7 qt pan??doing oil change

Stang8URMPRT · Apr 10, 2005

diddylx50 said:
so wait...5 quarts of oil with a Canton 7qt pan? It takes 7 and 3/4 quarts for the oil to read in the proper range on my car

Listen to Mike.. He has all the answer to your Ford questions! (considering he owns a Volvo)

Michael Yount · Apr 11, 2005

stang8 - it's spelled 'responses'.....nice, short sentence just for you.

bluevenom - High volume pump should be used if you're running looser bearing clearances (some racing applications) - when the bearing clearances are larger, more volume is needed in order to move more oil while maintaining oil pressure. If you're not running bigger clearances, all a high volume pump does is consume more HP to move a higher volume of oil around the pump bypass. If the drainback on the heads is sufficient (newer heads are), and your pickup height is set properly with the new pan - 5 qts., 6 qts., 7 qts. - shouldn't make a difference regardless of the pump choice.

Oil capacity isn't gonna make a big difference in oil temp ultimately - especially in street cars and road racers. It'll just take a bit longer to heat the extra oil up. If you're concerned about oil temps an oil cooler is what's needed - not more capacity/volume in the pan.

As for windage trays/scrapers and baffles - the windage trays are to help keep oil off the crank; the baffles are there to keep it around the pickup especially in high g-load manuvering. Seems to be a matter of preference -- and seems like a lot of folks prefer the belts and suspenders approach - windage trays and a deeper sump to move the oil away from the crank. If you really want to get serious about minimizing windage losses AND keep a solid supply of oil pressure to the motor you'll find many road racing set ups run dry sumps with external pumps. This has an added benefit of allowing the engine to be set lower in the chassis for a lower cg.

89MustangGX · Apr 11, 2005

Stang8URMPRT said:
Ford recommends 5 quarts in a 5.0, and 6.0 quarts in a 4.6 and 5.4... V10... I have never, ever EVER seen one be off as long as the dip stick is not bend or modified any way. Another mistake you might be making is not letting all the oil out of the pan before you put the drain plug back in, this when adding 5 quarts, you can be well over the full mark. Every time I had 5 quarts to my 5.0, it reads in the middle, where it should be. Every time I've ever done an oil change on any Ford car with an unmodified dip stick, it has ALWAYS read correctly. Now you guys can take hear say from the internet, or can take the advise from someone that does it every day. Which do you choose?

Just want to point out that my 5.0 takes 6 quarts, and it says so right in the owner's manual ... for my F150.

Not all oil pans are created equal - even if the engines are, and that's why it's important to know these things.

Stang8URMPRT · Apr 11, 2005

89MustangGX said:
Just want to point out that my 5.0 takes 6 quarts, and it says so right in the owner's manual ... for my F150.

Not all oil pans are created equal - even if the engines are, and that's why it's important to know these things.

I was referring to a Mustang, not an F-150.

89MustangGX · Apr 11, 2005

Stang8URMPRT said:
Ford recommends 5 quarts in a 5.0, and 6.0 quarts in a 4.6 and 5.4... V10...

Stang8URMPRT said:
I was referring to a Mustang, not an F-150.

Ok. Thanks for clearing that up.

Stang8URMPRT · Apr 11, 2005

Please. Go back to your Haynes manuals and your back yard shed to work on your car

Michael Yount · Apr 12, 2005

stang8 - you only make yourself look ignorant and entertain us each time you post. Probably be best if you didn't respond in this thread anymore, but I suspect you won't be able to resist the bait.

Stang8URMPRT · Apr 12, 2005

If you don't want me to post in this thread, then why "bait" me?

vristang · Apr 12, 2005

I called Canton a while back with the same question, and received a very uncertain answer of 6qt + 1 for the filter.

Since I have had PCV, blowby, rocker oil spashing into the intake due to removed baffles, and other gasket blow out issues, could overfilling the oil pan have caused some of these problems?
If you guys are running 5-6qt then I would be 1-2qt overfilled.
I calibrated my dipstick when the motor was still being built by filling the pan with 6qt of oil. Starting to think that may have been a little high.

