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Discussion Starter · #1 ·
I just bought this car. 69 Mark iii. History of car is abuse. Seems like none of the previous owner had a clue. Right now she has 46384 miles with: a new radiator, new 4300 carb, new exhaust, new shocks, new springs, new tires. Brakes work but to slow down almost 3 tons is pretty slow to stop.

Anyhow, as I just bought this car, had it one day so far and she spewed out a gallon of antifreeze after one mile on the road. Previous owner owned it for 2 years and put about 1500 miles on it and said it never overheated after he had the radiator installed. Can you say liar liar pants on fire? I have not check for collapsed hose, or stuck closed thermostat. Engine has tons of power and revs up great. I check the timing and vacuum is spot on. I have a new clutch fan to install as it came with the car. LOL, I might just remove the entire clutch fan and install a solid 9 blade flex fan that I have sitting on the shelf. There is no fan shroud on this huge behemoth. Previous owner said he drove the car on hot humid days in CT with no problem. It was 39 degrees here in Nebraska today and she puked. So I filled her up, changed the 13 lb cap to a 20 lb. No difference. Just took a few more minutes to puke. Stock gauge shows hot.

Also when first start, she runs on choke high idle until you hit the throttle after a min or two and goes into a fine nice idle. Oil pressure on the stock gauge goes to 1/2 way between L --/--H and then after 5 minutes of running goes to L. Then I hear lifter tick. This is no good. Shut engine down. Then she pukes out radiator fluid.

So, I want to remove the pan and oil pump, clean and possibly replace oil pump. Does anyone know where I can get one? An oil pump gear? Oil pump parts to increase volume/pressure? Are all 460 engine blocks using the same style of pump over the last years? This is a pre-smog engine that requires leaded gas. Right??

I know I can fix the overheat problem with a little more inspections of hoses, thermostat. There is no heater water lines hooked up. Heater hoses are looped together. The heater is mostly all vacuum actuated everything. So I will most likely just install a manual valve and manual flapper door for defroster and heat, once I find out the heater core leaks. LOL

She is a cool old car with some dings, wear and tear with not much maintenance done except for what was mentioned above. Oh, oil leaks at front main seal. Lost about 1/4 cup today after running for 5-10 minutes. Puddle about 1.5 feet circle. Way too much.

I have my maintenance ahead of me. The starter gave up tonight. I check the solenoid, bypassed the relay jumping from battery to starter side of relay and the starter only clicks. So I have just ordered a new starter.

I would appreciate some input on oil pump, oil leaks and overheating. She runs like a raped ape and burns the tires off in positraction. Real strong engine. Maybe she did not like being floored fresh off the trailer. But, I had to see what I had.

thanks, guys and gals.

MJM in Henry, NE
 

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I have had 4 of the MK111's since 1971 and know a little about them.
They will require a fan shroud. I had a fan blade come off on my second one and it destroyed the shroud.
Being in the middle of the Arziona dessert I just removed the shroud temporaly and drove on.
Ten minutes later it was running hot.
I got to Tuscon and found a shroud in a junk yard and drove on to Oklahoma with no overheating.
You can run a standard 429-460 oil pump.
As to the leaks have fun.
On the heater,I don't know if you can do what you want to do.
I know the heater works great in stock condition, I will bet he blew a heater core and didn't want to go to the trouble to replace it. It is a somewhat difficult job and somewhat of a pain.
Just take your time and you can get it done. Be sure if you disconnect any of the 20 vaccum lines under the dash you mark where they go in the controler. The have a colored stripe on each on so be sure you know where they go when you reassembly the unit.
Hope this helps.
Greg
 

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Greg has a lot of good suggestions. It's always good to verify the factory gauges. The heater core likely leaks. Oil viscosity has a bearing on the oil pressure. You should be able to find an oil pump if it's really needed, but that's not an easy job. If the overheating happens at slower speeds, you'll have to have a good fan and shroud. Also be sure to check the action of the thermostat in a pot of water on a stove with a known good thermometer if possible. As far as oil leaks goes, you'll just have to identify and repair them. That leak at the "front main seal" sounds excessive. If that's at the front of the crankshaft, be careful when you buy a replacement seal. There was more than one in the life of the 460.
 

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Discussion Starter · #4 ·
Greg has a lot of good suggestions. It's always good to verify the factory gauges. The heater core likely leaks. Oil viscosity has a bearing on the oil pressure. You should be able to find an oil pump if it's really needed, but that's not an easy job. If the overheating happens at slower speeds, you'll have to have a good fan and shroud. Also be sure to check the action of the thermostat in a pot of water on a stove with a known good thermometer if possible. As far as oil leaks goes, you'll just have to identify and repair them. That leak at the "front main seal" sounds excessive. If that's at the front of the crankshaft, be careful when you buy a replacement seal. There was more than one in the life of the 460.
Thank you gentlemen, and Merry Christmas. I will install the new starter on Monday. Measure the radiator and try to find a 3 to 4 inch shroud and order. If you have any suggestions on what to order I would appreciate it. I see a lot of jeep shrouds for sale in 28x22x3 LxHxW on the cheap, around $60. I see some aluminum kits in 3 inch. for around $100.
 

