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beartoe2020
16:02:02 Sun
Jul 31 2005

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Finally Installed My Cooland Lines

After three years of work, I finally decided to cut through the tunnel and run my coolant lines. I had to remove the heater cables conduits so the copper pipes would not touch the shift rod.










  
FunBug
14:49:49 Thu
Aug 4 2005

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Re: Finally Installed My Cooland Lines

BearToe...
Great Job...

While you were in the Tunnel did you replace your shift Rod bussing, as they do go bad after years of wear and no attention causing your trans to jump out of gear.

Your work is very creative you must be very determined. Looks good. Please keep us updated with your progress.

Can we ask how did you find out how to Post your Pictures along with your text? Many of us have tried but couldn't figure it out.

  
beartoe2020
17:53:46 Thu
Aug 4 2005

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Re: Finally Installed My Cooland Lines

Good point. I did see the bushing in pieces. The tunnel is still open. I will order and replace.

  
BugaRu
02:25:54 Fri
Aug 5 2005

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Re: Finally Installed My Cooland Lines

Good catch. Yep many Bug owners have spent much money unnecessarily thinking that they needed a new trans simply because the trans was popping out of gear when actually a worn shifter rod bushing "Located in the Tunnel" is most likely the cause because the shifter rod has to much play. Thus causing play in the shift forks thus the trans pops out of gear. It usually occurs in 2nd or reverse but could happen in any gear.



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Fast Cars, & Slow Women makes me Drool
 
 
subaruboxer
08:58:19 Sat
Aug 6 2005

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Re: Finally Installed My Cooland Lines

Hi beartoe2020,

it is a very bad idea to put the coolant lines in the tunnel, you will experience a very hot pan and cabin. The lines will be around 100 į C hot and so will be the tunnel and surrounding area. If you do this to a race car or a quarter mile car you can live with that, but for a street car it is a big mistake. You will have corrosion inside the tunnel,too. The coolant lines should be placed under the pan, it is a big benefit if the coolant is loosing some heat on the way to the radiator. A smaller radiator can be used. And it is not that much work to put them under the car.

JŲrg

  
beartoe2020
00:25:15 Mon
Aug 8 2005

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Re: Finally Installed My Cooland Lines

Advice well taken. Anyone else there ran their coolant lines through the tunnel? Iff so what have you experienced? I would like to hear from you.


  
BugaRu
03:39:10 Mon
Aug 8 2005

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Re: Finally Installed My Cooland Lines

I have read many post here on this board of members who also had the idea of running their water lines through the tunnel. I have thought of it as both a good and a bad idea. Good because it is an almost a direct line to and from the engine. Bad because I donít think it would stand the test of time nor the accessibility in the event that your ever need to access a water leak plus keep in mind that there are other important items in your tunnel that may someday need repairs or attention. Throttle cable, clutch cable, linkage, etc. Plus as "Subaruboxer" mentioned the heat. You may not think itís a big worry in the beginning but on a warm day with the radiant heat of near 200 degrees coming and going to and from your engine will soon drive you out of the car making all of your hard efforts a very uncomfortable joy ride.

Also the use of using copper tubing is questionable? I have no real experience using copper, but have read that many of todayís modern antifreezes donít mix well when using copper plumbing and aluminum engine blocks? Maybe someone else can answer this better but I remember seeing something about todayís modern antifreeze attacking and corroding copper piping?



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Fast Cars, & Slow Women makes me Drool
 
 
bte_3
19:39:20 Mon
Aug 8 2005

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Re: Finally Installed My Cooland Lines

bugaru, thats a very interesting point u bring up, but, u have to remember that well over half the radiators out there are actually made of copper. i personally dont think anyone with half a brain would design an antifreeze that isnt compatible with most cars on the road... just my 2 cents...
Ben

  
BugaRu
00:26:14 Tue
Aug 9 2005

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Re: Finally Installed My Cooland Lines

bte-3... Not all of the newer cars are running copper rads, many of them are running alum, mostly due to better cooling and less cost to manufacture. But I agree with you on the copper and anti-freeze thing-a-ma-gig, but I know that I saw it posted on here somewhere that the newer antifreeze made for alum engines, corroded copper. Then again maybe I thought that I saw it after a few brew-skiís.



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Fast Cars, & Slow Women makes me Drool
 
 
bte_3
03:46:22 Tue
Aug 9 2005

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Re: Finally Installed My Cooland Lines

hah, well anythings possible... its all good though. it makes sense that most new cars are switchin to aluminum, waaaay more efficient. i have some info from kennedy, and i think i remember reading after they suggest using copper piping that they also suggest using an anti corrosive something or other in the system because of the fact the the aluminum engine and copper lines dont get along that well... i guess it just means we need to be reading our antifreeze bottles more closely...
Ben

p.s. ur coversion looks VERRRRYY nice, how efficient is your cooling capacity w/ such a small rad onening in the apron, im halfway through my conversion and im making a fiberglass scoop that sticks down below the bumper a bit and my dad's still concerned that its big enough... i donno, maybe ill post some pics...

  
BugaRu
14:01:44 Tue
Aug 9 2005

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Re: Finally Installed My Cooland Lines

Ben
The vent in the front apron is just some added protection and C@@L L@@Ks. Most of the air is captured from the area just below the Radiator, or what was once the spare tire wheel well. When I installed the radiator I removed almost all of the metal under the radiator area, and made a scoope / air damn that helps deflect the air upwards, also the fan does a great job as it pulls the air over the radiator as needed. My car doesn't over heat although I'm running a 190 degree thermostat so my normal operating temps on a Hot summers day of 90 degrees the engine temps run at 185-200 .. But from what I'm told thats the normal opperating temps of a Subaru engine. I've also heard that Subaru or someone makes a 160 degree thermostat? I also have a few other Subaru conversions with this simular setup and so far no poblem.



