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JM 35 Sedan · 07-01-2017, 09:02 AM

QUOTE=42merc;1492965]My sore spot with imported knock-offs, oil pumps or steering U-joints is poor heat treating, resulting in rapid wear.
I've had no issues with real Melling oil pumps, M19 or M15.[/QUOTE]

Nor have I. I always use the Mellings M-19 pumps in my FH engines. I can recall hearing/reading many years ago that some Mellings pumps had castings that were undersize at the diameter that locates down in the block, and this should not have been a loose fit since this could cause problems with oil pressure. I've never personally seen this condition.

07-01-2017, 09:02 AM	#9
JM 35 Sedan Senior Member Join Date: May 2010 Location: Near Rising Sun, Maryland Posts: 10,876	Re: speedway oil pump QUOTE=42merc;1492965]My sore spot with imported knock-offs, oil pumps or steering U-joints is poor heat treating, resulting in rapid wear. I've had no issues with real Melling oil pumps, M19 or M15.[/QUOTE] Nor have I. I always use the Mellings M-19 pumps in my FH engines. I can recall hearing/reading many years ago that some Mellings pumps had castings that were undersize at the diameter that locates down in the block, and this should not have been a loose fit since this could cause problems with oil pressure. I've never personally seen this condition. __________________ *John* *"Never give up on what you really want to do. The person with big dreams is more powerful than one with all the facts". Albert Einstein*