Author Topic: engine mount problem  (Read 758 times)

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Offline gsun

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engine mount problem
« on: March 11, 2018, 07:13:48 pm »
I was installing AST highway pegs and when I took the left side engine mount bolt out it shifted and the frame dropped or the engine went up. The bolt hole does not line up. The right side is still in. I tried jacking up on the frame. I can shift it a little by prying between the frame and the head bolt mount but I don't want tp put much pressure on that for obvious reasons. Should I support the engine, take the right side bolt out and lower the engine or will I be really in trouble then? Ideas?
« Last Edit: March 11, 2018, 09:04:08 pm by gsun »

Online Bud

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Re: engine mount problem
« Reply #1 on: March 11, 2018, 07:34:06 pm »
You might have someone lift on the front wheel while you try to get a bolt through.

Offline jwh20

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Re: engine mount problem
« Reply #2 on: March 11, 2018, 09:11:58 pm »
Loosen the upper two bolt and that will give you enough play to get the lower bolt in.  Then as you tighten it will pull things into the right spot.

Note that Kawasaki says to replace the bolts if you remove them but I think that's unnecessary but they do require BLUE (i.e. non-permanent) thread locker.  You should see the remains of the factory thread locker, which is red in color, but not permanent.  Try to clean as much off the threads as possible.
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Offline gsun

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Re: engine mount problem
« Reply #3 on: March 12, 2018, 12:24:56 am »
I'll give that a try. That should let the engine drop a bit. Going to put a jack under it first.

Offline jwh20

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Re: engine mount problem
« Reply #4 on: March 12, 2018, 12:56:21 am »
I'll give that a try. That should let the engine drop a bit. Going to put a jack under it first.

You can do that but it's not necessary.  Both of these mounts are removed at the same time when checking/adjusting the valve clearances.  The bike doesn't collapse although I wouldn't ride it like that.
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Offline Deepsea

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Re: engine mount problem
« Reply #5 on: March 12, 2018, 07:59:43 am »
It's a very good idea to run a thread chaser or tap into the hole before replacing the bolt just to clean out the old three locker then blow it out with compressed air.
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Offline gsun

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Re: engine mount problem
« Reply #6 on: March 13, 2018, 12:52:19 am »
Did as jwh20 suggested and it worked. Loosened the two top bolts. Had to also take out the bolt that goes in the middle of the subframe. It's another subframe part I believe. Then I jacked up the frame. Could not clean out the hole because, for some reason, my tap set does not have that size! Not much junk in it fortunately. After getting that bastard in I took each of the other bolts out one at a time and applied locktite and torqued them back in. Now I just have to redo my Rostra mount because the bars are in the way.

Thanks to all!

Offline jwh20

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Re: engine mount problem
« Reply #7 on: March 13, 2018, 01:17:34 am »
Awesome!
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Offline Bigfoot_16

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Re: engine mount problem
« Reply #8 on: March 13, 2018, 10:46:14 pm »
Gregg, I found the correct size tap at Pep Boys. That's the only place I could find it. To my surprise, it's made by Kawasaki.
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