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Click Here to Order the BMK18 Marine By-Pass Filtration System from the
AMSOIL Online Store
Marine engines, from those found in recreational
watercraft to larger commercial boats, often sit idle in storage for weeks
or months and when put on the water are required to run at full throttle
for extended periods of time. These torturous conditions place tremendous
stress on engines and engine oils. Since clean engine oil is critical for
ensuring proper operation and protection, AMSOIL recommends the use of the
Marine Dual Remote Filtration System (BMK-18).
The AMSOIL Dual Remote and By-Pass filtration
systems have been an integral part of the company's advanced engine protection
product line. Building on the customer-proven success of automotive dual
remote and by-pass filtration technology, the Marine Dual Remote Filtration
System was created to address the specific severe operating environment
of marine engines in both salt and fresh water. For example the hose fittings
are coated with a 3 ml layer of Alumiplate™ and 1 ml of zinc and yellow
chromate. Standard hydraulic fittings typically survive for 96 hours in
the grueling ASTM B-117 Salt Spray Test. When we subjected the Alumiplate™
coated AMSOIL Marine Bypass System fittings to this critical corrosion resistance
test protocol, they lasted over 1,000 hours! This means the Alumiplate™
coating on the fittings of the AMSOIL Marine Bypass Filtration System are
10 times more corrosion resistant than standard zinc and yellow chromate
plated fittings. While this exclusive Alumiplate™ coating process is expensive,
AMSOIL felt this extra margin of system protection was absolutely necessary
to provide marine application customers with extraordinary corrosion resistance
and protection - and the peace of mind that goes with knowing that the AMSOIL
Marine Bypass System is engineered for demanding marine applications. Also,
the fasteners and mounting bracket are stainless steel, and the hose are
U.S. Coast Guard approved.
 The
effects of marine engines running predominantly at or near full throttle
after extended periods of non-activity include high operating temperatures
and increased potential for wear on engine components. The AMSOIL Marine
Dual Remote Filtration System offers a clear advantage by providing better
oil filtration, increased oil capacity, longer oil and filter life, plus
the ability to remove water from the lubrication system. Moisture typically
condenses inside engines to combine with residual combustion gases. The
resulting compounds strip beneficial additives from engine oil and act as
corrosive substances that further degrade the engine oil and promote engine
wear. Humid environments make marine engines especially prone to these conditions.
The BMK-18 greatly curbs the effects of moisture and condensation by safely
retaining water within the filtration system.
Dual remote filtration is a highly efficient
filtering process capable of removing the vast majority of wear causing
particles which are in the 5-20 micron range. It also has the ability to
effectively remove particles down to 1 micron in size. Furthermore, a dual
remote filtration system requires a 1.5 to 2 quart oil volume increase,
with the added oil offering increased cooling capabilities. The additional
hoses, fittings, filters and aluminum mount assemblies also allow the engine
oil to dissipate heat more efficiently as it passes through the filtration
system, extending the service life of both the engine and the engine oil.
 A
large number of marine diesel engines have by-pass oil filtration systems
installed by the engine manufacturer. Until now, however, this technology
has not been available to smaller pleasure boats and light commercial marine
applications.
Depending on the owner's frequency of use,
the improved filtration of the Marine Dual Remote system, along with the
use of AMSOIL's synthetic lubricants, could completely eliminate oil and
filter changes during a typical boating season.
With marine engines located in a relatively
confined and remote space within the watercraft, ease of filter access and
reduced oil spillage are significant benefits of the Marine Dual Remote
System.
The remote mount of the BMK-18 is also
compatible with the new AMS-Oiler™ Oil Precharger (AMK-01)
for added engine protection during the frequent dry starting that is typical
of marine engines that sit idle for even short periods of time.
 The
BMK-18 is packaged in kit form, which includes the Dual filter mount, mounting
hardware, hoses, hose fittings, component parts and installation instructions.
In addition, adapter kits of four different sizes enable the BMK-18 to be
installed on a wide variety of recreational and light commercial marine
engines. The BMK-18 kit offers a new heavy duty, machined aluminum adapter
and retaining nut that fits on the existing oil filter mount. Each adapter
kit is application specific and must be ordered separately. Please consult
BMK-18 Adapter Kit Reference
Guide (G-2051) for specific applications. Adapter kits are available
for the most popular filter thread sizes. When ordering the BMK-18 request
one of the following adapter kits:
- BK-195 for ¾” x 16 thread
- BK-196 for 13/16” x 16 thread
- BK-197 for 18 mm x 1.5 mm
thread
- BK-198 for 20 mm x 1.5 mm
thread
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Also, for ease of installation in some
applications, optional 90 degree fittings (BK-199 and BK-200) can be mounted
on the filter adapter collar. These parts are also sold separately.
The AMSOIL Marine Dual Remote Filtration
System represents the cutting edge of filtration technology-another example
of AMSOIL's commitment to providing quality innovations that can benefit
consumers everywhere.
BMK-18 Adapter Kit Reference
Guide (G-2051) (PDF - 23K)
BP-239 Marine Dual Remote Filtration
System Installation Instructions (PDF - 1.80MB)
BMK-18 Frequently Asked
Questions
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Q.
