coolant recovery relocation

NGCnoproblem · Post by **NGCnoproblem** » Fri Sep 07, 2012 1:42 pm

Lookin for a good way to replace and relocate my coolant recovery tank. I've looked around and need some ideas. preferably somethin that looks clean not a sore thumb. Thanks

Danteneon · Post by **Danteneon** » Fri Sep 07, 2012 2:25 pm

Wow, deja vu!

viewtopic.php?t=63708&highlight=

NGCnoproblem · Post by **NGCnoproblem** » Fri Sep 07, 2012 2:42 pm

Lol I forgot about that. Alright well different question on the same lines then. Overflow reservoirs are different then recovery reservoirs correct?

Danteneon · Post by **Danteneon** » Fri Sep 07, 2012 3:17 pm

A catch-can could be just that, but it wouldn't take any more real work to become a recovery reservoir. All you need to do is make sure the hose goes to the bottom and there is some kind of vent in it.

Post by **occasional demons** » Fri Sep 07, 2012 3:22 pm

Or depending on location, the hose could be attached to a tube in the bottom of the tank. Vented cap, or tube on the top to direct coolant from a boil over downwards.

The last thing you want is boiling coolant shooting at the top of the hood, and all over. Especially if you decide to open said hood.

Danteneon · Post by **Danteneon** » Fri Sep 07, 2012 4:00 pm

True true.

NGCnoproblem · Post by **NGCnoproblem** » Fri Sep 07, 2012 8:21 pm

I'm lost... Lol

Danteneon · Post by **Danteneon** » Sat Sep 08, 2012 8:32 am

Simple design explanation...

The container needs to hold coolant. The engine needs to be able to pull coolant from this tank when needed (hot). The hose needs to be at the bottom of the tank to do this. The coolant needs to go back into the tank when needed (cold), so the bottle needs to not be air tight (hence the vent). For safety in the event of overheating, the vent should point down and away from anywhere hot coolant could spray on you or something else dangerous. You'll notice that the OE bottle has that open port on the right pointing down to the ground? That's why.

Post by **occasional demons** » Sat Sep 08, 2012 8:42 am

Danteneon wrote:Simple design explanation...

The container needs to hold coolant. The engine needs to be able to pull coolant from this tank when needed (Cold). The hose needs to be at the bottom of the tank to do this. The coolant needs to go back into the tank when needed (Hot), so the bottle needs to not be air tight (hence the vent). For safety in the event of overheating, the vent should point down and away from anywhere hot coolant could spray on you or something else dangerous. You'll notice that the OE bottle has that open port on the right pointing down to the ground? That's why.

Fixed for temperature dyslexia.

The coolant expands when hot, so it needs somewhere to go - the tank. When the engine cools, the vacuum created pulls the coolant that was pushed into the tank back into the engine part of the system.

Old school systems got away with not having an expansion/recovery tank, because there is ample air space at the top of the radiator tank.

The problem, they discovered, was that having air in the system caused oxidation of the coolant, and it broke down faster. Thus why they went to recovery tanks, to keep the air out of the system.

Not to save us money, but to cut down on warranty claims. When you start putting 50,000 to 100,000 mile warranties on the power train...

Danteneon · Post by **Danteneon** » Sat Sep 08, 2012 8:53 am

Oops

I should have caught that.

NGCnoproblem · Post by **NGCnoproblem** » Sat Sep 08, 2012 10:06 am

Ok so will an "overflow" tank do this? From what I read online they only catch overflow. That's where I've been lost. They call all of em overflow or expansion, not recovery. I just don't wanna buy the wrong thing lol

Danteneon · Post by **Danteneon** » Sat Sep 08, 2012 10:10 am

Post some links.

Post by **racer12306** » Sat Sep 08, 2012 10:52 am

Overflow: catches what is pushed out of the system. Not ideal for street use. Will not allow the coolant to go back into the system.

Recovery: has the inlet down at the bottom of the tank so that when the coolant expands it is pushed in the tank and then when the coolant contracts it is sucked back into the system.

NGCnoproblem · Post by **NGCnoproblem** » Sat Sep 08, 2012 10:55 am

^ok that's wat I thought. All I'm trying to figure is where to get a nice "recovery" not overflow

And thanks Dante I will wen I get a chance. I work Saturday's

Danteneon · Post by **Danteneon** » Sat Sep 08, 2012 10:59 am

I do too, but my Saturdays allow lots of internet time

NGCnoproblem · Post by **NGCnoproblem** » Sat Sep 08, 2012 12:11 pm

Well find me some classy recovery tanks lol

NickKo · Post by **NickKo** » Sat Sep 08, 2012 12:19 pm

Personally, I like Bill's idea, in his Project Log / Thread with the ongoing restoration of 'Casper' :

Check out Post # 40.
viewtopic.php?t=61886

I am not sure / don't think that this is a recovery tank.
I believe it is just an Overflow. ( unless I am mistaken )

Now, if it possible to get a similar recovery tank, to fit in that location....

THAT would be so cool.

- Nick

occasional demons wrote:
Caution: Honda parts!

Sorry Gramps!

This thing beats the oem unit to hell for accessing the alternator adjustment screw. After struggling with the daughter's 1gn to adjust the belt, I knew changes were in order.

Edit: And yes, there is another 1gn with the exact overflow/mounting bracket a bit North of me. Got to test this stuff out ya know. If there are issues with something, a woman will tell you about it.

NGCnoproblem · Post by **NGCnoproblem** » Sat Sep 08, 2012 12:21 pm

Ya I was thinkin of doin somethin very similar but preferably a metal one. And idk if that is either since the hose is at the top

Danteneon · Post by **Danteneon** » Sat Sep 08, 2012 12:45 pm

IIRC, the cap has a hose that goes to the bottom, so yes, it's a recovery bottle.

Hell, even the bottle I made is a recovery bottle. While the hose enters the top, it travels to the bottom. Small capacity, but doesn't seem to be a problem though. Had no problems driving back and forth to Carlisle in the stupid heat we had.

NickKo · Post by **NickKo** » Sat Sep 08, 2012 1:11 pm

Danteneon wrote:IIRC, the cap has a hose that goes to the bottom, so yes, it's a recovery bottle.

Cool.

Now that you point it out, it appears that it is, looking at the picture.
Thanks for confirming !!

- Nick

Post by **occasional demons** » Sun Sep 09, 2012 1:13 pm

Yes, it is a recovery bottle. For a Honda.

NickKo · Post by **NickKo** » Sun Sep 09, 2012 2:20 pm

occasional demons wrote:Yes, it is a recovery bottle. For a Honda.

Thank you, Bill.
.... No worries, I won't tell anyone.

- Nick

Post by **occasional demons** » Mon Sep 10, 2012 9:15 pm

From my PL....

NGCnoproblem wrote:Alright Dante where did you get that coolant tank lol. And the bracket

occasional demons wrote:For starters, the bracket will not fit a 2gn. And I think you unintentionally posted your question in this thread.

It is made from, IIRC, a HP computer case. I used the 1gn bottle to make a template for the mounting points, and raised it away from the firewall, so i could use the oem path for the fuel/brake lines.

The strap is a piece of metal banding, that holds material to skids for shipping. I just bent it so it conformed to the bottle, riveted it at the other end, and put a stud/nut on the visible side.

There is a molded place in the bottle to slide it into a Honda mounting bracket, but I was lazy, and didn't feel like fabbing one of those.

NGCnoproblem · Post by **NGCnoproblem** » Mon Sep 10, 2012 9:18 pm

Hmmmmm interesting