Small engine blower motor

J

JohnB40

.
Nov 6, 2011
19
beneteau 40 Victoria
Hi
Have a Beneteau 40, 4JH4AE Yanmar.
There is a Plastimo air blower on the transom to extract hot air from engine compartment. Stopped working. Took apart and see the small 4 amp motor is labelled Von Weise, made in Canada, 2807-506-006. Motor is fried. Rather than pay about $300 for blower replacement I would like to replace just motor which seems to cost about US$50 ... if you can find it. I have found a motor that has same measurements (Kysor 2807-506-032) but that is apparently not quite right as is two speed ... that one is US$50.
Has anyone any idea where I can find this motor ... I've searched the web but I'm not very good at that ... sort of a dinosaur!!!
Cheers
JohnB40
 
Mechone

Mechone

.
Mar 20, 2016
595
Beneteau 351 WYC Whitby
I would just buy that one ,looks like it can be wired for slow or high speed by the wires , if you wired a switch you could select low or high speed .
 
Gunni

Gunni

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Mar 16, 2010
5,937
Beneteau 411 Oceanis Annapolis
Way too expensive, keep shopping. Those yankee dollars should get you the entire unit, not just the motor.
 
smokey73

smokey73

.
Oct 26, 2010
2,148
Hunter 40.5 Beaufort, SC
Is it an inline blower of 3" or 4" size? If so, why can't you buy another complete unit from any manufacturer and just install that. I'm not familiar with your boat or this blower but just a question.
 
BigEasy

BigEasy

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Jun 21, 2004
2,916
Beneteau 343 Slidell, LA
Check the Beneteau spare parts website. You may find a suitable replacement there. Also Defender is having a sale now for the upcoming Annapolis boat show.
 
J

JohnB40

.
Nov 6, 2011
19
beneteau 40 Victoria
Thanks for comments. It's not an inline blower. It's attached to the transom in an incredibly hard place to reach and is neither 3 nor 4 inch .... 70mm which is about 2 3/4 inch, good old Beneteau!!
Re Mechone's comment: the picture of the Kysor motor shows only two wires ... the fried Von Weise motor I took out also has just two similar looking wires and presume is just one speed ... the two wires are one +ve and one -ve. Wouldn't a two speed need 3 wires coming out of it ... that sort of confused me with the picture shown.
Re NYSail: the $300 is Canadian and is from the Beneteau US website for that blower. The "fan" part is not like a propeller but a squirrel cage, I guess I could try to replace with 3 inch inline ,,, you would think I wouldn't have to change the air hose ... must be some way I can join a bit of 3 inch hose to 70 mm?
Cheers
JohnB40
 
NYSail

NYSail

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Jan 6, 2006
3,145
Beneteau 423 Mt. Sinai, NY
When dealing with my new to me Beneteau (or any other boat) I alter the manufacturers set up whenever I see a better way of doing things.. I would swap out the blower for the less expensive probably more efficient one. Sure you can make the hose fit With some creative cutting and sleeving or just replace hose as well.

Good luck!
Greg
 
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Parsons

Parsons

.
Jul 12, 2011
1,165
Leopard 40 Jupiter, Florida
Like @NYSail said, adapt their “unique” design to what you can do now. By the way, duct tape got it’s name for a good reason. This is a low pressure tubing, so just tape it together.
 
jssailem

jssailem

SBO Weather and Forecasting Forum Jim & John
Oct 22, 2014
23,179
CAL 35 Cruiser #21 moored EVERETT WA
@JohnB40 you are discussing one of my favorite subjects. How do I address a repair issue with my brand name boat.
You have really two paths.
  1. you can buy into the Branding myth and purchase your parts from the manufacturer’s store, usually at some cost that feels exorbitant. So that you maintain your boat in an imagined pure state, true to OME original manufacturer equipment.
  2. Or you recognize that the OME was bought by a purchaser who was negotiating a buy of many units. Their decision was influenced by many factors, some likely having nothing to do with the quality or best use on your boat.
It is not like you are restoring a classic that you are trying to maintain in original or near original condition to raise the imagined value in some future boat buyer.
You are faced with a air blower motor problem. It needs to have electrical power. It needs to effectively move air from point a to point b. It is relatively inaccessible and as such will not be valued by future buyers of the boat or even written up in a future survey as long as it works when inspected.

So looking at the problem with different lenses, find from any reasonable shop, a motor with a squirrel cage fan attached or a similar shaped motor that will fit in the place of the one being removed. At considerable less money than an OME motor and replace it. The duct work is 70mm. You need the squirrel cage fitting to be 70 mm or nearly the same. You need to join the two together. There are coupling sleeves sold at heating /ventilation companies likely in your community that can be used to connect two hoses/ducts. Or you can get metal tape, like duct tape but designed for ventilation repair that will give your repair a solid feel and look.

You’ll be avoiding project creep (the problem of turning a simple repair into a major issue) and be back sailing where you should be.
 
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Ron20324

Ron20324

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Jan 22, 2008
8,050
Beneteau 323 Annapolis MD
JohnB40 said:
...3 nor 4 inch .... 70mm which is about 2 3/4 inch, good old Beneteau!!...must be some way I can join a bit of 3 inch hose to 70 mm?
Click to expand
Works shop fixed-vacuum piping has a number adaptors, as do ShopVacs. PVC adaptors?
 
Parsons

Parsons

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Jul 12, 2011
1,165
Leopard 40 Jupiter, Florida
Speaking of these engine room ventilation fans, there have been many forum discussions, but little resolution, on their usefulness. I've always been told they were for heat reduction, but the great majority of an engine's heat dissipation is through the water jacket cooling, not air on the surface. The only thing at risk in a hot engine room is the diodes in your alternator, or any other micro electronics you have installed in there. When I bought my boat, the intakes of the exhaust vent was at the base of the engine, near the transmission - the absolutely coolest place in the engine compartment. I suspiciously thought that the reason for the installation was to comply with some state law that required bilge blowers for inboard engines, as that was the perfect place to exhaust gasoline fumes (lowest point). I moved my exhaust hose higher in the compartment, and right behind the alternator. If it's going to run for heat dissipation, it might as well suck from the right spot. In older sailboats, diesel engines did not even have these little fans, so what's the thought now?
 
SG

SG

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Feb 11, 2017
1,670
J/Boat J/160 Annapolis
Why don't you just wire it to the high speed side of the two speed motor?

Alternatively, just bipass the fan (by removing it) and put-in an inline fan?
 
Gunni

Gunni

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Mar 16, 2010
5,937
Beneteau 411 Oceanis Annapolis
The 70mm Beneteau vent hose will fit the 3”, it is elastic.
 
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