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Is the principle of
operation of the BMK-18 the same as the BMK-13, BMK-15, BMK-16,
and BMK-17? |
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A.
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Yes, the principle is exactly the same. For a given volume of oil
being filtered at one time, the full flow filter filters approximately
80-85% of the oil, while the by-pass filter filters approximately
15-20% of the oil. |
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Q.
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What are the recommended
applications for the BMK-18? |
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A.
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Gasoline powered inboard and inboard/outboard engines and light-duty
diesel inboard engines. For specific applications consult the AMSOIL
website or the Adapter Kit Application Guide (G-2051). |
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Q.
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Is it necessary to
install marine filters when using the BMK-18? |
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A.
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Marine filters are manufactured with an extra measure of corrosion
resistance, but using a marine filter is not necessary when following
the prescribed filter changes outlined in the BMK-18 instruction
sheet. (BP-239) |
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Q.
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Must I order a separate
adapter fitting when I order a BMK-18? |
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A.
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Yes. A spin on adapter kit must be
ordered that matches your application as found in the Applications
Guide (G-2051). There
are four options:
- BK-195 (3/4" x 16 thread)
- BK-196 (13/16" x 16 thread)
- BK-197 (18 mm x 1.5 thread)
- BK-198 (20 mm x 1.5 thread
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Q.
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Why is the BMK-18
more expensive than the other Dual Remote By-Pass Systems? |
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A.
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The BMK-18 is designed to be installed in harsh marine environments.
The hose fittings are coated with a 3 ml layer of Alumiplate™ and
1 ml of zinc and yellow chromate. Standard hydraulic fittings typically
survive for 96 hours in the grueling ASTM B-117 Salt Spray Test.
When we subjected the Alumiplate™ coated AMSOIL Marine Bypass System
fittings to this critical corrosion resistance test protocol, they
lasted over 1,000 hours! This means the Alumiplate™ coating on the
fittings of the AMSOIL Marine By-Pass Filtration System is 10 times
more corrosion resistant than standard zinc and yellow chromate
plated fittings! While this exclusive Alumiplate™ coating process
is expensive, AMSOIL felt this extra margin of system protection
was absolutely necessary to provide marine application customers
with extraordinary corrosion resistance and protection - and the
peace of mind that goes with knowing that the AMSOIL Marine By-Pass
System is engineered for demanding marine applications. Also, the
fasteners and mounting bracket are stainless steel, and the hoses
are larger diameter stainless steel braided and U.S. Coast Guard
approved. |
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Q.
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Where do I apply the
anti-seize compound that is supplied with the kit? |
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A.
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Apply a small amount on the swivel end of each hose end fitting
and on the adapter retaining nut to avoid seizure. |
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Q.
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Where do I apply the
thread sealant? |
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A.
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On threaded connectors that are mounted to the filter mount assembly
and the spin on adapter. |
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Q.
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Is the entire BMK-18
unit U.S. Coast Guard approved? |
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A.
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No, only the hose is U.S. Coast Guard approved. The other components,
designed for marine environments, are not regulated by the Coast
Guard. |
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Q.
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Can I use the BMK-18
in a vehicle other than a boat? |
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A.
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Yes, you can mount the BMK-18 onto any engine that will accept the
appropriate adapter and where room permits. |
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Q.
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Can I order replacement
parts for the BMK-18? |
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A.
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Yes. Replacement parts are available at this point. However, it
must be ordered through our Superior product center at this time. |
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Q.
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Can I use the AMS-Oiler
with the BMK-18? |
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A.
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Yes. The AMS-Oiler AMK-01 can be mounted directly on the BMK-18.
The AMK-02 can be mounted independently of the by-pass unit through
an engine lubrication port or via teeing off of the oil pressure
sending unit. |
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Q.
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Many salt-water boats
have diesel engines. Does AMSOIL make a by-pass system for them? |
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A.
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The BMK-18 can be used with many of the smaller diesel engines.
As long as you can match the filter thread size with the adapters
available from AMSOIL, the system can be used. |
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Q.
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Does the BMK-18 remove
water from my oil? |
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A.
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The by-pass filter isolates small amounts of moisture and condensation
from the oil stream. |
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Q.
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How does the BMK-18
compare to other marine by-pass systems? |
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A.
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The BMK-18 is unique due to the fact it has individual adapters
for each filter thread size. Also, the AMSOIL Marine By-Pass has
a combination of full flow and by-pass filters in one unit. Most
other by-pass filter units do not have a full flow filter associated
with the unit. |
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Q.
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What filter sizes
come on the BMK-18? How do I know which is best for my application? |
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A.
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The BMK-18 does not come with filters. Depending on clearance available,
AMSOIL recommends either the BE-90, BE-100, and BE-110 By-Pass Filters
and any AMSOIL full flow filter with a ¾" x 16 thread. Preference
would be given to the AMSOIL SDF-15 or the larger SDF-26. To provide
maximum protection, AMSOIL recommends the installation of a filter
that is large as possible for the area available. |
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