Originally Posted by Otto Skorzeny
... I'm installing a newly rebuilt inline six in Little Red next weekend but I'm going to fill it with water. If there are any leaks or other problems, I won't have wasted $12/gal coolant.

Followed your idea and good thing. After adding the water, I noticed a leak from the lower heater core inlet. I snugged up the clamp, but had to add a second clamp. Those tubes on the heater core don't have any ribs - I think that would have helped to seal it. I added the extra clamps on the top and bottom to be safe. Check it again 20 minutes later and no runs, no drips and no more error.
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Last edited by UtahYork; 03/18/2026 12:47 AM.
~ John in Utah
1946 1/2Ton w/4-speed manual transmission w/1960 235 engine
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