Amsoil bypass filter
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I've been wondering the same thing!!
I am wanting to install a by pass kit, Amsol doesnt sell a designated kit, They have a universal klt and a single filter kit but they dont say how or where to hook up the oil out put line due to our different oil filter housing. Also they dont include the filter which costs an additional $50. I emailed them but received no reply. I have found only one company that makes a designted kit.but it costs over $500.I may wind up going that route despite the cost rather than trying to modify someones existing kit. A vendor told me that i could hook up an output line if i put a "T" fitting at the oil pressure sensor location but i haven't verified that yet. then i would still have to figure out the rest. I could drill a hole in the stock fillerb cap and tap for a fitting for the return line but have to figure out mounting brackets and locations ect. Anybody else having info on this stuff please share. Thanks
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Might see if you can get a hand on the installation instructions from the $500 kit to see where they tap in for the pressure line.
I wanted to do that as i thot maybe they would reveal the location. Their kit (insane diesel) is supposed to have every little thing needed to do the install. I think they have a propritary filter which may be an issue for future changes. I have no idea of what else i would need using another companies kit and Amsol looks to be just two hoses of unknown length and the fixture to screw the filter onto, Im thinking by the time i source everything i would need, the cost would come pretty close to the $500 kit. .I dont know what they charge to ship but the ebay kit is free shipping. Sometimes it is better to pay a little more and make the project more accurate and easier. The dodge kit on ebay is almost $300 and it uses the Amsol filter which is included,.so i would likely need the proper return cap or elbo and hopefully the hoses would be long enough leaving me to fabricate a mounting bracket and find the correct t fitting or connection. I am guessing a total of about $400 or so. So there is potential for saving some cash, I really need to see where the pressure sender is located on my truck and how i can connect a hose with about 1/2 in id will connect to it. Hopefully a visit to lowes plumbing dept will produce a brass fitting or two that will work. I also decided to go with the german Pro Vent oil catch can as it has proved to be much more efficient than the alum ones. It does present some install issues as the only company I can find so far that sells one with an install kit is located in Austrailia. I can get the main part off ebay for about $30 but nobody i can find so far sells the install kit. The Aussie kit is $285 us but shipping is about $70. I think i will be making my own bracket and getting hoses for it and saving over $200. I had never planned to do any of this until i read up on the benifits of doing the two mods. Other than an aftermarket air filter I havent done or thot of much else for the truck except i would like to look into the add on step plates for the rock sliders. I am glad i didnt lift the truck Im getting old and dont bend as well as i used to.
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175 Posts
Normally I'd say the oil sender is an 1/8" NPT but being I believe the engine has it's origin in Italy it's possible it's some sort of metric pipe. If you knew the size I'm sure you could buy it thru McMaster-Carr for less than $100. As for hose size, you should not need 1/2" ID unless you are planning to use the hose as extra capacity. There should be a restrictor pre-filter or pre fill cap. If you allowed full pressure to come from the oil sender port you'd most likely effect main-line oil pressure or require the pump to work at capacity. I believe the idea of the bypass is to redirect a small amount of oil thru the extra filter which will give you not only extra fine filtering for a small amount of oil at a time but add an extra quart of capacity. I'd think with the extra fine filter you would need full oil pressure to push enough oil thru the filter to make it effective. With all the media surface area in the filter I doubt the extra fine filtering would produce enough back pressure on it's own without a restrictor so not to effect main line oil pressure.
Yes I agree, I read about the information stating that only a small amount of oil compared to what goes thru the truck filter is rerouted to the by pass. From what i have read also the bypass filters all have an reduced passage for the oil to go thru to control the volume of oil.. One the things i like about the Provent version is it also has a built in feature to control vacume and pressure from the engine which none of the usual catch cans have. I dont really understand all of that completely but they make it sound like its something that is needed to make the can function better. The site with the kit gives the size of the T fitting. Looks like the out put is 1/8 in npt. I wonder if thats big enough but since it is under engine oil pressure it probly is. More research is needed.
also the company that makes the designated kit uses the Mcmaster-Carr t fitting. Ill look on line to see who sells them and see what they have. I think i will purchase the by-pass kit off ebay from the vendor who has the kit for the cummings dodge. It should have everything i need except the T fitting. and maybe ill get lucky and the hoses will be long enough. The price is about half that of the designated kit in which has the toilet paper type filter which im not fond of. It has the cap for the fill spout with the L fitting and even if the cap wont fit my colorado i can pirate the L fitting and adapt it to my stock fill cap for the return line. .It also comes with the Amsol filter so i wouldnt have to buy one of those separately. I will have to fabricate the mounting bracket anyway,but that should be fairly easy once i find a place to install it on my truck. If i have to get a longer supply hose i should be able to do that as well or just find a shorter piece to add in to the longer one. The photo from the ebay vendor shows the filter being installed horizontal which may give me more options for location. Not a lot of room under the hood in my lil truck.
Me again, I heard back from Mcmaster-Carr, they said they didnt have anything to match my "T" fitting request. I went to a link they gave me from their catalog. Anything with a 12m size had a 1.5 pitch no 1.7 pitch. I wonder if the kit seller bought npt and retapped and recut the threads in and out, The 1/8 npt outlet probley would connect with the dodge hoses or with an adapter or nib. I dont know if there is such a metric thread as 1.7 pitch. If there is i bet they cut their own t fitting. I went under the hood and couldnt even see anything that looked like a pressure sender that and i dont really know what it looks like anyway. I am ordering a copy of the factory service manual off ebay. they come CD or USB. In the past i used to get a Helms Manual, The price now is $350-400!! for year specific. Last set i bought was still paper book format for $100. The digital copies off ebay are $16-$25. I need it to see where everything is anyway. In my search under the hood i just realized the turbo is water cooled. NO alum intercooler to worry about. Thats pretty neat. This truck continues to amaze me.
