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Author Topic: Copper coat ooze  (Read 1264 times)

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Offline Rodger

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Copper coat ooze
« on: June 21, 2014, 11:33:25 AM »
I copper coated my head gasket. After my test ride of 5 miles took the bike home to inspect it.  I noticed tiny oozes of copper coat coming out around the head gasket, no oil just liquid copper coat.  Is this normal?  I did not go crazy with the coating 2 light coats.  If I have an oil leak at the head gasket again I am going to lose my mind!!! 
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69 Honda CB350, 71 Honda CB350K, 72 Honda CB350K Café,
75 Honda CB400F Blue, 75 Honda CB400F Red 73 Honda CL175 and 76 Honda CJ360

Offline flybox1

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Re: Copper coat ooze
« Reply #1 on: June 21, 2014, 11:39:04 AM »
I copper coated as well.  I see only small or really light oozing, primarily from compression.
Post up a picture for us to see.
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'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

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Offline Rodger

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Re: Copper coat ooze
« Reply #2 on: June 21, 2014, 12:42:25 PM »
Here we go
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69 Honda CB350, 71 Honda CB350K, 72 Honda CB350K Café,
75 Honda CB400F Blue, 75 Honda CB400F Red 73 Honda CL175 and 76 Honda CJ360

Offline flybox1

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Re: Copper coat ooze
« Reply #3 on: June 21, 2014, 12:54:27 PM »
Mine's not that bad, but I think you're still ok.  Wipe it clean and check it again after your next ride..
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'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"

Offline Rodger

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Re: Copper coat ooze
« Reply #4 on: June 22, 2014, 10:13:15 AM »
Just got back from a 30 mile ride and looks the same.  No more oozing of copper coat and no oil, so that a positive.  I'll be keeping an eye on it over the coming weeks
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69 Honda CB350, 71 Honda CB350K, 72 Honda CB350K Café,
75 Honda CB400F Blue, 75 Honda CB400F Red 73 Honda CL175 and 76 Honda CJ360

Offline RJ CB450

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Re: Copper coat ooze
« Reply #5 on: June 22, 2014, 11:04:14 AM »
Yup, 100% standard.  Every head gasket I have ever done gets a bit of weeping of the coating.
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74 CB450 K7 Supersport, 82 CB650sc Nighthawk, 1982 CBX 1000, 2015 Tiger XCx.... And some ol minibike with a 5hp Briggs.

Offline Rodger

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Re: Copper coat ooze
« Reply #6 on: June 22, 2014, 12:32:09 PM »
Quote from: RJ CB450 on June 22, 2014, 11:04:14 AM
Yup, 100% standard.  Every head gasket I have ever done gets a bit of weeping of the coating.

Glad to hear this!  It ran great today, I rebuild the carbs while they were off and synced them with the carbtune.  I was getting bored with riding my CB350K the handling of the twin is so so. 
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69 Honda CB350, 71 Honda CB350K, 72 Honda CB350K Café,
75 Honda CB400F Blue, 75 Honda CB400F Red 73 Honda CL175 and 76 Honda CJ360
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