Author Topic: Oil leaking out of exhaust  (Read 1385 times)

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eqmdef8

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Oil leaking out of exhaust
« on: August 13, 2007, 07:29:18 PM »
I'm new to motorcycles, but I have plenty exprience with cars.  My neighbor gave me a 1977 cb550F that has been sitting for a few years.  The motor turned over with the kick start.  I did a compression test and everything looked good.  I did a tune up and oil change on the bike.  I was having trouble getting it started and after about 25 kicks(electric start button missing :() I decided to retest the compression.  I removed all the spark plugs and started on cylinder 1.  When I got to #3, a big drop of oil came out of #4 as I kicked it over.  I didn't think much of it, becuase I had put some oil in it orginally during compression test.  Needless to say, I found it to be condensors.  I replaced this afternoon and the bike started right up.  It smoked a good bit, thought it was from sitting.  After a few minutes of running I noticed an oil drip coming from the collector on the 4-1 exhaust.  I also noticed that the "smoke" was applying a nice coat of oil to my patio.  I'm thinking valve seals, but I'm not sure.  If anyone has any ideas, and how to go about checking them, I would greatly appreciate it.

I'm really looking forward to riding my new bike. My brother was so excited he's going to look at a 750 this weekend.  All help will be appreciated.  Thanks.

Offline mark

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Re: Oil leaking out of exhaust
« Reply #1 on: August 13, 2007, 07:47:43 PM »
Sounds like loose oil left over from your wet comp. test.

Assuming no unusual noises or other serious issues - take it for a good ride and see if it still smokes like that when you get home.

Happy trails.
1976 CB550K, 1973 CB350G, 1964 C100

F you mark...... F you.

eqmdef8

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Re: Oil leaking out of exhaust
« Reply #2 on: August 14, 2007, 05:09:48 AM »
I let the bike idle for ~10 minutes and it still did it.  I need a master link for the chain and a bleeder for the caliper(the one in there is broken) before I can drive the bike.  Do you think I should fix that and ride the bike before pulling the head off?  I'm trying to avoid spending a lot of money if the motors not worth it.  Thanks for your input.

Offline BobbyR

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Re: Oil leaking out of exhaust
« Reply #3 on: August 14, 2007, 05:17:18 AM »
I let the bike idle for ~10 minutes and it still did it.  I need a master link for the chain and a bleeder for the caliper(the one in there is broken) before I can drive the bike.  Do you think I should fix that and ride the bike before pulling the head off?  I'm trying to avoid spending a lot of money if the motors not worth it.  Thanks for your input.
I would fix the bleeder and the chain and ride it. You may have a stuck ring and the motor may re break in. If you ride it and like it and the problem does not go away, you may want to invest the time to fix it up.
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But we were boys, and boys will be boys, and so they will. To us, everything was dangerous, but what of that? Had we not been made to live forever?

eqmdef8

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Re: Oil leaking out of exhaust
« Reply #4 on: August 14, 2007, 10:22:38 AM »
Sounds like good advice to me:). I'll keep ya updated on whats happening.  Thanks.

kaysystems

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Re: Oil leaking out of exhaust
« Reply #5 on: September 02, 2007, 03:09:04 PM »
Are you still leaking?

Mine leaks too, but I'm not taking it apart until winter.

David