the case for? you know the one that gives you a clear view of the back o fthe flywheel? bout 1.25" diameter....


Access port for the torque converter bolts on a T2 or T4 automatic. The Cap'n
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Aaron Cox
post May 25 2006, 05:04 PM
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QUOTE(Cap'n Krusty @ May 25 2006, 04:02 PM) *

QUOTE(Aaron Cox @ May 25 2006, 03:48 PM) *

just curious...

what is the access hole on the back of the case for? you know the one that gives you a clear view of the back o fthe flywheel? bout 1.25" diameter....


Access port for the torque converter bolts on a T2 or T4 automatic. The Cap'n


thanks CK

so nothing to do with timing or ignition.... (like magnets on a flywheel etc...)
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MartyYeoman
post May 25 2006, 05:06 PM
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QUOTE(Aaron Cox @ May 25 2006, 02:48 PM) *

what is the access hole on the back of the case for? you know the one that gives you a clear view of the back o fthe flywheel? bout 1.25" diameter....


Aaron,
I use that hole to lock the flywheel (insert pin into wheel rotate against hole) when I need to remove things on the fan end of things (fan, fan mount, front seal etc.) and the transmission is attached (denying access to flywheel teeth).
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Cap'n Krusty
post May 25 2006, 05:37 PM
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QUOTE(Aaron Cox @ May 25 2006, 04:04 PM) *

QUOTE(Cap'n Krusty @ May 25 2006, 04:02 PM) *

QUOTE(Aaron Cox @ May 25 2006, 03:48 PM) *

just curious...

what is the access hole on the back of the case for? you know the one that gives you a clear view of the back o fthe flywheel? bout 1.25" diameter....


Access port for the torque converter bolts on a T2 or T4 automatic. The Cap'n


thanks CK

so nothing to do with timing or ignition.... (like magnets on a flywheel etc...)


True. However, there's no reason you couldn't insert pins in the back of the flywheel and rig a sensor in the hole. Be a LOT more accurate than doing it on the fan end, and simpler, too. Of course, you could use the other hole for the pickup, the one on the other side with the sensor in it. The Cap'n
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Katmanken
post May 25 2006, 07:00 PM
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86-91 2.1L wasser Vanagon use a distributor that is just a body, a shaft, a hall effect sensor, 4 notch timing can and the cap and rotor.
Ken
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