Nick's 1971 Mark III

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frasern
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Re: Nick's 1971 Mark III

Post by frasern »

I thought Indiana only had 5 months of winter!
Tennessee should give you more nice driving days in the Lincoln, best of luck with the move.
Fraser Noble, Western Canada
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LithiumCobalt
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Re: Nick's 1971 Mark III

Post by LithiumCobalt »

As an update to the heater hose mystery I measured the hard lines and they were actually different sizes oddly enough. Feeding the heater core is the standard run of the mill 5/8" stuff used on just about everything else during that time period. The core output back to the pump is 3/4". Go figure. I know, still doesn't tell us what was used originally if it had markings or not, but at least the next guy will know what sizes are there. Master parts catalog was no help.
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Current: 1971 Mark III, 2012 MKZ AWD, 2016 F-150 Platinum
WANTED: 1969 Continental sedan, 77 Continental Town Car w/opera window delete, 76 Fleetwood Brougham
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LithiumCobalt
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Re: Nick's 1971 Mark III

Post by LithiumCobalt »

Thought I would share kind of a unicorn. While I was going through Earle’s hoard a couple of months ago, I came across a new steering wheel that looked like it matched my car. Once I got home I checked the MPC and pretty sure it is the correct replacement based on the part number. I’ve never seen another NOS one for sale. Since I was going to get the original wheel on my 102k mile car fully restored, I offered Jim a price most seem to charge for this service and he agreed. Here it is still with the plastic wrap on it from 50 years ago. Can’t wait to get it installed.
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Nick
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Current: 1971 Mark III, 2012 MKZ AWD, 2016 F-150 Platinum
WANTED: 1969 Continental sedan, 77 Continental Town Car w/opera window delete, 76 Fleetwood Brougham
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LithiumCobalt
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Re: Nick's 1971 Mark III

Post by LithiumCobalt »

Update time. I have really been scrambling trying to get this car back together. Was remodeling a bathroom, which took a lot of weekend time in the last month or so, but now finally got that to a useable state and can focus on the car. Spent last Saturday at least getting the top end mostly put back together. Looks to be turning out nicely. I'm still not confident I have the valves set up perfectly. Will verify once more when I get the harmonic balancer back on. Almost completely finished with disassembly. I have to change the timing gears and chain and then I can put the timing cover back on and get the front end put back together. Sending out the ol' harmonic balancer (complete with lots of rubber cracks) to the Damper Doctor. The coolant elbow was chewed up so badly that I had Chris Dunn pull me another one in better condition. Decided to set the air cleaner on top to visualize a finished product. Unfortunately I think I will probably run out of time before I can do everything. Really wanted to change out the oil pan and rear main seal, but I don't think that's going to happen this go-around. I just need to get it back together and get it running before we move away from the area.

Used the original style tower clamps and ruined two of them, which is disappointing. Had to order a whole other set to finish up the coolant pipes.
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Nick
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Current: 1971 Mark III, 2012 MKZ AWD, 2016 F-150 Platinum
WANTED: 1969 Continental sedan, 77 Continental Town Car w/opera window delete, 76 Fleetwood Brougham
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Lee
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Re: Nick's 1971 Mark III

Post by Lee »

Looks nice Nick. Will you have to trailer, or are you planning to drive it to your new home next month?
1930 A Coupe
1941 LC Coupe
1968 XR-7 (my great-grandfather’s)
1962 LC Sedan (owned 35 years & driven 100k+ myself)
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LithiumCobalt
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Re: Nick's 1971 Mark III

Post by LithiumCobalt »

Thank you. Unfortunately, it is going to stay put until our house gets built, which could be a year or more away. When the time comes, I would like to think I could drive it eight hours away, but will probably opt to have it shipped. Too much chance of getting road rash, chipped windshields and the like. I need to drive the hell out of it once I get it back together and get some fresh gas in it.

Really banking on being able to be at the Homecoming this year since they are having a special something regarding Earle's passing.
Nick
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Current: 1971 Mark III, 2012 MKZ AWD, 2016 F-150 Platinum
WANTED: 1969 Continental sedan, 77 Continental Town Car w/opera window delete, 76 Fleetwood Brougham
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mge825y
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Re: Nick's 1971 Mark III

Post by mge825y »

"Looking Good Billy-Ray!"
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Dan Szwarc
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Re: Nick's 1971 Mark III

Post by Dan Szwarc »

My 70 merc has one 3/4” and one 5/8” heater line.
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LithiumCobalt
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Re: Nick's 1971 Mark III

Post by LithiumCobalt »

Dan Szwarc wrote: Wed May 03, 2023 10:04 am My 70 merc has one 3/4” and one 5/8” heater line.
So oddball, but I suppose there is probably a reason.
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Current: 1971 Mark III, 2012 MKZ AWD, 2016 F-150 Platinum
WANTED: 1969 Continental sedan, 77 Continental Town Car w/opera window delete, 76 Fleetwood Brougham
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Lee
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Re: Nick's 1971 Mark III

Post by Lee »

Same story for the heater lines on my ‘62. I think it may be typical engineering practice where there is a pressure drop involved (even though the drop across a heater core is probably slight). An extreme example could be the smaller AC line into the evaporator, or the larger return line to the P/S reservoir, or even the fact that your sink drain is larger than the water pressure lines. I didn’t have the ‘62 in a handy place to measure, but the bottom radiator hose on my Cougar is about 1/4” larger than the top, and I’m sure its probably the same story on Lincolns.
1930 A Coupe
1941 LC Coupe
1968 XR-7 (my great-grandfather’s)
1962 LC Sedan (owned 35 years & driven 100k+ myself)
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Dan Szwarc
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Re: Nick's 1971 Mark III

Post by Dan Szwarc »

One reason is idiot-proof assembly. Can't put the 5/8" hose on the 3/4" side. It forces the heater core installer to install it correctly and the hose guy to install the hoses correctly.

Also, pressure drop in the system can be mitigated by reducing the lines as they return to the water pump OR the opposite (small to big) allows there to be some extra fluid for the pump to ingest. Not being a fluid dynamics engineer precludes me from knowing which design has a better benefit.

That said, I tend to think the former is the most likely reason. Too bad all of the engineers from that era are mostly dead.
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Lee
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Re: Nick's 1971 Mark III

Post by Lee »

But if it was only idiot-proofing, then why not make both sides the same diameter? The heater core shouldn’t care what the flow direction is.
1930 A Coupe
1941 LC Coupe
1968 XR-7 (my great-grandfather’s)
1962 LC Sedan (owned 35 years & driven 100k+ myself)
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Dan Szwarc
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Re: Nick's 1971 Mark III

Post by Dan Szwarc »

Never underestimate an idiot.
1Bad55Chevy
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Re: Nick's 1971 Mark III

Post by 1Bad55Chevy »

Looking good.

Is it possible to remove the oil pan with the engine still in the vehicle? I know Looking at my wife's car it dosen't look like you could clear the rotating assembly without picking it up 4-6 inches.
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Lee
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Re: Nick's 1971 Mark III

Post by Lee »

Dan Szwarc wrote: Wed May 03, 2023 6:30 pm Never underestimate an idiot.
I spent much of my career writing and re-writing process instructions, trying to stay one step ahead of the latest generation of idiots, so I have a healthy respect. :roll: By the 2000's, they had become something of a protected group, and the term "idiot proofing" was frowned upon. We had to use terms like poka-yoke, error-proofing and my favorite: "process robustification".
1930 A Coupe
1941 LC Coupe
1968 XR-7 (my great-grandfather’s)
1962 LC Sedan (owned 35 years & driven 100k+ myself)
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