Which mount do I have?
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Tourer
Joined: Jul 2008
Posts: 498
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From: SWMO
Which mount do I have?
I picked up an '02 FLHT about a month ago. I noticed ALOT of vibration at idle but thought, hey its a Harley, its supposed to rattle your teeth out. Plus, it had a rattle that I had a hard time locating, but finally found it after reading on this forum about motor mount issues causing vibration(thanks by the way!). The bottom nut on the front lower motor mount was missing. So I just put a regular washer, lock washer and nut on it and that made a huge difference. However, the more I rode, it seemed the vibration at idle was coming back, so I picked up a 79D mount, but two different dealers did not have the large washer in stock. After closer inspection, my mount does not appear to be broken tho, and it does not appear that the large washer is necessary as the bottom of the mount is not flat so that a large washer would fit. I would like to use whichever motor mount would cut vibration the most. I've attached two pics. One is the bottom of the motor mount currently on the bike, the second is of the 79D mount. Any opinions on which mount the bike currently has on it and whether the 79D would be better in terms of vibration?
John
John
Road Warrior
Joined: May 2008
Posts: 1,287
Likes: 3
From: murfreesboro tn.
i have the 79 d on mine because i snatched it off ebay for 10$.cut vibration a bunch. the rubber compound on the older units is much better than the new ones in my opinion. also you should get a large washer to prevent compression of the rubber and cracking under stress. the washer disperses the stress under load
Road Warrior
Joined: May 2008
Posts: 1,287
Likes: 3
From: murfreesboro tn.
aded note. you may want to check your fairing braces for cracking. this occurs very frequently when motor mounts fail. as yours was run without the proper torque it may have cracked the brackets causing your vibration
Thread Starter
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Tourer
Joined: Jul 2008
Posts: 498
Likes: 0
From: SWMO
i have the 79 d on mine because i snatched it off ebay for 10$.cut vibration a bunch. the rubber compound on the older units is much better than the new ones in my opinion. also you should get a large washer to prevent compression of the rubber and cracking under stress. the washer disperses the stress under load
Thanks for the replies, I will check the fairing brackets cause I do believe they are broken.
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Road Warrior
Joined: Sep 2005
Posts: 1,942
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From: guntersville, al
i traded my 2001 RK saturday for a 2009 RK. first thing the looked at on my 01 was the front mount which it needed.
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Road Warrior
Joined: May 2008
Posts: 1,287
Likes: 3
From: murfreesboro tn.
if the mount is installed properly you will see the washer touches the rubber. as the motor moves in the mount the washer will help to evenly distribute the load. torqe specs are front engine mounts to frame bolts 15-20 ft. lbs
front engine mounting bracket to rubber mount bolt 15-20 ft. lbs.
i would also recomennd replacing the stock frame to mount bolt s and nuts. hd are chinese made easy to strip the threads off bolt
front engine mounting bracket to rubber mount bolt 15-20 ft. lbs.
i would also recomennd replacing the stock frame to mount bolt s and nuts. hd are chinese made easy to strip the threads off bolt
