To those Legend owners who is in denial or not sure why they are having issues with their coolant/radiators/fluctuating RPM/overflow reservoir/hot-cold air, here is a video that might explain your problem/s.
Head Gasket Questions
Old School
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I really hate it to disappoint you, but I don't believe that a broken hose is the cause
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Do you think a new radiator, thermostat, and all new hoses would fix the overheating problem? The hose that is broken is connected to the back of the engine and is one of the bigger hoses. it's directly behind the idle air control valve. My car drives fine still...just overheats after a short period of time.
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572 Posts
Ok i see that is the same hose that busted on me one time with a little hole that couldnt be seen and losing coolant on tghe ground until one day it busted.
Replace that hose and change the thermostat get it at Acura Delray i gave you the link before. Also check the water outlet hose for wear and tear. At times the hose may look good but on the inside of it is all worn and done that needs replacement.
After that see if it overheats and don't forget to bleed the coolant as well.
92LegendCoupe
Oh sorry. It was my bad because I got it wrong. Yes, broken hoses can always cause overheatings.
Exactly that's the way he has to go
Thank you, Sir :thumbsup:
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27 Posts
Hi guys, im new here, and I purchase a nice modded Ac Legend 91 for a older guy not to long ago. Car ran great for a few days but now its running hot. My father n law check it (who is a mechanic) and said it might be a BHG, but wont be sure unless he's able to dig deeper. When he was able to get to my car, he slipped and hurt himself. Since he told me it might be a BHG, i parked the car and havent drove it since. Thing is I did a little looking around, and it really seems like my water pump isn't circulating, which would also make my car run hot since im not getting any smoke, a/c and heat works great, and no idle hikes. I did find some bubbles on my oil dipstick, but the guy and the stickers proves the car's been sitting for quite some time. Should I check for BHG and replace water pump & timing belt or just the latter? Money has been tight recently due to me being the only one working at the moment. HELP ME...LOL
Hopefully yall can understand my rumbling...sorry! LOL
Hopefully yall can understand my rumbling...sorry! LOL
From the symptons it could be a BHG, and should be investigated. I think the best way to do is with a leak down test. Remove the radiator cap, place a funnel on top of the radiator and fill it with water, hook up the leak down tester to each cylinder (start at the rear cylinders), turn on the air. If you get bubbles coming up through the radiator then its a BHG for sure.
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6 Posts
Hi all....lots of fun with these BHG's huh? Well I have a '94 LS and it has been so dependable that I hate to part with it. It was getting the HOT spikes and pushing the coolant into the overflow. All of my standard ideas about overheating (which came from years of working on american cars) had to be thrown out the window. The Legend is very different. I had the top HOT hose and bottom cold hose symptom to the radiator, so I took out the thermostat as a test. That did not help, so I wanted to test the water pump. Well, couldn't make any definitive diagnosis on the WP so I just replaced it. That helped a bunch. While I was in there I discovered that the timing was one tooth off on both cams and fixed that. Bleeding the air out is so important with the Legend! Make sure that you have the heat on with the car parked upwards on an incline to make all of the air bubbles come out of the system. So, the car seemed much better, but there was still a problem. The coolant was still being pushed into the overflow tank/resevoir. So, it is a seeping head gasket. I have seend threads where they don't really call it a blown headgasket and I tend to agree because it acts much differently from what is normally seen on American cars. On American cars the coolant system maintains a pretty high pressure and you often get water forced into the oil. But on the Legend the coolant pressure is lower and because of the thin gasket areas on pistons 3 and 6 you get compression gases forced into the water passages. The chicken or the egg syndrome comes into play here because it is difficult to say with any certainty what initially causes the head gasket to start seeping. Could be that overheating from sitting in traffic with the airconditioner on initially causes it. Could be that jumping on the gas too much causes it. Either way the symptoms eventually end up the same. Head warpage and gasket seepage (is that a word?). Right now I am investigating my options and just pouring the coolant from the resevoir back into the radiator on a regular basis. The car runs great (although there is the white exhaust problem, but only a bit...not too bad). The tachometer is rock steady and the car has lots of power. Since I fixed the timing, one tooth off, problem the gas milage is better. I plan to keep driving it this way until I get up the gumption to pull the heads and replace the head gaskets. The only part that really bothers me are the inevitable frozen rusted exhaust manifold nuts. But I'll try to send updates as they happen. I'm sure that I'll have some questions and need some help too.
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12 Posts
HG done & worth it.
