I installed the new carb this morning and went for a test drive. All seemed well until I attempted highway speed and had some serious misfire issues. That's not good. At least the new carb got rid of the miss at partial throttle and it actually has a choke that functions, I said to myself.
I came back home and hooked up my timing light. The initial advance was several degrees beyond what I would use, at maybe ten degrees. So I started investigating whether the centrifugal advance was working (A-O.K) and then checked for vacuum on the disconnected-for-testing vacuum advance. There was no vacuum, so I glanced along the line and saw it was connected to a tee that came off the thermo-valve, which is wrong. Somewhere along the line, and before me, somebody switched/mixed up the vac. line that normally goes to the air cleaner for carb pre-heat and the vac. advance line to the distributor. I reset the initial advance to "That Looks About Right" at around 8 deg. BTDC and connected the lines the way I figured they should be, as there's no underhood sticker and I cannot be bothered to look anything up in a factory service manual or anything. What do you know, it runs like a champ and holds 70+ on the freeway at about 1/2 throttle. And after putting on about 40 miles, the gas gauge barely budged, which is more like it.
But the fan clutch is crap and it's running hotter than it used to. I may have introduced a nasty air bubble in the system when I disconnected the carb's 3/8" lines and let some coolant drain out before removing the old carb, too. Mr. A.D.D. himself, Josh, witnessed me driving down the road and called me while I was out test driving and talked me off the ledge - he may have a clutch for me. Meanwhile, I have to jack the front of the truck up and take the front wheels off to grease the squeaky points anyway, so hopefully I'll chase any air out while it's nose-high.
So then I set to work getting the old crust that used to be carpet out. That's interesting, as in, kind of gross. And I find there are a couple of rust-through holes in the floorboards, almost certainly from specific leaks that have been happening over a long period of time. On the driver's side, it's right about where the driver's right heel sits and on the passenger side it's in front of the left side of the seat next to the tunnel. The rest of the sheet metal looks brand new, yet in need of scraping and cleaning. I removed the center console assemblies, which, like all else in the interior, is falling apart and in need of cleaning.
I got a roller for the vibration dampening material (Noico) so after I clean the metal, I can begin to install that. The interior metal is heavily "corrugated," so I'd like to hear from The Shovel as to how I should go about attaching the 50 mil material I have. I assume it needs to be close to 100% contact, heat formed a little and rolled per instructions (after prepping surface). What about wiring along the floor? Cover it or keep it above the Noico?
I'll be driving the truck tomorrow for some errands, so I'm going to bolt in a Gen 1 Montero seat to see how that works. I think I'll have to re-use part of the truck's seat base so I have a seat belt buckle.
I made the mistake of going to bed early last night and have been up since 2:30 a.m., so sorry if this is a rambling mess. Guess I'll try to get back at things tomorrow, which I've personally declared the start of spring, since it'll be around 80.
John B.