Recent work:
Finally got the second rear seatbelt in, on the driver side. This one required more cutting to fit the big wire harness through, as well as my 6awg power cable for auxiliary crap. I ended up covering the red cable with plastic split loom for protection.
Cameo by the Tercel above. Won’t pass emissions (yet) so it lives in the shop. I really haven’t spent any time on it.
The white trim piece below the window changed shape from 82 going into 83. With my truck being an 82, the outline around the seat latch didn’t match with the brown retractor covers.
@joesfj40 sent me some of the later white trim pieces so I got those installed.
I’ve been having two more pertinent issues lately: first a sticky throttle that won’t release if I’m at WOT, and occasional bouts of lean stumbles while cruising down the road.
The sticky throttle got resolved today. Apparently the throttle linkage rod got bent and was rubbing on the return spring at the carb. It wasn’t doing this 6 weeks ago, so it apparently got bent around that time. No clue how it could do this under normal operation in the engine bay. Here’s the rub, literally:
Here’s after bending it back (and then some, just to be safe):
Here shows good clearance with the spring:
With respect to the above photo, I would step on the pedal and the part of the rod that hangs down would rub on the spring and then get caught. How would that part of the rod deform?
I’ve narrowed down the second problem, the lean stumble at cruise, to the primary circuit on the carb. If the truck is idling or if go WOT and open the secondary there’s no stumble. All of this data is from watching my air:fuel gauge. The issue happens almost every day, sometimes all day long and sometimes only one trip, so it’s been pretty random. It only happens at steady throttle held between 25-75%. Fuel pump was new in July and tests good. Float bowl always has enough fuel, I rebuilt the carb last year, fuel tank was new two years ago, and the fuel filter gets changed regularly (and is always pretty clean).
I was thinking it might be a piece of crud in the bow that gets stuck in the primary jet on occasion, but then why wouldn’t it get stuck in the secondary jet- or even ingested through the secondary? I’m thinking the issue is the fuel cut solenoid system. I checked the vacuum switch and it’s good. The FCS passes the click test but that doesn’t mean it operates 100%. The other piece of that system is the emissions computer, so I’m going to send a spare one to
@Engineer8000. Worst case is that mine is fine and I have a known good one to stick on the shelf. These parts aren’t getting easier to find anyway.
Today the lean stumble didn’t act up at all, first time in a while. If it does tomorrow I’m going to follow @HemiAlex procedures and disable it via the coil tach sensor. That’ll show me if my hunch on the FCS system is correct.