GM #1846216 Point Shield Covers

[Michael M.]

What year corvettes did point shield covers come from the factory? My research finds 1970-74, is that correct.

[Larry M.]

Re: GM #1846216 Point Shield Covers

That sounds right. Joe L will likely confirm.

Larry

[Terry M.]

Re: GM #1846216 Point Shield Covers

I can vouch for the 1970 start. Later in production, though. This co-coincided with the smaller distributor shield which began about s/n 12,000.

[Joe L.]

Re: GM #1846216 Point Shield Covers

What year corvettes did point shield covers come from the factory? My research finds 1970-74, is that correct.

Michael------


Yes, 1970-74 is correct with it starting later in 1970 as Terry has noted. However, and unknown to a lot of folks, the shields were also added to SERVICE distributors for earlier applications beginning in about 1971.

[Michael M.]

Re: GM #1846216 Point Shield Covers

Joe, thank you. I think we were all waiting for your response. Can I assume the shields were also used on Camaros, Chevelles, and Novas.

[Joe L.]

Re: GM #1846216 Point Shield Covers

Joe, thank you. I think we were all waiting for your response. Can I assume the shields were also used on Camaros, Chevelles, and Novas.

Michael-----

Yes, the shield was also used on other Chevrolet models as well as most other GM car and truck lines in the 1970-74 period.

[Mark E.]

Re: GM #1846216 Point Shield Covers

That's interesting. I've worked on a lot of '70-'74 GM cars but never saw on with a shield.

What is its purpose?

[Joe L.]

Re: GM #1846216 Point Shield Covers

That's interesting. I've worked on a lot of '70-'74 GM cars but never saw on with a shield.

What is its purpose?

Mark-------


Radio interference suppression. One reason why a lot of GM vehicles with these shields have been "shorn" of them over the years: GM instructed that when the Uniset point sets (assembly of points + condenser) were used, the shield was to be removed. Apparently, the Uniset points have some sort of inherent RF suppression which obviates the need for the shields. In fact, I'm not sure that the shields can even be installed after Unisets are installed.

[Terry M.]

Re: GM #1846216 Point Shield Covers

Mark-------


Radio interference suppression. One reason why a lot of GM vehicles with these shields have been "shorn" of them over the years: GM instructed that when the Uniset point sets (assembly of points + condenser) were used, the shield was to be removed. Apparently, the Uniset points have some sort of inherent RF suppression which obviates the need for the shields. In fact, I'm not sure that the shields can even be installed after Unisets are installed.

The configuration of the Uniset point sets precludes installation of the RFI shield. The problem is two objects can not occupy the same space.

[Peter H.]

Re: GM #1846216 Point Shield Covers

My 1972 Caprice With A 400 Small Block Did Have Them on Until I Installed The New Uni Point Setup . I Still Have Them With The Label .
Peter

[Michael M.]

Re: GM #1846216 Point Shield Covers

Peter, the shield I have in the picture also has the label on the inside.

[Steven B.]

Re: GM #1846216 Point Shield Covers

Somewhere around here I have one stored that is a one piece with hole in the middle for rotor shaft. Anyone know what that one is for?

[Joe L.]

Re: GM #1846216 Point Shield Covers

Somewhere around here I have one stored that is a one piece with hole in the middle for rotor shaft. Anyone know what that one is for?

Steven------


I've never seen one like this.

[Dan L.]

Re: GM #1846216 Point Shield Covers

AC673DC4-B883-4455-BF08-1A1FC2DCDF9C.jpgMy ‘70 Z28 distributor with the points shield.