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Home » Public Forums » GMCnet » Onan 4K Oil Fill Tube (Is it also a crankcase vent ??)
Onan 4K Oil Fill Tube [message #332996] Mon, 04 June 2018 09:22 Go to previous message
SteveW is currently offline  SteveW   United States
Messages: 538
Registered: June 2005
Location: Southern California - Ora...
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Senior Member
Hello....

The cap / dipstick on my 4K Onan has become pretty loose.

I'm thinking about replacing its rubber stopper with a new rubber plug.

Will this new "tighter" seal cause problems elsewhere ?? Might the oil fill tube also provide crankcase venting ??

As always, thank you all for the wealth of information provided here.

Steve W
1973 23 Yellow
Southern California



Steve W 1973 : 23' Southern California
 
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