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snorkelfork Samba Member
Joined: June 03, 2013 Posts: 29 Location: Austin, TX
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Posted: Wed Sep 12, 2018 7:51 am Post subject: Seeking review of my Ej22 coolant routing |
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I worked up a diagram of my routing and I'd appreciate some input regarding its efficacy.
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alaskadan Samba Member
Joined: January 09, 2013 Posts: 1857 Location: anchor pt. alaska
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Posted: Wed Sep 12, 2018 8:28 am Post subject: Re: Seeking review of my Ej22 coolant routing |
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Looks like mine. You need a bypass restrictor in your rear heater loop though. I cut a pc of 5/8" round stock and drilled a 3/8" hole down the center and slid it into the loop. |
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snorkelfork Samba Member
Joined: June 03, 2013 Posts: 29 Location: Austin, TX
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Posted: Wed Sep 12, 2018 8:57 am Post subject: Re: Seeking review of my Ej22 coolant routing |
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?
No rear heater in this set up.
I'm not clear where you mean?
Thanks for the feedback. |
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davevickery Samba Member
Joined: July 16, 2005 Posts: 2887 Location: Fort Collins, CO
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Posted: Wed Sep 12, 2018 9:22 am Post subject: Re: Seeking review of my Ej22 coolant routing |
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That looks OK. I think the shiels thermostat housing is optional. Here is how mine looks. It works great. I can't see any reason to change it.
I also thought it was down and out for the radiator connections, do you have that backwards?
Last edited by davevickery on Fri Sep 14, 2018 7:45 am; edited 1 time in total |
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snorkelfork Samba Member
Joined: June 03, 2013 Posts: 29 Location: Austin, TX
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Posted: Wed Sep 12, 2018 9:29 am Post subject: Re: Seeking review of my Ej22 coolant routing |
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I could have those wrong. I pulled it from another diagram. |
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jeffsab Samba Member
Joined: August 30, 2011 Posts: 93 Location: Portland, OR
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Posted: Wed Sep 12, 2018 2:10 pm Post subject: Re: Seeking review of my Ej22 coolant routing |
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I used a stock KEP setup in mine. But I am curious about these alternate methods: what do you do with the Subaru heater outputs? Just loop them together? |
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alaskadan Samba Member
Joined: January 09, 2013 Posts: 1857 Location: anchor pt. alaska
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Posted: Wed Sep 12, 2018 6:00 pm Post subject: Re: Seeking review of my Ej22 coolant routing |
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Duh, I just saw that you had a bypass and my mind wanted a heater there too. |
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AZ Landshaper Samba Member
Joined: February 08, 2009 Posts: 1698 Location: The Old Pueblo
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Posted: Thu Sep 13, 2018 11:02 am Post subject: Re: Seeking review of my Ej22 coolant routing |
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the bypass and tom sheils fitting do the same thing but Toms solution is better and doesnt have you mixing hot w cold and giving a mixed solution to the thermostat.
Looks about right to me. Id eliminate the bypass w the TS piece instead. Dunno if hes still in business. He had bigger priorities/ diff focus last I heard.
Id take one of those doohickeys right now for my upcoming project. _________________ Support Small Business.
-------------------------------------------------------
85 Weekender w/ EJ22
Previously
64, 71, 72, 73, 76, 81, 84, 85 & 87 Campmobiles and Westfalias
and a 67 bug. |
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snorkelfork Samba Member
Joined: June 03, 2013 Posts: 29 Location: Austin, TX
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Posted: Thu Sep 13, 2018 11:43 am Post subject: Re: Seeking review of my Ej22 coolant routing |
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I was able to buy a fitting from Tom last month.
I've done this a bit backwards, I've already installed this cooling arrangment.
I had an overheating issue my first long drive and my radiator fan did not switch on so I thought I'd confirm this is an okay arrangment.
I'll eliminate the bypass from the system.
After some consideration, I am thinking that I may have had a large air pocket in the top of the radiator blocking the flow.
