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Old 05-23-2020, 10:25 PM   #1
fred93
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Default Engine oil level question

I changed the oil on a 29 Tudor.

Les Andrews Handbook states that it will take 4-1/2 quarts when changing the oil.

I put in a little over 4 quarts and the dip stick shows about 3/16" over the full mark.

Question is: Do I add another 1/2 quart and remark the dip stick? OR what?
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Old 05-23-2020, 10:35 PM   #2
28tudorsedan
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Default Re: Engine oil level question

Could possibly have some sludge build up in there hence the reason at 4 quarts your already over the mark I did my oil change last week at 4.5q I was right on the full line.
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Old 05-23-2020, 11:58 PM   #3
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Default Re: Engine oil level question

There is some oil that stays in the pan. Some one can explain it better then me.
I usually put in 4 qts on a oil change.
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Old 05-23-2020, 11:58 PM   #4
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Default Re: Engine oil level question

Quote:
Originally Posted by fred93 View Post
I changed the oil on a 29 Tudor.

Les Andrews Handbook states that it will take 4-1/2 quarts when changing the oil.

I put in a little over 4 quarts and the dip stick shows about 3/16" over the full mark.

Question is: Do I add another 1/2 quart and remark the dip stick? OR what?
No, do not remark the dip stick and don't add any more oil. In fact, try to take some oil out.

If you overfill the engine, the rear main seal will usually leak more.
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Old Yesterday, 06:48 AM   #5
shew01
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Default Re: Engine oil level question

Quote:
Originally Posted by 28tudorsedan View Post
Could possibly have some sludge build up in there hence the reason at 4 quarts your already over the mark I did my oil change last week at 4.5q I was right on the full line.

I never thought about sludge potentially taking up space in the oil pan and altering the amount of oil required for a refill. My carís engine was rebuilt before I purchased it; so, Iíve never had the pan off.

Can sludge really build up that much?


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Old Yesterday, 09:39 AM   #6
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Default Re: Engine oil level question

Can sludge really build up that much? Only if you use non-detergent oil !
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Old Yesterday, 02:29 PM   #7
1931 flamingo
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Default Re: Engine oil level question

Over decades............and by not changing at 500-1000 miles. JMO
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Old Yesterday, 05:07 PM   #8
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Default Re: Engine oil level question

If you just run it
It will find it's own level
Just keep an eye on it
It will be fine


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Old Today, 08:26 AM   #9
30 Closed Cab PU
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Default Re: Engine oil level question

Quote:
Originally Posted by shew01 View Post
I never thought about sludge potentially taking up space in the oil pan and altering the amount of oil required for a refill. My car’s engine was rebuilt before I purchased it; so, I’ve never had the pan off.

Can sludge really build up that much?


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Like others above indicate, only if run for a very long time with non detergent oil.



After a 50 year nap, my A had inches of sludge built up in the bottom of the pan, had buildup in the Valve Galley, and had actually blocked the oil pump and oil pump screen. Luckily I caught it before it caused damage to the motor. It is the nastiest black/brown goo like molasses substance ever. Once on your hands or clothes is very difficult to clean off. Since multi-weight oil keeps contamination floating around in the oil, this is the reason some like to add the aftermarket oil filter kit.



Other contributors to sludge.
In the history of oil, manufacturers added Paraffin to motor oil to quiet valves and worn motors. Paraffin is wax. I believe this was in the 50s/60s
Motor coolant temps need to reach 160 degrees or more to allow the oil to reach temps that burn off condensation and other contaminants. Usually for more than 20 minutes. Some of us like to install a thermostat for this reason, and lubrication works better at higher temps, and the thermostat allows the temp to reach operating much quicker. Most wear happens at cold/lower motor temps.



Since your motor was rebuilt, your motor should be clean, especially since after rebuild it most likely has been using detergent oil.
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Old Today, 08:37 AM   #10
30 Closed Cab PU
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Default Re: Engine oil level question

Quote:
Originally Posted by shew01 View Post
I never thought about sludge potentially taking up space in the oil pan and altering the amount of oil required for a refill. My car’s engine was rebuilt before I purchased it; so, I’ve never had the pan off.

Can sludge really build up that much?


Sent from my iPhone using Tapatalk
Like others above indicate, only if run for a very long time with non detergent oil.



After a 50 year nap, my A had inches of sludge built up in the bottom of the pan, had buildup in the Valve Galley, and had actually blocked the oil pump and oil pump screen. Luckily I caught it before it caused damage to the motor. It is the nastiest black/brown goo like molasses substance ever. Once on your hands or clothes is very difficult to clean off. Since multi-weight oil keeps contamination floating around in the oil, this is the reason some like to add the aftermarket oil filter kit.



Other contributors to sludge.
In the history of oil, manufacturers added Paraffin to motor oil to quiet valves and worn motors. Paraffin is wax. I believe this was in the 50s/60s
Motor coolant temps need to reach 160 degrees or more to allow the oil to reach temps that burn off condensation and other contaminants. Usually for more than 20 minutes. Some of us like to install a thermostat for this reason, and lubrication works better at higher temps, and the thermostat allows the temp to reach operating much quicker. Most wear happens at cold/lower motor temps.



Since your motor was rebuilt, your motor should be clean, especially since after rebuild it most likely has been using detergent oil.
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Old Today, 11:57 AM   #11
fred93
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Default Re: Engine oil level question

Quote:
Originally Posted by 28tudorsedan View Post
Could possibly have some sludge build up in there hence the reason at 4 quarts your already over the mark I did my oil change last week at 4.5q I was right on the full line.
New engine with zero miles--sludge is not an issue.
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Old Today, 12:08 PM   #12
fred93
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Default Re: Engine oil level question

Quote:
Originally Posted by Jim/GA View Post
No, do not remark the dip stick and don't add any more oil. In fact, try to take some oil out.

If you overfill the engine, the rear main seal will usually leak more.
************************************************** **********
So how much oil goes in after draining out old oil?


Andrews says 4-1/2 quarts.
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File Type: jpg LES ANDREWS.jpg (45.5 KB, 1 views)
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