Packard Forum Index » Project Blogs

The gas tank was cleaned and coated by a professional place but I cant help but think it will have to come back out I should not be getting rust in the filter since it was done. it was also 400.00 to get done. Temp gauge moves but I had suspicions it was not correct thats why I had a temp gun with me timing was checked and rechecked many times. distributor mechanical advance also was checked many times. All rad and heater hoses are new nothings bypassed. New water pump. new fan belt thats tight. And tons of other things where done over the last year.All wheel cylinders were replaced and car roles easy. All brake hoses were replaced also I dont think there is a problem with the water distribution tube because when I would check engine temp with the heat gun it was not more than 5 degrees front to back on the head.

You might recheck the distributor vacuum chamber you got from a friend. They work until they don't. A leaking diaphragm can cause all kinds of problems.

If everything else is OK, you probably have a clogged radiator. It might respond to being reverse flushed with air/water. This could be done in the car. I'd want to put some kind of hose and pipe arrangement on the radiator inlet to lead water and debris away from the engine and into a clean bucket, the larger the better. An air/water flush device can be bought and used with a garden hose and air compressor. The combination of air bubbles and water flowing through the radiator from the bottom up can often dislodge loose debris and wash it out. You can also remove the thermostat and reverse-flush the block.

Here's a typical water/compressed air flushing gun. These can be surprising effective at removing accumulated sediment and loosely adherant scale

Attach file:

---

  Flushing gun 002.jpg (247.48 KB)