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If you're talking about the 2.8 (I think you are but not sure) there is an inter-cooler to cool the charge air and yes the turbo also has a coolant line as well.
yup the Helm manual price is getting out of control.
Yes its the 2.8. When i looked i didnt see the normal (?) looking intercooler. Its hard to find anything in there as its so crowded. This is another reason why i am ordering the copy of the manual. I only waited as it always takes a few years to be able to get the affordable copies. I like to see the diagrams and photos when i am looking for the first time. Helms kinda cornered the market on the manuals. When i bought a new vehicle there used to be a form in the owners manual for ordering the books from Helms. They dont even do that anymore. I dont even think you can get manuals from the dealer either. I asked once and they said to contat Helms. I am not gonna pay $350 for a digital Helms when i can get the same thing off ebay for $16 on a USB stick, I guess somehow the manual isnt copyrighted or something. I am glad for that. The truck is pretty complicated for home repair. I am pissed because i cant event check my trans fluid due to No dipstick. maybe the computer is keeping track but i still like to check things myself. I am slowly becoming a dinosar i guess
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714 Posts
It does suck that these vehicles are becoming so complicated that the owner can't repair them anymore.
I added an aftermarket dipstick (Lokar) for the transmission. It pisses me off, you buy a truck for towing and in the owners manual they say you should check the fluid lever prior to towing yet they don't put a dipstick in to allow you to be able to actually check it. Nothing in the vehicle tells you anything about the trans fluid so keep an eye it it. They expect you slide under the truck, pull the plug (on the passenger side of the trans) and put you finger in the hole to see if the fluid is near the top of the plug hole.
The manual it copyrighted but like all things it has been hacked and put on ebay. Buy it when you can because ebay has closed down people selling them. They pop up under a new name until they get closed down again, rinse and repeat.
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714 Posts
Lokar XTD-36L80FM36 Lokar Hi-Tech Flexible Braided Stainless Transmission Dipsticks | Summit Racing
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in case you're interested
you may find it cheaper but make sure it's the 36" version. Usually the cheaper version is the shorter one and it's too short for our trucks.
Thanks for the info on the trans dipstik. i want to look at that for a future install for sure. I hope my order goes thru on the manual I probly will just use it for education purposes mostly. I have a front CV joint leaking grease and cant tell if there is a seal there or not. the boots not ripped or torn so as long as its covered by the drivetrain warranty ill make an appointment and let the dealer figure it out, but i wish i had the pics from the manual to see whats there besides the boot and the clamp. Thanks again for the info
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175 Posts
To get pressurize oil, there's a sensor somewhere, usually small with a one or two wire connector to the top. Another source for pressurized oil might be the turbo feed. I don't know if our trucks have an oil cooler but that could be another source.
What type of tee fitting are you looking for? Which thread/pitch is the oil sensor? I got confused when you mentioned 1/8 NPT and then 12mm which I think is a pretty big fitting if it's a pipe. I think 12mm is close to 1/2" which is a big pipe.
What type of tee fitting are you looking for? Which thread/pitch is the oil sensor? I got confused when you mentioned 1/8 NPT and then 12mm which I think is a pretty big fitting if it's a pipe. I think 12mm is close to 1/2" which is a big pipe.
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Me personally, I wouldn't want to draft any oil off the feed to the turbo. I would be concerned about causing a starvation situation and reducing the bearing life of the turbo charger. I realize the bypass filters are only pulling 5% of the flow but that's 5% that's not going to it's original designed destination. Now, pulling it off an "end of line device" like a sending unit I'm all for that.....
Actually the sizes i found on line say the pressure sensor thread into the block is M12x1.75 so the t fitting would need a male thread that size to screw into the block and a female metric size opposite it for the sensor to reattach. The bottom of the T can be 1/8 npt which should adapt to the kit output hose directly or with an adapter to supply the input to the bypass filter and then the output from the bypass filter goes directly back into the engine usually via the oil fill cap via a L fitting or something. The main thing i think is to control the volume of oil via the by pass and i think the kits out there do that at the bypass filter head so im not sure the line size from the block to the filter is the critical part. The t fitting could also have all three holes sized the same and i should be able to get adaptor fittings to go from that to the metric sizes, I see all sorts of this stuff on ebay but there are so many listings i havent yet found everything i need. Sure i could buy the kit that insane diesel sells but i dont like the type filter they use. They sell a t fitting that is set up to work but it costs over $100. I think i can do it for about half of that but if i cant find what i need I may have to buy one. I also thought about just getting a t with smaller holes and retapping it to what i want. I try to ask vendors on ebay what they have and it takes time to hear back from them. Amsol finally got back to me and said they dont do a kit because of the type filter our trucks have. I already guessed that since they had nothing on their site. I guess they arent interested in doing one either. I am really surprised that there is only one dedicated kit out there (that i could find) since the engine and truck have been around for awhile now. I ordered a digital copy of the factory maintainance manual off ebay that is supposed to be a copy of the official one. That way i can see exactly what i am dealing with for sizes and locations ect. Seems like the biggest obstacle is the supply fitting for some reason. Most if not all the other kits use supply adapters that spin on where the main oil filter goes and then the stock filter spins onto it as normal. I would almost bet there is a place on the 2.8 oll filter housing that could be drilled and tapped for a similar connection. I wish i had one off a busted engine to see up close and experiment with...I am not totally sure what i am trying is the best way but I have to start somewhere as there jsut isnt much out there.
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Thing is, neither GM nor the EPA wants the owner working on their own vehicles anymore.
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