coolant filter ??
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Hotshot
Joined: Apr 2010
Posts: 19,055
Likes: 235
From: Saratoga Springs,UT
coolant filter ??
hey guys just was getting ready to peice together a coolant filter kit. I was just wondering about tying the filter bypass back in at the heater return line vs tying back in at the smallest line to the coolant degass bottle. Now I am going to put the valves at the filter both sides for less coolant loss during a filter change and possibly to regulate the flow. Is there a reason for the kits that I have seen that tye back in at that small line. I just thought that it might filter more coolant if I didnt reduce down so much. I dont know what am i missing here??? I dont care would like to hear the good, bad, ugly. Thanks for your thoughts.
Senior User
Joined: Aug 2010
Posts: 202
Likes: 1
From: FLORIDA
hey guys just was getting ready to peice together a coolant filter kit. I was just wondering about tying the filter bypass back in at the heater return line vs tying back in at the smallest line to the coolant degass bottle. Now I am going to put the valves at the filter both sides for less coolant loss during a filter change and possibly to regulate the flow. Is there a reason for the kits that I have seen that tye back in at that small line. I just thought that it might filter more coolant if I didnt reduce down so much. I dont know what am i missing here??? I dont care would like to hear the good, bad, ugly. Thanks for your thoughts.
the bigger the hose will not help out any?that is only a return line from the heater core it's not a high presser line.it's still only going to filter the same amount of coolant
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
I did my own DIY redneck coolant filter just to SEE what I was collecting in process. I can't take credit for the idea (don't remember the OP's screen name so speak up) but I did change the location for it.
The OP installed a "fuel filter" inline between the radiator and degas bottle. I originally installed a "glass fuel filter" there but was unhappy with the volume and quality of the flow. It was really a part time thing, so I moved it into the EGR cooler deaeration port line between the Intake manifold and the degas bottle since it's a full time flow. 20 miles and I was amazed what I collected but so far no reduction in coolant flow. I was also amazed at the constant parade of very small bubbles from the EGR cooler deaeration port.
The OP installed a "fuel filter" inline between the radiator and degas bottle. I originally installed a "glass fuel filter" there but was unhappy with the volume and quality of the flow. It was really a part time thing, so I moved it into the EGR cooler deaeration port line between the Intake manifold and the degas bottle since it's a full time flow. 20 miles and I was amazed what I collected but so far no reduction in coolant flow. I was also amazed at the constant parade of very small bubbles from the EGR cooler deaeration port.
Senior User
Joined: Jun 2005
Posts: 113
Likes: 1
From: Cincinnati, Ohio
The flow into the degas bottle from the DieselSite Coolant filter is normal. When the flow stops, that means the filter is clogged and needs changed.
Hotshot
Joined: Aug 2006
Posts: 17,398
Likes: 317
From: Whittier, CA
hey guys just was getting ready to peice together a coolant filter kit. I was just wondering about tying the filter bypass back in at the heater return line vs tying back in at the smallest line to the coolant degass bottle. Now I am going to put the valves at the filter both sides for less coolant loss during a filter change and possibly to regulate the flow. Is there a reason for the kits that I have seen that tye back in at that small line. I just thought that it might filter more coolant if I didnt reduce down so much. I dont know what am i missing here??? I dont care would like to hear the good, bad, ugly. Thanks for your thoughts.
You can tie it back in at the heater return hose if you want. But there are a couple of drawbacks. First, have you seen where that hose is located? It goes behind the engine, along the firewall, and into a Y below the degas bottle. Second, you won't be able to see the return flow, so you won't have that to determine when to change your filters. All in all, it seems like it complicates things without any benefit.
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
I don't have a coolant filter. I experimented by adding an inline filter in the two small degas bottle lines. The one from the radiator had, at times, little to no flow. The one from the EGR cooler has flow constantly, which is what I wanted. Open the hood, easy to visually check and easy to service, plus getting MORE flow than the filter kits. I just wanted to see if I needed to flush before my Bulletproof oil cooler install.
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Logistics Pro
Joined: May 2004
Posts: 3,605
Likes: 865
I put mine in a while ago and have gone through three filters....the first two were changed at short intervals as recommended. I tore the filter apart after dryingit out but nothing was really in my system.....I got lucky I guess.
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Hotshot
Joined: Apr 2010
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From: Saratoga Springs,UT
What you are missing is the restriction within the filter itself. The discharge hole out of those Baldwin filters is 5/32". Much smaller than any hoses you would use. The filter itself is the limit to the possible flow.
You can tie it back in at the heater return hose if you want. But there are a couple of drawbacks. First, have you seen where that hose is located? It goes behind the engine, along the firewall, and into a Y below the degas bottle. Second, you won't be able to see the return flow, so you won't have that to determine when to change your filters. All in all, it seems like it complicates things without any benefit.
You can tie it back in at the heater return hose if you want. But there are a couple of drawbacks. First, have you seen where that hose is located? It goes behind the engine, along the firewall, and into a Y below the degas bottle. Second, you won't be able to see the return flow, so you won't have that to determine when to change your filters. All in all, it seems like it complicates things without any benefit.
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Hotshot
Joined: Apr 2010
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From: Saratoga Springs,UT
I got the filter base mounted today with the braket made of diamond plate. I was going to tye in at the heater supply line befor the valve.Somehow I was going to see if i could get a gallons per minute going here I will post the results of before and after i drill the discharge hole of the filter base. to see if i get an increased flow
And then i was going to tye back i n at the heater return line.
And then i was going to tye back i n at the heater return line.
Fleet Mechanic
Joined: Jan 2007
Posts: 1,708
Likes: 7
From: Circle City
exactly to the point, which makes the small diameter hose more than enough for bypass filtration. But there's nothing wrong to bounce ideas around, that's how new stuff's created.
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