Messages

1

Originality / Re: Correct Oil fitting L35

« on: March 13, 2023, 05:28:05 PM »

Top picture is correct for 444052 elbow used on 67 68 69 2 bolt BB's. When the AIM RPO L35/U17 instructions where drawn they added the bushing 444026 / 444030 U17 which is not used on 2 bolt blocks but 444030 is used on 4 bolt blocks.
2 bolt BB blocks are drilled for 3/8" NPT and 444052 elbow screws directly into it with no adaptor ( bushing).
4 bolt BB blocks are drilled for 3/4" NPT and 444030 reducer bushing (3/4" to 1/2")  is needed but 444052 elbow is not used.
Bob

2

Restoration / Re: Needed: Photos of GM 3913415 Throttle return spring 1967 L78

« on: December 26, 2022, 09:13:29 PM »

1968 is green.
Bob

3

Restoration / Re: 67 Firewall Circuit Breaker C06 A1 #9

« on: October 17, 2022, 01:23:17 AM »

Looks like the pilot hole increases with the thickness of the metal.
Do all #8-32 hex screws have the same diameter at the base of the threads? If not then that could explain the different pilot hole sizes in the AIM.
Bob

4

General Discussion / Re: Checking on our Mike S team member

« on: September 19, 2022, 11:18:29 PM »

Any info on Mike S ??
Bob

5

Restoration / Re: 67 Firewall Circuit Breaker C06 A1 #9

« on: September 13, 2022, 05:32:13 PM »

Jim,
Thanks for the reply.
I wonder why the pilot hole of .125 is specified in AIM for a #8-18 when .136 is now specified?
Is AMK # B-12048 now the accepted replacement for 3858195 as AMK does not offer a direct part # replacement?
Bob

6

Restoration / 67 Firewall Circuit Breaker C06 A1 #9

« on: September 11, 2022, 11:24:15 PM »

What size and finish are the screws #9 (3858195) for the firewall circuit breaker?
Bob

7

Originality / Re: 67 L78 BB Oil Line Fittings ( With gauges)

« on: August 30, 2022, 03:46:33 AM »

No one ?
Bob

My L78 4k built 05b has the grommet. Its a 17k mile fairly original unrestored car with factory gauges. It a LOS built car .

john302,
What color are your oil lines?
Bob

8

Originality / Re: 67 L78 BB Oil Line Fittings ( With gauges)

« on: July 27, 2022, 03:06:17 PM »

My L78 4k built 05b has the grommet. Its a 17k mile fairly original unrestored car with factory gauges. It a LOS built car .

john302,
What color are your oil lines?
Bob

9

Originality / Re: 67 L78 BB Oil Line Fittings ( With gauges)

« on: July 22, 2022, 11:42:01 AM »

Can anyone with a 2nd version ( 67- 06,07 month) original L78 with gauges and grommet on firewall confirm what color oil lines they have? L35 would have the same oil lines.
Bob

No one with an original 67 06-07 BB w/gauges?
Bob

10

Originality / Re: 67 L78 BB Oil Line Fittings ( With gauges)

« on: July 18, 2022, 01:02:05 AM »

Can anyone with a 2nd version ( 67- 06,07 month) original L78 with gauges and grommet on firewall confirm what color oil lines they have? L35 would have the same oil lines.
Bob

11

Originality / Re: 67 L78 BB Oil Line Fittings ( With gauges)

« on: July 15, 2022, 05:01:27 PM »

Jose,
Thanks for the pictures.
Copper line is not original, should be white or black 1/8" nylon with cone type ferrules and sleeve, but at this point I do not know which one is correct for early 67 L78 with firewall fitting. 
Mike S has an 325 HP 05B with firewall fitting and it has white lines and fittings which I believe to be correct for early version oil lines.
No correct information on early L78 version system just bits and pieces.
If your copper line has barrel ferrule and you use it with original gauge and adaptor you will have and oil leak.
Bob 

12

Originality / Re: 67 L78 BB Oil Line Fittings ( With gauges)

« on: July 12, 2022, 11:22:25 PM »

Ed,
Should have remembered that about the 67 L78. Having a problem trying to understand what parts where used in the early and late 67 oil line L78's and L35's.
View C in 67 AIM A4 shows L35 but there is no bushing used on 2 bolt main blocks. A grommet is used at the firewall so this has to a late version of the oil lines.
1st version used clear oil lines. When did they start using black oil lines?
The grommet (2nd version) was added in 3-10-67 to 67 AIM but when did it go into production?
Jose,
A picture showing the fittings at the oil filter pad and gauge fitting would be great.
Bob

13

Originality / Re: 67 L78 BB Oil Line Fittings ( With gauges)

« on: July 11, 2022, 08:43:53 PM »

Does anyone have an 01 02 1967 L78 with console gauges , RPO U17, that has the original oil lines and fittings??
Bob

14

Originality / Re: 4 Bolt Main Brass Oil Line Fitting $80

« on: July 10, 2022, 11:07:36 PM »

Also inside threads are 1/2"-14 NPT not 3/8"?.

15

Originality / Re: 4 Bolt Main Brass Oil Line Fitting $80

« on: July 10, 2022, 10:52:53 PM »

I believe the 1st Gen bushings are steel not brass.
Bob