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DIY Engine Alignments

  • k-townguy
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5 years 10 months ago - 5 years 10 months ago #123 by k-townguy
k-townguy created the topic: DIY Engine Alignments
Found this on another forum that i frequent, figured this would be a good article on this forum




Your alignment tool is made up of three precisely sized shafts. The smallest fits exactly into your coupler. The next is sized small enough to pass through your bearing with room to spare, and is long enough to allow the first shaft to engage the coupler 1/2 inch before the larger shaft, sized to exactly fit the gimbal bearing contacts the bearing.

You should feel it bottom out when you slide the bar in. You want the alignment bar to slide in with very little effort and you want spiline marks to be equal all the way around the tip if the bar.

First thing you need to do is make sure your gimbal bearing is set.

Using your alignment bar insert it through the gimbal bearing and just so it starts to go into your coupler. (approx. 1/2 inch)

Using the palm of your hand, give the alignment bar a couple of "whacks" on the top,bottom and both sides of the bar. This will ensure that the gimbal bearing is at the correct angle to your coupler.

Coat the 1st 2 inches of your alignment bar evenly with grease.

Put a mark on your alignment bar near the handle so you can keep your bar in the same orientation when inputting and removing it from the coupler.

Slide the bar into the gimbal bearing and into the splines of the coupler and without twisting the bar pull it out.

You should see spline marks evenly around the end of the bar.

Are the even?

Yes.

Turn the engine over 90 degrees and check again.
Keep turning engine over in 90 deg. increments. This ensures that your coupler is centered and true. Ater the engine has turned 360 degrees go ahead and tighten and torque down the front motor mount top nuts. Check alignment once more just to ensure that the engine has not moved while tightening.

No

Are the spline marks heavy on the top or the bottom?

If they are heavy on the top you need to Lower the front motor mounts half a turn and check again. Keep doing this step until you achieve the results listed above.

Put marks on the motor mount nuts to make sure you turn them both in the same increments.

If the heavy spline marks are on the bottom you need to Raise your front motor mounts half a turn and check again. Keep doing this step until you achieve the results listed above.

Here are some videos to help you along.

This one is showing you when its not aligned. Notice how he uses his hand to smack it in.



This one shows you when everything is just right. Notice how easily the bar slides through the gimbal bearing and into the coupler.


1985 Bayliner 2150 Ciera Sunbridge
VP AQ 125A/270


"FOUR PLAY'N"
Why is there never enough time to do it right the first time, but always enough to do it right the second time.
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Last Edit: 5 years 10 months ago by k-townguy.

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5 years 10 months ago #124 by David
David replied the topic: Re: DIY Engine Alignments
Excellent information. I will try to cut and past into an article so the info is not lost. Unless you want to try your hand at creating an article. :whistle:

David
1990 Sunray Infinity
Twin 5.7 Cobra's

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5 years 10 months ago - 5 years 10 months ago #127 by k-townguy
k-townguy replied the topic: Re: DIY Engine Alignments
Lol ya maybe i should post it there eh...k will do

Now in the technical articles section

1985 Bayliner 2150 Ciera Sunbridge
VP AQ 125A/270


"FOUR PLAY'N"
Why is there never enough time to do it right the first time, but always enough to do it right the second time.
Last Edit: 5 years 10 months ago by k-townguy.

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5 years 10 months ago #133 by David
David replied the topic: Re: DIY Engine Alignments
LOL Great Job. I hope to post a how to for articles shortly. You can embed the videos just like you did in this forum. Thanks again Our Library is Growing ! :cheer:

David
1990 Sunray Infinity
Twin 5.7 Cobra's

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