[C320-list] Yanmar fuel lift pump replacement

[Joe Grande]

While we’re talking about fuel pumps, has anyone ever replaced the high pressure lift pump. The 3 fuel lines are a bitch to deal with.

Thank you,
Joe Grande
              Marina:  WESTLAKE LANDING
2046 Westlake Ave N, Slip 34
    Mail:   2132 Westlake Ave N, PMB 103
            Seattle, WA 98109-2404
  Phone:  206.940.1231


From: KEN GEIGER via C320-list<mailto:c320-list at lists.catalina320.com>
Sent: Sunday, January 29, 2023 3:09 PM
To: ade.bateman at outlook.com<mailto:ade.bateman at outlook.com>; C320-List at Catalina320.com<mailto:C320-List at Catalina320.com>
Cc: KEN GEIGER<mailto:kendgb at aol.com>
Subject: Re: [C320-list] Yanmar fuel lift pump replacement

Thanks Ade, that what i needed.  I want to be carrying a spare for now
Ken

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  On Mon, 30 Jan 2023 at 9:06, Ade Bateman<ade.bateman at outlook.com> wrote:   <!--#yiv4832206971 filtered {}#yiv4832206971 filtered {}#yiv4832206971 filtered {}#yiv4832206971 p.yiv4832206971MsoNormal, #yiv4832206971 li.yiv4832206971MsoNormal, #yiv4832206971 div.yiv4832206971MsoNormal {margin:0in;font-size:11.0pt;font-family:"Calibri", sans-serif;}#yiv4832206971 a:link, #yiv4832206971 span.yiv4832206971MsoHyperlink {color:blue;text-decoration:underline;}#yiv4832206971 span.yiv4832206971EmailStyle19 {font-family:"Calibri", sans-serif;color:windowtext;}#yiv4832206971 .yiv4832206971MsoChpDefault {font-family:"Calibri", sans-serif;}#yiv4832206971 filtered {}#yiv4832206971 div.yiv4832206971WordSection1 {}-->
Hi Ken,



The write-up linked from this page: https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fc320.org%2Ffilemgmt%2Fviewcat.php%3Fcid%3D5&data=05%7C01%7C%7C8311b4fd4e2f40c94d1408db024de50e%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638106305808525864%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=okYDhY34okxMQ1gPKzDm8Wh%2FeDJ93Up6%2FXD2Zlchwiw%3D&reserved=0

Direct link: https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fc320.org%2Ffilemgmt%2Fvisit.php%3Flid%3D192&data=05%7C01%7C%7C8311b4fd4e2f40c94d1408db024de50e%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638106305808525864%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=2GYTCx7KYILj231JsiRBUUygrCaGRyDHXfQaUuxKeog%3D&reserved=0



The Yanmar part number for the replacement pump is 129301-52020. You also need a new gasket (Yanmar 121520-01851).



You an get after-market parts for about $40 and Yanmar OEM parts for about $120. Given that the pump has been working fine for almost 30 years and I don’t intend to replace it again, I bought the OEM part.



I also replaced the bolts that attach the fuel lines (Yanmar 105582-59150). That’s definitely not normally necessary, but in my case, I discovered that the cause of an ongoing tiny fuel leak was where one of the bolts had been overtightened and damaged the threads so replacing both for $10 seemed worth it while I was doing this project. Either way, you should replace the 8mm copper washers (2 on each side).



Hope that helps,



Ade.



From: KEN GEIGER <kendgb at aol.com>
Sent: Sunday, January 29, 2023 11:59 AM
To: C320-List at Catalina320.com; Ade Bateman via C320-list <c320-list at lists.catalina320.com>; C320-List at Catalina320.com
Cc: Ade Bateman <ade.bateman at outlook.com>
Subject: Re: [C320-list] Yanmar fuel lift pump replacement



Hi, what replacement pump did you use and can you post a link to Troy's write up.



Ken Geiger

Northern Dream

765 2000

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On Mon, 30 Jan 2023 at 3:44, Ade Bateman via C320-list

<c320-list at lists.catalina320.com> wrote:

I just wanted to send a quick note of thanks to Troy Dunn for writing up and posting the instructions for replacing the lift pump on the Yanmar 3GM30F. I replaced mine yesterday. It turned out to be a straightforward procedure, but I was glad to have reviewed Troy's write-up ahead of time. Removing the remains of the old gasket was time consuming but otherwise the replacement was quick and easy.



Thanks again,



Ade.



--

Sound Thinking, #257 (1995)