I just finished doing my head gaskets, and before had all the symtoms. Now the temp gauge stays one notch under the middle, no fluctuations, even if I give it a good run and max out the RPM's. I put a few hundred miles on it before doing so, let it all break in. I replaced ALL coolant hoses. New water pump, timing belt, tensioner, (kit). I used the Beck Arnley head gasket kit. Heads got milled, cleaned and pressure checked. Then added my Hi-flow exhaust, and for 230,000 miles it sure runs good, or more like awsome. 94 coupe type 2 TCS. Now all I need is the TCS throttle control to get it working. It was missing, I guess PO removed it, put this K&N filter on and chose speed over traction. I want traction, the car will lay a strip 1/4 mile up the road if I'm not careful. Love this car. WTB, TCS throttle control!!!!
I just finished doing my head gaskets, and before had all the symtoms. Now the temp gauge stays one notch under the middle, no fluctuations, even if I give it a good run and max out the RPM's. I put a few hundred miles on it before doing so, let it all break in. I replaced ALL coolant hoses. New water pump, timing belt, tensioner, (kit). I used the Beck Arnley head gasket kit. Heads got milled, cleaned and pressure checked. Then added my Hi-flow exhaust, and for 230,000 miles it sure runs good, or more like awsome. 94 coupe type 2 TCS. Now all I need is the TCS throttle control to get it working. It was missing, I guess PO removed it, put this K&N filter on and chose speed over traction. I want traction, the car will lay a strip 1/4 mile up the road if I'm not careful. Love this car. WTB, TCS throttle control!!!!
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572 Posts
That's great to hear. I am glad you got everything in good working order. Now all you have to do is take care of it.
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1,639 Posts
Definitely get the HG problem resolved ASAP(either by yourself or a reputable shop). You know the problem/s - don't delay as it will get worse and eventually lead to oil/coolant mixture in the engine witch will be a nightmare to clean or destroy the engine completely. :thumbsup:
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12 Posts
Getting the HG fixed is so worth it. Don't hesitate. I used the Beck/Arnley head gasket set, close out sale on Rock Auto....I wouldn't hesitate on that either, it's a good buy and a good gasket set. make sure you get the heads machined and cleaned, also good to pay the extra for pressure check. I also used the copper headgasket spray, it does help on older engines, just don't go to thick and let dry. I also let the heads sit on the gaskets, torqued down, for a couple days, then retorqued, then it was about another week before I got it running. Also replaced all coolant hoses, water pump, timing belt....to much invested to have anything go wrong. It just hit 230,000 miles, runs very smooth, coolant gauge sits steady, and love the power when I need it. All I have left now is to replace the Left inner/outer tie rods, align, fix the A/C, and find that stinkin TCS control unit.
Attachments
Be brave. If you feel that replacing the head gasket is long overdue, just do it. I know very little about car, but I was able to take the 93 L intake manifold apart and replace the head gasket...of course with the help of the posting (Mike ???) in this forum. For when you take on this project, you'll have the chance to clean at least various parts of the intake manifold and EGR. A new head gasket might help solve various mysterious issues with your car performance. Just like previous wrote, "It's worth it."
It's a lot easier to replace head gasket in 93 Legend than in 98 Prelude.
It's a lot easier to replace head gasket in 93 Legend than in 98 Prelude.
I am new to the forum and having bouight a 1991 Legend with 373k and a BHG I am finding this all very interesting (I got it real cheap). My son the engineer is doing the head work and we are learning a lot along the way. Repairing bad head bolt holes that someone messed up before is a real learning experience. It requires special tools and inserts. Be sure to get the head checked to make sure it is flat otherwise you will be wasting your time. I paid about $80 to have a shop make sure it was correct. Will let you all know how it turns out. Should be done in a few more days. Don
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572 Posts
Bad head bolts? My cousin is a new mechanic graduated from Lincoln Tech and he learned a lot about cars. He told me about the head bolts tend to snap right off and need to tap the holes for threads again and get new bolts. I guess getting the right tools and bolts for this occasion is the best thing we all can do unless someone else hasn't messed with it before. I am second owner to a 92 legend and runs smooth but been having issues with overheating and the fans won't come on due to faulty relay. I have to winterize my car in the same token i will be testing and checking out the relays and thermosensor pretty soon. Good luck with your head gasket job keep us posted.
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59 Posts
Maybe just try buying new bolts without tapping and diying em out
Well, unfortunately the last "mechanic" did a botch job on a couple of the bolt holes (back at the firewall). My son was meticulous installing a couple of helicoils and cleaning out all the other bolt holes. We bought the long helicoils (33mm I think) and bought the supposed proper install tool made by Helicoil. Something of a waste of $200. Cleaning up the bolt holes is imperative. We did a lot of extra work to make sure the bolts would torque to 56lbs before actually putting on the head. I can explain if interested. Anyway, it's coming together and I'll advise the outcome in a few days. Don
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