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Discussion Starter · #1 ·
Yeah, so I was fixin my 01 rubicon today and i thought the clutch went out, but i found that the oil pump chain came off. What could this mean?
 

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whenever you do fix it, i would get the tranny checked. this could be pretty serious. since it is a 01 it isnt covered. about all you can do here is hope for the best. like HM said, how long did it run without it?
-Aaron
 

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Discussion Starter · #4 ·
I have no idea, I just aquired the bike recently and all I know is that whenever you would put the bike in gear it would jump like it was trying to move forward or backward. I though it was the clutch that was out, but when i opened up the case I found that the chain had come off and that was what was making the rattling noise.
 

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Discussion Starter · #8 ·
no, it didn't break anything. The chain and both sprockets are in great shape. I ordered a new chain and i'm goin to try that and see. As far as I can tell the chain just came off
 

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Happened to my 04 rubi about a year ago. Scared me pretty good, thought I had snapped my rear end when I heard it grinding. Luckily I had warranty and the honda shop took care of it. They couldn't figure how it came off unless the crank was out of round so the engine was pretty much rebuilt. She runs like a top now and knock on wood hasn't gave me any troubles.
 

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The only way you can tell if it's stretched much is to remove the clutch cover .. A stretched chain won't make noise because it runs under oil..

As far as testing the oil pressure goes .. I have the Honda oil pressure gauge & adapter for the TRX500FG/FA .. I believe it sells for $122.44 CDN ..

I also have a Fluke PV500 pressure/vacuum tester which I use with a Fluke graphical meter... Fluke equipment is VERY expensive (couple thousand dollars CDN) but I use most of it almost daily so I buy tools I can trust and that is accurate ..

Here is an oil pressure test with a Honda oil pressure gauge & adapter ..
And the same test with a Fluke tester .. I have a couple of different tachs but I use the Fluke model 88 for all RPM tests ..


THE OIL PUMP IN THESE TESTS IS STARTING TO GET WEAK (BUT IS STILL GOOD) A NEW PUMP WILL MAX THE HONDA GAUGE WILL OVER 160 PSI...


When the pictures open click again for full size...


This is the 8mm allen bolt you remove the check oil pressure ..

This is the Honda adapter for the Honda oil pressure gauge..

This is the oil pressure at idle .. Minimum is 16 PSI..

This is the oil pressure at 5000 RPM .. Minumun is 116 PSI ..




Fluke test


This is the 8mm allen bolt you remove the check oil pressure ..

This is the Fluke adapter for the Fluke PV500 pressure/vacuum adapter..

This is the oil pressure at idle .. Minimum is 16 PSI..

This is the oil pressure at 5000 RPM .. Minumun is 116 PSI ..
 
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