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Be sure to measure how big your fan blade is. You don't want more then 1 inch clearance from the edge of the blade to the shroud. You also want to measure from the radiator to tne edge of the fan, it shrold come to the front of the blade or an inch past the blade.
If I remember the stock shroud is a 6 or 8 inch distance from the radiator.
I think thr shroud from a 70-71 429 LTD or Mercury Marquise are the same.
Merry Christmas to you and your family.
Greg
 

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Sounds about right for a 50 plus year old car. I have two of them. As others above have said put a shroud on it, if the water pump is the original one and you replace it, all the new ones are a bit longer on the shaft and put the fan closer to the radiator. The 69 Mark III's water pump is slightly different than the 70-71 and is no longer available. You can have yours rebuilt, I'll attach a link to a company that sells the parts, and I believe rebuilds them. The later ones work fine just be aware of this and the belt mis-alignment, if I remember correctly the difference in length of the shaft is @ 3/8" Hayden makes a low profile fan clutch that mitigates this part #2947, you can also install the later year pulley's. Champion makes an aluminum radiator that bolts right in part # CC-6869. As for the front seal now is a good time to replace some things while you are in there. Parts are readily available for these cars and many many parts from Thunderbird's of the same years fit, such as the fuel tank which you might strongly consider replacing. Rockauto is your friend.

These are great cars to hot rod, and they are quirky and can be a bit of hair puller to diagnose when it comes to electrical and vacuum. I chose to eliminate all the vacuum gadgets and go electric with the headlight covers, I don't care about the door locks, as for HVAC I'm eventually going to install classic air or the other brand that I can't remember the name of at the moment. Get the shop manuals, they come in a 5 volume set and can be found readily on the bay or if you wish I have a set for 69 that I don't need since I parted my 69 out. Good luck and you are in the right place, especially for the engine and trans. I already see you on fakebook. There are a couple good groups there specifically for these cars, be careful though, many trolls and people that don't have a clue what they are talking about. Good luck with the car, I look forward to seeing your progress.

Links I mentioned.

Dan
 

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The early short water pumps are available at ClassiqueCars.Com
They have the suction side hose connection that is properly located as well.

* 1968 to 1969 Lincoln and Mark III w/460
fits: 1968, 1969
NEW Waterpump Only - in stock!
(includes 2 gaskets for installation)
$174.95 each


I recently purchased one to use on a client build. Low production, spendy but available.







Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section
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ParklandAutoMachine.com
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(253)-988-6648
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Discussion Starter · #8 ·
Be sure to measure how big your fan blade is. You don't want more then 1 inch clearance from the edge of the blade to the shroud. You also want to measure from the radiator to tne edge of the fan, it shrold come to the front of the blade or an inch past the blade.
If I remember the stock shroud is a 6 or 8 inch distance from the radiator.
I think thr shroud from a 70-71 429 LTD or Mercury Marquise are the same.
Merry Christmas to you and your family.
Greg
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I found this 1972 Torino shroud. Part number is D20E-8146-BC and see the number 8146 in exploded views for a shroud that goes on the Mark III.Do you think this one will work as I have never seen one? Bag Luggage and bags Headgear Personal protective equipment Sports gear
Bag Luggage and bags Headgear Personal protective equipment Sports gear
 

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Discussion Starter · #10 ·
I ordered a fan shroud from O'Reilly's Auto Parts. It arrived today. Cost was $45. I had to trim for A/C clutch but was an easy install. I put on a standard 6 blade flex fan with no clutch. She runs cool. If anyone needs the shroud, O'Reilly's can order you one right from their in house computer and it's in stock. Can you imagine that?
 

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I ordered a fan shroud from O'Reilly's Auto Parts. It arrived today. Cost was $45. I had to trim for A/C clutch but was an easy install. I put on a standard 6 blade flex fan with no clutch. She runs cool. If anyone needs the shroud, O'Reilly's can order you one right from their in house computer and it's in stock. Can you imagine that?


A flex fan costs 30 to 40 hp vs a proper thermostatic viscous clutch with a 7 blade AC fan.









Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
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ParklandAutoMachine.com
R-H-P.biz
"Parkland Performance Auto Machine" Formerly RHP
(253)-988-6648
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Discussion Starter · #12 ·
I still have the original fan with a new clutch that can be installed. But, I found out last night the head gaskets are leaking, oil is leaking from distributor shaft and the heater core leaks. So into the shop she goes for new gaskets, heater core, blower motor. That should cost around $4K. As labor prices are $120 per hour at min here in Wyoming.
 

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my 460 ate the water restrictor holes in the gasket.FIRST kink the heater hose.The hose allows up to 30% by pass of hot water.I also pill the bypass hose to a quarter inch hole.And while you have the tools out,see if you even have a Tstat.All important stuff that does not cost much.Use a 5/8 freeze plug and drill it 1/4 inch.to pill the bypass.Some desert fords had dealer installed pills.
 

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View attachment 93581
I found this 1972 Torino shroud. Part number is D20E-8146-BC and see the number 8146 in exploded views for a shroud that goes on the Mark III.Do you think this one will work as I have never seen one? View attachment 93581 View attachment 93581
8146 just means it’s a fan shroud. D2OE is the prefix meaning it was engineered for a 72 Torino. The BC suffix would determine if it was for a 250, 302, 351, 429 or some combination. It could accidentally work just fine…
 

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I ordered a fan shroud from O'Reilly's Auto Parts. It arrived today. Cost was $45. I had to trim for A/C clutch but was an easy install. I put on a standard 6 blade flex fan with no clutch. She runs cool. If anyone needs the shroud, O'Reilly's can order you one right from their in house computer and it's in stock. Can you imagine that?
What part number or application did you order it under?
 

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Discussion Starter · #17 ·
I ordered it for the 1969 Lincoln Mark III. One day free shipping to my store in Torrington, WY. $46 with tax.
 
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