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Re: Does "must" really mean MUST? Ref: 1970 383HP [Re: 69/70 Plymies] #1690049
10/27/14 04:36 PM
10/27/14 04:36 PM
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Bend,OR USA
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Five in the pan and one in the filter, 6 total on oil and filter changes I put all of the 6th quart I can get into the oil filter before installing it. I do fill it 5 or 6 times, letting it sit to level off, until it won't take anymore


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Does "must" really mean MUST? Ref: 1970 383HP [Re: Cab_Burge] #1690050
10/27/14 05:13 PM
10/27/14 05:13 PM
Joined: Jan 2003
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U.S.S.A.
JohnRR Offline
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Quote:

Five in the pan and one in the filter, 6 total on oil and filter changes I put all of the 6th quart I can get into the oil filter before installing it. I do fill it 5 or 6 times, letting it sit to level off, until it won't take anymore




What pan are you talking about Cab ?

Re: Does "must" really mean MUST? Ref: 1970 383HP [Re: JohnRR] #1690051
10/27/14 09:37 PM
10/27/14 09:37 PM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert Offline
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The sucking air sound is the pickup being uncovered not the pickup threads having no sealer cuz the extra qt silenced it. You would need that extra qt to stop that & if that amt of oil is letting it happen now it'd be worse when running/shaking/vibrating (so you wouldn't want any less than that amount). Extra oil is more windage but the pickup getting uncovered is much much worse. The screen distance (5/8") from the pickup bottom is what counts not the flat metal "shoe" underneath it distance and the pickup/pan are rarely parallel & depending on how/where you measured it might be more than 5/8 and the distance of the highest corner of a tilted screen is the effective distance as it can & will suck air until the highest round perimeter edge of the screen is submerged . Short version: high perf oiling mods not withstanding (high perf build can have adequate psi but starve the rods (the end of the line/most important/critical area) if oiling mods ain't done) but if you have adequate psi for your mild build you are OK (use however many qts to achieve that) & no opinion on the suspended pickup.


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Re: Does "must" really mean MUST? Ref: 1970 383HP [Re: JohnRR] #1690052
10/27/14 11:50 PM
10/27/14 11:50 PM
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Bend,OR USA
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Quote:

Quote:

Five in the pan and one in the filter, 6 total on oil and filter changes I put all of the 6th quart I can get into the oil filter before installing it. I do fill it 5 or 6 times, letting it sit to level off, until it won't take anymore




What pan are you talking about Cab ?


402 pan 383/440 Magnum motors


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Does "must" really mean MUST? Ref: 1970 383HP [Re: Cab_Burge] #1690053
10/27/14 11:58 PM
10/27/14 11:58 PM
Joined: Nov 2007
Posts: 21,808
Kirkland, Washington
Pacnorthcuda Offline
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Kirkland, Washington
I have a 402 pan on a 71 hp motor. Last time I had it off I did a bunch of fluid level measurements and discovered that 4 quarts was way below the windage tray, and of course this is at static condition, with no oil suspended up top. At 5.5 quarts I. The pan the level was still bellow the belly of the windage tray.

I decided that 6 quarts total (including whatever the filter holds) is not a problem.

Re: Does "must" really mean MUST? Ref: 1970 383HP [Re: Pacnorthcuda] #1690054
10/28/14 12:19 AM
10/28/14 12:19 AM
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Florida
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So a follow up question: Should the oil level be maintained at a quart above the factory full mark?


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Re: Does "must" really mean MUST? Ref: 1970 383HP [Re: mopar346] #1690055
10/28/14 12:27 AM
10/28/14 12:27 AM
Joined: Nov 2007
Posts: 21,808
Kirkland, Washington
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In my opinion yes. I consider 1 quart above to be the max, and the full mark on the dipstick to be the min ("add"). I re-marked my dipstick accordingly.

Re: Does "must" really mean MUST? Ref: 1970 383HP [Re: mopar346] #1690056
10/28/14 01:57 AM
10/28/14 01:57 AM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert Offline
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Quote:

So a follow up question: Should the oil level be maintained at a quart above the factory full mark?


bottom line: with the proper weight you need "just enough" oil in the sump to maintain an adequate psi. 8 per 1000 RPM is plenty. A low idle psi is acceptable as long as it jumps as soon as you touch the throttle. internal oiling mods are critical in a perf app


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Re: Does "must" really mean MUST? Ref: 1970 383HP [Re: JohnRR] #1690057
10/28/14 09:51 AM
10/28/14 09:51 AM
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Columbia, CT
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Columbia, CT
Quote:

[
It's too high off the bottom to me , the strainer is designed in such a way that it can be closer to the bottom of the pan and not have a problem drawing in oil.




x2. I keep them within 1/8" of the pan and check with clay during final assembly. Never had an "unsupported" one break off on me but I also "buff" the threads on a wire wheel before threading it in.


Well, art is art, isn't it? Still, on the other hand, water is water! And east is east and west is west and if you take cranberries and stew them like applesauce they taste much more like prunes than rhubarb does. Now, uh... Now you tell me what you know.
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