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Old 04-29-2015, 01:04 PM   #21
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This is what I run and if you read the spec on the blower, run time is only for 15 minute

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Old 04-29-2015, 01:17 PM   #22
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Greetings,
Mr. ASD. I run the same only flange mount...
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Old 04-29-2015, 01:21 PM   #23
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These puppies are not cheap and I have 3 of them. The one I am replacing was seems to have bad bearings as it squeels when running.
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Old 04-29-2015, 01:49 PM   #24
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Greetings,
Mr. ASD. Yup, I was somewhat gob smacked when I hit your link. So, I've got mine off and it's a Perko, not a Jabsco and has a cast metal housing (aluminum?) Of course, the first SS fastener I put a screwdriver to in order to split the case turned off in my hand. Soooo....Liquid Wrench and I wait. Probably try a bit of butane torch action as well. I'm going to attempt lubrication before I go the replacement route. NOT a permanent fix but may work until I can save up enough $$ to buy a new one or try to source a replacement motor. If I was home and could source oilite, I could probably make new bearings. Alas, a machine lathe won't quite fit into the ER without removing the washer and dryer...
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Old 04-29-2015, 01:53 PM   #25
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Drill a small hole in center of back of motor and drip in some motor oil. That gets the back bearing. Drill a small hole in the squirrel cage fan disc right near the shaft and drip in some motor oil there. That gets the front bearing. Might be able to lube it without taking it apart.
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Old 04-29-2015, 02:25 PM   #26
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Greetings,
Mr. S. Mind reader huh? That's exactly what I'm going to do but if it's easy to take apart, I'll probably do so just to "take a look" and lube at the same time. You know me, just can't leave well enough alone. Hopefully the bearing hasn't seized onto the shaft yet and as a result is spinning in the bearing housing. Report to follow.
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Old 04-29-2015, 02:52 PM   #27
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There's something wrong here....

JABSCO 12V Marine Blowers | West Marine

Cheaper from WM? The sky is falling....

But wait!
http://www.fisheriessupply.com/jabsc...emount-blowers

http://www.hodgesmarine.com/Jabsco-3...35115-0020.htm
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Old 04-29-2015, 03:53 PM   #28
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Quote:
Originally Posted by O C Diver View Post
Sucking is better than blowing. Pressurizing the engine room may force vapors (odors) to leak into the living spaces through small openings. Better to create a vacuum and have plenty of fresh air access for the engine room.

Ted

We added two radiator fans in addition to the 3 squirrel cage Dayton blowers that pulled out and for a little while we ran with the rad blowers pulling in but they put touch pressure Into the ER and smells made they're way into the ER. We now switched one to pull out and I'm curious to see if makes the smell go away.
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Old 04-29-2015, 04:36 PM   #29
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Quote:
Originally Posted by dhmeissner View Post
Careful... Careful...
There are two versions of these... need to compare apples & apples.

Note the HEAVY DUTY version spec states:

Heavy Duty Blowers are designed for applications such as commercial or high use engine room ventilation and extraction where a long life requirement demands heavy duty motors with long brush life.
Built to provide the same high outputs as our standard specification blowers.
■ 5,000 hr motor life for the heaviest of applications.
■ Continuous duty.


I didn't see a motor duty cycle spec for the "Std Duty" model?

Note also - ABYC H-02 states:

2.6.3 Powered Ventilation System
2.6.3.1 Blowers
2.6.3.1.1 Blowers shall be rated for continuous operation at 120% of nominal voltage.
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Old 04-29-2015, 05:03 PM   #30
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Thanks for that Bacchus! Snipped for the link @ Fisheries the product description is thus:

<snip>
Flange mount blowers are generally mounted with the flanged discharge port fastened directly to a flat external surface to minimize required ducting. The inlet port can then be connected with duct hose to the area requiring ventilation.
Length is the dimension along the fan motor axis (C in the diagram)
Ignition protected - DC voltage models comply with USCG regulation 183.410 and ISO 8846 MARINE, as well as ISO 9097 MARINE
DC motors also comply with BSEN 50081-2 for suppression of elector-magnetic interference, and are CE marked
AC models are not ignition protected
</snip>
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