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12-02-2013, 10:22 PM | #1 |
Not Yet Wild
Join Date: Nov 2013
Location: So. Cal.
Posts: 8
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what did I do wrong???
I have a 350 cc robin. I wasn't satisfied with 150 psi in each cyl so I took the head off to inspect (and I was bored that day). The exhaust valves were a little beat up but I put it all back together anyways. I had the same compression after I was finished so I figured everything was Ok. My kid drove the cart today and all hell broke loose! Motor oil has covered the entire drivers side of the engine, when i started the motor it struggled to turn over and I heard engine knock! I re-checked the compression, 150. Did a leak down test and have an exhaust leak in one and intake leak on the other, funny thing is theknock is gone. The air box is dry and the breather tube is still connected at each end.
I'll be pulling the motor to at least clean it up, but I need you guys to tell me what I did wrong? Thanks in advance for your help. |
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12-03-2013, 09:04 PM | #2 |
Not Yet Wild
Join Date: Nov 2013
Location: So. Cal.
Posts: 8
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Re: what did I do wrong???
Come on guys, no response??? I've read many different threads and I know there are some very knowledgeable folks here.
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12-03-2013, 09:10 PM | #3 |
Gone Wild
Join Date: Oct 2010
Posts: 6,730
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Re: what did I do wrong???
Did you re-use the head gasket? How's the oil level?
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12-03-2013, 09:10 PM | #4 |
I Refuse To Get Stuck!!!
Join Date: Jun 2010
Location: Hilton,NY
Posts: 5,427
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Re: what did I do wrong???
Sounds like the Valve-timing is off and it crashed the valves.That would give you a knock,and cause your valve-leaks.Did you setup the valvetrain properly when you reassembled the motor?I've seen guys remove heads,do whatever they were in there for,and reinstall the heads,but not readjust the valves,and they crashed or did other damage every time.Hope this helps.
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12-03-2013, 11:27 PM | #5 |
Not Yet Wild
Join Date: Nov 2013
Location: So. Cal.
Posts: 8
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Re: what did I do wrong???
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12-03-2013, 11:39 PM | #6 | |
Not Yet Wild
Join Date: Nov 2013
Location: So. Cal.
Posts: 8
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Re: what did I do wrong???
Quote:
Thanks for the help! |
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12-04-2013, 09:32 AM | #7 |
Gone Wild
Join Date: Feb 2008
Location: Brooklyn, Michigan "Home of M.I.S."
Posts: 3,666
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Re: what did I do wrong???
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