06-22-2022, 01:52 PM | #1 |
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oil pump
Hi guys, usually I'm on the early v-8 forum, but, I have a question about a 302 in my '48 mercury coupe. I am using a 1986 mustang HO, I need to change it to rear sump, what oil pump can I use? Any thoughts are welcome
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06-22-2022, 02:29 PM | #2 |
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Re: oil pump
The pump mounts to the block. What you need is the pickup for a rear-sump pan.
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06-22-2022, 03:47 PM | #3 |
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Re: oil pump
Your 1986 should have come with the dual sump oil pan this is the correct part. https://www.rockauto.com/en/moreinfo...=12895&jsn=526 Because the oil pump is in the front on 302's you should already have the right parts.
Last edited by JeffB2; 06-22-2022 at 03:53 PM. |
06-22-2022, 06:38 PM | #4 |
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Re: oil pump
re: oil pump, A front sump falls right on top of the front crossmember. I purchased a rear sump pan and pickup for it, what I can't find is the pump that fits inside it.
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06-22-2022, 09:59 PM | #5 |
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Re: oil pump
front sump pan is actually 2 sumps. larger in rear and smaller sump in front. I don't know if any 302 actually had a true rear sump because of the front driven oil pump. BTW I installed a '81 302/c-4 in my '41 ford . just pushed the engine as far back to just clear the firewall and front sump(smaller) just cleared the cross mamber. was a btich getting to the front sump drain plug but is doable.
Last edited by fordor41; 06-23-2022 at 10:09 PM. |
06-23-2022, 02:53 AM | #6 | |
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Re: oil pump
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06-23-2022, 11:15 AM | #7 |
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Re: oil pump
I always called them the double hump sump. This was all that was available for the rear sump. They fit Ford Mustangs and Mercury Capri as well as a few others. The first versions of the rear sump were made for the 1966 Ford Bronco with the 289 but it may be deeper in the front. I just don't remember. The Bronco may have had its own oil pump but I think the later ones all used the one type of oil pump and it may be the same as the one for the front sump set up. I've heard the bronco oil pickup tubes are different than the later 5.0 rear sump set ups. I don't think there would be any advantage with the Bronco type pan.
The pan has to clear the oil pump in the front so I don't know if the clearance can be reduced or not. I'd venture to guess that the clearance is already fairly close. If a person uses a high volume or larger type pump then prepare to get the hammer out to adjust for clearance. It always depends on where a person needs the clearance. Make a notch if it will work. Last edited by rotorwrench; 06-23-2022 at 11:40 AM. |
06-23-2022, 12:58 PM | #8 |
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Re: oil pump
That "dual sump" pan was found on Fox-body Mustangs. I believe it was necessary to clear the steering rack. Having dual sumps/w dual drain plugs was a pain. I could never change the oil without spilling.
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06-23-2022, 05:02 PM | #9 | |
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Re: oil pump
Quote:
Here is an actual OEM 4X4 rear sump. It will be deeper at the front as it has to enclose the pump. What needs to be known, are you using an OEM (which) or aftermarket pan?
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06-23-2022, 07:28 PM | #10 |
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Re: oil pump
re: oil pump, it's an after market oil pan, very low in the front, it comes up about 1 1/2-2" shy of meeting the block. Right now I have the aluminum pan off A 4X4 Explorer on it, but, it's just a butt-ugly thing.
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06-23-2022, 10:10 PM | #11 |
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Re: oil pump
believe T-birds and vans came with double sump pans
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06-23-2022, 11:24 PM | #12 |
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Re: oil pump
re oil pump, here's some pics: the first one is the explorer pan, the second two are the aftermarket pan
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06-24-2022, 01:22 AM | #13 | |
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Re: oil pump
Quote:
If the EXPLORER pan works in the chassis, the double hump steel pan should work? You have an aftermarket pan presently and it will not allow the engine to set correctly in the cradle? Has the front end/steering been modified from stock? The 2nd photo shows an OEM/or aftermarket rear sump? Can you give a description (supplier - PN) of the aftermarket pan that supposedly works? The actual pump is the same. The only difference is the pickup tube and of course the pan. (Another reason the SBC was so popular for swaps, the oil pump was in the rear)
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06-24-2022, 02:40 PM | #14 |
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Re: oil pump
re: oil pump, I tried to fit that pan on, it hits the pump way before the pan meets the block. to be honest, I don't remember who I got it from. btw garden spot hs class of '66. the pan I have on it barely clears the ho pump.
Last edited by tom1948; 06-24-2022 at 02:42 PM. Reason: more info |
06-24-2022, 05:00 PM | #15 | |
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Re: oil pump
Quote:
The EXPLORER PAN works with the HO pump and front axle? That pan can be cleaned and either painted, powder coated or polished. The take-out 5.0L HO is a stock engine or has it been modified (particularly the oil pump)?
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06-24-2022, 07:56 PM | #16 |
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Re: oil pump
The pan on it is odd looking, I can't get to the other side to show what it looks like at this time. To answer your other questions, yes, it is a modified engine, the front crossmember has been replaced and now has rack and pinion steering. i'll try to post some pics
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06-24-2022, 11:19 PM | #17 |
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Re: oil pump
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06-25-2022, 02:26 AM | #18 | |
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Re: oil pump
Quote:
You have a 1996-97 ALUM EXPLODER OIL PAN on the engine (86 MUST HO) and it works other than appearance (which I understand). The EXPLODER also used a steel pan - Are there any salvage yards in your area where you can go looking (before spending big $$$)? If you find a steel pan, measure the front drop section and compare it to the aluminum. If the same drop (+ / -) that may be your answer. Was the car modified when you got it (front suspension)? Was the ALUM PAN included? Now this is all conjecture as I have no late LT MPC INFO. EDIT - The STEEL pan was used 1997-2001 I believe, the ALUM 1995-96. PAN PN - F87Z 6675-GA PICKUP - F87Z 6622-CA The oil pump itself is the same 1962 -
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06-25-2022, 02:36 AM | #19 | |
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Re: oil pump
Quote:
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06-25-2022, 03:52 PM | #20 |
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Re: oil pump
Tom1948, the blue oil pan pictured doesn't look right for small block Ford to me. Have you tried to lay a set of gaskets on the pan rail? It kind of looks like a GM pan. Small block Fords had dipstick in timing cover with front sump and dual or rear sump into pan until around 1982, then through side of block. I don't remember a little kick out in the pan like the one pictured. As others have stated, the oil pan needs to be deeper in the front than the oil pump hangs down on any sump.
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06-25-2022, 07:29 PM | #21 |
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Re: oil pump
the dipstick on my'86 mustang ho is on the l/s between the back 2 spark plugs, without the pump the pan mates to the block perfectly. thanks everyone for your input. btw, I'm not a tyro on this, I worked as an import tech for 30+years before cancer took me out of the workforce and built many engines, foreign and domestic.it may be for a marine application, dunno
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06-26-2022, 06:59 AM | #22 | ||
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Re: oil pump
Quote:
Quote:
That pan looks to me as being an early SBF front sump. Maybe it was altered incorrectly or something was lost in communications somewhere. If the 1997/ EXPLORER steel pan will not work, I would imagine you are going to have to get with a custom pan fabricator and have something made. Early oil pan front sump are shown below -
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