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Oil pumps and oil pans

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81slantnosewp
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Joined: Fri Jun 05, 2015 3:49 pm

Oil pumps and oil pans

Post #1 by 81slantnosewp » Tue Feb 04, 2020 10:30 pm

some 300 engines did not have the dipstick in the block but rather in the pan

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while others were in the side of the block
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240 and 300 engines in cars and older trucks had mid sump pans

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some oil pans had raised mounting holes that prevented the use of one piece rubber gaskets while others were flat it is common to sand or file down these mounting holes to use the one piece rubber gaskets rather than the cork
you also had steel pan reinforcement bars available at some point
Image seen in the diagram

several pick ups are available

74-sImage
74-s1Image
74-s2Image
74-s3Image



melling offers two pumps stock and high volume high volume pumps have rumored to twist the distributor shaft however that was most likely due to improper distributer shaft seating
m-74
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m74hv
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crank scrapers or windage trays are available at https://www.crank-scrapers.com/Ford_straight_six.html
apparently both metal or teflon



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Last edited by 81slantnosewp on Wed Feb 05, 2020 4:08 pm, edited 4 times in total.
occam's razor vs shrodinger's cat

81 f100: Lilly 300 carb 81 f100 build thread
86 f150: Zoey 302 efi
88 ranger: Belle 2.3
91 f250: Alice ?
95 f150: Ruby 300 efi
1st 300 engine build thread

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Shorty
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Location: southern Ontario, Canada

Re: Oil pumps and oil pans

Post #2 by Shorty » Wed Feb 05, 2020 9:23 am

I have pulled 300s out of trucks (1975 f 350 e.g.) with mid sump oil pan
85 F150 on 78 bronco frame C6 np205 welded dana44 front, trussed posi nine inch rear. EFI exhaust manifolds into one 2 1/2" rolls on 35x12.5x15 Maxxis Trepador.

BigBlue94
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Location: Hoyt, Kansas

Re: Oil pumps and oil pans

Post #3 by BigBlue94 » Wed Feb 05, 2020 12:19 pm

There were steel oil pan rail stiffening supports available. They fit in the lipped rail if the pan, and then the assembly was bolted down. It was a pair, one for each long side. They helped provide a better seal against leaks. I dont have any pics.
1985 Bronco. 309ci I6, NP435, 4.56 gears, Detroit locker and tru-trac, 4" lift, and 37" swamper tires. The 309 is 9.75:1 CR with a Schneider 140H cam, 4bbl, roller rockers, larger valves, and headers.

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81slantnosewp
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Re: Oil pumps and oil pans

Post #4 by 81slantnosewp » Wed Feb 05, 2020 12:40 pm

thank you for that reminder one of my trucks actually have them any photos you can find ill add them
occam's razor vs shrodinger's cat

81 f100: Lilly 300 carb 81 f100 build thread
86 f150: Zoey 302 efi
88 ranger: Belle 2.3
91 f250: Alice ?
95 f150: Ruby 300 efi
1st 300 engine build thread

F-250 Restorer
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Re: Oil pumps and oil pans

Post #5 by F-250 Restorer » Thu Feb 20, 2020 12:31 am

I wanted to chip in regarding my experience with the Melling hv oil pump. I ran one for nearly 10 years. It churned butter thick 20/50 oil for that entire time. I used a hardened $10 shaft, hooked to a DS2 distributor that was newly rebuilt when the hv pump went on the new engine. I never had a problem with it, and I used to spin it quite often way too fast.

F-250 Restorer
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Re: Oil pumps and oil pans

Post #6 by F-250 Restorer » Thu Feb 20, 2020 12:38 am

BigBlue94 wrote:There were steel oil pan rail stiffening supports available. They fit in the lipped rail if the pan, and then the assembly was bolted down. It was a pair, one for each long side. They helped provide a better seal against leaks. I dont have any pics.


They came on the efi trucks. Below is my best on only pic of one of the rails. I used them and studs where possible on the pan, along with a one piece efi gasket, and have not had drop one leak, cross my fingers.

Image

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81slantnosewp
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Re: Oil pumps and oil pans

Post #7 by 81slantnosewp » Thu Feb 20, 2020 1:27 am

Thanks ill get around to adding it to the post currently swamped not enough time to dedicate to finishing all of these yet
occam's razor vs shrodinger's cat

81 f100: Lilly 300 carb 81 f100 build thread
86 f150: Zoey 302 efi
88 ranger: Belle 2.3
91 f250: Alice ?
95 f150: Ruby 300 efi
1st 300 engine build thread

BigBlue94
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Posts: 543
Joined: Wed Mar 07, 2018 6:38 pm
Location: Hoyt, Kansas

Re: Oil pumps and oil pans

Post #8 by BigBlue94 » Fri Feb 21, 2020 11:32 am

F-250 Restorer wrote:
BigBlue94 wrote:There were steel oil pan rail stiffening supports available. They fit in the lipped rail if the pan, and then the assembly was bolted down. It was a pair, one for each long side. They helped provide a better seal against leaks. I dont have any pics.


They came on the efi trucks. Below is my best on only pic of one of the rails. I used them and studs where possible on the pan, along with a one piece efi gasket, and have not had drop one leak, cross my fingers.

Image


I actually just pulled a set from the JY. There were no studs, just bolts. Removed them with the engine still in place. I also found a set from a 302/351 v8. I'll try to get pics tonight, if I remember.
1985 Bronco. 309ci I6, NP435, 4.56 gears, Detroit locker and tru-trac, 4" lift, and 37" swamper tires. The 309 is 9.75:1 CR with a Schneider 140H cam, 4bbl, roller rockers, larger valves, and headers.

BigBlue94
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Posts: 543
Joined: Wed Mar 07, 2018 6:38 pm
Location: Hoyt, Kansas

Re: Oil pumps and oil pans

Post #9 by BigBlue94 » Sun Feb 23, 2020 2:00 pm

Oil pan stiffening rails, along with a set for a SBF v8. From what I can gather, these were found on the EFI engines.

Image
1985 Bronco. 309ci I6, NP435, 4.56 gears, Detroit locker and tru-trac, 4" lift, and 37" swamper tires. The 309 is 9.75:1 CR with a Schneider 140H cam, 4bbl, roller rockers, larger valves, and headers.

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THE FRENCHTOWN FLYER
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Re: Oil pumps and oil pans

Post #10 by THE FRENCHTOWN FLYER » Mon Feb 24, 2020 9:35 am

Those were used in conjunction with the one-piece pan gaskets, in lieu of pan hole stand-offs.
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