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Reload this Page To those who have performed the engine ISO mount cradle mod
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  #11  
Old 04-13-2016, 12:57 PM
Yosemite Sam Yosemite Sam is offline
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There is no mention of new motor mounts, were your old mounts in good enough shape to reuse?
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  #12  
Old 04-13-2016, 01:00 PM
mattop mattop is offline
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I should have mentioned that the previous owner of this tractor replaced the motor mounts right before I bought it from him, so they are practically brand new.
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  #13  
Old 04-13-2016, 01:06 PM
R Bedell R Bedell is offline
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Quote:
I torqued the rubber mounts to 20 ft-lbs, I believe. Is that proper? Perhaps they should be tighter?
Way too tight. On my 1450 I used Ny-Lock nuts and tightened them down to the point where the rubber bushings were just snug. No problems....!!!

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  #14  
Old 04-13-2016, 01:09 PM
mattop mattop is offline
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Okay, good to know. I need to check the bolts, but I think about 2 threads are showing through at 20 ft-lbs. Is tightening these motor mounts along the lines of tightening the flex discs on the driveline? Just make it snug, don't torque down on it?
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  #15  
Old 04-13-2016, 01:10 PM
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Berwil Berwil is offline
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Did you replace the centering bushings for the driveshaft? Bad mounts (which they all have at some point) will wear the driveshaft ends and bushings out of round. I would try loosening the mount bolts as suggested, but it may be driveshaft related.

Bill
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  #16  
Old 04-13-2016, 01:14 PM
mattop mattop is offline
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Berwil,

I did not replace those bushings. The ends of my driveshaft did not have any noticeable wear. I felt the bushings before reinstalling, and everything seemed okay, but I didn't inspect them. I actually didn't consider them for wear.

I will certainly loosen up my mounts. Seems to me that may be what is causing the vibration. It's not violent or anything, but it does seem to be a big more rigid.

Just snug up the motor mounts then?
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  #17  
Old 04-13-2016, 05:03 PM
mortten mortten is offline
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Grab the driveshaft at the front and try to move it up and down. If there's much movement the front mount needs replaced. Reusing the nyloc nut should be ok.
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  #18  
Old 04-13-2016, 05:34 PM
R Bedell R Bedell is offline
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Just make it snug, don't torque down on it?
That is correct. As mentioned, check the drive line.
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Old 04-14-2016, 08:00 AM
Nightow1 Nightow1 is offline
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Ok please by all means correct me if im wrong, but i hear people complain about engine vibration at low idle and it goes away at high idle????? The engines were designed to be ran at HIGH idle this is how they COOL!!! It's not a Porsche + mowing should be done at high idle anyway. JMHO
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  #20  
Old 04-14-2016, 08:41 AM
R Bedell R Bedell is offline
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The engines were designed to be ran at HIGH idle
The engines were designed to run at WOT or 3600 RPM's.
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CC Models: 100, 105, 1450, 782, (2) 784, & 2072

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