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  1. #1
    canuck's Avatar
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    Driveshaft front to back distance ?

    How much play should the driveshaft have front to back with the pump and engine bolted in place without the boot and carbon seal installed ?

    I did search and found someone mentioned 1/4" to 3/8". The manual has you draw two lines on the alignment tool shaft since I have an SBT alignment tool not oem I'm not sure if these numbers are relevant.


  2. #2
    JT jpt7779's Avatar
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    Mark the lines per the OEM manual, which should yield around 1/4".

  3. #3

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    Less than 3mm or .118", so says the manual.

  4. #4
    ptscon's Avatar
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    No point guessing if you have the alignment tool. Draw the two lines, insert and you should only see 1 of the lines.

    Just make sure the shaft inserts fully into the receiving side. I had to sand my sbt shaft because it would not fit into the receiver.

  5. #5
    Bob 1tommygunner1927's Avatar
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    Quote Originally Posted by canuck View Post
    How much play should the driveshaft have front to back with the pump and engine bolted in place without the boot and carbon seal installed ?

    I did search and found someone mentioned 1/4" to 3/8". The manual has you draw two lines on the alignment tool shaft since I have an SBT alignment tool not oem I'm not sure if these numbers are relevant.
    That someone may have been me.....Yes, you can do the measurement without the alignment tool as you described above. I did that only because my 2008 manual did not provide the two measurements to use on the alignment shaft. The 1/4" to 3/8" clearance still applies. Too much clearance is better (results in cavitation) than too little clearance (can push the hat off the C-clip which can disengage from DS=sinking).

  6. #6
    canuck's Avatar
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    I got the motor mounts changed, motor reinstalled and aligned, the distance marks in the shop manual do work with the SBT tool. I was between the marks so should be good to go just waiting on an R&D pump seal then the pump can go on.

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