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07-31-2014, 11:53 PM
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#21
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Veteran Member
City: California Delta
Vessel Name: Astral Blue
Vessel Model: Bayliner Victoria 2750 Command Bridge
Join Date: Apr 2012
Posts: 71
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I have a Perkins 4.108 with a similar mesh air filter. I had the same concerns. I not only asked several Perkins dealers (Trans Atlantaic Diesel, British Marine, and S&W Diesel) and was told the mesh is sufficient for marine environments; and these engines are rather bullet proof in that dust or small airborne particles won't damage the engine. My mechanic has worked on many of these engines for decades and has never come across a situation where the engine was damaged from something that entered through the mesh. Just make sure the mesh is secure, and you're engine will be happy.
Foley Engines (in MA) offers an aftermarket air filter kit for several older Perkins engines. I personally see no need for it. If air filtration inadequacies were in issue with these engines, it's safe to assume we would be flooded with aftermarket products.
__________________
Ed & Lindsey
California Delta
1977 Bayliner Victoria Astral Blue Repowered with Perkins 4.108 Diesel
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08-01-2014, 06:13 AM
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#22
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Guru
City: Cary, NC
Vessel Name: Skinny Dippin'
Vessel Model: Navigator 4200 Classic
Join Date: Jul 2009
Posts: 5,841
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You know, I wonder if when an aftermarket air filter starts to fill with particulates and the air flow restriction increases, if there is a chance that it could suck the filter element into the motor? It would have to be a pretty cheap-o filter, I guess. Yes, far-fetched and hypothetical for sure (it would have to get pretty bad... I am just speculating), but I have seen a runaway diesel (in a truck shop... not on a boat) and it could probably swallow a phonebook thru the intake if you let it ;-)
__________________
2000 Navigator 4200 Classic
(NOT a trawler)
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08-01-2014, 06:26 AM
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#23
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Guru
City: Cape Cod, MA
Vessel Name: Island Seeker
Vessel Model: Willard 36 Sedan
Join Date: Oct 2007
Posts: 1,306
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Quote:
Originally Posted by Tom.B
You know, I wonder if when an aftermarket air filter starts to fill with particulates and the air flow restriction increases, if there is a chance that it could suck the filter element into the motor? It would have to be a pretty cheap-o filter, I guess. Yes, far-fetched and hypothetical for sure (it would have to get pretty bad... I am just speculating), )
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I'm sure it would if you let it get mostly plugged. I change mine (the shopvac filter) every 3 years and find quite a bit of sand and stuff in it.
No, sand is not good for any engine and a Perkins is no different.
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08-01-2014, 08:50 AM
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#24
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Guru
City: UMR MM283
Vessel Name: Northern Lights II
Vessel Model: Bayliner 3870
Join Date: Jan 2013
Posts: 1,357
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I put K&N filters on my Hinos, because years ago I was sent to a IH class on their diesel engines. Part of the class was about filters and their maintenance, the one thing I remember the instructor told us was "a 1/4 inch hole in a air filter would allow enough dirt into the cylinders to ruin a engine in 8 hours". This was a class geared to excavating equipment and we know how dusty and dirty that environment is. On your oil samples if the chrome is high that is wear from the piston rings, the advice from the sampling company (Caterpillar in my case) is to check the air intake plumbing connections and filters. I consider clean air just as important as clean fuel, just because you can't see the dust doesn't mean it won't do damage over time.
__________________
Ron on Northern Lights II
I don't like making plans for the day because the word "premeditated" gets thrown around in the courtroom.
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08-01-2014, 11:10 AM
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#25
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Guru
City: Cape Cod, MA
Vessel Name: Island Seeker
Vessel Model: Willard 36 Sedan
Join Date: Oct 2007
Posts: 1,306
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No, never a problem with the shopvac filter and yes they do have a hardware cloth reinforcement inside them. Mine is a turbo so maybe flows twice the air of a NA.
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08-01-2014, 11:26 AM
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#26
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Senior Member
City: Erie PA
Vessel Name: Endless Endeavor
Vessel Model: Custom
Join Date: Dec 2012
Posts: 225
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KN air filter has a huge selection of misc air filter I just went online with my measurement and order one. It was easy and painless I have used it for 10 yrs now.
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08-01-2014, 11:27 AM
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#27
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Senior Member
City: Erie PA
Vessel Name: Endless Endeavor
Vessel Model: Custom
Join Date: Dec 2012
Posts: 225
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Air filter Perkins t6.354
Quote:
Originally Posted by funangler
KN air filter has a huge selection of misc air filter I just went online with my measurement and order one. It was easy and painless I have used it for 10 yrs now.
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Is the air walker system worth it? Sorry for shifting the subject slightly just curious.
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08-01-2014, 12:33 PM
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#28
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Guru
City: Cape Cod, MA
Vessel Name: Island Seeker
Vessel Model: Willard 36 Sedan
Join Date: Oct 2007
Posts: 1,306
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Quote:
Originally Posted by funangler
Is the air walker system worth it? Sorry for shifting the subject slightly just curious.
