ever seen upper coolant hose collapse

[nuclearlemon]

what would cause this? it was running warm, but not hot (although it did get toasty a couple of times earlier in the day) and had plenty of fluid. i parked it for about 40 minutes while a cohort tried to roll his cruiser...came back to find this.

 

[spotcruiser]

Never seen one do that before. I can only imagine it expelled a lot of fluid and then drew a vacuum when it cooled.

Todd Bull.

 

[nuclearlemon]

definitely vacuum there...the cap was holding the vacuum. when i opened the cap, it felt sticky until everything broke free. no fluid on the ground, but i didn't see what was in the overflow tank.

since gettting hot was only one of the problems, i'm off to search archive about why my t case started popping out of low halfway through the day (and on the downhill icy side of the trail )

 

[Plowboy]

A bad radiator cap, that doesn't let the fluid from the overflow bottle can cause that. Or the tube between the bottle and radiator overflow has been fouled and will not let the fluid return.

 

[nuclearlemon]

there is no return on the overflow...it's just that. a racing setup, so no tube into the tank to draw over flow fluid.

makes sense...thanks

 

[hammerhead]

...my t case started popping out of low halfway through the day (and on the downhill icy side of the trail )

Are you running the AA donut type motor and tranny mounts?

If you are they may be allowing the drivetrain to move around. Mine moved to the side just far enough to let the shifter hit sheetmetal and knock it out of low...

 

[treerootCO]

parked it too close to the EVIL magoo is my guess

 

[nuclearlemon]

Are you running the AA donut type motor and tranny mounts?

If you are they may be allowing the drivetrain to move around. Mine moved to the side just far enough to let the shifter hit sheetmetal and knock it out of low...

no...no advance adapters crap. hot rod mounts up front and transmission is mounted off a crossmember to the pto side covers.

 

[nuclearlemon]

parked it too close to the EVIL magoo is my guess

i didn't park next to him, but i did drive past him...do you think he can pass his evil that far? projectile evilness?

 

[toddslater]

there is no return on the overflow...it's just that. a racing setup, so no tube into the tank to draw over flow fluid.

They won't let you out on the track with out a puke catcher I've seen it happen, with people running a 24 lb cap. I'd check your cap and if install a cheap puke catcher from summit.

 

[PUPTLAM]

hydro- or vapor lock, can't intake what it has discharged, seen it happen to to 3000 psi hydraulic lines,when a check vave fails. radiator cap wont suck. on a happy note all your radiator line clamps are good.

 

[nuclearlemon]

on a happy note all your radiator line clamps are good.

yeah, i had problems with hoses popping off because of a weird s tube setup that we had to fab, so i'm running constant torque clamps off a freightliner.

 

[PUPTLAM]

is this a one time deal? ran the same setup for years? or is there something new added to the engine or vaccum setup?

 

[nuclearlemon]

really don't wheel the vehicle that much or as hard as i did yesterday because i haven't gotten a cooling issue fixed. this setup's been in the cruiser for about 4 years and does fine on road, but at low speeds and high r's, it heats ups, so yesterday, i'd run it til it got pretty dang warm, but not hot enough to do serious damage, then let it cool and continue on. this particular event happend on the downhill side, where the oem gauge never climbed higher than the halfway point, but i still popped the hood up out of habit to cool it down. it wasn't terribly cold out and we were out of the wind by then. we were stopped at this spot for about 1 hour while a friend kept trying a particular obstacle.

 

[toddslater]

What is the total capacity of your cooling system ? Looks like your running an aluminum 4 core crossflow...this should be adequate ? Have you considered running a surge tank (along with the puke catcher mentioned above) ?

 

[Magoo]

i didn't park next to him, but i did drive past him...do you think he can pass his evil that far? projectile evilness?

you better fawkin believe it!!!! evil always prevails.

 

[CruisinGA]

Isn't that the reason you are supposed to put a spring in the top hose?

 

[spotcruiser]

Isn't that the reason you are supposed to put a spring in the top hose?

I almost suggested adding a spring, but then realized that you should never need a spring in the upper hose. The bottom hose, being on the intake side, is the hose for which collapsing is normally a possibility and a real problem. A new 14 lb. cap should fix the problem. Additionally, an overflow tank would be a good idea. The early 70s tanks are pretty easy to find and would pretty much seem stock.

 

[hammerhead]

I have springs in both...

 

[Texican]

You need a bigger fan.........more air flow
try a Taurus.......and run the shroud it comes with......