which way does the water flow around the engine??

rwcoop · Post by **rwcoop** » Thu Nov 02, 2006 12:24 am

subytech · Post by **subytech** » Sat Nov 04, 2006 9:52 pm

From the waterpump throught the block and heater core, then to the radiator back to the water pump. Thats if the Thermostat is open, if its closed it more or less cuts out the radiator.

CCorsair · Post by **CCorsair** » Mon Dec 18, 2006 2:26 am

I have a 1990 Legacy L Wagon that yesterday had a hose on the top side go out wile my wife was out shopping. I replaced it and refilled the radiator and started up the engine and all seem well but as soon as I got it up and running it started to over heat as I got it up to speed it would not over heat at idle.

It try to red line on the temp 2 time and started to go up on last time .. I stopped and turn off the engine and let it sit for about 20 mins and started one last time as we had no way of towing the wagon at the time. it started and seem to not heat up fast then I noted the heater was not blowing hot at all . I turn up the heater and revered up the engine and the heater seem to cut in and the over heating stop.. I tried 4 time not and can't get it to over heat the heater is work today as well.

I found no leaks in the water pump weep No water in the oil(I know about that would meam) I think the thermostat could getting ready to take a dump so I been told to remove it all together but I am not sure if that is good for the Subaru.

Other thing to note both fans are not cutting in unless I turn on the AC or the heat /defrost other than that no fan is working when the engine is running . I going to get in to the shop unless I can get help to work on it as I'm a computer tech and not into engine repair I can done some stuff but not really info the let tear it all down and rebuild thing.

Now on electrical I can deal with stuff it the greasy and muck I'm not into.

not really asking for help just ideas as to what I looking at if i just drive it till it over heats again or should like keep it off the road and get to a shop ASAP?

Thanks

CC

Post by **Legacy777** » Mon Dec 18, 2006 4:02 am

Did you open the bleeder screw on the passenger side of the radiator to bleed the air out.

rwcoop · Post by **rwcoop** » Mon Dec 18, 2006 6:32 am

heya. bout the fans. Im pretty sure one runs off the engine temp switch, but the other comes on when u use air con.
so the air con one is obviosuly working but the engine one aint. Could be the temp sensor switch thing other wise may be ur fan.
As for the over heating, id just bout guarantee its ur thermo stat.
Wont cause bugger all harm not having it for a while, oh but i spose its winter over there huh which would make it a bit worse.
theyre cheap anyway and take bout 5 - 10 mins to do.

CCorsair · Post by **CCorsair** » Mon Dec 18, 2006 8:25 am

rwcoop wrote:heya. bout the fans. I'm pretty sure one runs off the engine temp switch, but the other comes on when u use air con.
so the air con one is obviously working but the engine one ain't. Could be the temp sensor switch thing other wise may be ur fan.
As for the over heating, id just bout guarantee its ur thermo stat.
Wont cause bugger all harm not having it for a while, oh but i suppose its winter over there huh which would make it a bit worse.
they're cheap anyway and take bout 5 - 10 mins to do.

Well yes it is winter.. it gettting nice and cold here at night and during the days . Going to test some more but hoping it keep working for a few days till payday as we can't get it in till then(wed). I think I'll get the fans look at well as getting thermostat replaced..I seem to see a few people having some of the same problems so it looks like I should get that taken care of ASAP.. Warped heads are not good and I don't even want to go there. Still my wife said the car didn't go in to steam mode till she shut down the engine on her last stop so I can't say if she red line the temp. i know by the time i got there i could see that near all the coolant was gone.

I got pitcher from bar and grill and filled the radiator with water till i could get it home(well that was plan) I turn on the engine all worked well.. moved it to new parking spot then went to the gas station next door and got some oil as we we're down bit but not much. let the car sit for about 20 to 30 mins the tried to get home.. about 2 blocks or more and the temp headed up and i hit the first parting spot in the X-mas rush zone of a Best buy(ya it was bad) Kill the engine and popped the hood and fount the top radiator hose venting steam and found the hole in it right off.got on cell and got the wife and our friend come get me to hit the auto part store for new hose and coolant.

Got the 50/50 pre-mix and I took the old hose with me (I love the last owner they left the Subaru tool kit in the back of the wagon.) I took the hose off and got it back on with very little problem.

I got every in place and filled the radiator but yes i did not open the bleeder screw. i didn't remember to do that so I know it would have made getting the coolant in easier and most likely there reason we over heated as there wasn't enough coolant in the system to keep the system cool? after I let the engine rest and I gave it one try it stayed cool all the home and stayed that way since. I' did ad more coolant and filled the overflow as well.
tested it about 2 to 3 hours later no over heating .. could have been that t was too cold so I tested it again today it ran very well and normal(and yes only the one center fan work with the second fan in the right side still does not cut in.)

the center fan ran before when we go the wagon but stopped after I had a fuel injector go out and now only work withe AC on or heater/Defrost on.(BTW the AC is out and need recharging too )

I Look a there bottom hose and all I don't even want to go there..I hate doing seal. Plus reading around the forum here it looks like I need to use OEM parts? OEM in computer mean cheaper in cars i find it mean $$$$. I hope I'm wrong.

It an old Subaru but I know they can last long in taken care of and i like to do that.

Ok well wish me luck as it has to last to get wife to work and it is a long drive there and back... and it has to get her to work till weds till payday..

I did get under and inspected the head and the water pump no leaks no water in the oil no exhaust smell in the radiator cap.

if there is anything I should look at to help me make sure I get this fix right please feel free to post of email me.

Thanks

CC

subytech · Post by **subytech** » Tue Dec 19, 2006 3:09 am

Sounds like you had air pockets in the cooling system, subarus are nitorious for air pockets forming in the cooling system anytime it has been drained. Search around, there are many good tips for burping the system on vorious other posts.

CCorsair · Post by **CCorsair** » Tue Dec 19, 2006 6:26 am

subytech wrote:Sounds like you had air pockets in the cooling system, Subaru's are notorious for air pockets forming in the cooling system anytime it has been drained. Search around, there are many good tips for burping the system on various other posts.

I seem to have known this from my younger days as a kid as my uncle love to go on camping trips in the Mojave desert area and we would blow hose a lot then and i remember we had to burp the air out of the radiator but of coarse I just thought it was just something i wasn't remember right at the time.

The wagon is running great but I am having the thermostat check and most likely changed and I getting the fans running right so I don't have to drive with the heat/def on all the time just to make sure the engine stays cool and I don't warp the heads.. i don't have a spare $1.500 right now to fix that.

Thanks all

CC

CCorsair · Post by **CCorsair** » Thu Dec 21, 2006 5:54 am

GOOD NEW!!!

All past in the thermostat and the heads.
Wagon is in good shape and I need to replace the Aux fan and the Main is work right as well. the shop did a once over and found no problem but for small oil leak that I can deal with now or later and that the one fan need a new motor. I can get a new one at $200+ or a used one from the salvage yard for $25...guess were i will be going..that is unless some has an extra out here.

Here a funny I randomly picked this shop off the internet as it was the only one other than a dealers ship to go to when I had an injector go out . today I ask them if they could check the frame to see if it had had any damage before and the guy said he didn't need to as this wagon was worked on by them for the last owners. Now that is a one in a million pick plus it makes me feel better about the wagon as the guy said they did all the oil changes and other work for the last owner and this wagon has a good history as being reliable.

This wagon was Craig's list buy for $1000 and I was fearing I got something with hidden problems.

Ok all thanks for the input and help
ave a Merry Christmas and Happy Hanukkah

CC

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which way does the water flow around the engine??

which way does the water flow around the engine??