05-04-2022, 11:03 AM | #1 |
Member
Join Date: Apr 2011
Posts: 70
|
Radiator cap
I’m giving up on moto-meter style radiator cap — too many experiences with stuck cap.
Any recommendations on replacement for 30- Coupe? Radiator is a recent replacement. Problem I am trying to solve is getting rusty water blowback on bonnet and windshield, so I’m thinking it should be something pressurized or at least with a good sealing gasket. Appreciate any important considerations before making the wrong choice. |
05-04-2022, 11:29 AM | #2 | |
Senior Member
Join Date: Aug 2012
Posts: 880
|
Re: Radiator cap
Quote:
You can't install a pressurized cap on a stock radiator. I use a Eaton type cap with a cork gasket. I find the hard fiber gaskets don't seal well for me.
__________________
The Master Cylinder Enjoying life at the beach in SoCal... Last edited by The Master Cylinder; 05-04-2022 at 11:35 AM. |
|
Sponsored Links (Register now to hide all advertisements) |
|
05-04-2022, 11:39 AM | #3 |
Senior Member
Join Date: May 2010
Location: Oregon
Posts: 5,963
|
Re: Radiator cap
Make sure your overflow tube is free and open, that is where the excess water should be going instead of your windscreen. A good cap gasket should stop water from exiting the cap. If the water is rusty flush the radiator and add a can of anti-rust/waterpump lube.
|
05-04-2022, 02:34 PM | #4 |
Senior Member
Join Date: Feb 2011
Location: Lincoln, Nebraska
Posts: 1,909
|
Re: Radiator cap
You may need to cut an additional gasket out of an innertube and add it under your existing gasket to get a tight fit. You should not have any water escaping from the radiator cap.
As far as the rusty blow back are you using water instead of coolant? If using coolant and it has rust in it but the coolant is still good / newer you can clean it up some by letting the car run for a short period of time and then drain the coolant into a bucket. Let the coolant rest for a couple of hours allowing the sediments to drop to the bottom of the bucket. Carefully pour the coolant back into the radiator without disturbing the last bit in the bucket and discard the sediments. Repeat a few times. Works surprisingly well.
__________________
Dave / Lincoln Nebraska |
05-04-2022, 02:49 PM | #5 |
Senior Member
Join Date: May 2010
Location: N. GA
Posts: 531
|
Re: Radiator cap
Go to ACE hardware and buy an O-ring to fit the cap.
TOB |
05-04-2022, 08:53 PM | #6 |
Senior Member
Join Date: Jan 2012
Location: Western North Carolina
Posts: 3,897
|
Re: Radiator cap
Sponsored Links (Register now to hide all advertisements)
Rusty water is bad. Use 50/50 water/antifreeze. Only use 100% water when testing the cooling system, like after replacing a head gasket. Then drain it out and put in the antifreeze mixture. Extend the overflow tube down a bit with a rubber hose after making sure it is clear.
__________________
A is for apple, green as the sky. Step on the gas, for tomorrow I die. Forget the brakes, they really don't work. The clutch always sticks, and starts with a jerk. My car grows red hair, and flies through the air. Driving's a blast, a blast from the past. |
|
|
Sponsored Links (Register now to hide all advertisements) |
|