Recent Topics
AA/AAA battery charger suggestions?
by Quattro Pete
27 minutes 47 seconds ago
2015 Camry Dirty Plug
by WayneandAnna
50 minutes 11 seconds ago
Scooter CVT and 4-moto final gear fluid question
by badtlc
Today at 02:52 PM
Federal controls are destroying our schools
by OneEyeJack
Today at 02:39 PM
How to Connect Conduit to Back of Main Panel
by exranger06
Today at 02:08 PM
Vredestein Quatrac 5
by JRed
Today at 01:36 PM
FiOS is playing hardball and want to increase rate
by Joe1
Today at 12:14 PM
95 Lesabre running rough when warm
by nwjones18
Today at 11:37 AM
Techron at Costco - $7 off 6-pack
by barlowc
Today at 10:35 AM
Air Asia Crash report
by supton
Today at 09:37 AM
getting a mortgage when you're self employed?
by motor_oil_madman
Today at 09:17 AM
How often to change 20w50 Mineral
by FordCapriDriver
Today at 09:15 AM
Newest Members
david330, techminh, Niche, rezzy, bubu
56182 Registered Users
Who's Online
99 registered (2oldtommy, 901Memphis, 05LGTLtd, afoulk, 2015_PSD, aircooled, 15 invisible), 1668 Guests and 119 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
56182 Members
66 Forums
241318 Topics
3910184 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#635416 - 01/15/05 09:39 PM What happens when a radiator cap goes bad?
Shaman Offline

Registered: 07/27/04
Posts: 2326
Loc: Frankfort, Kentucky
I was riding my bike, and I parked it and walked away for a while, and noticed that there was radiator fluid on the ground inline with my radiator/radiator cap. It's full fairing so i don't really know where it leaks out of. The bike had been highway for 15 minutes. When i got the bike, and checked the fluid, there was practically none in it. Does this sound like a radiator cap, radiator, or head gasket?

#635417 - 01/15/05 10:09 PM Re: What happens when a radiator cap goes bad?
Chris142 Offline

Registered: 06/05/03
Posts: 13244
Loc: apple valley, ca
Caps fail 2 ways.

1. They quit sealing which won't allow pressure to build up. Water will be pushed out the overflow tube.

2.(Most common failure) The rubber expands so that it totally seals the radiator into a shut system. When this happens pressure can't be released. Plastic radiator tanks crack, solder joints pull apart. heater valves leak and hoses can blow.

#635418 - 01/16/05 04:26 AM Re: What happens when a radiator cap goes bad?
drive it forever Offline

Registered: 09/03/04
Posts: 843
Loc: Grove City, OH
A bad cap lowers the boiling point. Usually, a bad head gasket will make the engine overheat, and it happens rather quickly even with a cold engine.