I'd love to see a diagram of the radiator flow to help me wrap my head around how it works if someone has one. |
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wesitarz Samba Member
Joined: August 20, 2012 Posts: 1490 Location: Victoria,B.C.Canada
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Posted: Thu Sep 13, 2018 2:09 pm Post subject: Re: Seeking review of my Ej22 coolant routing |
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For the rad vertical would be down and out. That's OK. Agree a 1/2 inch OD (3/8 inch ID heater line bypass is all you need for a bypass. Is it close to the engine? You have flow through design for the expansion tank - the only thing I see is that you have to mix hot coolant with cold in the expansion tank before the hot gets to the Shiels housing and t'stat. Might not be as efficient as running a dedicated line direct from the coolant manifold to the Shiels housing at the t'stat. I would leave it as is until you are sure all the air is bled out of it. I drive mine a bit then park it nose down until coolant is cold and check for air in the expansion tank,then top it up along with the overflow to max line. I have a Shiels type housing connected to the manifold and my expansion tank is in the heater line. Adding a bypass (3/4--1/2-3/4 PEX x2) as well gives me flow through the expansion tank with heater off and seems to have stabilized my engine temp. I have a similar in-line VDO temp sender. |
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wesitarz Samba Member
Joined: August 20, 2012 Posts: 1490 Location: Victoria,B.C.Canada
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Posted: Thu Sep 13, 2018 4:47 pm Post subject: Re: Seeking review of my Ej22 coolant routing |
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I have my in-line VDO temp sender in the same position as yours. I also have a Subaru temp sender in the middle of the coolant manifold. What I see on warm-up is the temp from the middle of the manifold rising first to about running temp (VW gauge needle at the LED) then the VDO temp rises afterwards to about 180 where it sits or just above that. My feed to the t'stat comes from the middle of the manifold near the Subaru temp sender early Smallcar design)
If you changed the small end of the manifold outlet to go directly to the Shiels housing and the expansion tank outlet to feed the heater hot line and kept the heater crossover (3/8 inch ID) you would have the same as me. With the crossover you will have continuous flow through the expansion tank with the heater off or hotfoot valve closed. The temp is pretty steady and the heat is OK for the Pacific northwest anyway.
My crossover is up near the gas tank so it's not critical to be close to the engine.In my experience the engine temp is more stable with flow out both ends of the manifold. |
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snorkelfork Samba Member
Joined: June 03, 2013 Posts: 29 Location: Austin, TX
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Posted: Sat Sep 15, 2018 4:21 pm Post subject: Re: Seeking review of my Ej22 coolant routing |
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I did this all a bit backwards, I’ve already installed this set up and I’m In the shakedown phase. I am going to stick with this arrangment and remove the heater crossover if an issue arrises.
Any chance someone can help to identify the dash temperature gauge wiring in the engine compartment? From what I’ve found I am looking for a Yellow/Red wire but haven’t narrowed down where in the engine bay to find it. |
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crazyvwvanman Samba Member
Joined: January 28, 2008 Posts: 9923 Location: Orbiting San Diego
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Posted: Sat Sep 15, 2018 4:25 pm Post subject: Re: Seeking review of my Ej22 coolant routing |
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What year and model is your van?
Mark |
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davevickery Samba Member
Joined: July 16, 2005 Posts: 2887 Location: Fort Collins, CO
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Posted: Sat Sep 15, 2018 4:54 pm Post subject: Re: Seeking review of my Ej22 coolant routing |
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snorkelfork wrote: |
Any chance someone can help to identify the dash temperature gauge wiring in the engine compartment? From what I’ve found I am looking for a Yellow/Red wire but haven’t narrowed down where in the engine bay to find it. |
It should be in the round 7 pin (called engine harness connector below) in the little box on the engine firewall on the drivers side.
http://subaruvanagon.com/tom/Getting%20Started.htm
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burleymotorsports Samba Member
Joined: July 17, 2005 Posts: 332
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wcdennis Samba Member
Joined: July 20, 2004 Posts: 955 Location: Winston-Salem NC
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Posted: Sat Sep 15, 2018 7:09 pm Post subject: Re: Seeking review of my Ej22 coolant routing |
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Getting the air out of the long pipes to the front is a challenge no matter what engine you have in the back. The same strategies for bleeding apply after the conversion. |
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snorkelfork Samba Member
Joined: June 03, 2013 Posts: 29 Location: Austin, TX
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Posted: Mon Sep 17, 2018 8:26 am Post subject: Re: Seeking review of my Ej22 coolant routing |
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THank everyone for all of the info.
I've got my OEM gauge working now and I'll continue to work on bleeding the air from the system to see where that get's me. |
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chompy Samba Member
Joined: August 12, 2014 Posts: 400 Location: Cascade Locks
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Posted: Mon Sep 17, 2018 4:39 pm Post subject: Re: Seeking review of my Ej22 coolant routing |
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Consider using a libby bong or a weed sprayer(my favorite) to fill your coolant and push out the air. They help a ton. _________________ '81 Westfalia Subaru EJ22
Manual Transmission |
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snorkelfork Samba Member
Joined: June 03, 2013 Posts: 29 Location: Austin, TX
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Posted: Tue Oct 02, 2018 1:13 pm Post subject: Re: Seeking review of my Ej22 coolant routing |
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Weed Sprayer did the trick.
Pinched off the crossover so that the coolant couldn't take the path of least resistance and that pushed the remaining air out pretty quick.
I 've spent a couple of weeks driving it around ain different conditions and I feel confident in the set up and that it's well bled.
Thanks everyone for all the input.
For anyone who wants it i created a corrected version of the 87 Vanagon radiator wiring
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