1967 AIM UPC References for L71

[Richard M.]

On UPC L71 Sheet A2 in the 1967 AIM,

"V-8 Engine 3 X 2 Non-Illustrated Parts",

there is reference to UPC 6 Engine, namely:

6K-1 Fan & Drive
6M-4 Fuel Pump & Vacuum Pump
6N-2 Accelerator Pedal & Controls
6Y-3 Distributor

At the top of the page it states:
"NOTE: The following are not illustrated in this RPO. See parts list or bill of materials for part numbers." * asterisks state same as RPO L36. The sheets in question for L36 are not in the AIM as well.

There are other sheets for UPC 5, 8, 9 & 11-13 missing also.

Do these documents exist somewhere? Can I get them?

Rich

[Chuck S.]

Re: 1967 AIM UPC References for L71

On UPC L71 Sheet A2 in the 1967 AIM,

"V-8 Engine 3 X 2 Non-Illustrated Parts",

there is reference to UPC 6 Engine, namely:

6K-1 Fan & Drive
6M-4 Fuel Pump & Vacuum Pump
6N-2 Accelerator Pedal & Controls
6Y-3 Distributor

At the top of the page it states:
"NOTE: The following are not illustrated in this RPO. See parts list or bill of materials for part numbers." * asterisks state same as RPO L36. The sheets in question for L36 are not in the AIM as well.

There are other sheets for UPC 5, 8, 9 & 11-13 missing also.

Do these documents exist somewhere? Can I get them?...

Typically, when the RPO sections reference the base car assembly sections in the manual, it means that those configurations for the option are the same as for the base car assembly, but not always in my experience.

In some cases, specific part numbers may be shown on the base assembly sheet for the different option configurations; e.g. intake manifold vacuum fittings. (Oops, See Edit note below) In other cases, the part numbers for different option configurations are shown on a separate "chart". I presume this "chart" was NEVER part of the AIM, and at this point is probably not available in its original form. An example of this is interior color...there are no part numbers for different interior color parts in the AIM; that info came from a "chart". The order copy attached to the car from the beginning probably specified the "chart(s)" to be used.

Another example I noted from a thread yesterday...the fuel tank part numbers for optional engines does not show in the AIM RPO pages to my knowledge. I presume the only way the assembly workers knew the fuel tank part number was different from the base car was from the "chart". Edit: The following is printed on the top of my LT1-A2 sheet: "The following components are not illustrated in this R.P.O. See Parts List or Bill of Materials for part numbers". There is a listing for AIM sheet 8A, Fuel Tank, Mountings & Tank Gauge Unit.

Edit: Reference to intake manifold fittings is incorrect, but I still believe the statement true. When a different intake manifold fitting is required for J50 power brake option, for example, the different fitting configs are shown in RPO section, J50.

[John H.]

Re: 1967 AIM UPC References for L71

On UPC L71 Sheet A2 in the 1967 AIM,

"V-8 Engine 3 X 2 Non-Illustrated Parts",

there is reference to UPC 6 Engine, namely:

6K-1 Fan & Drive
6M-4 Fuel Pump & Vacuum Pump
6N-2 Accelerator Pedal & Controls
6Y-3 Distributor

At the top of the page it states:
"NOTE: The following are not illustrated in this RPO. See parts list or bill of materials for part numbers." * asterisks state same as RPO L36. The sheets in question for L36 are not in the AIM as well.

There are other sheets for UPC 5, 8, 9 & 11-13 missing also.

Do these documents exist somewhere? Can I get them?

Rich

Rich -

The asterisked items ASSEMBLE the same as L-36, but the detail part numbers are different.

None of the sheets are missing, if you have sheets A1 through A17 in your L-36 section.

The Parts List and the Engineering Bill Of Material were internal Engineering documents, and have never been published outside of GM.

The 6K1, 6M4, 6N-2, and 6Y-3 items aren't Assembly Manual Sheets - they're UPC sub-groups in the Parts List and Bill of Material.

[Joe L.]

Re: 1967 AIM UPC References for L71

On UPC L71 Sheet A2 in the 1967 AIM,

"V-8 Engine 3 X 2 Non-Illustrated Parts",

there is reference to UPC 6 Engine, namely:

6K-1 Fan & Drive
6M-4 Fuel Pump & Vacuum Pump
6N-2 Accelerator Pedal & Controls
6Y-3 Distributor

At the top of the page it states:
"NOTE: The following are not illustrated in this RPO. See parts list or bill of materials for part numbers." * asterisks state same as RPO L36. The sheets in question for L36 are not in the AIM as well.

There are other sheets for UPC 5, 8, 9 & 11-13 missing also.

Do these documents exist somewhere? Can I get them?

Rich

Rich------


Get rid of the 1967 and buy a 1973 or later Corvette and you won't have this problem. Starting in 1973 most part numbers for optional items and related systems are shown in the AIM's.

[Richard M.]

