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By B-rad - 5 Months Ago
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Is there anything between the flywheel and crank or us it just metal to metal? I know there's a gasket between the flywheel and tranny
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By KULTULZ - 5 Months Ago
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By B-rad - 5 Months Ago
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Thanks. I took the flywheel off the motor 18 months ago and don't remember a gasket between the two. Do you know if it's cork? I bought a engine gasket set and wonder if it's in there. Or I could make one. It says that there are washers on the bolts to the crank. I put all the hardware in a baggie and labeled it. There were just bolts in it, no washers
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By KULTULZ - 5 Months Ago
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It says that there are washers on the bolts to the crank.
Check the PARTS LIST again. Lock washers only on cover to flywheel.
As for the gasket, check with the URL I posted.
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By B-rad - 5 Months Ago
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I see my error on washers. Does anyone know if the flywheel to crank gasket can be made from cork? I have some and they want over $30 for the gasket with shipping. I'd rather make one for basically free. Does thickness matter?
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By B-rad - 5 Months Ago
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I see that there is something numbered 2377 on the diagram but I don't know what it is. Charlie from your link doesn't know either. Trying to confirm what exactly it is
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By KULTULZ - 5 Months Ago
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I see that there is something numbered 2377 on the diagram but I don't know what it is.
I see 6377,which is the gasket being discussed, but no 2377 ...
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By B-rad - 5 Months Ago
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Typo. 6377. Charlie doesn't seem to have that and doesn't know what it's supposed to be. I contacted him. No luck on internet search for part number either.
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By Joe-JDC - 5 Months Ago
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Crankshaft to flywheel/flexplate does not have anything between them. If it did, there would be a vibration/wobble as it deformed with age. Joe-JDC
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By B-rad - 5 Months Ago
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Thx Joe. Looking at the diagram above, it does show, to the far left, 6377-A which is labled as a gasket on the parts list under the diagram. I do not remember taking anything off when I took the flywheel off but the engine went to the rebuilder after so if there was a gasket stuck to the end of the crank I wouldn't have known. I do have a call into him to see what he knows. If that part wasn't on the diagram I would feel better putting it together without anything in between. Your case definitely holds merit about the wobble.
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By B-rad - 5 Months Ago
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However, in these pics, the arrows point to areas on both pieces that seems to show what looks like the appearance of something that was there.
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By Hoosier Hurricane - 5 Months Ago
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That part diagram is unlike any Fordomatic layout I have ever seen. It looks more like a Hydramatic layout. If your Lincoln has a Hydro, then a gasket would be needed because the transmission side of the flywheel is exposed to the fluid and would leak out between the flywheel and crankshaft without a gasket. I would think sealant would be required on the bolt threads also.
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By B-rad - 5 Months Ago
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There is a gasket between the flywheel and tranny. And it is called hydramatic
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By Joe-JDC - 5 Months Ago
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Some Ford flexplates have a metal ring that fits there. It gives more strength to the flexplate mounting area to prevent cracks. The ring fits between the flexplate and the bolts sort of like washers under the bolt heads. I am not familiar with the 317 personally. Just have built dozens of Ford engines over the last 62 years or so. Joe-JDC
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By B-rad - 5 Months Ago
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Just talked to my rebuilder. He said there is nothing between the crank and flywheel. That answers that
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By 55blacktie - 5 Months Ago
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If the diagram is correct for your application, it shows part 6377 between the converter and the crankshaft flange. It's identified as a gasket. Were there two different transmissions used in the 54 Capri? My knowledge of these cars is pretty much zip.
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By KULTULZ - 5 Months Ago
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If your Lincoln has a Hydro, then a gasket would be needed because the
transmission side of the flywheel is exposed to the fluid and would leak out between the flywheel and crankshaft
without a gasket. I would think sealant would be required on the bolt threads also.
What the man said. It is needed. Study how the torus is assembled.
I thought I read where you found one. Can you give the source?
MAINTENANCE MANUAL - https://www.autopaper.com/1954-lincoln-mercury-mechanic-service-training-manual-hydramatic-transmission-2.php
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By B-rad - 5 Months Ago
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It was a 3" o ring. It was from Charlie's transmissions. The link is above. I asked him if a gasket is required and he stated that he's not a mechanic.
If a gasket is required, any idea what material it would be made of?
My mechanic said the same thing someone earlier said, that it would cause a wobble if or when it wore down. He was quite sure that one isn't needed. I don't see where fluid would be near that area to leak out.
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By B-rad - 5 Months Ago
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This is the tranny. It's sealed. 
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By KULTULZ - 5 Months Ago
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It was a 3" o ring. It was from Charlie's transmissions. The link is above. I asked him if a gasket is required and he stated that he's not a mechanic.
Now ain't that some shiat.
Operate an AT PARTS HOUSE and has no idea what is needed for a particular transmission.
The gasket came in the 317 ENGINE OVERHAUL GASKET SET also.
The torus is basically just a convertor and there is fluid inside of it.
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By KULTULZ - 5 Months Ago
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 The photo is showing the torus cover (7910). That bolts directly to the flywheel with a large gasket to contain the fluid (see PARTS ILL above). The fluid contacts the flywheel also (unlike a more understood torque convertor). Without the gasket between the crank flange and flywheel, you will have leakage. One area where the Hydra-Matic differs from contemporary automatic transmissions is the fluid coupling, which is not a torque converter, but a torus. A torque converter uses a stator, which allows it to multiply the engine's torque; a torus does not have this feature. The use of a torus is part of the reason the Hydra-Matic has four speeds; first gear is extra low (3.82:1 on early units, 3.96:1 on later designs) to assist in accelerating from a stop in the absence of additional torque and fourth gear is 1.0:1, not overdrive as found in later four-speed automatics.
SOURCE - https://www.hemmings.com/stories/article/gm-hydra-matic TRY HERE - https://www.fatsco.net/
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By KULTULZ - 5 Months Ago
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See if this helps explain it - https://www.youtube.com/watch?v=GL6s2DwqH_0
The above video is third in a series of five. The fifth video shows assembly and includes the torus assembly (towards end) showing the gasket placement in question.
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