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Dave39MD

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Posts posted by Dave39MD

  1. I checked my car and the switch is actually mounted on the vertical part of the frame under the sill, not on the sill. It attaches with two 1/4 inch bolts. Same spot near the left rear corner of the floorboard opening so the operation of the brake cross shaft moves the switch. So much for going by memory!

     

    Dave

  2. Found the root cause of the leak, the last guy damaged the gasket putting it together. I re-read the advice since I am getting ready to put it back together.

     

    The advice on using Olson's gaskets was excellent. They are very knowledgeable and seem to really want to help their customers.

     

    Dave

     

     

    exh manifold gasket leaking.jpg

    • Like 1
  3. I used a core plug (freeze plug) to block off the tube to the heat riser,. The tubes I replaced inside the riser were replaced with McMaster-Carr stainless tubing. It was  slightly too large but the machine shop was not concerned and did a great job in making the swap. No cracks so far, the old heat riser with the factory tubes was cracked extensively so I am not sure on the stainless being a problem. There were several discussions on this topic  on this forum that were helpful.

     

    Dave

     

    • Like 1
  4. Bob, I did plug the heat riser tube when I replaced the riser and tubes inside. It made a real difference in the way it runs in this hot weather. It is such a wonderful car to drive I may be running it too much!

     

    Hugh, I like the brass nut idea I am not sure on the stainless studs. One stud (the one with a flat washer) has been replaced since it looks like 7/16. The others are 3/8.

    It is important to me to have it run good and be dependable but it is an unrestored original 45,000 mile car so I hate to put a lot of shiny new parts on the engine.

     

    Thanks again

     

    Dave

     

     

  5. I have been driving my 31 a good bit and have managed to develop an exhaust leak. It appears to be coming from one exhaust port gasket- no cracks that I can see. As fragile as these manifolds are I thought I better get some advise here before doing something stupid. Two thoughts come to mind; 1) can I try tightening the nuts holding on the manifold without getting into trouble? If that doesn't work. can the manifolds be loosened and pulled away enough to replace the gasket without removing the exhaust pipe and heat riser?

     

    Any other recommendations are welcome, thanks

     

    Dave

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