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Old 10-12-2020, 06:57 PM   #1
my4dv8
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Default Melling M19 oil pump

There seems to be a raft of M19 mellings 42 to later type oil pumps on Ebay . Do they claim to be Melllings or are they actually that . What are folks thoughts on quality of these pumps .

Last edited by my4dv8; 10-13-2020 at 01:35 PM.
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Old 10-12-2020, 07:11 PM   #2
KiWinUS
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Default Re: Melting M19 oil pump

Bryan I have used the Melling M19 numerous times with zero issues. They had melling cast into them. All were purchased off eBay but quite some time back.
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Old 10-12-2020, 07:28 PM   #3
petehoovie
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Default Re: Melting M19 oil pump

Does Melling have any competition???
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Old 10-12-2020, 09:04 PM   #4
Ronnieroadster
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Default Re: Melting M19 oil pump

Be careful when looking at those pumps on Ebay. If the pump is truly a Melling M-19 the gear cover will have the M-19 cast into it and the cover bolts will not have a metric size on them. There's import knock offs of the melling pump these cheap imports will have a blank gear cover and the four bolts will have the metric size on the heads.
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Old 10-13-2020, 12:31 AM   #5
my4dv8
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Default Re: Melting M19 oil pump

Thanks guys , thats what i was asking about knock offs . Often with an auction image you have no way of know knock off from the real deal . As @KiWinUS said he got his from a trustworthy ebay vendors while ago ,who now would be???? But I have a few tips to go on now.
Sorry if I seem sceptical of so many “melling” named pumps . But why fit a lemon without proper knowledge.

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Old 10-13-2020, 08:49 AM   #6
Ol' Ron
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Default Re: Melting M19 oil pump

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I quit using Melling Pumps 40 years ago, more trouble than they're worth. They may have improved them, but I'll stick with the original.
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Old 10-13-2020, 09:16 AM   #7
JM 35 Sedan
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Default Re: Melting M19 oil pump

I've used Melling M19 oil pumps for 20 years with no problems. I've personally put nearly 40k miles on my '35 fordor sedan that uses a Melling M19....not to be confused with the Melling M15 high volume, high pressure oil pump that's best suited for racing engines with greater than normal bearing clearances. I would definitely not suggest using any of the knock off Melling oil pumps available from various sources.
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Old 10-13-2020, 12:39 PM   #8
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Default Re: Melting M19 oil pump

I agree with Ron.
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Old 10-13-2020, 01:21 PM   #9
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Default Re: Melting M19 oil pump

I don't know about Melling, but avoid aftermarket pumps like the plague. On my last build, I used a Speedway Motors pump to save a few bucks. The engine started right up and ran fine, but would idle at 15 psi hot and max out at 40 psi. That's OK I guess, but not what I'm used to. I sent some original pumps to "flatjack9" above, and he graciously tested them for me. They all tested good, so I used the one that I knew was from a low mileage engine. After I installed it, I got 25 psi hot idle and a max between 55 and 60, which is what I am used to.

The only problem is I now have a slight leak at the rear main seal that was bone dry before. I gues you can't re-use seals no matter how careful you are.
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