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With an old engine or one that is pushed hard, yes (lots of blowby) but just ending your breather near the filter should be fine for the rest of us. The K&N's are suppost to be oiled anyway.
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08-01-2014, 01:01 PM
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#29
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Guru
City: Upstate,SC
Vessel Name: Shipoopi
Vessel Model: derilic sailboat
Join Date: May 2012
Posts: 2,884
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Something like this is my plan.
__________________
This is my signature line. There are many like it but this one is mine.
What a pain in the transom.
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08-01-2014, 01:18 PM
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#30
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Guru
City: PNW
Vessel Model: 1976 Californian Tricabin LRC
Join Date: May 2011
Posts: 1,860
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Quote:
Originally Posted by Vahevala
A little concerned about the "air filter" on my Perkins t6.354 engine. The filter is actually just a mesh screen that keeps the "nuts and bolts" out as quoted by the engine surveyor at time of purchase. TF!
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Most marine 6.354M's and 6.354T's came from Perkins with just a screen guard and crankcase ventilation nipple. That's all mine had for the first 2,000 hours. I later added paper filters out of concern for the large amount of dust that was blowing onto the boat at my marina, which must surely be getting sucked into the engines. The filters don't seem to collect much dirt, I clean and inspect them annually and I've only changed them twice in 15 years, mainly because they get stained from the oil vapor return line.
__________________
Larry B
Careful . . .I Have a Generator and I'm not afraid to use it !
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08-01-2014, 07:06 PM
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#31
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Guru
City: Cape Cod, MA
Vessel Name: Island Seeker
Vessel Model: Willard 36 Sedan
Join Date: Oct 2007
Posts: 1,306
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Quote:
Originally Posted by ben2go
Something like this is my plan.
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Totally unnecessary unless you are boating in a sand & gravel pit IMO
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08-01-2014, 07:31 PM
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#32
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Enigma
City: Slicker?
Join Date: Oct 2007
Posts: 16,563
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Greetings,
What I've read on off road sites; K&N filters are just a step above chicken wire for filtering efficiency. As mentioned we have what appear to be shop vac foam filters on our Lehmans. If ever faced with dusty conditions I would probably opt for aftermarket paper filters as some of you have.
__________________
RTF
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08-01-2014, 11:58 PM
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#33
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Guru
City: Upstate,SC
Vessel Name: Shipoopi
Vessel Model: derilic sailboat
Join Date: May 2012
Posts: 2,884
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Quote:
Originally Posted by Brooksie
Totally unnecessary unless you are boating in a sand & gravel pit IMO
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Inland lakes for now,and will be in some areas that are prone to dusty conditions.
__________________
This is my signature line. There are many like it but this one is mine.
What a pain in the transom.
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08-02-2014, 07:30 AM
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#34
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Guru
City: UMR MM283
Vessel Name: Northern Lights II
Vessel Model: Bayliner 3870
Join Date: Jan 2013
Posts: 1,357
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Quote:
Originally Posted by ben2go
Inland lakes for now,and will be in some areas that are prone to dusty conditions.
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And rivers are subject to dirty air from farming and yes the sand & gravel pits. I imagine near shore conditions are reasonable similar.
__________________
Ron on Northern Lights II
I don't like making plans for the day because the word "premeditated" gets thrown around in the courtroom.
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08-02-2014, 09:03 AM
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#35
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Guru
City: Cape Cod, MA
Vessel Name: Island Seeker
Vessel Model: Willard 36 Sedan
Join Date: Oct 2007
Posts: 1,306
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Quote:
Originally Posted by RT Firefly
Greetings,
What I've read on off road sites; K&N filters are just a step above chicken wire for filtering efficiency. As mentioned we have what appear to be shop vac foam filters on our Lehmans. If ever faced with dusty conditions I would probably opt for aftermarket paper filters as some of you have.
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I read a similar test which concluded they were crap on many levels compared to pleated paper filters. Restrictive, low capacity, & poor filteration.
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08-02-2014, 09:31 AM
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#36
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TF Site Team
City: Paris,TN
Vessel Name: Slo-Poke
Vessel Model: Jorgensen custom 44
Join Date: Jan 2013
Posts: 3,749
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Quote:
Originally Posted by Pack Mule
This is what I put on mine
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So do I keep it or get rid of it?
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08-02-2014, 11:53 AM
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#37
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Guru
City: Upstate,SC
Vessel Name: Shipoopi
Vessel Model: derilic sailboat
Join Date: May 2012
Posts: 2,884
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Quote:
Originally Posted by River Cruiser
And rivers are subject to dirty air from farming and yes the sand & gravel pits. I imagine near shore conditions are reasonable similar.
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I hadn't thought about those,but yep.They can produce some dust clouds thick enough to choke a horse.
__________________
This is my signature line. There are many like it but this one is mine.
What a pain in the transom.
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