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04-21-2017, 08:12 PM
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#1
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Guru
City: Full Time Cruising East Coast
Vessel Name: Meridian
Vessel Model: Krogen-42
Join Date: Aug 2011
Posts: 1,014
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Lehman 90/135 Air Filter Alternative
Any alternatives for the foam filters? I've looked at the shop vac filters but I can only find 6" diameter and I need 8".
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Terry
Meridian
KK-42097
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04-21-2017, 09:21 PM
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#2
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Guru
City: Brookline, NH
Vessel Name: Shalloway
Vessel Model: Defever 44, twin Perkins
Join Date: Sep 2013
Posts: 2,259
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I've wondered the same thing. They're not much of a filter at 1/2" thick and maybe 60 pore - really just keep loose objects out. The foam is easily obtained so one could make their own. If you want to change the filter to something different there are round auto air filters about the right size. I adapted such a filter to a small stationary diesel I have. Try perusing the air filters at your local auto store.
Ken
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04-21-2017, 09:47 PM
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#3
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Dauntless Award
City: Wrangell, Alaska
Vessel Name: Dauntless
Vessel Model: Kadey Krogen 42 - 148
Join Date: Jan 2013
Posts: 2,820
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what's your objective?
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04-22-2017, 12:27 AM
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#4
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Guru
City: Gibsons, B.C., Canada
Vessel Name: Island Pride
Vessel Model: Palmer 32'
Join Date: Oct 2007
Posts: 4,409
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K & N air filters would be a good alternative. They do need to be oiled to be properly effective and cleaned periodically but they would be a good replacement.
There are others but this is one I used for my different engine which did not have a filter at all, just a silencer with holes that would stop only birds larger than hummers.
Do not even consider a shop vac filter. Maybe it will be ok but if not the engine could eat it likely causing engine damage.
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04-22-2017, 06:34 AM
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#5
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Guru
City: Quebec
Vessel Name: Bleuvet
Vessel Model: Custom Built
Join Date: Jan 2016
Posts: 4,374
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Look at K&N website, they have all kind of filters, pretty sure you will find one that fits. I found one for my unusual never seen engine.
L.
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04-22-2017, 08:36 AM
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#7
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Guru
City: Full Time Cruising East Coast
Vessel Name: Meridian
Vessel Model: Krogen-42
Join Date: Aug 2011
Posts: 1,014
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Lehman 90/135 Air Filter Alternative
Objective is to go cheap
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Terry
Meridian
KK-42097
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04-22-2017, 09:34 AM
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#8
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Enigma
City: Slicker?
Join Date: Oct 2007
Posts: 16,541
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Greetings,
Mr. m. The vast majority of ER's are not particularity dusty environments so why not stick with what you already have unless what was originally there is missing in which case, replace with original.
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RTF
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04-26-2017, 02:14 PM
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#9
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Guru
City: Full Time Cruising East Coast
Vessel Name: Meridian
Vessel Model: Krogen-42
Join Date: Aug 2011
Posts: 1,014
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NAPA Gold 6071 can be cut into four filters. They are about 1" too long but can be trimmed to fit. $13.
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Terry
Meridian
KK-42097
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05-14-2017, 01:48 PM
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#10
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Veteran Member
City: Valdez, Alaska
Vessel Name: M/V Infinity
Vessel Model: Universal Litton 36
Join Date: Oct 2013
Posts: 31
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Good tip on the Napa 6071.
None in stock in AK, but I did find one on Amazon they might send me.
Anyone know what the size and filter options might be for the older 120 Lehman with the air filter below the intake? Is it the same size? (My boat is 700 miles away from me at the moment)
Also found these on Amazon:
https://www.amazon.com/Uni-Filter-65...ir+filter+foam
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10-25-2017, 12:09 AM
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#11
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Guru
City: Port Townsend
Vessel Name: The Promise
Vessel Model: Roughwater 35
Join Date: Sep 2012
Posts: 1,569
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Reviving this, is this product for real?
Walker Engineering - Home
Asking because I’m interested in the chain it can reduce noise. Anyone use one on a FL120?
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10-25-2017, 01:04 AM
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#12
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Guru
City: Gibsons, B.C., Canada
Vessel Name: Island Pride
Vessel Model: Palmer 32'
Join Date: Oct 2007
Posts: 4,409
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Quote:
Originally Posted by dhmeissner
Reviving this, is this product for real?
Walker Engineering - Home
Asking because I’m interested in the chain it can reduce noise. Anyone use one on a FL120?
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Nope, neither used one nor do I have the Lehman.
I can tell you though when I did mine with the K & N's the air intake suction noise did increase. Not horribly so but noticeable.
Ever run a car engine with the filter off? That suction noise can be quite loud. A filter or in my case a noise box will control that noise, a lot.
I thought dirt control was more important and they do collect dirt and other debris.
Whether the Walker will do enough I cannot say but they are used on many turbo engines and those things can howl.
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10-25-2017, 01:54 AM
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#13
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Guru
City: Pender Harbour, BC
Vessel Name: Gwaii Haanas
Vessel Model: Custom Aluminum 52
Join Date: Sep 2013
Posts: 3,791
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https://www.donaldson.com/en-us/engi...ts/air-intake/
I have one on my Cummins. Might find something here.
__________________
Don't believe everything that you think.
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10-25-2017, 07:06 AM
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#14
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Technical Guru
City: Wilmington, NC
Vessel Name: Louisa
Vessel Model: Custom Built 38
Join Date: Jan 2014
Posts: 6,194
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Depending on how y'alls engine rooms are laid out, Donaldson remote mount air filter/silencers from tractors/excavators are really nice packages. But it needs to be mounted away from engine and intake plumbed to the unit. I've done several generators using bobcat units and it absolutely kills the intake noise. Might be a plumbing mess to do on a Lehman, but throwing the idea out there.
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11-10-2017, 11:54 AM
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#15
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Senior Member
City: Essex, Ct.
Vessel Name: Harmony
Vessel Model: 1982 41' President
Join Date: May 2013
Posts: 436
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I looked into the Walker Engineering Airsep filter. I also have the FL120's. The price was $625 each. Yikes, I can spend my money on sillier things than that.
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Tom
"Harmony"
1982 41' President
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11-10-2017, 01:30 PM
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#16
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Guru
Join Date: Jun 2008
Posts: 5,034
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I use a foam shop vac filter. Fits like a glove. This was a recommendation several years ago, perhaps a thread on this forum.
Anyway, cheap and works.
__________________
Jay Leonard
Ex boats: 1983 40 Albin trunk cabin, 1978 Mainship 34 Model 1
New Port Richey, Fl
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11-10-2017, 03:24 PM
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#17
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Veteran Member
Join Date: Sep 2011
Posts: 82
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same as jay
+1
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