Correct radiator cap - Chevelle Tech
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post #1 of 5 (permalink) Old Jul 1st, 19, 2:32 PM Thread Starter
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Correct radiator cap

originally 327

Napa says vented style, 13 lbs #bk7031697


One I have has a lever release, 13 lbs cant tell if its vented or not?
Suspect i may have put the wrong one on & assumed cause I put a recovery tank on the car the non vented style was needed.
Upper radiator hose is super hard when/after running, fighting temps. Never see activitiy in the recovery tank.

????

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post #2 of 5 (permalink) Old Jul 1st, 19, 4:12 PM
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Bruce
 
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Re: Correct radiator cap

Your issue is over heating. W/P working? T-stat working? Fan Belt tight? Fluid level correct (not over full or grossly under filled? Timing advanced too much?

Forget the cap for a moment and check out these items, then worry about a cap for that overflow system.

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post #3 of 5 (permalink) Old Jul 1st, 19, 4:37 PM
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Eric
 
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Re: Correct radiator cap

A hard radiator hose is normal for these cars. The cap you have is pressure release only fluid will only flow out and your tank is basically a puke catcher. If you want it to be a recovery tank then you need the proper cap that allows fluid both ways.

What temps are you fighting?
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post #4 of 5 (permalink) Old Jul 1st, 19, 9:41 PM
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Re: Correct radiator cap

A non recovery cap has only a seal where it contacts the opening in the radiator and the recovery cap as a seal on the upper edge where the brass would be on the non recovery cap, ie, two seals so as to recover coolant from the reservior and the non recovery cap allows coolant to overflow and air to return to the radiator. Hope I haven't messed you up about caps. The early cooling systems usually had a lower pressure than the recovery systems on later cooling systems.

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post #5 of 5 (permalink) Old Jul 2nd, 19, 1:43 PM
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Greg.
 
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Re: Correct radiator cap

This is the Rad Cap I have on my system and it works for me
it will spit out/puke Coolant thru the Clear Plastic 5/16" Tube into the Bottom of the JAZ 1 Quart Bottle


And as the Rad cools down it will allow the Coolant to be Sucked back in from the Jaz Bottle
I have watched/seen this happen in the Clear Plastic Tube





The Black Rubber Tube is so if the Bottle becomes Full it can push Coolant out of it to between the path of the Front & Rear Tires

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60' = 1.561
1/8 = 7.411 et / 90.18 mph
1/4 = ??.??? et / ??? mph


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