Interesting that you mention this. I've been looking at these distributors, too. A new, breakerless, adjustable advance, distributor for under $200 is a great deal.Has anyone tried this complete distributor. I am not talking about adding petronix electronic ignition into your existing distributor.
Interesting that you mention this. I've been looking at these distributors, too. A new, breakerless, adjustable advance, distributor for under $200 is a great deal.
The ebay seller has sold 8 of them so far, it would be good to contact one of those buyers to see what they experienced because they are Alfa owners.
One buyer has bought 4 of them.
It is specific for Alfa, but again who knows what kind of true information the seller is given.
Well, you need roughly another 50% of advance - a max closer to 36 at the crankshaft, not 24. 24 degrees of total advance is about right for an air-cooled Volkswagen, so I'll bet that 180out's suspicion in post #2 is correct.What is the standard curve on the Alfa, for example 2.0L engine?
You're right Ed. I was thinking of total advance (static + distributor advance). But the 24 degrees is just how much the distributor moves. If a distributor is set at 10 degrees of static advance, another 24 would take it to 34, which is in the range of what an Alfa needs. I still think 36 - 38 would be better, but why quibble.24 degrees is plenty for a tuned 2L engine - just take a look at the Jim K curve. The problem with this one is that the advance starts at 600 rpm. So the advance is pretty steep through the idle rpm and that means you will have a hard time getting it to idle, especially with Webers. It will creep up to an idle rpm that is higher than you want. It would be a decent curve if it started 800 rpm later.
I suppose I wouldn't except that it is sold as a replacement for Alfa motors...It is most likely an air cooled VW distributor with a solid state switch. Why would anyone expect it to work well on an Alfa?
True, but as Gordon Raymond has pointed out, the JF4 is one of the best distributors ever made. It's internals are of superior quality so rebuilding one actually makes sense, especially if original appearance is important. A lot of people have these sitting on shelves. I haven't looked closely at a 123's internals but the only other modern distributor that I know of (I'm sure there are others) that would work in an Alfa is an MSD which is a very well built distributor.As far as rebuilding a Bosch dizzy, I'm thinking that by the time you buy a decent unit . . .