Drive alignment with cold fusion tool. Am I close enough? With a video.

[DrGonzo]

I was wondering if anyone can chime in. First build. Installing pump with CF alignment tool. It says it should slide smoothly. After trying combos of shims everywhere I got it very close. So close I can't even tell on which side it's catching. It takes very little pressure to get it through. Watch the video and let me know is this good enough?

 

[Roseand]

How much does the driveshaft flex when you remove the bushing? The biggest thing is you don't want the driveshaft to flex, ideally at all when installing the midshaft. On my RIP I was able to get it aligned good enough where I could basically fling the bushing into the mount with just a little rubbing.
Two days ago I aligned it I'm able to fling it and it get it about 1/3 of the way in with no resistance and then I have to lightly push it with 1 finger to slide on. My midshaft went on super easily still.

Very curious to hear other people's experience. It can be hard to get it spot on.

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[DrGonzo]

Thanks. I would like to get it perfect. Right now I do not see any flex on the shaft. I can lightlyrics tap the bushing in but definitely can't fling it in there.

I can't believe anyone could get this close without using the CF tool. Which makes me think it is probably good enough.

 

[Roseand]

With the rubber housing in the midshaft and the rubber dampner, I really wonder how crucial it is. But to get it almost perfect you may need to take a reamer to your pump bolt holes.

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[DAG]

It could also be your shafts runout. If its tight on one side test spinning the shaft by hand 180 degrees and see if it becomes tight on the other side. If you have alot of runout its always going to be tight at one spot.

 

[eastcoastjumper]

You might need a thin midshaft shim like oem uses. When I align my pumps the tool slides in without catching. No pushing necessary it's silent. Your shaft could also be slightly bent( have runout) spin it 90* check it, spin it again 90* and keep checking


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[DrGonzo]

It could also be your shafts runout. If its tight on one side test spinning the shaft by hand 180 degrees and see if it becomes tight on the other side. If you have alot of runout its always going to be tight at one spot.

Thanks. It's actually a brand new shaft. I had to swap them going from an 08 SJ to a rickter edge. I appreciate the response.

 

[DrGonzo]

You might need a thin midshaft shim like oem uses. When I align my pumps the tool slides in without catching. No pushing necessary it's silent. Your shaft could also be slightly bent( have runout) spin it 90* check it, spin it again 90* and keep checking


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Thanks so much. That's what I needed to hear. I will keep working at it.

 

[cookn]

For years everyone just tossed the pump in and shimmed the back to mounts, I understand in today's standards the need for perfection which is really something that doesn't exist at all. I think you are over thinking it but to each their own

 

[DrGonzo]

For years everyone just tossed the pump in and shimmed the back to mounts, I understand in today's standards the need for perfection which is really something that doesn't exist at all. I think you are over thinking it but to each their own

Thanks. That's why I wanted people's opinions. If I could change my user name it could be Captain Overthinkin It. This is my first aftermarket hull and build and I am guilty of over thinking everything. When I did my SJ I'd jump into anything.

 

[STEVEN HOLTON]

II

Thanks. That's why I wanted people's opinions. If I could change my user name it could be Captain Overthinkin It. This is my first aftermarket hull and build and I am guilty of over thinking everything. When I did my SJ I'd jump into anything.

Just got accused of the same thing and for the same thing lol
I'm a newbie but I have mechanical experience and hear how everyone is bleating about how bad alignment destroys your ski but exactly how accurate is only gained by experience or from someone with experience.