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Questions on gaskets for E58 360 Oil Pan #1789457 03/27/15 05:13 PM 03/27/15 05:13 PM
Joined: Jan 2011 Posts: 15,887 Central Florida larrymopar360 OP Stud Muffin
larrymopar360 OP Stud Muffin Joined: Jan 2011 Posts: 15,887 Central Florida	Mechanic is replacing the Oil Pan Gasket (under warranty) on my '80 Aspen A38/E58. I have a Milodon one piece o/p gasket to give him. I also will need a rear main seal, right? Excuse my ignorance on the subject. If I do, please direct me to the best type/brand so I won't be going thru this again. He is doing all labor under warranty because it's leaked since he replaced it before. Thanks. Facts are stubborn things.

Re: Questions on gaskets for E58 360 Oil Pan [Re: larrymopar360] #1789458 03/27/15 05:26 PM 03/27/15 05:26 PM
Joined: Jan 2003 Posts: 2,931 P Paul_Fancsali master
Paul_Fancsali master P Joined: Jan 2003 Posts: 2,931	It will probably continue to leak the rear main on small block are pain to keep from leaking Use good silicone sealer on cap and do not apply in cold or damp conditions. Use grease on seal itself I prefer to use Mopar gasket in a can for the pan gasket. Assemble and do not run for several hours this lets silicone set up . By the synthetic oil seems to love to leak on the 360s seeps right past gaskets if this is the problem use high mileage oil it really does help reduce leaks

Re: Questions on gaskets for E58 360 Oil Pan [Re: Paul_Fancsali] #1789459 03/27/15 05:29 PM 03/27/15 05:29 PM
Joined: Jan 2011 Posts: 15,887 Central Florida larrymopar360 OP Stud Muffin
larrymopar360 OP Stud Muffin Joined: Jan 2011 Posts: 15,887 Central Florida	Quote: It will probably continue to leak the rear main on small block are pain to keep from leaking Use good silicone sealer on cap and do not apply in cold or damp conditions. Use grease on seal itself I prefer to use Mopar gasket in a can for the pan gasket. Assemble and do not run for several hours this lets silicone set up . By the synthetic oil seems to love to leak on the 360s seeps right past gaskets if this is the problem use high mileage oil it really does help reduce leaks I don't run synthetic in it. Thx. Facts are stubborn things.

Re: Questions on gaskets for E58 360 Oil Pan [Re: larrymopar360] #1789460 03/27/15 05:35 PM 03/27/15 05:35 PM
Joined: May 2003 Posts: 15,487 Florida S scratchnfotraction I Live Here
scratchnfotraction I Live Here S Joined: May 2003 Posts: 15,487 Florida	Hi Larry look at the new oil seal from superformance get them at Hughes or other moparts sponsers. I just tried a few of the gaskets out and really like them so far.

Re: Questions on gaskets for E58 360 Oil Pan [Re: larrymopar360] #1789461 03/27/15 05:42 PM 03/27/15 05:42 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	If the Milodon 1pc gasket has the (2) side flat gaskets and (2) end black neoprene seals that fit into the oil pan half moon cutouts all connected & I am assuming that is what it is then that is it for an oil pan gasket (+ cement). If he was to replace the black neoprene rear main seals (2 halves) he'd pull the #5 main cap & one half goes in it then drop the crank a hair to R&R the other half that is up in the block groove. live every 24 hour block of time like it's your last day on earth

Re: Questions on gaskets for E58 360 Oil Pan [Re: scratchnfotraction] #1789462 03/27/15 05:50 PM 03/27/15 05:50 PM
Joined: Jan 2011 Posts: 15,887 Central Florida larrymopar360 OP Stud Muffin
larrymopar360 OP Stud Muffin Joined: Jan 2011 Posts: 15,887 Central Florida	Quote: Hi Larry look at the new oil seal from superformance get them at Hughes or other moparts sponsers. I just tried a few of the gaskets out and really like them so far. Hey buddy, long time no talk to! Thanks for info and I will check them out. Facts are stubborn things.

Re: Questions on gaskets for E58 360 Oil Pan [Re: RapidRobert] #1789463 03/27/15 05:52 PM 03/27/15 05:52 PM
Joined: Jan 2011 Posts: 15,887 Central Florida larrymopar360 OP Stud Muffin
larrymopar360 OP Stud Muffin Joined: Jan 2011 Posts: 15,887 Central Florida	Quote: If the Milodon 1pc gasket has the (2) side flat gaskets and (2) end black neoprene seals that fit into the oil pan half moon cutouts all connected & I am assuming that is what it is then that is it for an oil pan gasket (+ cement). If he was to replace the black neoprene rear main seals (2 halves) he'd pull the #5 main cap & one half goes in it then drop the crank a hair to R&R the other half that is up in the block groove. That is the o/p gasket I got. I figured the rear main seal should be replaced anytime the pan is pulled? Thanks. Facts are stubborn things.

Re: Questions on gaskets for E58 360 Oil Pan [Re: larrymopar360] #1789464 03/27/15 05:59 PM 03/27/15 05:59 PM
Joined: Nov 2005 Posts: 589 Fortworth TX M mod5v mopar
mod5v mopar M Joined: Nov 2005 Posts: 589 Fortworth TX	If the rear main is NOT leaking leave it be and just replace the pan gasket. Make sure you get the correct gasket. The one piece gaskets for a magnum don't work on a LA 360 unless you use a lot of silicon to fill in the gap.

Re: Questions on gaskets for E58 360 Oil Pan [Re: mod5v] #1789465 03/28/15 12:31 AM 03/28/15 12:31 AM
Joined: Jan 2011 Posts: 15,887 Central Florida larrymopar360 OP Stud Muffin
larrymopar360 OP Stud Muffin Joined: Jan 2011 Posts: 15,887 Central Florida	Quote: If the rear main is NOT leaking leave it be and just replace the pan gasket. Make sure you get the correct gasket. The one piece gaskets for a magnum don't work on a LA 360 unless you use a lot of silicon to fill in the gap. Ok, thanks! Facts are stubborn things.

Re: Questions on gaskets for E58 360 Oil Pan [Re: larrymopar360] #1789466 03/28/15 03:20 AM 03/28/15 03:20 AM
Joined: Jan 2011 Posts: 15,887 Central Florida larrymopar360 OP Stud Muffin
larrymopar360 OP Stud Muffin Joined: Jan 2011 Posts: 15,887 Central Florida	I decided to have new oil pan on hand since not too expensive. Looking at this Jegs one, and it states 5 qts. plus filter. I thought stock would be 4 qts. plus filter. I see the 318 one shows 4 qts. plus filter??? Also, any experience with Jegs oil pans. I already tried to find a NOS one. Thank you. http://www.jegs.com/i/JEGS+Performance+Products/555/50272/10002/-1 Facts are stubborn things.

Re: Questions on gaskets for E58 360 Oil Pan [Re: larrymopar360] #1798779 04/08/15 07:54 PM 04/08/15 07:54 PM
Joined: Jan 2011 Posts: 15,887 Central Florida larrymopar360 OP Stud Muffin
larrymopar360 OP Stud Muffin Joined: Jan 2011 Posts: 15,887 Central Florida	Well this is quite an old thread, but I've just gotten busy and had to put the old Mopes on hold, which I hate. But just wanted to upadate that I just ordered the Superformance gasket set as recommended. Hopefully the end of next week I can install the pan and have the old girl back on the road! Thanks. Facts are stubborn things.

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