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  1. #1
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    I need a bit of advice here, Recently my brother bought a 77 sebring with a panther pump. He has a mildly built 455 olds which we paid to have installed. Anyways we got the boat back and it was making this vibration thru the hull. We inspected the boat and notice the "u-joint" had some slack in it and that the motor was mounted crooked. Well my brother got into a tiff with the mechanic and he is not going to fix it. So we have decided to do it. My question is this; Is there and special measurements that we need to measure? or making sure the u-joint is straight and level good enough?
    Last edited by riverking; 06-01-2010 at 08:07 PM.

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  3. #2
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    Anyone?

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    Senior Member skippers WFOT's Avatar
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    there were a couple threads in the past 30 days about this. you need to just do a search and have an angle finhttp://www.performanceboats.com//showthread.php?t=65165&highlight=driveshaft+angled er.
    Last edited by skippers WFOT; 06-01-2010 at 09:24 PM.

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  6. #4
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    I saw that thread skipper but I am not having an angle issue. the Motor is pointing to the right and the rear is pointing to the left. However the angle seems good just seems to be some slack in the u joint and the u joint looks like its bending. so the motor looks like this / / insead of this ||

  7. #5
    Senior Member skippers WFOT's Avatar
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    at that point i think you would just have to sight it in. if your (angle) is good for the 2* or whatever.....my only concern now would be really close bolt holes because your adjustment is only going to be about a 1/2 inch or so. unless you yank the engine and glue and dowel... and re-set it mark move engine out of the way and re-drill blah blah blah

  8. #6
    Horsepower sells Engines lefty's pride's Avatar
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    its all relevant cocked in the holes is still an angle and it needs to abided by the same rules as the "angle " your thinking of although you cant measure it the same way parallel to the pump is the best way to tell you how to do it. center of the crank snout to each rail equal, center of the fly wheel to each rail equal. if the pump is not parallel in the boat you are kinda screwed
    "Horsepower sells Engines but torque wins races."
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  9. #7
    Senior Member skippers WFOT's Avatar
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    so you payed to have the engine set...or just a r&r job. that would be the difference in their liablility

  10. #8
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    From not knowing or seeing the set-up I will tell you first off a straight line,zero angle with u-joints will create a vibration good enough to rattle the house down. U-joints are made to work with a "off" angle installation. If all is perfectly in line then a solid drive line is the way to go. IF it were me I would first take the drive line out and bolt the motor down and fire to see if the vibration goes away. If it doesn't then look at the motor. If it does then look at the condition of the drive-line. Then work from there! M

  11. #9
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    We paid to have it set. Ok so measure from each stringer to the shaft and get the center angle there and then hook the u joint? If I'm following right? And if I can't get it centered I'm screwed? The vibration sucks just want to reduce it. The pump was rebuilt the motor had zero problems when pulled from his old boat.

  12. #10
    Senior Member jet460's Avatar
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    Are you sure the u joint is good to begin with?
    If it is shaking that bad, it just might be toast.

  13. #11
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    Well good news seems my brother and our mechanic have squared things up and well be fixing the boat we talked about the u joint being bad and he is going to see why it's vibrating the boat. Thanks for all your help! Also I'd like to add I dig this panther pump it really has a nice hole shot and seems to be well built. I have a American turbine with a droop and a place diverter and a new loader and his stock panther beats me out of the hole. Not bad.

  14. #12
    Cas
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    Quote Originally Posted by riverking View Post
    Also I'd like to add I dig this panther pump it really has a nice hole shot and seems to be well built. I have a American turbine with a droop and a place diverter and a new loader and his stock panther beats me out of the hole. Not bad.
    Just tell your brother not to add much more horsepower to it, if any, or he'll probably end up being disappointed. Panthers can handle 450, maybe 500, horsepower before they end up being overpowered causing cavitation issues. There are some hulls and set-ups that can handle more but it's not worth the chance.
    You're right though, with a mildly built engine in front of a tight Panther, they do have a really good hole shot.

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