MarcDeSoto Posted January 4, 2022 Report Share Posted January 4, 2022 (edited) Does anyone just sell the oil pump gasket for a 48 DeSoto? Can't seem to find one without having to buy a new oil pump. Edited January 4, 2022 by MarcDeSoto Quote Link to comment Share on other sites More sharing options...
Sniper Posted January 4, 2022 Report Share Posted January 4, 2022 Best Gasket shows a part number, not sure it it's available separately though. Quote Link to comment Share on other sites More sharing options...
MarcDeSoto Posted January 4, 2022 Author Report Share Posted January 4, 2022 (edited) I'm think of buying some gasket material and making my own gaskets. And I see they make silicone instant gasket sealer that you just spread on without a paper gasket. Edited January 4, 2022 by MarcDeSoto Quote Link to comment Share on other sites More sharing options...
TodFitch Posted January 5, 2022 Report Share Posted January 5, 2022 On my older Plymouth that uses spur gears in the oil pump, the gasket thickness sets the clearance between the block and the gears. Too thick a gasket and I will experience low oil pressure. Too thin and I guess there could be some rubbing. Way back when I needed a gasket and did not have one available so I put a straight edge across the oil pump and used a feeler gauge to figure out what my clearances were going to be. If I recall correctly, I found that a brown paper shopping bag had the correct thickness and was easy to cut to shape. You have a newer engine than mine but I suspect some of this still holds true. In particular I would be leery of using a silicone instant gasket material as I don’t see how you can control the final thickness of the material after the pump is installed and bolted tight. 2 Quote Link to comment Share on other sites More sharing options...
DJK Posted January 5, 2022 Report Share Posted January 5, 2022 Would not recommend the silicone in that application for many reasons. Quote Link to comment Share on other sites More sharing options...
Dodgeb4ya Posted January 5, 2022 Report Share Posted January 5, 2022 NO silicone sealer....just use heavy gasket paper and carefully make one exactly to match the pump mounting surface. Gasket paper used for this gasket is .012"-.015" 1 1 Quote Link to comment Share on other sites More sharing options...
MarcDeSoto Posted January 5, 2022 Author Report Share Posted January 5, 2022 Who sells heavy gasket paper? I tried HF and O'Reilly's, but they don't carry it. Quote Link to comment Share on other sites More sharing options...
Dodgeb4ya Posted January 5, 2022 Report Share Posted January 5, 2022 (edited) Tell a quality knowledgeable parts store to look up ... Fel-Pro 3045 This is a sheet of 1/64" (.015") thick Felpro gasket paper...Felpro, Karropak and a few other companies make many different gasket materials and many thicknesses. Edited January 5, 2022 by Dodgeb4ya 2 Quote Link to comment Share on other sites More sharing options...
Plymouthy Adams Posted January 5, 2022 Report Share Posted January 5, 2022 I find it very hard to believe this, my local store has many many options on gasket materials.....are you doing the looking online or did a store employee tell you that do not stock any gasket material.... Quote Link to comment Share on other sites More sharing options...
Dodgeb4ya Posted January 5, 2022 Report Share Posted January 5, 2022 (edited) It's a problem with parts stores getting counter help to find odscure parts at times. Edited January 5, 2022 by Dodgeb4ya 1 Quote Link to comment Share on other sites More sharing options...
MarcDeSoto Posted January 5, 2022 Author Report Share Posted January 5, 2022 yes, that's true. If I tell an O'Reilly's clerk do they have any parts for a 48 DeSoto, he will say no. But if I tell him, I have a 48 Chrysler Royal, all of a sudden, he has parts. Quote Link to comment Share on other sites More sharing options...
MarcDeSoto Posted January 5, 2022 Author Report Share Posted January 5, 2022 I forgot to say that the reason I want an oil pump gasket is because I've been told that you have prime the pump with oil or it won't start pumping. And I'm assuming that if I remove the pump, I will need a new gasket. Quote Link to comment Share on other sites More sharing options...
joecoozie Posted January 5, 2022 Report Share Posted January 5, 2022 https://www.olsonsgaskets.com/ 1 Quote Link to comment Share on other sites More sharing options...
Sniper Posted January 5, 2022 Report Share Posted January 5, 2022 There are two gasket with the oil pump. the cover gasket and the pump to block gasket. How do you plan to prime the oil pump? Quote Link to comment Share on other sites More sharing options...
Kilgore47 Posted January 5, 2022 Report Share Posted January 5, 2022 Years back I got a set of punches. They are very helpful when making gaskets. 2 Quote Link to comment Share on other sites More sharing options...
desoto1939 Posted January 5, 2022 Report Share Posted January 5, 2022 Here is the gasket number for the oil pump cover and base gasket taken from my McCord gasket catalog 1937-54 The numbers on the left are the MoPar part number the numbers on the right is the McCord Gasket number So the 46-54 number was the same gasket body gasket Hope this get you in the right direction. Again this is why i have collected the older cross reference catalogs. Rich Hartung Desoto1939@aol.com Quote Link to comment Share on other sites More sharing options...
Dodgeb4ya Posted January 5, 2022 Report Share Posted January 5, 2022 As mentioned Olsen's will have that gasket and any others if and when needed. The 1948 DeSoto oil pump cover uses a square cut rubber O-ring...don't mess with it unless necessary...some what hard to find. No paper gasket used on the cover plate just that square cut O-Ring. Quote Link to comment Share on other sites More sharing options...
MarcDeSoto Posted January 5, 2022 Author Report Share Posted January 5, 2022 OK, today I went to O'reillys and asked for the Felpro 3045 kit. It wasn't on the shelf, but the clerk found on in the back of the store. I also bought those hole punches. I would prime the pump by removing it and pouring some motor oil into it. Then, turn the pinion gear before installing it again. 1 Quote Link to comment Share on other sites More sharing options...
greg g Posted January 6, 2022 Report Share Posted January 6, 2022 My dad used to pack the oil pump with petroleum jelly, prior to installing. Quote Link to comment Share on other sites More sharing options...
LazyK Posted January 6, 2022 Report Share Posted January 6, 2022 pack all my oil pumps with white grease,prior to start up, and have never had a problem. Quote Link to comment Share on other sites More sharing options...
Sniper Posted January 6, 2022 Report Share Posted January 6, 2022 Reason I asked how Marc was going to prime the pump was that if you go the grease route you will need an end cover gasket/seal. Quote Link to comment Share on other sites More sharing options...
DJK Posted January 6, 2022 Report Share Posted January 6, 2022 20 hours ago, Dodgeb4ya said: As mentioned Olsen's will have that gasket and any others if and when needed. The 1948 DeSoto oil pump cover uses a square cut rubber O-ring...don't mess with it unless necessary...some what hard to find. No paper gasket used on the cover plate just that square cut O-Ring. I found the square cut "O" ring on ebay. jcapartscom, item #270800755048, 3/32" #143 1 Quote Link to comment Share on other sites More sharing options...
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