Amsoil Bypass system installed, need help with engine noise!

[TBland]

Just joined TDR after I recently bought my first CTD, an '03 SLT 2500 Quad Cab and so far, this is a great resource.



OK, so I have been running AMSOIL 15-40 for the past two oil changes and decided to try their bypass system for '03 and older trucks (BMK-15Ea). This system is a dual remote filter with one bypass and one full flow using a spin on adapter where the existing full flow filter was.



Well, I got the system installed and plumed, spent extra time checking my hose routing and ensuring a secure installation. I filled both filters, topped up the crankcase and immediately upon start-up I had a whine/drone from the engine noticeable mostly from the vacinity of the passenger side floorboard. I didn't spend much time with it running, as i really don't know what this is. Could excessive backpressure in the system from the additional filter cause the oil pump to cavitate?? There are no other symptoms, the engine ran fine with normal oil pressure. As you can imagine, I am extremely concerned and would appreciate any help you can offer. At this point, since I use the truck extensively for work, I think I will be removing the system tomorrow and hope that no dammage has been done!!??

 

[RMalone]

Sounds dumb but are you sure the bypass manifold is flowing the right direction? I don't think you would have hurt anything since most of the oil is going right around the bypass and you have oil pressure. Just a thought.

 

[amsoilman]

Just joined TDR after I recently bought my first CTD, an '03 SLT 2500 Quad Cab and so far, this is a great resource.



OK, so I have been running AMSOIL 15-40 for the past two oil changes and decided to try their bypass system for '03 and older trucks (BMK-15Ea). This system is a dual remote filter with one bypass and one full flow using a spin on adapter where the existing full flow filter was.



Well, I got the system installed and plumed, spent extra time checking my hose routing and ensuring a secure installation. I filled both filters, topped up the crankcase and immediately upon start-up I had a whine/drone from the engine noticeable mostly from the vacinity of the passenger side floorboard. I didn't spend much time with it running, as i really don't know what this is. Could excessive backpressure in the system from the additional filter cause the oil pump to cavitate?? There are no other symptoms, the engine ran fine with normal oil pressure. As you can imagine, I am extremely concerned and would appreciate any help you can offer. At this point, since I use the truck extensively for work, I think I will be removing the system tomorrow and hope that no dammage has been done!!??

As long as it is connected correctly you are OK. This drone you are hearing is fairly common on these trucks, particularly if you have the unit mounted on the sheet metal of the truck. this is due to the oil flowing thru the hoses and in and around the check valve within the mount itself. These Cummins oil pumps put out allot of volume!

I always recommend the BMK-11 (single-remote) due to this problem. Very little flow thru the lines, and very low pressure differential between the inlet and the outlet, as opposed to the two BIG lines you have on the BMK-15.



Wayne

amsoilman

 

[TBland]

thank you for the replies. Yes, the hoses were connected correctly as I must have checked that at least 5 different times. I have the system mounted on the firewall behind the battery on the passenger side and it does make sense that the noise is related to oil flow. I wish I had known about this before as it took a fair amount of fabrication to fit the system where it is. If this noise truly is normal, I don't think I will be able to deal with it as it is almost as loud as the engine inside the cab. After all, I like the sound of the cummins.



Live and learn I guess, thanks again for the help



Tim

 

[TBland]

Well, I guess I didn't realize just how common this problem was. I did some more searching and found numerous people with this same issue. The best solution seems to be to try and insulate the filter head in some manner. Thanks again for the help



Tim

 

[amsoilman]

Well, I guess I didn't realize just how common this problem was. I did some more searching and found numerous people with this same issue. The best solution seems to be to try and insulate the filter head in some manner. Thanks again for the help



Tim

Tim,

I have seen some folks that have installed a flat piece of rubber behind the remote mount, which will help.



I used to install the mount on the cross member under the radiator, but that was on the old 2nd gen trucks. Don't know if the 3rd gen trucks have enough room for that.



Wayne

amsoilman

 

[p-Bar]

Tim,

A fellow TDR member makes a bracket that mounts to the motor . It works very nice ,no noise. P. M. me your email I will send you pics of mine.



Don



P. M. means to click my name and send me a private message (I see your new)

 

[Buffalo]

I've heard that the "engine mount" that p-bar mentioned works well. Member "LightmanE-300" has one on his truck & as I recall, really likes it.



Good Luck with your fix.



Unfortunately, it pays to thoroughly research everything you do to these trucks (and everything else, also). Unless there's something else improperly engineered in that dual bypass system, I don't know why they will not build an engine mounting system, like one of our members did? His system seems to work.



Another Amsoil Dealer came up with a beautifully designed & manufactured mounting bracket for the Duramaxes. My buddy bought one & was impressed.



Joe F. (Buffalo)

 

[TBland]

Thanks for the replies, I think relocating the filter housing is probably the best option. I would think an engine mounted setup would solve the problem as it would be using the engine mounts for isolation (just like it was stock). Great ideas--thanks





Tim

 

[p-Bar]

Hey guys,

Heres John"s website ,just click on the products button and you will see it. Sometimes he is traveling so you may not get a quick response .



http://www.tricountymachine.com/

 

[TBland]

Don,



Thanks for the information, this may be exactly what I need



Tim

 

[lmills]

Tim,

A fellow TDR member makes a bracket that mounts to the motor . It works very nice ,no noise. P. M. me your email I will send you pics of mine.



Don



P. M. means to click my name and send me a private message (I see your new)

A fellow TDR meber and he can't even spell Cummins correct. Under his pic of the 3 different adapters he has one for a "Cummings" :-laf

 

[p-Bar]

Imills look at the 4th word in your response and tell me if that is spelled correctly. My brother can't spell well and he probably makes more money than you and me put together.

 

[lmills]

OOOhhh. I forgot to use spell check, but then again, I am not trying to sell parts for cummings engines either. :-laf



BTW- since you want to get picky. it's "L"mills not "I" :-laf

 

[y-knot]

Not that long ago I installed a Amsoil dual by-pass filter assembly W/pre-lub, on my truck. I have an aftermarket front bumper, so I mounted the filter mount behind it, there is plenty of room and it makes changing filters a snap. I had to insulate the filter mount from the bumper, and I also had to insure the lines were insulated from the body sheetmetal, and any other thing that might come into contact with them. This required cutting a rather large hole up front by the head light assembly, lining it with an insulating material for vibration and to insure the lines would not get cut, and making sure the lines are routed right.

Why the strong vibrations? They come straight from the oil pump, which is mounted to the inside of the engine, and it transfers all the vibrations and noise. Mountings have to be strong and lines well routed, as they change once the high pressure oil is pumped through them, just be ready. Also, make sure you treat this project with the respect it deserves, you are re-directing the engines entire oil supply, so nothing but the best should be used with regard to hoses and mounting hardware.

 

[JPereira]

I mounted mine under the rear bed on the passenger side. Very easy to change filters. Have had them there for about 40k without any problems. I did this because of all the problems I had heard others having regarding the pump/oil noises.



Jeff