Re: 51Packard's....51 Packard

Posted by JWL On 2011/7/22 22:07:33

Be very careful with the water pump bolts. They vary in length depending upon location. You can look at the front of the block and see how deep the bolt holes are threaded. Measure this depth. Then measure the water pump thickness for each of the bolt holes. Adding these lengths for each respective bolt hole will tell you what the maximum length each bolt should be. Too long a bolt will damage the block casting and ruin an engine. Be sure to mark each bolt and hole to match. Also, you will want to use copper washers under the bolt heads. Use a Permatex sealer on those bolt threads that go into a water jacket. Here is a photo of the water pump installed on my '47 Custom Clipper. Note the markings on the bolt heads. I hope this helps.

(o{I}o)

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