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Everything posted by PackardV8

  1. Yes. It's a bit complicated, as the front A-arm mounting bolts are not as far apart as the lower, care must be taken with different thickness shims to insure they remain in the same relationship. I had one alignment shop refuse to touch such a project. "You may not know what you're doing and we sure as hell don't know what you're doing." jack vines
  2. The Studebaker kingpin doesn't flex; the caster adjustment at the top does not have enough travel to gain positive caster. When run to the full rearward position, sometimes zero caster is all it can get. By placing shims as described, positive caster is gained and the adjustment can then be returned to the mid-point. jack vines
  3. I've done this for years on several Studebaker suspensions, but have always hesitated to mention it on the various fora, as not everyone understands the forces involved, the geometry involved and there's always the guy, "If some's good, more is better and too much is just right." Adding shims requires longer bolts and a really competent alignment shop. The good news is it allows the original caster adjustment to be returned to the center of travel, removing any stresses. jack vines
  4. Thank Nate Altman for saving the Avanti and blame him for taking out the original rake. Problem with lowering the A II via front spring shortening is the Studebaker kingpin suspension does not have sufficient adjustment range. As the front is lowered, it lessens caster and there's not enough adjustment to get it back. This will make the steering feel more darty and lessens straight line stability. jack vines
  5. I had an R2 customer with a bad block pay $1000 to have eight sleeves installed so his "numbers matching" block sleeved so it could be reused. I had another customer who dragged in a early partial flow block because he didn't want to pay $100 extra to have one sleeve installed his numbers matching full-flow block. jack vines
  6. Has the front suspension been thoroughly greased? Pack a lunch, bring a Shop Manual,and don't get out from under until each zerk show grease going where it is supposed to go. Special attention to the steering gearbox. It requires a special semi-liquid lubricant and they're almost always dry. Again, Shop Manual adjustment of the PS valve at the Pittman arm. Check each of the six or so tie rod ends for play. Check the center pivot bearings for wear. Check wheel bearings for correct play. Has the front suspension alignment been adjusted? By modern standards, the Studebaker front suspension design has insufficient caster to self-center at speed. Crank in all the caster the adjustment will allow. Does this Avanti still have the original steel wheels? What tire width are the new tires? Vibration at speed which comes and goes is almost always a tire/wheel balance issue. First, switch front and rear tires. Does this change anything? jack vines
  7. Not all. IIRC, the R3 heads used the same cope and drag boxes as the regular heads, but with different core patterns for the ports and combustion chamber. Some of the R3 core box patterns were salvaged and IIRC, Lionel Stone borrowed the intake port portion when he was trying to get an aluminum R3 head into production. Part of the problem with that attempt was the cores were for iron and aluminum shrinks 50% more when cooling: Iron 1/8" per foot Aluminum 3/16" per foot jack vines
  8. https://www.motortrend.com/vehicle-genres/studebaker-avanti-history-photos/?wc_mid=4035:22453&wc_rid=4035:999826&_wcsid=2B52DB7F006D00EBEF97E8EE2C6599DD7F16BB03CD80237A jack vines
  9. FWIW, factory AC integrated into the dash was still uncommon in the early '60s. Most of the underdash units were aftermarket, FrigiKing, Rapid-Cool and the like. The York piston was the generic AC compressor first used on the 1939 Packard and still used for most of those units through the 1970s. As mentioned above, unless originality is the goal, there's no good reason to go with York and several good reasons to switch over to a modern rotary compressor. jack vines
  10. Paxton sold so many R3 permutations over the years, it's impossible to know what the customer was told and when. In addition to running out of R3 heads, they also used up all the R3 connecting rods and there were several bitsa versions sold with stock rods. jack vines
  11. You don't specify what needs fixing. If it's just replacing the motor, that's one thing. The bad news is the Avanti window glass is too long and heavy for the motor and mechanism used. The weight soon destroys the motor and when the motor is repaired a couple of times, the forces begin to rack and crack the door inner structure. Then the linkage gets worn and damaged. jack vines
  12. The most common fail is the tachometer. The sending units almost always fail and are difficult to find. The good news is the current production S-W tachs don't require a sending unit and will bolt right in. The easiest fix is to buy a complete set of new production S-Ws and replace all the gauges. jack vines
  13. Since Stewart-Warner was the OEM supplier, the Avanti guages are the most common design ever. While those with the red pointers are not always available, one can always find an S-W gauge which will bolt in. jack vines
  14. When the in-gear carburetor curb idle speed of an automatic transmission is properly adjusted, the additional load when an AC compressor kicks in will often stall the engine. The throttle kicker has an adjustable stop which allows it to be set to maintain the same idle on or off AC. Back when I could not find an Avanti part, I fabricated one from a GM u-pick unit. They're pretty much universal. jack vines
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