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14-08-2015, 10:02
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#1
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Registered User
Join Date: Mar 2014
Location: Montana
Boat: 1979 Pearson 323
Posts: 58
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Impeller Cover Screw (Volvo MD2030)
Hi all!
I am trying to replace some screws that are ruined on my impeller cover. Can't seem to find them online so I was going to try my local Fasteners and cross my fingers that they have something. The screws appear to be bronze.
Can anyone confirm that these screws are bronze?
Thanks in advance for the help! I don't want to end up with the wrong type and have them seize up!
Jeff
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14-08-2015, 10:49
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#2
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Registered User
Join Date: Jan 2014
Location: Martinique
Boat: Fortuna Island Spirit 40
Posts: 2,298
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Re: Impeller Cover Screw (Volvo MD2030)
I would love to see an answer for this. I am in the same boat and last time I posted this I got 20 responses to just buy a SpeadSeal cover.
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14-08-2015, 15:50
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#3
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Registered User
Join Date: Dec 2010
Location: W Carib
Boat: Wildcat 35, Hobie 33
Posts: 13,480
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Re: Impeller Cover Screw (Volvo MD2030)
You can get them from any Volvo distributor. Expensive of course for what they are, but still in total not much. Try WWW.marinepartsexpress.com.
Good practice to always keep a few spares on hand.
It is a Johnson pump. Johson wont sell you the pump, but may sell you compatible screws...they are the same for many models.
Or, find a good industrial screws shop...they will likely have something compatible.
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14-08-2015, 16:15
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#4
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Moderator and Certifiable Refitter
Join Date: Jan 2008
Location: South of 43 S, Australia
Boat: C.L.O.D.
Posts: 20,301
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Re: Impeller Cover Screw (Volvo MD2030)
My Johnson pump uses metric screws and IIRC, they were M4 and I think the pitch was 0.5. regardless they were "common" M4 threads.
Local nuts and bolts retailer had them in brass or stainless but not bronze which I think is what Johnson uses.
__________________
All men dream: but not equally. Those who dream by night in the dusty recesses of their minds wake in the day to find it was vanity: but the dreamers of the day are dangereous men, for they may act their dreams with open eyes, to make it possible. T.E. Lawrence
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14-08-2015, 16:16
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#5
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Moderator and Certifiable Refitter
Join Date: Jan 2008
Location: South of 43 S, Australia
Boat: C.L.O.D.
Posts: 20,301
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Re: Impeller Cover Screw (Volvo MD2030)
You might find the Jonson model number underneath the Volo paint on the impeller cover plate. Armed with that, the process becomes easier
__________________
All men dream: but not equally. Those who dream by night in the dusty recesses of their minds wake in the day to find it was vanity: but the dreamers of the day are dangereous men, for they may act their dreams with open eyes, to make it possible. T.E. Lawrence
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14-08-2015, 16:44
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#6
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Registered User
Join Date: Mar 2014
Location: Montana
Boat: 1979 Pearson 323
Posts: 58
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Re: Impeller Cover Screw (Volvo MD2030)
Thanks for the help. I'll dig into those resources. Of course local shops came up nil. Bought some stainless ones for spares just in case. Unfortunately, the boat is on the other side of the country now...makes everything more difficult.
Looked into the Speedseal as well. Not too expensive and would be handy. I'll have to do some more research before I decide!
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14-08-2015, 18:36
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#7
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Registered User
Join Date: Nov 2014
Posts: 1,613
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Re: Impeller Cover Screw (Volvo MD2030)
Johnson uses a simple brass screw, that's why they're always breaking. Replace them with stainless and be done with it.
DougR
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14-08-2015, 19:24
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#8
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Marine Service Provider
Join Date: Sep 2014
Location: Auckland, NZ
Boat: Compass 790 , 7.9 metres or 26 ft
Posts: 2,803
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Re: Impeller Cover Screw (Volvo MD2030)
Stainless is fine. I have been using them on Johnson pumps for 30+ years. Try Lowes dont bother with genuine. 316 ss best but 304 is ok
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14-08-2015, 19:33
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#9
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Registered User
Join Date: Mar 2014
Location: Montana
Boat: 1979 Pearson 323
Posts: 58
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Re: Impeller Cover Screw (Volvo MD2030)
Great to hear. I wasn't sure if the two different metals work react poorly. If stainless will work I'm all over it. Thanks!!
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15-08-2015, 07:56
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#10
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Registered User
Join Date: Jul 2008
Location: Satellite Beach, FL
Boat: Brewer 44' Steel
Posts: 393
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Re: Impeller Cover Screw (Volvo MD2030)
SpeeedSeal apparently has had "issues", read problems according to my Yanmar Guy. My Yanmar has SS screws an d YES have a complete spare set. Switch to SS if you can , Bronze wayy too soft. Russ
__________________
Russ
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15-08-2015, 10:01
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#11
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Registered User
Join Date: Jul 2011
Location: Flagler Beach FL
Boat: Hughes Sparkmen Stevens 38'
Posts: 26
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Re: Impeller Cover Screw (Volvo MD2030)
i have used stainless screws on my Volvo water pump for years and have no problem them as lone as you anti-size on them
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15-08-2015, 10:52
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#12
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Registered User
Join Date: Mar 2014
Location: Montana
Boat: 1979 Pearson 323
Posts: 58
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Re: Impeller Cover Screw (Volvo MD2030)
Great! I like it when projects get easier and less expensive...SS it is!
Thanks for the help
Jeff
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15-08-2015, 11:12
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#13
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Registered User
Join Date: Oct 2014
Location: Bay of Fundy,Grand Manan,N.B.,Canada N44.40 W66.50
Boat: Mascot 28 pilothouse motorsailer 28ft
Posts: 3,217
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Re: Impeller Cover Screw (Volvo MD2030)
__________________
My personal experience & humble opinions-feel free to ignore both
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16-08-2015, 13:16
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#14
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Registered User
Join Date: Jun 2013
Location: Bellingham, WA
Boat: Bruce Roberts 44' Steel Mauritius
Posts: 919
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Re: Impeller Cover Screw (Volvo MD2030)
Love Speedseal. Have put some hours on it. Would like to know problems. My experience with many impeller covers is to bite the bullet and use the specified screws even though they can be ridiculously expensive.
Love the guy at Speedseal. Call him.
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16-08-2015, 18:01
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#15
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Registered User
Join Date: Jan 2010
Location: Portland, Oregon, USA
Boat: 31' Cape George Cutter
Posts: 3,270
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Re: Impeller Cover Screw (Volvo MD2030)
I recommend using M4 hex head SS machine screws. It is much easier to remove a hex head with a hex nut driver or socket set than a slotted or Philips head screw.
Greg
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