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About Hans3

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    CLT, NC

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  1. '65 it is, and fairly certain that 1/2 is the correct diameter. Many online vendors quote a 9/16-18 nut, but that's definitely too large.
  2. Is the thread size of the 1st-gen steering pump (pulley) shaft 1/2-20 or another 1/2 pitch size? I want to clean my shaft threads and don't want to choose the wrong die size; thanks!
  3. My 3-2 kickdown action "flutters," or engages and disengages rapidly, when actuated close to the MPH limit for this downshift. Is this an issue with the linkage switch needing adjustment or the kickdown solenoid within the SP400? I'm used to other GM and foreign automatics either allowing the highway speed kickdown or not allowing it (no kickdown action), hence my concern regarding this flutter-type behavior.
  4. Thanks. I've often installed oil-resistant (yellow) thread tape to the nipples to make vacuum bleeding more efficient; it prevents the MitiVac from sucking air past the threads.
  5. Did the bleeders ever come with dust caps or were they always exposed?
  6. An exceptional convention to attend; thanks for all the great photos.
  7. These debates rarely consider the advancement of much cleaner burning ICE fuels.
  8. Is there a current source for the smaller sized engine harness clips as shown? Cars sells an XL-sized version but the retaining prongs are too large for the fender holes.
  9. Seeking a Delco battery topper with the yellow "Delco" wording on each cap; thanks much!
  10. Thanks--on mine they appear to be #12 sheetmetal screws, and as you said two long ones with spacers and two short ones. But it's odd to use such fasteners with the bumper's captive (square) nuts. I also had difficulty getting my rear bumper replated. The sheer size of the bumper posed challenges for the plating shop in terms of chrome coverage. I had hoped to get the areas around the taillights to have full (quality) chrome coverage, even though they didn't necessarily leave the factory this way.
  11. Anyone know the size and spec length for the taillight assy to bumper bolts on a '65? There are 4 per lamp assy, but I don't know if they're all the same length. I had some spacers in the parts bag so I'm thinking these bolts are at least 1" long. Thanks much
  12. A DIY mechanic for years but a newbie to the GM400 transmission; thought this was the best forum for this question: -- Before transmission is fully warmed I'll be at a traffic light (in drive) and when I hit the gas the trans will pretend like it's in neutral for ~2 sec and only then slam into drive (with rpms a little above idle). I'm then able to drive normally. I never touch the shift lever and it will engage any gear at either a standstill or while underway; no upshift or downshift issues. Issue goes away when fully warm. Correct fluid level--planning to test modulator for fluid leakage and vacuum input / leaks tonight. Is this symptomatic of any common problem? Thanks much ...
  13. For my own education why wouldn't adjustment of the idle air flow or mixture screws not compensate for this issue?