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Post by timp4411 on Mar 4, 2021 14:58:37 GMT -5
Hi All. I have a 2006 3860 and my vacuum pump has been cycling too often.
The duckbills have never been changed so I figured I'd let the Marine Mechanic do the job as I have heard it's very hard to get to the vacu-pump on my boat model.
I just got a call form the Mechanic who said he finds it IMPOSSIBLE to get to the vacu-pump to change the duckbills.
The pump is located on the far side of the Port engine and mounted up high and he said he isn't small enough to lay on top of the engine and do the job.
He said he could cut out a hole in the under-seat storage, but didn't know how he would repair it once he cut it open.
So he, more or less, told me I'm out of luck to get him to do the job. I've gotta find someone/somewhere else to do the job.
So.... anyone else with a 3860/4060 who has changed their Duckbills?
I know there's gotta be someone out there who can offer some help/suggestions.
I'm all ears.....
Thanks.
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Post by nate4060 on Mar 5, 2021 18:59:09 GMT -5
I'll be watching this thread. I have a 4060 and have been putting that job off. I have the Glendinning shore power coilers on that side as well to further complicate matters. My instinct is to try to just take out the whole vacuum pump and work on it outside of the engine compartment. Either way I have to take the coiler guides out to even think about doing anything.
Good luck and please report back with the technique you go with
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Post by legend02 on Mar 7, 2021 14:44:50 GMT -5
I did my 2004 3560 myself not difficult at all. Show a pic where your pump is. I'm sure it's the same layout as mine but I could be wrong. Change out the plunger as well while your at it.
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Post by timp4411 on Mar 15, 2021 10:31:40 GMT -5
I'll be watching this thread. I have a 4060 and have been putting that job off. I have the Glendinning shore power coilers on that side as well to further complicate matters. My instinct is to try to just take out the whole vacuum pump and work on it outside of the engine compartment. Either way I have to take the coiler guides out to even think about doing anything. Good luck and please report back with the technique you go with I have the Glendinning Cable Master(s) as well and it complicates the access that much more.
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Post by timp4411 on Mar 15, 2021 10:32:29 GMT -5
I did my 2004 3560 myself not difficult at all. Show a pic where your pump is. I'm sure it's the same layout as mine but I could be wrong. Change out the plunger as well while your at it. The next time I go to the boat, I'll try to get some pics.
Thanks
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Post by jnelson90 on Mar 15, 2021 11:30:56 GMT -5
I also have a 2006 3860 with duck bills that have never been changed. Looking forward to what you find out and how costly/challenging the job actually is. Best of luck!
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Post by nate4060 on Mar 16, 2021 10:20:44 GMT -5
I'll be watching this thread. I have a 4060 and have been putting that job off. I have the Glendinning shore power coilers on that side as well to further complicate matters. My instinct is to try to just take out the whole vacuum pump and work on it outside of the engine compartment. Either way I have to take the coiler guides out to even think about doing anything. Good luck and please report back with the technique you go with I have the Glendinning Cable Master(s) as well and it complicates the access that much more.
I was at my boat yesterday completing a battery charger replacement and took a closer look. I think the only viable plan of attack is to remove the cable master guides for access and to remove the full vacuum generator and work on it out of the boat. It is much easier to remove the sanitation hoses and pull the vacuum generator out than to get up to their location to change the duckbills. Gives you a chance to do a full rebuild and replace the bellows at the same time. I would not attempt to cut any access ports up top as it probably isn't going to give enough room to work anyway. Just my thoughts, good luck. I'm hoping mine make it through this season and I plan on getting to them next winter.
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Post by nate4060 on Mar 16, 2021 10:29:35 GMT -5
I did my 2004 3560 myself not difficult at all. Show a pic where your pump is. I'm sure it's the same layout as mine but I could be wrong. Change out the plunger as well while your at it. The vacuum generators on the 3860/4060 are mounted way high (about 1.5 feet) above the port fuel tank almost at gunwale level. I believe the 3560 vacuum generator is mounted forward of the port motor? Different layout.
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Post by gofast24 on Mar 17, 2021 10:47:02 GMT -5
Agree, take out vacuum pump and change duck bills and bellows, and clean vac tank at the same time. We had ours duck bills, one motor, and bellows replaced a couple years ago but tech did it all in the engine room, no space problems but maybe 4160 engine room a little more space to do job?
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Post by floatingforari on Apr 21, 2021 15:56:57 GMT -5
I changed mine this winter. It is a bit hard to get to them but didn't take me more than an hour or so and less than $100 to do both sides. Im 5'11 180lbs so not overly large. Lower body on engine and upper rested on fuel tank. Keep in mind not to over tighten as they will tear if you do and you'll find yourself crawling around above your fuel tanks again way too soon.
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Post by timp4411 on Apr 23, 2021 13:57:12 GMT -5
I have the Glendinning Cable Master(s) as well and it complicates the access that much more.
I was at my boat yesterday completing a battery charger replacement and took a closer look. I think the only viable plan of attack is to remove the cable master guides for access and to remove the full vacuum generator and work on it out of the boat. It is much easier to remove the sanitation hoses and pull the vacuum generator out than to get up to their location to change the duckbills. Gives you a chance to do a full rebuild and replace the bellows at the same time. I would not attempt to cut any access ports up top as it probably isn't going to give enough room to work anyway. Just my thoughts, good luck. I'm hoping mine make it through this season and I plan on getting to them next winter. That's some real good info there.... Thanks for sharing. Never thought of removing the vacuum pump, but that sounds like the best option.
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Post by timp4411 on Apr 23, 2021 14:00:08 GMT -5
I changed mine this winter. It is a bit hard to get to them but didn't take me more than an hour or so and less than $100 to do both sides. Im 5'11 180lbs so not overly large. Lower body on engine and upper rested on fuel tank. Keep in mind not to over tighten as they will tear if you do and you'll find yourself crawling around above your fuel tanks again way too soon. Thanks for the info.
I'm also 5'11", but 230 Lbs... so heftier than you.
I have not tried personally, to get on top of the engine to get at the vacuum pump, but the mechanic at the marina essentially said it was impossible.
I have arranged to take the boat to a different marina, who used to be a Regal dealer, who said they can do it without problem.
I have an appointment to take it to them in about 4 weeks.
I'll report on how things go..... AND how much it costs.
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Post by timp4411 on Jul 21, 2021 12:21:04 GMT -5
Sorry it took so long to report back.
I dropped the boat at dealer's marina on a Sunday and got it back the following weekend.
$860 total. I also had him replace Duckbills and the bowl gaskets on the two heads since he was already messing with the nastiness anyway.
Expensive... Yep ! But that's boating.....
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Post by gofast24 on Aug 1, 2021 9:51:35 GMT -5
Had middle son do it once, then a 25 year experienced guy do ours twice, no problem on our 4160! Are you sure it is the duck bills? One of ours was a bad vacuum switch and the other a leaking vacuum bellow!
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Post by bronkobilly on Aug 17, 2021 21:32:31 GMT -5
I have had a problem with my vacuum pumps not shutting off. I have a 2000 4160. I have replaced the bellows and vacuum switch on both units and duck bills on on side. No shut off yet. Plan to replace duck bills on the other unit this weekend. Several duck bills purchased I can see light through although slight amount. Don’t know what the next step can be??? Any suggestions Bill R
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