a question on distributor of a csi

[deQuincey]

unfortunately i can not place the picture, but a friend has a 1974 csi

yo may know the differences between the distributors from a CS and a CSI, but mainly we can mention two:

1- smaller cap for the CSI version
2- a "u" shaped plate in the CSI instead of conventional ruptors on the CS

well apparently this CSi has ruptors, can anyone identify a reason ? is it right ? is it better to try to get a proper CSI distributor

regards

 

[deQuincey]

here you can see the pics of the distributor menioned before

http://www.bmwfaq.com/f12/recambios-encendido-659633/

 

[HB Chris]

This is the CSi distributor in first pic, it has what is called I believe a "large case." The condensor is inside the case, carbs have it outside and are known as small cases (second pic).

 

[tomcolitt]

Hi Dequincy

It's the other way around. The CSi cap and distributor are larger because they also have electrical trigger contacts that are slid into the side of the distributor and they fire the electric fuel injectors. I discovered that the cap and rotor is the same size as an easily available cap from an 1980s Porsche, 530i.....

 

[deQuincey]

yes, you are right the cap of the csi is larger in diameter, but shorther in height,
is this right ?

 

[tomcolitt]

I don't think it is shorter either, but maybe it looks like it is....The stock number is 03008. Bosch number: 1 235 522 053