Lurch2461 Posted January 26, 2007 Share Posted January 26, 2007 Hi All, Can anyone help me out? I have a dilemma in that I'm trying to work out what model distributor I have. I don't have the CAS mounted on the block, but also don't have what I would think to be the CAS on the distributor (black plastic box). I can't see the part number without removing it from the car and I don't particularly want to disturb it right now. I have a spare (out of L20et) that has a round 4 pin plug on it and I guess it's an early model (81) as an 81 CAS went on ebay recently and that had a lead with a similar plug on the end. Does anyone have pictures of the 82/83 280ZX Turbo distributor, and the part number for referrence. Cheers, D Quote Link to comment Share on other sites More sharing options...
Tony D Posted January 26, 2007 Share Posted January 26, 2007 The 81 has the bock/A-C mounted CAS. The 82/83 has the distributor mounted CAS. They both have the same plug, and are interchangable. The black plastic box on the exterior is a standard dissy. Quote Link to comment Share on other sites More sharing options...
Gavin Posted January 26, 2007 Share Posted January 26, 2007 Take the cap off, pull off the rotor, unscrew the two screws under that and if you have late model dizzy you should expose the optical trigger wheel setup. I'm sure theres an easier way but thats easy enough. Quote Link to comment Share on other sites More sharing options...
Tony D Posted January 26, 2007 Share Posted January 26, 2007 If you pull the cap off you will find one of four possible interiors which do not change: "Spiky Ringed Wheel" = Conventional Dissy, with "Black Box" on the exterior (or simply some wires if it's a 260/280Z) "Nothing"= 81 ET dissy, needs the Airconditioner Bracket Mounted CAS unit for the ECU to function, it's only function is purely to DISTRIBUTE the spark. "Chromate Cap with small screws"= 83/82 CAS Dissy Assy. "Points and Rubbing Block"= RUN AWAY RUN AWAY RUN AWAY! Discard and replace with Lumenition, Perlux, or whatever you want but get rid of mechanical breaker points! That's all you need to do for the quick check. No need to remove the chromated cover---if it's in there, it's a CAS. If it's just the diecast bottom of the dissy, it's somewhere other (81) Quote Link to comment Share on other sites More sharing options...
Lurch2461 Posted January 27, 2007 Author Share Posted January 27, 2007 If you pull the cap off you will find one of four possible interiors which do not change:"Spiky Ringed Wheel" = Conventional Dissy, with "Black Box" on the exterior (or simply some wires if it's a 260/280Z) "Nothing"= 81 ET dissy, needs the Airconditioner Bracket Mounted CAS unit for the ECU to function, it's only function is purely to DISTRIBUTE the spark. "Chromate Cap with small screws"= 83/82 CAS Dissy Assy. "Points and Rubbing Block"= RUN AWAY RUN AWAY RUN AWAY! Discard and replace with Lumenition, Perlux, or whatever you want but get rid of mechanical breaker points! That's all you need to do for the quick check. No need to remove the chromated cover---if it's in there, it's a CAS. If it's just the diecast bottom of the dissy, it's somewhere other (81) Thanks Tony D, But this is what I have. The first pic shows what's under the cap, the rotor button is held on by a small screw as is the cap. Second shows what's under the plate and third refers to a white plug. This is what is on the the dissy in the car, but I guess the leads are just swapped over (round plug lead for white square plug) eh! Please tell me what I have got. And the lead with the white square plug on it? Does this come in any 280ZX Turbo's, as it might be worth having a spare if it can be acquired. Thanks, D Quote Link to comment Share on other sites More sharing options...
tec280zx Posted January 27, 2007 Share Posted January 27, 2007 Looks to be an 82-83zxt dist. Quote Link to comment Share on other sites More sharing options...
Kash Posted January 27, 2007 Share Posted January 27, 2007 Yep, trigger wheel and optical pick-up....82 + Quote Link to comment Share on other sites More sharing options...
stagefumer11 Posted January 27, 2007 Share Posted January 27, 2007 Factrory L20et Dizzy also. Same as my old l20et that i just pulled from the r30. Got another lying around from a 83 r30, Its still optical, Just looks like diffrent circits, Coverd in clear selant. *weird*, Still worked the same Quote Link to comment Share on other sites More sharing options...
Tony D Posted January 27, 2007 Share Posted January 27, 2007 If you want to get a 'better' connector, find yourself a VG30. The connector in the bottom of their distributor is identical to the one in the one you have. The connector on the end where yours is white (ours is a round four pronger) is a grey weatherpack connector. if you 'harvest' both connectors from the VG engine (Turbo or N/A) on the 'grey' end, you will have a connector that is much more waterproof, and is easier to attach and separate. But yeah, that's a "Late" optical trigger CAS. 82/83 Cheers! Actually, thinking about this, I would much rather have that white plug than the round plug we got! Quote Link to comment Share on other sites More sharing options...
Lurch2461 Posted January 29, 2007 Author Share Posted January 29, 2007 Thanks to you all for confirming my thoughts. You guys know more about these than any of us down under. Quote Link to comment Share on other sites More sharing options...
george.bryant Posted January 30, 2007 Share Posted January 30, 2007 Thats good to know about the VG30 plugs. Lurch2461 I have a spare distributor the same as the one you picture. The plug on the dizzy is the same as the l20et dizzy so i'm sure theyre interchangable. Anyone need a round for pin plug? Quote Link to comment Share on other sites More sharing options...
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