Motor mounts
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Joined: Feb 2018
Posts: 68
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From: Indiana
Motor mounts
Perhaps I read too much. I'm finding a lot of complaints about the front motor mounts on dynas deteriorating due to oil changes. Is this problem limited to specific years or across the board? Info on preferred mounts seems to lean towards predator, whereas everything else is fairly vague. Anyone care to opine?
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Joined: Sep 2016
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From: S.W. FLORIDA
Don't know if there is an issue, but after working on cars most of my life I know that oil and mounts do not play well together. I generally pressure wash my entire bike after I service it to ensure no oil is left on my bike
Seasoned HDF Member
Joined: Jul 2008
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From: southeast PA
Getting oil on the mount can cause problems with the rubber. There is an easy solution- clean it off after you change the oil!
Another issue is when the front mount is not installed correctly at the factory, which can lead to premature wear. That is also easy to correct by shimming the mount and aligning it.
Aftermarket mounts like Predator and Sputhe will help tighten up handling. If you're happy with the way the bike rides and handles you will be fine with the stock mount.
Another issue is when the front mount is not installed correctly at the factory, which can lead to premature wear. That is also easy to correct by shimming the mount and aligning it.
Aftermarket mounts like Predator and Sputhe will help tighten up handling. If you're happy with the way the bike rides and handles you will be fine with the stock mount.
Extreme HDF Member
Joined: Feb 2015
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From: Galt's Gulch - MI
The only way to be certain to never get any oil on the isolator is to relocate the oil filter
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Joined: Feb 2018
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From: Indiana
Did you replace with OEM parts or aftermarket ? And if aftermarket, which?
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Joined: Dec 2017
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From: Delaware
Theres a special funnel made for Evo's and possibly Twin Cams called "Gregs Drip Free Oil Change Funnel". Its available in all the catalogs, it's sort of a flat, orange plastic thing that slips under the oil filter so nothing drips down on the motor mount. It works great, just FOLLOW THE INSTRUCTIONS, its very simple. Just replaced both mounts on my '98 Dyna. Stock on rear, Predator up front. Rear one was a pain in the **** to replace, front wasn't too bad.
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From: NW Ohio
I'm only aware of three mount styles...
1. Stock-style (various lower cost repops available...JP, Bikers Choice, etc)
2. Vibratechnics Predator
3. Big Bear Choppers / Chopper Hauss
1. Stock-style (various lower cost repops available...JP, Bikers Choice, etc)
2. Vibratechnics Predator
3. Big Bear Choppers / Chopper Hauss
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It doesnt help the stock motor mount takes a beating from the rear swing arm trying to hold the bike in alignment either, and thats why these bikes really kill OEM mounts fast aside from the rubber getting saturated by oil.
Buy the Vibra-technics predator mount and forget about killing a motor mount. Although its still wise to protect it too while changing the oil.
Buy the Vibra-technics predator mount and forget about killing a motor mount. Although its still wise to protect it too while changing the oil.
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Joined: Feb 2015
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From: Galt's Gulch - MI
It doesnt help the stock motor mount takes a beating from the rear swing arm trying to hold the bike in alignment either, and thats why these bikes really kill OEM mounts fast aside from the rubber getting saturated by oil.
Buy the Vibra-technics predator mount and forget about killing a motor mount. Although its still wise to protect it too while changing the oil.
Buy the Vibra-technics predator mount and forget about killing a motor mount. Although its still wise to protect it too while changing the oil.
This is the route I took; the Predator up front; money very well spent. And, to keep any chance of oil getting on the bike/mount during oil filter removals, I relocated the oil filter to the left downtube. With the oil filter relocated, you never spill one drop of oil