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DGK 09-17-2012 17:22:02 70.194.65.176 Report to Moderator	I have banging noise sounds like comming from cam area. Pulled gov. completly out found 3 bolts on cam gear loose,still have noise but if u put gov and hyd pump back in it gets twice as bad. Thanks for any Ideas. Doug [Reply]   [No Email]
Fred from Mo 09-17-2012 19:56:37 70.195.64.236 Report to Moderator	Re: 620 JD cam noise? in reply to DGK, 09-17-2012 17:22:02   My experience is only with a 60 so take it for what its worth but can you pull the flywheel side cam bearing houding to check the cam bearing? [Reply]  [No Email]
DGK 09-17-2012 20:34:18 174.255.82.116 Report to Moderator	Re: 620 JD cam noise? in reply to Fred from Mo, 09-17-2012 19:56:37   Pulled clutch side cover off cam bearing look good but don't understand spring load on cam bearing. flywheel side looks good to. I notice 1 pushrod bearly rubs head but can't feel anything. [Reply]  [No Email]
Fred from MO 09-18-2012 09:38:48 69.55.155.226 Report to Moderator	Re: 620 JD cam noise? in reply to DGK, 09-17-2012 20:34:18   The spring on the clutch side pre-loads the bearings on the camshaft to keep the proper position/bearing crush etc. It needs to be in place when you re-assemble the first reduction gear cover. Can you pop the cover and look at your oil pump drive shaft. Are you getting good oil pressure? The cam, cam bearings, races, cam gear, oil pump, oil drive shaft all work as one, so I am just guessing that you have something going on in there not right. [Reply]  [No Email]
DGK 09-18-2012 18:06:19 70.194.69.53 Report to Moderator	Re: 620 JD cam noise? in reply to Fred from MO, 09-18-2012 09:38:48   Thanks Fred for reply! I know the spring preloads bearings but the cam gear is beveled gear I think. Why wouldn't they just shim it solid? Anyhow I have good oil pressure, spring is in right. I drove it to other place and will bring it back this winter when I have more time. But still need some more insight on it if anyone has any Ideas. Thanks Doug [Reply]  [No Email]