Re-dated (by weld-on tag) Aluminum Radiators

[Wayne M.]

Anybody ever removed one of these tags to see what's underneath? Seems they are found mostly on some of the big aluminum radiators (3007436).

You'd think that a manual re-stamp, off to the side, with XXX's over the mistake, would do the job.

[Tracy C.]

Re: Re-dated (by weld-on tag) Aluminum Radiators

Thats is kinda curious for sure. I would think the aluminum would be too thin to do much stamping after the radiator was assembled. Hence, a new date was stamped onto a separate piece and welded on. But why???

In looking at the original part number stamp, I don't see any "denting" of the aluminum adacent to the numbers. This leads me to believe the stamp is on the top plate prior to the assembly of the radiator.

Maybe Tom Dewitt could let us know how he typically dates a radiator.

tc

[Mike M.]

Re: Re-dated (by weld-on tag) Aluminum Radiators

as tracy guessed, its not feasable to restamp an assembled harrison aluminum radiator----i have experience(bad) on this subject. mike

[Tracy C.]

Re: Re-dated (by weld-on tag) Aluminum Radiators

as tracy guessed, its not feasable to restamp an assembled harrison aluminum radiator----i have experience(bad) on this subject. mike

Holy crap...I would have never guessed that restamping a component would have even crossed St Mikie's mind. I bet this was accomplished for "research purposes only" on a scrap radiator so as to know what to look for on the judging field.....right??

[Mike M.]

Re: Re-dated (by weld-on tag) Aluminum Radiators

Holy crap...I would have never guessed that restamping a component would have even crossed St Mikie's mind. I bet this was accomplished for "research purposes only" on a scrap radiator so as to know what to look for on the judging field.....right??

actually, i had a nors 61 harrison with a mid 70's mfgr date on it. it was laying right under the shelf where my saintly wife keeps her stamps(she likes to stamp her bird feeders). anyway, one nite the mice in the shop bumped a couple stamps, which , under the influence of Mr Gravity, hit the top of the harrison aluminum radiator, inflicting a quite noticable concavity in the top plate. thank god i was sleeping at the foot of the cross that nite. mike

[Tracy C.]

Re: Re-dated (by weld-on tag) Aluminum Radiators

Uh huh.......I hope the chair you are sitting in is covered by a roof that is adequately equipped with a well grounded lightning rod.

[Mike M.]

Re: Re-dated (by weld-on tag) Aluminum Radiators

Uh huh.......I hope the chair you are sitting in is covered by a roof that is adequately equipped with a well grounded lightning rod.

i'm in the sanctuary as we speak. you goin to fla? mike

[Stuart F.]

Re: Re-dated (by weld-on tag) Aluminum Radiators

You guys better be on your best behavior and have made your peace with the almighty before you come here to FL. We don't want any bad weather or curses shed upon us, specially during the meet.

Stu Fox

[Stuart F.]

Re: Re-dated (by weld-on tag) Aluminum Radiators

Oh by the way Mike, I have a 75 date stamp on my 63. Can you fix that for me?

Stu Fox

[Tracy C.]

Re: Re-dated (by weld-on tag) Aluminum Radiators

i'm in the sanctuary as we speak. you goin to fla? mike

Nah...I'm going to miss it again this year. Someday... when I'm rich and famous... I'll be able to go.

[Dick W.]

Re: Re-dated (by weld-on tag) Aluminum Radiators

actually, i had a nors 61 harrison with a mid 70's mfgr date on it. it was laying right under the shelf where my saintly wife keeps her stamps(she likes to stamp her bird feeders). anyway, one nite the mice in the shop bumped a couple stamps, which , under the influence of Mr Gravity, hit the top of the harrison aluminum radiator, inflicting a quite noticable concavity in the top plate. thank god i was sleeping at the foot of the cross that nite. mike

I had almost the same thing happen several times on tanks that I had tried to restamp, but somehow tubes of epoxy kept getting spilled on top of the radiators and somehow stamps kept falling in the correct order in the soft epoxy.

[Mike M.]

Re: Re-dated (by weld-on tag) Aluminum Radiators

I had almost the same thing happen several times on tanks that I had tried to restamp, but somehow tubes of epoxy kept getting spilled on top of the radiators and somehow stamps kept falling in the correct order in the soft epoxy.

mice must have infested yer man cave also

[Grant W.]

Re: Re-dated (by weld-on tag) Aluminum Radiators

Anybody ever removed one of these tags to see what's underneath? Seems they are found mostly on some of the big aluminum radiators (3007436).

You'd think that a manual re-stamp, off to the side, with XXX's over the mistake, would do the job.

Hi Wayne

I had just the same situation as you were wondering about. I have a 7436 rad with a tag that was dated 72 D or E. I removed the tag and below it just had a date 72
Hope this helps.
Grant

[Joe R.]

Re: Re-dated (by weld-on tag) Aluminum Radiators

Well, my stamps always fell in some bondo. If a mouse or rat somehow takes a dremmel tool and grinds the original stamp just to the back of the bottom of the stamp and then the bondo falls on it just right!!!! Then maybe someone can rescue the NOS radiator by spraying a little WD-40 on some stamps and using them on the soft bondo till they hit rock bottom.

I have an NOS radiator (bought from Dewitt) several years ago (maybe 20) that has the tag welded on.

Then I have a couple of more made in 72 with no welded tag.

Harrison stamped the dates on before the radiators were assembled and Dewitt engraves the letters and numbers into an already assembled radiator. Lots of difference in the stamps on an original and Dewitts.

There was a run of 64 radiators that had welded tags and then later some BB 436 radiators with welded tags. Probably the early 64's had leaking problems, were fixed and then sold. That was about the time Harrison started welding the overflow connection.

JR

[Wayne M.]

Re: Re-dated (by weld-on tag) Aluminum Radiators

.... I have an NOS radiator (bought from Dewitt) several years ago (maybe 20) that has the tag welded on.

Then I have a couple of more made in 72 with no welded tag.

....Harrison stamped the dates on before the radiators were assembled ..

Did I dream this, or can you have DeWitt incorporate your properly dated (original) radiator top onto his repro core ?

There was a run of 64 radiators that had welded tags and then later some BB 436 radiators with welded tags. Probably the early 64's had leaking problems, were fixed and then sold. That was about the time Harrison started welding the overflow connection. ....

Just looked at the service 3007436 in my 396, probably installed decades ago. I notice that the part # and the year "72" are the same font depth, but the month "L" is heavier and not aligned with the "72". I'm guessing it was done at some other time. No evidence of a foil sticker on this one.

To Grant Wong: thanks for letting us know what is under one of these added, welded-on tags.