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EFV-8 Club Forum / General Ford Discussion / What exactly do I have here??

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wilsonsk

06-06-2022 @ 11:07 AM

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I bought a 1941 Tudor DeLuxe from my daughter. I had assumed it was stock but as I am going through and picking away at things, I realize I have a mix of things, here is what I think I know:

Car - 1941 Tudor Sedan
Heads- 8BA
Side mount distributor
Water pumps - 59? with flat motor mounts
Block - 8BA (bolt on bell housing)

Is that what it looks like I have?

I have odd heating-up issues, car takes a long time to get warm, the drivers side will go up to 220 then drop done to 190, I have had the passenger side run at 190 for 20 minutes and then heat up to 220 briefly, is this trapped air? I have only run it a couple of times because I want to sort out this heating issue. It has an aftermarket aluminum radiator and a 7 lb cap, I added a burp tank which seems to be functioning but still seems like I am burping air into it, I bought head gaskets because I'm sure it could use them and that may be my problem, I bought them from Dennis Carpenter, I ordered based on my assumption that the motor was original to the car (wrong), the gaskets I have cannot be used on this motor, correct?

My previous experience with flathead fords was our 51 3/4 ton we had on the farm until I was 8 or so, I knew it had a flathead 8 and it had a 3 speed, and I drove it on the farm.

carcrazy

06-06-2022 @ 12:50 PM

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Judging by the distributor location, 8BA heads and removable bellhousing; you have a third generation Ford Flathead V-8 engine (1949 or newer pass. car or 1948 or newer truck). Those new head gaskets you have will not work on your engine.

Do you currently have thermostats in the engine?

If you have mechanical temperature gauges or a laser thermometer, it is normal for the coolant temperatures in the cylinder heads to instantaneously go to relatively high temperatures of 200 degrees F or more until the thermostats open up.

wilsonsk

06-06-2022 @ 1:38 PM

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"Judging by the distributor location, 8BA heads and removable bellhousing; you have a third generation Ford Flathead V-8 engine (1949 or newer pass. car or 1948 or newer truck). Those new head gaskets you have will not work on your engine."

Thanks, that's what I was starting to think but I'm taking in a lot of new info on old stuff right now, just want to confirm

"Do you currently have thermostats in the engine?"

I don't have thermostats in there now, I checked them and they looked as old as the engine, I pulled them out and am currently
running without them. I researched the web and found everyone pretty split on running without thermostats being OK or not
OK, I pulled them to be sure one wasn't hanging up. I'll test them tonight. It does kind of behave like thermostats opening and closing, what are the odds of thermostats in the hoses too?? I can check.

"If you have mechanical temperature gauges or a laser thermometer, it is normal for the coolant temperatures in the cylinder heads to instantaneously go to relatively high temperatures of 200 degrees F or more until the thermostats open up."

I put in aftermarket gauges. 1 in each head. I have an IR temp gun, what should I be seeing for temps at different points on teh heads and motor normally? I can check that. It seems to push water into the burp tank and pull it back in to the system when it cools, I have shut it off when it hit 220, it was pushing water and some bubbles with the engine off (maybe 1 bubble the size of a pea per second) but not boiling), started it back up (started just fine) and the temp dropped to 190 again, the passenger side had been at 190 the whole time, then in the few blocks home it headed up to 220 then back down. It sat for 10 years with the coolant drained, could there be rust and cr*p floating around in there? I can flush it.

This message was edited by wilsonsk on 6-6-22 @ 1:55 PM

carcrazy

06-06-2022 @ 1:56 PM

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Yes, I highly recommend back flushing the cooling system. You can use a kit for that purpose sold by Prestone. This kit will allow you to connect your garden hose to one of your heater hoses. Simply follow the instructions included with the kit.

If your vehicle still runs hot after you have back flushed your cooling system, you might want to take the radiator to a shop to have it professionally cleaned.

Once you get the radiator back from the shop, it would be good to install all new radiator and heater hoses along with new thermostats. I prefer to use the 160 degree F units as I have never had a problem with Flatheads running too cold!

wilsonsk

06-06-2022 @ 2:52 PM

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I'll pick up stuff to start flushing tomorrow. Should I be soaking with vinegar or CLR or anything like that?

carcrazy

06-06-2022 @ 5:02 PM

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I don't know about using vinegar in the cooling system. It is a mild acid so I would be careful about using it in a cooling system with an aluminum radiator. If you do use it, be sure to neutralize it and totally flush it out after just a short period of time, about 15 minutes.

wilsonsk

06-06-2022 @ 5:20 PM

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I was thinking just fill the block and heads with the vinegar, then flush, keep the radiator out of it. There is a shop in town I think, I may just run the radiator down there for a cleaning while I’m messing with the block,

wilsonsk

06-07-2022 @ 6:43 AM

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I drained the radiator and the coolant looked nice and clean, then I pulled the lower hoses And there was quite a bit of rust laying in those. After it drained down I looked in the top tank of the radiator and there is a layer of rusty sludge with what looks like bits of paper and grass. I believe I’m dealing with a mouse nest.

carcrazy

06-07-2022 @ 12:41 PM

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Having rodents in the car is definitely bad news! I once bought a 17 year old car that had been stored in a barn. Squirrels had gotten into the interior and under-hood area. Aside from using the car as their restroom, they chewed up the insulation on many of the wires in the harnesses and removed the padding out of the vinyl covered seats. As a bonus they left many acorn sh*lls under the instrument panel.

If your car has been exposed to mice, you might want to check your wires to see if the insulation has been compromised. Also check to see if they have gotten into the air cleaner or the exhaust system. Hopefully they have not gotten into the engine to make a nest under the intake manifold!

wilsonsk

06-07-2022 @ 3:53 PM

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On one hand I’m glad I found something, I hate it when you have problems and start picking away at things and never know what was wrong. I have looked at most of the wiring, most of it is original, not in great shape but I don’t see any rodent damage there. I haven’t pulled the seats out and looked at the bottoms but they look ok from the top.

I’m fairly green on flatheads, but can mice get under the intake?

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