Michael Yount · Apr 12, 2005

vristang - as long as you pickup is on the bottom (3/8" clear) why not try running only 5 qts. the next change and see how it impacts the oil/pcv issue?

vristang · Apr 12, 2005

Michael Yount said:
vristang - as long as you pickup is on the bottom (3/8" clear) why not try running only 5 qts. the next change and see how it impacts the oil/pcv issue?

Too late the motor is already coming out. There are some other changes I wanted to make anyway. I know I did position the P/U properly because I checked it like 3 times. Once I get the motor stripped down, I think I will put the pan on a flat bench and pour in 5qt of water, just to see how well the pick up is covered. If all looks well then I will definitely be running less oil!
Thanks for the suggestion!
After reading this I think I will pitch the HV pump too.
Damn good thread, but I don't remember the original question. ADD sucks!

vristang · Apr 12, 2005

Stang8URMPRT said:
If it's a 7 quart oil pan, the pan takes 7 quarts, and the oil filter will take about 1/2 a quart. So just put 7 1/2 in the motor, and you're good. If in doubt, just go by the damn dip stick. I know people are like "Don't trust the dipstick", but they're engineered to be right. Ford recommends their dip sticks to read right in the middle of the "full" and "add" lines, which is 5 quarts for a 5.0 with the STOCK oil pan.

Straight from Canton "The 7qt. pan holds 6qt., the filter puts the system at 7". Also, I think you over estimate the engineering that goes into a dipstick. Most likely this job is given to a rookie engineer with minimal resources. Due to sloppy manufacturing tolerances (in an effort to decrease production costs) Ford will recommend the middle of the range. This just minimizes the chance of the large tolerances in dipstick (and dipstick tube length) causing major problems.
Nothing personal, I just think you need to be more realistic about the resources Ford would expend on something that doesn't increase the sale price.

Michael Yount · Apr 12, 2005

"I think you over estimate the engineering that goes into a dipstick..." Very well put.

89MustangGX · Apr 12, 2005

I did go to Canton's website and now see how the oil pans are listed. They are listed as 7 quart system capacity...which would make them 6 quarts as mentioned above. Learn something new everyday!

EDIT:

Direct quote from Canton website:

System capacities refer to pan and a 1 quart filter. Canton oil pans are designed so the capacities listed will put the oil level just below the windage tray. In most cases this is below the stock level and will keep the oil further away from the rotating assembly. We recommend the pan be filled only with the amount of oil called out, and then the dip stick or oil level check be marked accordingly.

quikrnu · Apr 19, 2005

What are my chances of doing damage in my motor if I only run 5qts in 7qt Moroso pan with the proper pickup tube, HV oil pump and windage tray?

88_GT_5_oh · Apr 19, 2005

good thread......posting just to subscribe

Guyfoxbody · Apr 20, 2005

Michael Yount said:
"I think you over estimate the engineering that goes into a dipstick..." Very well put.

Very True! I put 5 qts. in my car and the dip read about a a qt and a 1/2 over full! I drained some until the dip read it was fine. I don't think these dipsticks are very accurate.

stang1986GT · Apr 20, 2005

89MustangGX said:
Just want to point out that my 5.0 takes 6 quarts, and it says so right in the owner's manual ... for my F150.

Not all oil pans are created equal - even if the engines are, and that's why it's important to know these things.

Well, my 5.0 takes about 12 quarts of oil between oil changes...how ya like that one?

Guyfoxbody · Apr 20, 2005

stang1986GT said:
Well, my 5.0 takes about 12 quarts of oil between oil changes...how ya like that one?

You must have the older Holley Heads!

ponyboy19 · Apr 20, 2005

I don't have a dipstick on my canton so personaly I let it drain completely, then add 7qts and call it a day.

7 qt pan??doing oil change

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