May be of use to someone.
https://www.ebay.com/itm/183534722695?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=nLfobrrwTwy&sssrc=2047675&ssuid=2edIDDLoQLa&widget_ver=artemis&media=COPY
> On 08/14/2024 2:00 PM EDT tigers-request@autox.team.net wrote:
>
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> Today's Topics:
>
> 1. Re: Distributor Vacuum advance Round 2 (D or G at sbc)
> 2. Re: Distributor Vacuum advance Round 2 (Ron Fraser)
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> That Z5TF is the Ford engineering number, not the part number. It is Tiger
> specific but not the part number, the part number (if you were able to order
> it) is C4OE-12127-A. The advance is B9AF-12370-A and is used on many Ford
> engines. This B9AF-12370-A part has been obsolete for a while, it was
> superseded by a vacuum advance that has the vacuum hose connection built into
> it, this advance is still available and will work, but it isn't concours
> correct.
>
> David Franchi
>
>
>
>
> On Tuesday, August 13, 2024 at 03:18:15 PM PDT, Stu <sabre2tgr@gmail.com>
> wrote:
>
>
> Ron directed me to the right part number location, and the number there is
> Z5TF-12127 C.This number also doesn't appear at any of the usual parts
> sources.
> An article on the CAT forum confirms that this is the correct Tiger
> distributor, and there is mention of it on a few other sites.
>
> But is Z5TF equivalent to any other Cxxx distributor numbers, at least for
> vacuum advance modules?
>
> Stu
>
>
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>
> Stu
>
>
>
> Iâ??m not sure why Ford made the ID # of these distributors Z5TF-C unless it
> was to make sure they did not go to the Ford production line.
>
>
>
> The Z5TF-C has nearly the same advance curve as C4OF-A.
>
> Z5TF-C - Ford equivalent is C5JT-C
>
> C5AF-M is the MK II distributor
>
>
>
> The vacuum canister for all these distributors is similar but not the exact
> same.
>
>
>
> The early canister B9AF-12379-A has threaded boss.
>
> The later canister C5AZ-12370-A - later style with no threads â?? threaded
> boss is on distributor housing.
>
>
>
> You need the later style canister. Use C5AF-M for the ID#.
>
>
>
> I believe most or all the vacuum canisters available today are the later
> style and many of them have an internal screw to change the vacuum
> advance.  All of these use a vacuum hose not the original steel hardline.
>
>
>
> For concours, there are some shops that rebuild the original vacuum canister.
>
>
>
> Ron Fraser
>
>
>
> From: Stu <sabre2tgr@gmail.com>
> Sent: Tuesday, August 13, 2024 6:10 PM
> To: Tiger Net <Tigers@autox.team.net>; rfraser@bluefrog.com
> Subject: Distributor Vacuum advance Round 2
>
>
>
> Ron directed me to the right part number location, and the number there is
> Z5TF-12127 C.This number also doesn't appear at any of the usual parts
> sources.
>
> An article on the CAT forum confirms that this is the correct Tiger
> distributor, and there is mention of it on a few other sites.
>
>
>
> But is Z5TF equivalent to any other Cxxx distributor numbers, at least for
> vacuum advance modules?
>
>
>
> Stu
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