Re: 1967 AIM UPC References for L71

...just got back into the computer.....LOL Joe. You got a good chuckle out of me. I dunno, those C3's are too complicated for me.

Ok. Thanks guys. I still am wishing I could see those documents. They existed at some point in time for assembly. I have a full AIM and I have L36 A1 thru A17. I see that the L71 pages reference.....Same as L36 at the "*", and same as production at the "half-moon" symbol.

As an example of where I've been a little confused. Take the fuel line.....from the tank to the fuel pump. The 427 (L36,L68,L71,L88) uses a different line than the 327 right? It reaches more forward at the pump with a 90 deg bend. Where does it show that? UPC 8 sheet B3 item 1 fuel line for the 327 is 3833471.
UPC L71 references UPC 8 Fuel & Exhaust. 8B, Fuel tank mounting & fuel lines, with the half-moon (assemble same as production) but the part number of the fuel line is not in the AIM. It must be in that "other" parts list or BOM.

What is that BB fuel line part number? I looked in my several P&A books, section 3, and even the 3833471 is not listed. Likely not a service part. 1970 is my closest book to 67.

So why do I need to know you ask. Just to understand that there really is a different fuel line for the big block cars. Just to understand where and what the differences are. I don't have years of BB experience so I'd like to learn.

Rich




Rich

[Joe L.]

Re: 1967 AIM UPC References for L71

...just got back into the computer.....LOL Joe. You got a good chuckle out of me. I dunno, those C3's are too complicated for me.

Ok. Thanks guys. I still am wishing I could see those documents. They existed at some point in time for assembly. I have a full AIM and I have L36 A1 thru A17. I see that the L71 pages reference.....Same as L36 at the "*", and same as production at the "half-moon" symbol.

As an example of where I've been a little confused. Take the fuel line.....from the tank to the fuel pump. The 427 (L36,L68,L71,L88) uses a different line than the 327 right? It reaches more forward at the pump with a 90 deg bend. Where does it show that? UPC 8 sheet B3 item 1 fuel line for the 327 is 3833471.
UPC L71 references UPC 8 Fuel & Exhaust. 8B, Fuel tank mounting & fuel lines, with the half-moon (assemble same as production) but the part number of the fuel line is not in the AIM. It must be in that "other" parts list or BOM.

What is that BB fuel line part number? I looked in my several P&A books, section 3, and even the 3833471 is not listed. Likely not a service part. 1970 is my closest book to 67.

So why do I need to know you ask. Just to understand that there really is a different fuel line for the big block cars. Just to understand where and what the differences are. I don't have years of BB experience so I'd like to learn.

Rich




Rich

Rich------


First of all, most fuel lines, and virtually all frame fuel lines, were never available from GM in SERVICE. GM expected that when necessary to replace such lines the lines were to be fabricated from bulk stock which was available in SERVICE. So, you won't find original fabricated fuel lines in any P&A Catalog.

The 1967 AIM does not imply that a different fuel line was used for L-36 than for base engine cars. Note that on UPC L-36, sheet A2 there is no mention of a fuel line being included in the non-illustrated parts. This implies that there was no difference in the fuel lines. For UPC L-71, sheet A2, line 8B it indicates that there might have been a difference for the L-71 fuel line (or, the difference might only have been applicable to other components listed on line 8B). Quite frankly, it does not make sense that there would have been a difference between L-36 and L-71 frame fuel lines since the fuel pumps were the same for both engines and the pumps were also obviously mounted in the exact same location.

I have heard folks CLAIM that there were differences in the big block versus small block frame fuel lines. However, I've never been able to really confirm that. Plus, I can tell you this for sure: for 1973-74, a period in which the AIM would describe any part number difference for fuel lines, there was no difference between the frame fuel supply line for ANY engine option. So, if there didn't need to be and wasn't a difference for 1973-74, why would there have needed to be a difference for prior years?

[Richard M.]

Re: 1967 AIM UPC References for L71

Joe, Yes I figured that you couldn't buy the lines as built. Service mechanics would likely just splice in a new piece.

So this morning before I left for the day I did a little hunting and searching in the archives. Below are a group of threads regarding the different fuel line and the responders that explained it. I can see the difference on this original BB '67 I have here. It has a small block in it now. I cannot say why there weren't differences in the later years lines, but it's obvious that they're different on the '67 here. Here's a photo of it below. I don't have a smallblock line photo, however, they are about 4 inches shorter and bend at a 45 instead of a 90.

Rich

wayne midkiff
https://www.forums.ncrs.org/showthre...+line&uid=4337

mark lovejoy
https://www.forums.ncrs.org/showthre...+line&uid=9096

donald terry
https://www.forums.ncrs.org/showthre...+line&uid=3666

duke williams
https://www.forums.ncrs.org/showthre...+line&uid=7880

mike mccagh
https://www.forums.ncrs.org/showthre...+line&uid=1136