#528761
Wed Apr 16 2014 08:56 PM
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Joined: Apr 2011
Posts: 114 Likes: 3
Petro Enthusiast
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OP
Petro Enthusiast
Joined: Apr 2011
Posts: 114 Likes: 3 |
What to do when the check valve retainer will not unscrew from the lower Diaphragm cover assy. Tried penetrating oil first,Then soaked it Vinegar for a few days. No Dice. How important is the check valve rebuild? Jack Sims manual mentions drilling it out. Any thoughts? The Main valve has been rebuilt and it didn't have much rust at all (internally) Thanks in advance
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Joined: Nov 2000
Posts: 7,791 Likes: 9
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Veteran Member
Joined: Nov 2000
Posts: 7,791 Likes: 9 |
Jack Sim (not Sims, Sim), who has restored over 300 Model 90 series ECOs says again, the only way is to drill it out. Be carful, the threads of the retainer are not at the top of the retainer, they are about 3/8" down. Start by drilling a small hole down the center of the retainer, keep enlarging your drill bit, as soon as you see the edges of the threads discontinue drillings, it is time to chisel out the remains of the retainer.
Keep in mind, after restoring over 300 of these units I should have come up with a better way, but consider this retainer has been in this unit for over 50 years, I have never found a better way.
I still have a few NOS retainers available.
Jack Sim
Last edited by Jack Sim; Wed Apr 16 2014 11:19 PM.
Author, 1st & 2nd editions of Gas Pump ID book, 3rd edition is now available at www.gaspumpbible.comAir Meter ID book also available
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Joined: Oct 2000
Posts: 22,780 Likes: 5
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Lubricate it w/ Fresh BEER, Jack!
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Joined: May 2005
Posts: 4,640 Likes: 42
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Jack I don't think he was calling you Sims,but rather referencing your manual afterwards.
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Joined: Nov 2000
Posts: 7,791 Likes: 9
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Joined: Nov 2000
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All my life I have corrected the spelling of my last name. I had an uncle that got so tired of everyone putting an S on the end of our name he actually had his last name changed to Sims.
Jack Sim
Author, 1st & 2nd editions of Gas Pump ID book, 3rd edition is now available at www.gaspumpbible.comAir Meter ID book also available
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Joined: Oct 2000
Posts: 22,780 Likes: 5
Veteran Member
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Veteran Member
Joined: Oct 2000
Posts: 22,780 Likes: 5 |
Common Respect to spell a persons name correctly or use correct punctuation. Jack Sims manual mentions drilling it out. Jack Sim 's manual mentions drilling it out.
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