Is this an original 1967 Expansion Valve for C60 factory Air Conditioning?

[Scott S.]

Is the original 1967 part number for the expansion valve 5910489? The CC cross-reference lists their current "correct" expansion valve as corresponding to GM # 5910613, and it looks like the same expansion valve the other vendors have, but I think that is a C3 part beginning in the 1968 model year.

I didn't see a good picture in the '67 Chassis Service Manual for a 1967 expansion valve, and I see every part EXCEPT the expansion valve called out in the AIM (UPC C60, Sheet D6). I found several Threads in the archives here referencing a correct replacement now available from the vendors, but it doesn't look like this one. Is this an original, or an old replacement?

[Larry M.]

Re: Is this an original 1967 Expansion Valve for C60 factory Air Conditioning?

Is the original 1967 part number for the expansion valve 5910489? The CC cross-reference lists their current "correct" expansion valve as corresponding to GM # 5910613, and it looks like the same expansion valve the other vendors have, but I think that is a C3 part beginning in the 1968 model year.

I didn't see a good picture in the '67 Chassis Service Manual for a 1967 expansion valve, and I see every part EXCEPT the expansion valve called out in the AIM (UPC C60, Sheet D6). I found several Threads in the archives here referencing a correct replacement now available from the vendors, but it doesn't look like this one. Is this an original, or an old replacement?

Scott:

It appears to be an original from the photo's.

Just get it refurbished, tested, and re-install it in your car.

Larry

[Scott S.]

Re: Is this an original 1967 Expansion Valve for C60 factory Air Conditioning?

Scott:

It appears to be an original from the photo's.

Just get it refurbished, tested, and re-install it in your car.

Larry

Thank you,

Scott

[Terry M.]

Re: Is this an original 1967 Expansion Valve for C60 factory Air Conditioning?

I have seen date codes on some expansion valves -- right below the threaded fitting. Under the band clamp in your photos. You might want to look.

[James W.]

Re: Is this an original 1967 Expansion Valve for C60 factory Air Conditioning?

Is the original 1967 part number for the expansion valve 5910489? The CC cross-reference lists their current "correct" expansion valve as corresponding to GM # 5910613, and it looks like the same expansion valve the other vendors have, but I think that is a C3 part beginning in the 1968 model year.

I didn't see a good picture in the '67 Chassis Service Manual for a 1967 expansion valve, and I see every part EXCEPT the expansion valve called out in the AIM (UPC C60, Sheet D6). I found several Threads in the archives here referencing a correct replacement now available from the vendors, but it doesn't look like this one. Is this an original, or an old replacement?

Scott,

It appears to be the correct one and identical to the one on my '65. I have an NOS/Service Replacement Frigidaire expansion valve in my parts stash and will look to see what the p/n is.

Regards,

James West

[Scott S.]

Re: Is this an original 1967 Expansion Valve for C60 factory Air Conditioning?

I have seen date codes on some expansion valves -- right below the threaded fitting. Under the band clamp in your photos. You might want to look.

I will definitely check!

Thanks Terry,

Scott

[Scott S.]

Re: Is this an original 1967 Expansion Valve for C60 factory Air Conditioning?

Scott,

It appears to be the correct one and identical to the one on my '65. I have an NOS/Service Replacement Frigidaire expansion valve in my parts stash and will look to see what the p/n is.

Regards,

James West

Hi James, that would be great. If you have a camera handy, it would be great for a reference to see what one is supposed to look like when it's new.

Thank you,

Scott

[Scott S.]

Re: Is this an original 1967 Expansion Valve for C60 factory Air Conditioning?

I have seen date codes on some expansion valves -- right below the threaded fitting. Under the band clamp in your photos. You might want to look.

[Terry M.]

Re: Is this an original 1967 Expansion Valve for C60 factory Air Conditioning?

I would guess it is October 1966, but I am guessing.

The ones I have seen are at 90 degrees to that, but maybe the location changed with the decades. Or maybe it means something else. I am used to looking at items 5 to 10 years newer. We need to find someone who worked at Frigidaire or who has the production prints.

[John M.]

Re: Is this an original 1967 Expansion Valve for C60 factory Air Conditioning?

Scott:

It appears to be an original from the photo's.

Just get it refurbished, tested, and re-install it in your car.

Larry

who does the refurbishing for these? I too have a 67 one that looks just like that I was thinking of replacing but if it can be reworked thats awesome.

[Scott S.]

Re: Is this an original 1967 Expansion Valve for C60 factory Air Conditioning?

who does the refurbishing for these? I too have a 67 one that looks just like that I was thinking of replacing but if it can be reworked thats awesome.

Hi John,

Classic Auto Air says they will test, flush-clean internally, and zinc plate your original expansion valve, same as they will do for your original POA valve. If the POA valve doesn't past the test, for an additional fee they will cut it open and repair it if it is an original Frigidaire POA valve (not the later Delco POA valves).

I don't know if having either the expansion valve OR the POA valve zinc-plated is a good idea. Does anyone know whether the POA valve was originally zinc-plated or natural aluminum?

Was the expansion valve zinc-plated?

[Larry M.]

Re: Is this an original 1967 Expansion Valve for C60 factory Air Conditioning?

Hi John,

Classic Auto Air says they will test, flush-clean internally, and zinc plate your original expansion valve, same as they will do for your original POA valve. If the POA valve doesn't past the test, for an additional fee they will cut it open and repair it if it is an original Frigidaire POA valve (not the later Delco POA valves).

I don't know if having either the expansion valve OR the POA valve zinc-plated is a good idea. Does anyone know whether the POA valve was originally zinc-plated or natural aluminum?

Was the expansion valve zinc-plated?

Original POA valve is zinc or cad plated steel.

Larry

[Scott S.]

Re: Is this an original 1967 Expansion Valve for C60 factory Air Conditioning?

Original POA valve is zinc or cad plated steel.

Larry

Thanks Larry. I have found that many of the original cad or zinc plated bolts look brand new (amazingly) underneath the surface oxidation, after using a brass wire-wheel on them, to the point that I don't know if it would improve them any to include them with the bolts that obviously need replating. Same with the male hood pin bolts and a number of other small parts that seem to have been protected by layers of grease and grime. I haven't cleaned the POA valve yet, but I would guess that the exterior has been similarly protected from what I can see.

How does one determine whether a part actually needs replating? Is it a situation where if it looks good, then leave it alone? Or is it generally a good idea to replate items while everything is disassembled and it's easy to do?

The replacement expansion valves look like they're brass colored, but my original expansion valve looks like it was natural steel - was it originally zinc or cad-plated too?