BIG--T
Member
Posts: 3002
1998 Standard, 2000 Interstate
The Twilight Zone
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« on: May 25, 2013, 09:37:12 AM » |
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I have run about 800 miles and antifreeze is coming from around the cap. I have changed caps and still doing it. What is strange to me it only does it when after I crank it cold then run about 20 minutes or so it starts for a while then quits for 100s of miles until i park it overnight then starts all over again. The reservoir is about 1/4" above the top mark cold and has plenty of room for expansion. Any thoughts on this?
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Cotton Mouth
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« Reply #1 on: May 25, 2013, 10:13:28 AM » |
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I had the problem real bad years ago. Had to smooth out the top of the neck where it meets the cap gasket, it had a slight warp to it, and I think the screw from the cap dug into it also. I heard some guys would adjust the clamps at the bottom of the cap so it grips the radiator tighter. I still get some spraying out, only a few times a year now.
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1999 I/S SOLD BUT NOT FORGOTTEN Jan 2015
1998 HD Road King Classic
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Oklahoma_Valk
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« Reply #2 on: May 25, 2013, 10:19:51 AM » |
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you might check the hose between the radiator and reservoir. Make sure it isnt clogged cracked or broken. Also, have there ever been any stop leak potions used in the radiator?
Thats my best guess, sorry.
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Let those who ride decide.  |
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BIG--T
Member
Posts: 3002
1998 Standard, 2000 Interstate
The Twilight Zone
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« Reply #3 on: May 25, 2013, 10:57:15 AM » |
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you might check the hose between the radiator and reservoir. Make sure it isnt clogged cracked or broken. Also, have there ever been any stop leak potions used in the radiator?
Thats my best guess, sorry.
[/quote
I just bought it and don't know about stop leak, I would think not. I will check the over flow hose again. It didn't start until i added a chrome radiator cover, it's not touching but maybe i did something to it.
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BIG--T
Member
Posts: 3002
1998 Standard, 2000 Interstate
The Twilight Zone
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« Reply #4 on: May 25, 2013, 11:02:29 AM » |
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I had the problem real bad years ago. Had to smooth out the top of the neck where it meets the cap gasket, it had a slight warp to it, and I think the screw from the cap dug into it also. I heard some guys would adjust the clamps at the bottom of the cap so it grips the radiator tighter. I still get some spraying out, only a few times a year now.
Thanks I will check. Funny, I never had this trouble with my Harleys!  |
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salty1
Member
Posts: 2359
"Flyka"
Spokane, WA or Tucson, AZ
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« Reply #5 on: May 25, 2013, 12:25:10 PM » |
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... Funny, I never had this trouble with my Harleys! Nope, just oil leaks.  |
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My rides: 1998 GL1500C, 2000 GL 1500CF,2006 GL 1800 3A   |
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BIG--T
Member
Posts: 3002
1998 Standard, 2000 Interstate
The Twilight Zone
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« Reply #6 on: May 25, 2013, 05:14:11 PM » |
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... Funny, I never had this trouble with my Harleys! Nope, just oil leaks. And if they didn't leak something was wrong!  |
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pancho
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« Reply #7 on: May 25, 2013, 05:49:11 PM » |
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I am still amazed that there is NO oil leaking, weeping, or stained areas.... I keep checking but I'll get over it..... maybe .....
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The most expensive things you will purchase, are those things you would not have needed if you had listened and obeyed.
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Jess from VA
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« Reply #8 on: May 25, 2013, 06:04:13 PM » |
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Most leaking rad caps is because the rad neck is a little warped/crooked. Pull the cap and clean the neck and try to tighten the neck tabs for the cap a bit. Gently, no hammers.
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sandy
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« Reply #9 on: May 25, 2013, 10:07:31 PM » |
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I've used a flat surface and some 1000 grit paper to flatten the radiator opening. Place a small piece of cloth into the radiator and LIGHTLY sand the surface till it looks even all around. Pull out the wet cloth so as to drag the sanding dust up with it.
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R J
Member
Posts: 13380
DS-0009 ...... # 173
Des Moines, IA
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« Reply #10 on: May 25, 2013, 11:49:08 PM » |
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I have run about 800 miles and antifreeze is coming from around the cap. I have changed caps and still doing it. What is strange to me it only does it when after I crank it cold then run about 20 minutes or so it starts for a while then quits for 100s of miles until i park it overnight then starts all over again. The reservoir is about 1/4" above the top mark cold and has plenty of room for expansion. Any thoughts on this?
There are 2 little clips that hold the cap on. Take a pair of good pliers and go easy, bend the tab towards the cap ever so lightly. That should cure your leak. If it doesn't, try it again, no work this time check check for a little weep hole in the cap to the radiator. I think it is the cap is not tight enough. |
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44 Harley ServiCar   |
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