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02-26-2010, 09:49 PM | #11 |
Getting Wild
Join Date: Feb 2007
Location: Washington state
Posts: 124
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Re: Overhauled G-9, Questions
the oil slinger didn't get bent??? and is hitting
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02-26-2010, 10:18 PM | #12 |
Not Yet Wild
Join Date: Feb 2010
Location: southwest GA
Posts: 71
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Re: Overhauled G-9, Questions
what is deck height ?I was think about stroking a 454 bb chevy but has to have a deck height 10.2".can you tell be outward apperance the deck height?.thank you .still learning stuff sorry
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02-26-2010, 10:35 PM | #13 | |
Raised by coyotes
Join Date: Nov 2008
Location: Central Texas
Posts: 5,658
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Re: Overhauled G-9, Questions
Quote:
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02-26-2010, 10:38 PM | #14 |
Raised by coyotes
Join Date: Nov 2008
Location: Central Texas
Posts: 5,658
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Re: Overhauled G-9, Questions
Courtesy of smallblock450sl:
I know where your comeing from. The mark on the crank and cam are easy "markings". The mark on the crank for the balancer is so bad we do it buy experiance. Here we go.... When you have your cam alighned with the crank....You will need to "back off" the crank to install the balancer. When balancer installed rotate the crank back to the cam alignment marks. You should find the cam-crank-balacer marks make a "V". You may need to back off the crank and reset the balancer buy a tooth (or two) and repeat. I'm going to try to attatch a picture. Good luck dave I'm not saying that is for sure your problem, but again it has all the symptoms you describe. Been there and done that! |
02-27-2010, 09:35 AM | #15 |
G8 Specialist
Join Date: Jun 2009
Location: Phoenix
Posts: 7,799
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Re: Overhauled G-9, Questions
Could it be a wrist pin moving back and forth in the larger piston?
I've never had one of these apart, so I'm just shooting wild. |
02-27-2010, 11:46 AM | #16 |
Not Yet Wild
Join Date: Jan 2010
Location: NorthWest
Posts: 22
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Re: Overhauled G-9, Questions
Well I marked inspected and reinstalled the oil slinger in the orientaion called out in the manual, did not appear bent or twisted . Its pretty straightforward inside the crankcase. I do remember reading the posts regarding having to roll back the crank to allow the balancer to install properly which I did. All seemed to be in good alignment after installing. Double checked and the case half slid on no problem. I guess I will pull it apart and try to figure this one out on the bench,,,,, Thanks to everyone I will keep you posted
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03-02-2010, 02:02 PM | #17 |
Gone Wild
Join Date: Apr 2008
Location: Wichita, KS
Posts: 1,530
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Re: Overhauled G-9, Questions
I've never had one of these apart either but here is my two cents.
The old VW air-cooled engines would knock if you put the rods in backwards. Just a thought.... |
03-02-2010, 04:23 PM | #18 |
gone yamaha!
Join Date: Sep 2008
Location: ontario, canada
Posts: 1,424
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Re: Overhauled G-9, Questions
drive clutch? mine ratlles a bit untill WOT
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03-02-2010, 08:18 PM | #19 | |
Not Yet Wild
Join Date: May 2009
Posts: 3
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Re: Overhauled G-9, Questions
Quote:
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03-03-2010, 08:19 PM | #20 |
Not Yet Wild
Join Date: Jan 2010
Location: NorthWest
Posts: 22
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Re: Overhauled G-9, Questions
And As Always Guys Thank You for the input, Well I pulled it apart & benched the engine. I found balancer alignment good & right where it should be, slinger ok , oh and drive clutch has a minor amount of bushing play but not bad at all, also checked internal brgs again, Still nothing real obvious. Pulled the con-Rod and found really strang brg. wear and high & low spots in the brg shell.....Re=plastic-gauged it and mic'd the crank again. checked it for defects etc...The only thing I do see is this checked & railroaded connecting rod brg.. I am still really unsure the old brg looked ok worn evenly but worn... as in not a bent rod or cap. They both look ok even now in proper orientation and right side of pin etc... I am leaning towards this funky brg ... ?? I have ordered another and I guess we'll see..updates as I fix it.....
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