Hello and welcome to Mart's Garage. In this video I investigate the running hot and coolant ejection problem on the 32 sedan. Thanks to all who have been following the big inch flatty build and the entire Pendine series. Mart.
Great as usual! I really appreciate your calm, ****ytical process to diagnosing and solving issues. I have an overheating issue with my 40’s flathead at times, and I need your patience. BTW, what’s the story on the radiator hose clamps? Do you have a mfg. and part number? Thanks! Bill
Good job on finding the problem. Blowing air in the cooling system is never good. You can get test kits to check for combustion gases in the coolant reservoir, although I think your case was pretty obvious. Not very impressed with the Best Gasket, the Fel-Pro is obviously made better. Did you ever figure out why the rear cylinders were running so rich compared to the front. The middle cylinders look like a good air-fuel ratio. Front look lean and rear are rich.
Hi Terry. Thanks for the comments. I am still bug fixing various issues. Once things settle down I might be able to fiddle with things and get the mixtures better. The engine still has less than 500 miles on it so the rings might need more bedding in. That said, my drive it like you stole it bedding in cycle appears to be ok so far.
Genius! So Holmes your saying any time there is a miss fire it affect's the other cylinders via an imbalance of the intakes vacuum pulses. But when the miss fire is aggravated even further than just the lack of spark odd things begin to surface that at the moment makes no sense or leads one to believe further issues exists? Yes my dear Watson, it's that "elementary".
Just as you found a difference in thermostat opening temps, there can be a HUGE difference in the area of openings in thermostats! We take them for granted, but I've seen a lot of variations in supposed 'replacements', many from well-known manufacturers. I always give them the 'kitchen' test and look closely at their full-open area s well as opening temp. Glad you made such good progress!
fwiw…… I recently put a sender unit on each side of my flathead, to two individual gauges. It gives peace of mind. I have always tested the thermostats in the jug before I install them, whether old or new, after having a new one fail, (straight from the box), - 25 odd years ago…….
And . . . thats why I never run thermostats . A, they dont need em B , can ruin a great weekend at any time C , a piece of cardboard in front of ya radiator ,just as good in cold weather D ,ateardown is a h***le and can often show a fu..ed block .Besides , it has 3 feet of exhaust pipe running through the water gallery .
Interesting comments…… When I was 18 I had trouble with one, so for many years threw them out on the old daily drivers that I had. Then when I drove more modern cars, I thought that if the manufacturer put them in, I should leave them there. The majority here on the HAMB seem to believe that you should run them, so I put them back in my flathead, - but I am still not convinced either way and don’t know enough to make an informed decision or recommendation……….
The Jalopy Journal
