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Old 07-28-2020, 11:20 AM   #21
Patrick L.
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Default Re: Compression Test Results

Lets try and get the engine properly before anything else.
The one cylinder is low, hopefully it might come up a bit when the engine has been run awhile.

The compression numbers aren't that bad for an older rebuild or original. Mine has had 45# since I bought in 1975. This engine was rebuilt in 1961. And not all compression gauges are created equal, there can be quite a variant between them.
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Old 07-31-2020, 07:00 PM   #22
31pickup650
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Default Re: Compression Test Results

Alright, update on the situation. I gave it a pretty thorough Seafoam treatment and that seemed to help a little. It wasn't missing driving it in second gear down my little road like it did earlier. I decided to take it for a drive around and it did about as well as it did when I drove it a few years back. I drove it for about 10-15 mins twice today.

Engine braking makes some little "pffts": https://youtu.be/dwF_Dt1UWac

Climbing up hills is slow going and gets smokey. I know I have a few significant exhaust leaks around the manifold and the manifold to muffler clamp area. https://youtu.be/vwEFWsOERJA

I mainly wanted to get the truck going well enough to give my mom a ride for her birthday. I have another engine that I'll look to put in over the winter when I have more time. This one is clearly on its last legs.

Thanks for the help everyone. It was fun to drive it again.
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Old 08-01-2020, 04:34 PM   #23
john in illinois
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Default Re: Compression Test Results

Good to hear. Your mom will love it.


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