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11-15-2019, 03:21 PM | #1 |
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Flathead Friday. New project. Rusty Crusty Flatty. VIDEO.
I bought a flathead that is in rather poor condition. I thought it might make an interesting little project and would be a good subject for a series of videos. Will it run? No chance. It might one day, who knows?
As far as I can tell, it's a circa 1940 "Mercury" motor, probably the truck/military version. It has the bigger bore. I think it has the earlier valve angles I'm not sure yet. If anyone can share any info on the spec please chime in. I'm trying a new video editing software. See what you think. The audio could be better, that will be addressed in any future episodes. You might need to adjust the volume. Hopefully people will find it interesting to see what comes of it. Anyway check the video. https://youtu.be/p92W9svmBBY Mart. |
11-15-2019, 03:34 PM | #2 |
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Re: Flathead Friday. New project. Rusty Crusty Flatty. VIDEO.
Relieved block no less....
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11-15-2019, 04:10 PM | #3 |
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Re: Flathead Friday. New project. Rusty Crusty Flatty. VIDEO.
Since it now is std 239 and has a rebuild tag i suspect it started out as a 221.
Do a pencil test on it... Thought the setting of the caliper was the reading...so it´s a 239...my mistake.. Last edited by flatheadmurre; 11-15-2019 at 04:58 PM. |
11-15-2019, 04:11 PM | #4 |
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Re: Flathead Friday. New project. Rusty Crusty Flatty. VIDEO.
It's in better shape than the two blocks I dragged home, one of mine is totally bare and the other has a crank, cam and valves, mine were given to me by a friend. I told my wife one can never have too many flathead's.
I'll be watching this series as you tear down this motor. Try this link to ID your new project. http://www.vanpeltsales.com/FH_web/f...85to100mid.htm |
11-15-2019, 04:18 PM | #5 |
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Re: Flathead Friday. New project. Rusty Crusty Flatty. VIDEO.
Interesting engine hoist adapter. Also I’ve never seen a cast cam gear before
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11-15-2019, 04:59 PM | #6 |
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Re: Flathead Friday. New project. Rusty Crusty Flatty. VIDEO.
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11-15-2019, 05:43 PM | #7 |
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Re: Flathead Friday. New project. Rusty Crusty Flatty. VIDEO.
You can tell from the round centre water passage that it started life as a 239.
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11-15-2019, 06:58 PM | #8 |
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Re: Flathead Friday. New project. Rusty Crusty Flatty. VIDEO.
did i see the extra oil passage at the rear for the "95%" oil filter?
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11-15-2019, 07:34 PM | #9 |
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Re: Flathead Friday. New project. Rusty Crusty Flatty. VIDEO.
Thanks guys. The lift bracket wasn't my idea, I saw it mentioned somewhere. (Probably here).
The motor does have the extra port, but I can't see any plugs in the passages. Mart. |
11-15-2019, 08:47 PM | #10 |
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Re: Flathead Friday. New project. Rusty Crusty Flatty. VIDEO.
I would guess that it started life as a military block with the oil filter/coolers on them. If so it would not have a plug in the horizonal passage, oil flow was controlled by a fitting pressed into the vertical passage.
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11-15-2019, 09:04 PM | #11 |
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Re: Flathead Friday. New project. Rusty Crusty Flatty. VIDEO.
Definitely military given its unique cast iron timing gear
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11-15-2019, 09:43 PM | #12 |
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Re: Flathead Friday. New project. Rusty Crusty Flatty. VIDEO.
It doesn't have the raised intake manifold surface . . . so now I need to think a bit. How about the pan rails - does it have the "bulges" in the cast iron? Just curious as to what this really is???
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11-16-2019, 12:41 AM | #13 |
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Re: Flathead Friday. New project. Rusty Crusty Flatty. VIDEO.
I have a 99a block that is relieved in the same way. It has been sitting under a tarp at my sisters place for 15 years. Before I left it there I filled the bores and around the valves with marine grease. When I retire in a couple of years I will recover it and tear it down fully.
GB
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11-16-2019, 09:30 AM | #14 |
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Re: Flathead Friday. New project. Rusty Crusty Flatty. VIDEO.
You have my block Mart! Per my avatar, looks like the same right down to the cast iron timing gear. 1939 Canadian military 239 c.i. Mercury. I've attached a pdf file of a spreadsheet I used to determine my blocks' provenance.It may help you confirm what you have. The coolant passage configuration denotes this as what was termed a "Keystone" block which, apparently, was prized by many hot rodders back in the day. Coincidentally, my engine is currently just days away from start-up after god knows how many years! Good luck with this one Mart!
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11-16-2019, 09:46 AM | #15 |
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Re: Flathead Friday. New project. Rusty Crusty Flatty. VIDEO.
Thanks Glen. We should have pretended yours is the "after" shot. that's a pretty useful spreadsheet, having all the pertinent facts all in one place.
Mine does fit the same description of yours, so 39/40 "mercury" but truck spec (relieved) and probably some sort of military history. I can't see a 99 stamp on mine. I'm thinking it is Canadian because of the hole in the front of the block. (As shown in the video) Thanks again. Mart. |
11-16-2019, 12:23 PM | #16 |
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Re: Flathead Friday. New project. Rusty Crusty Flatty. VIDEO.
Mart: I'm pretty sure you'll find the '99' cast into the block just forward of the deck to the right of #1 cylinder. See the attached pic, lower left. In fact, I believe I caught a glimpse of it in your video.
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11-16-2019, 12:55 PM | #17 |
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Re: Flathead Friday. New project. Rusty Crusty Flatty. VIDEO.
Glen, you're absolutely right. i have just been working on it for the last couple of hours and even then I did not notice it. I had to go back outside and have another look. It's there, alright, a 99 cast right in in raised letters.
Thanks for pointing me straight to it. These old motors are always a voyage of discovery. Mart. |
11-16-2019, 03:10 PM | #18 |
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Re: Flathead Friday. New project. Rusty Crusty Flatty. VIDEO.
Mart, I'd say that rusty flathead has as good or better chance of getting unstuck than either of mine do. Its going on 4 years since I've been pouring various mxtures down the carb and spark plug holes of the 49 Mercury truck engine and there is still no sign of movement there. Coming up on two years that I've had the "headless" 53 Merc engine on the stand with acetone+atf in any holes that will hold it I think the only way these will move is by unbolting every fastener on them.
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11-16-2019, 03:12 PM | #19 |
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Re: Flathead Friday. New project. Rusty Crusty Flatty. VIDEO.
Probably also got 99 cast on each centre exhaust passage, visible through bottom centre hole each side....
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11-16-2019, 05:30 PM | #20 | |
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Re: Flathead Friday. New project. Rusty Crusty Flatty. VIDEO.
Quote:
GB
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