Oldsmobile Technical Service Bulletins pre-80

[carmangary]

All data only goes back to 80. My car is a 79. Can you believe my luck? LOL.

Are there any technical service bulletins available for 79 and older Oldsmobiles? They have to be out there somewhere! But where?

 

[Oldsmoletick]

What exactly are you looking for, I have a FSM for both a 79 & 80 Cutlass, not much diffeerence there.

 

[carmangary]

I was mainly looking to see if there were any TSBs for the emissions system. The 3 port ported vacuum switch is no longer available so I am thinking that Oldsmobile probably decided laster in life to change that part to something else.

Do you have a vacuum diagram for the 4.3L 260 2BBL on the 1980 Cutlass Cruiser? I am curious to see how it compares to the 1979 version. I can still get the parts for the 1980 engine so maybe I can just convert my engine over to the 1980 system.

Thanks,
Gary

 

[Oldsmoletick]

I'll look into that for you tonight (have to dig the books out), they should provide some decent detail. I'll see if i can some how post them up for you.

 

[Oldsmoletick]

Here's a view of the different combonations for the 79 & 80 260.
click pic for larger views.
1979


1980



Hope that may help...

 

[carmangary]

Those picture should be very helpful. Thank you for taking the time to take pictures of them and for posting them. I am not sure which picture is for what, though. I really only need the non-California non-High Altitude with Automatic Transmission version. Are you about to tell which one that is?

Thanks,
Gary

 

[Oldsmoletick]

That is the one for the 79 low alt, non cali.
All the 1980 ones are non cali, low alt. the upper lh corner letter code OA is for the cutlass wagon.

 

[carmangary]

Thanks. I have the 79 manual so I was good with that one but I had not seen the 80 diagrams. It looks like they made it a bit more complicated. I don't have an air pump, whatever that is. I think I will probably just use a 120 degree 3 port ported vac switch and a check valve or just bypass it altogether.