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Fast Cars, & Slow Women makes me Drool
 
 
bte_3
18:48:15 Tue
Aug 9 2005

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Re: Finally Installed My Cooland Lines

cool, 185-200 sounds perfect.... actually i was talking to this guy who i think actually is in the auto industry and he was telling me about how the prime temurature for a gasoline engine to run is around 215... he said its the point where combustion and everything else where closest to their prime, butttt the auto industry doesnt take the chance of setting that temp as their normal operating temp cause its kinda on the edge of overheating if your car isnt in prime conditon... oh well, just some food for thought...
Ben

  
BugaRu
00:59:31 Fri
Aug 12 2005

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Re: Finally Installed My Cooland Lines

Yes, that is true. Combustion engines creates dampness and moisture even if not water cooled, your find some traces of moisture in our oils. Mostly due to metals sweating, moisture in the air etc. Look at the older Porsche engines as an example, their ideal oil temps or operating heat range is around 220 + degrees, and that is the temp where father Porsche wanted those engines to operate because it is actually helpful to the engine because it is the point where water will evaporate and separate from the oil, thus pure lubrication for the well oiled machine. The problem is that most of us with our narrow water thinking minds think immediately of water evaporating at 220 degrees and begin to get nervous when we see our temp gauges approaching the 200 degree mark. But please keep one thing in mind and that is that we run hi volumes of anti-freeze if not 100% in our water systems, and anti-freeze has an extremely hi boiling point. Plus Subaru engines along with many other manufactures have designed their engines, along with a thermostat and ECU brain that will make the engines run Hotter then our mental capacity would like to comprehend. Reasons are several. 1st to burn off any excess fuels before they exit the exhaust, and to better help the vehicle pass emissions testing, and also to rid the engines of any water molecules thus helping the engine lubricate better and last longer.

But even with these facts in mind, most of us would still like to see our temp gauge hold around 160 Ė 180 on a hot summers day. Not for any other reason other then to know that the heat will dissipate from our radiators etc quicker and itís not near the boiling point. It will also be more self comforting to deal with when I add the addition of my upcoming AC unit, and the condenser in-front of my radiator. Gosh more heat and right where Iím trying to get rid of it.

Also not sure how many of you transplants have done this, but I have installed a temp gauge also reading from my radiator. Iíve found that if your reading 190 degrees at your engine temp sensor, then your temperature at your radiator is approx 20 degrees less, but as the car runs further the radiator temps will increase slightly but never be at the same temp that the engine is operating at, simply because the heat begins to cool and disipate as the water travels to the radiator. Yet another reason not to run your water lines inside of the car! Not unless your in a cold climent and your in need of heat.



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Fast Cars, & Slow Women makes me Drool
 
 
SuicdRn
23:35:01 Mon
Jun 12 2006

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Re: Finally Installed My Cooland Lines

I'm a newbie here but have had my coolant lines running thru the tunnel for almost 20 years. I used 1 3/4 galvanized and just recently developed my first leak( in a connector hose). With the interior carpet and upholstery the heat factor has never been a problem. Some may be familiar with my car, it was a cover car back in Jan. 92 HotVWs. 1968 Type III pickup. My lines are similar to the ones pictured here , except I brought mine out the top of the tunnel which is in the pickup bed area of my car............Norm

  
EG33
20:23:57 Sat
Jun 30 2012

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Re: Finally Installed My Cooland Lines

Ignorance is bliss?

I can ring in on placement of the cooling lines. I had a 79' vert with a 13B (spelled H.O.T) and I choose the tunnel to run my (I think) 1.5" lines straight down the middle. In the front they exited out the factory shifter tube acess hole. And in the back they left that flat area of the pan just before the nose cone mount. With the help of two oblong holes of course.

Some of what I'm reading here, well make sense. And I just never thought about the pros and cons of doing it one way or another. It's GR8T to hear other opinions.

But I have to say, everything on my conversion ran as normal. I didn't notice any increased temps in the car or a "hot tunnel" situation as it were. The tubes were an inche or two away from the tunnel itself. I'm sure it would be another story if it was attached to it. The tubes just hung in the breeze.. as all the bracketry kept them at bay.

Running the tubes down the center was "OUT OF SIGHT and out of mind". I did however use some thick walled cold-rolled tubes that would hopefully last a life time. My radiator was positioned at a steep, laid back angle where the spare tire sat (being a McPherson strut front end).. The rear aspect of the spare tray was removed to exhaust the air. One thing I didn't plan on was the radiator heat was absorbed by the fuel tank. Not what you would want. But I never got around to partitioning the two areas.

I picked up air from under neight with the help of a small ~2" lip or dam (this lip was mandatory, I couldn't run without it. Which makes sense. The air had no intention of making a hard turn and direct itself in without help).

Once that mini-dam was in place and I learned the secrets of the "air pocket demons".. I was good to go. However next time I go to run H2O lines I will keep all this in mind..


Cheers!
Randy, Long Beach, Ca. USA!

  
bill_clark
00:43:52 Fri
Jun 3 2016

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Re: Finally Installed My Cooland Lines

Great thread, but what happened to the pictures?
With help from Kennedy, I plan to plant a rebuilt 1.6L in the rear of a nearly pristine [ except for the interior of coarse]
73 bug with front mount radiator. I need all the pre-thinking I can get on coolant lines.

  
ImperialCollege
10:54:21 Tue
Nov 8 2016

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Re: Finally Installed My Cooland Lines

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