No Coolant
 

Just a quick question.

Assuming the the engine is cold, how far do you think I could drive with no coolant?

My overheating problem finally came to a head today when, a couple of miles from home, a hose buried deep in the engine bay somewhere decided it couldn't cope any more and promptly dumped the coolant all over the road!!!

10-20 minutes maybe, my fan was stuck on my fan shroud and didnt spin and i drove it on the freeway for about 20 minutes with no problems then right when i got home the needle jumped to red zone

Thanks for that :)

I did actually pluck up the courage and drive it home, luckily with no problems.

did u replace ur HG yet maybe dats ur car way of telling you its going out

With a stuck fan and driving at highway speeds you wouldn't have a problem till you slow down and lose the high airflow but with no coolant you won't last more than a few minutes. Ive tried to milk that situation before thinking I could just make it to work, then in less than 5 minutes the rattling started.....

Mine too. It's heated up on me during the test drive after my build.

But it was because I blew a coolant line, because of a 15 year old stock hose clamp.

A water cooled engine will overheat in less than 5 minutes with no coolant. No way in hell its lasting 15 minutes.

kudos, operating temp is already too far with no coolant. Dont do it or ur looking serious trouble.

LoL..., you would be better off pissing in it.

I run prestone 50/50. Other than that. Distilled water incase of a 911.

I know. I can't stay in denial any more.

I've done everything else so it must be the HG!! Better start saving.

I found the reason why the car had dumped all the coolant on the road.

When I put fresh water into the radiator to see where it was coming out, I found a small stub of a metal pipe at the back of the engine that had been covered with a rubber cap tied on tight with a jubilee clip.

I've now put this cap back on nice and tightly, refilled and since had no problems.

Presumably, if this cap was in the process of coming off it would not have allowed the cooling system to pressurise properly and hence cause overheating.

The real puzzle though is what is that pipe doing there in the first place. It seems to serve no purpose except to give the coolant somewhere else to escape from.
I'm still in denial about the BHG.....

that pipe is a part of the cooling system. Its a part of the piping that routes from the thermostat housing back around the engine to the intake manifold.

That pipe is for LHD and RHD depending on which one it was installed in for the heater hose and the other side is capped off. Another way of saving money by making parts universal and making another trouble spot.

My 86.5 did the same thing and I always wondered why that stupid thing was back there. I just took a metal cap and braized it on there then never had to worry about it again. The motor that I took out of my 87 had a peice of hose with a spark plug stuck in it and a couple hose clamps when I bought it. The only thing that is going to suck is the coolant gets down into the exhaust cover below it and it will burn that crap for days.

This EXACT thing happened to me a half an hour after I bought my Supra, and began driving it home! All of a sudden the temp redlined and I had to pull over. I could smell burning antifreeze, and see it on the exhaust cover. I drove it for five more minutes, to a rest stop (thankfully it was right there, I was out in the boonies at 12 am). I hitched a ride back home (2.5 hours...) from some random dude, and drove back up there with some friends the next day.
It was that damn cap at the back of the engine, clipped tight, and cracked open. I couldn't figure out what it's purpose was, but I knew it was the problem. I rigged up a new rubber thing and clamp, and I haven't had any problems since, although I check it from time to time to make sure it's on tight.