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  1. Tunify

    Boat Wanted Wtb or trade 2120-2320

    https://www.boattrader.com/boat/2007-parker-2120-sport-cabin-8841995/ Does anyone else see a problem here?
  2. Tunify

    Permatrim Bolts Breaking.

    Response from tech service at Permatrim. Apparently, Andrew Manuo works on Sundays. Andrew, The two outboard bolts holding the Permatrim to my F300 Yamaha recently failed below the screw heads, The threaded shafts, nuts and washers remained in place held by the adhesive sealant. The...
  3. Tunify

    Permatrim Bolts Breaking.

    I sent an email off to Permatrim questioning the 10 ft-lbs torque specification in their installation instructions. I will post any reply.
  4. Tunify

    Permatrim Bolts Breaking.

    Torque Values Stainless Steel Bolt Table Chart The above link lists the maximum design torque value of a 1/4 - 20, 316 SS bolt as 78.8 in-lbs (6.6 ft-lbs). These are dry thread values. Any lubricant, such as uncured 5200 will act to reduce these rated values.
  5. Tunify

    Permatrim Bolts Breaking.

    I found two broken bolts on the Permatrim on my new to me 2320. I assumed the bolts had been over torqued by the appearance of the broken surfaces. I have no idea what they were torqued to. The 10 ft-lbs mentioned above is way over the rating of a 316 SS 1/4-20. Do the install instructions call...
  6. Tunify

    Permatrim - looking for feedback

    I'd be surprised if the forces acting on the Permatrim broke these screws. The unit is still tightly bonded to the AV plate with adhesive. I suspect the fasteners may have been over tightened and/or had quality issues when installed.
  7. Tunify

    Permatrim - looking for feedback

    Keep an eye on your Permatrim fasteners! While draining my lower unit lube yesterday, I discovered two of the mounting bolt heads were sheared off. The bolts and locking nuts were still held in place by the mounting adhesive. This Permatrim was installed before I acquired the boat last fall...
  8. Tunify

    Permatrim caused cav plate to crack?

    Weld it up, grind it down and throw some paint on it. You now have pre-drilled guides holes to mount the correct Permatrim. The tuna will be here soon!
  9. Tunify

    Permatrim caused cav plate to crack?

    The Permatrim that came with my 2320 is also mounted below the AV plate. It is also bedded using a generous amount of adhesive. (5200?) I could see how top mounting, combined with possibly loose screws could put some uneven loads on the AV plate.
  10. Tunify

    How is my 2300DV sitting on the trailer?

    You might want to look at some adjustable hitch mounts to get the right drop or lift for your particular truck/trailer match up. Weigh Safe has some good options. https://www.weigh-safe.com
  11. Tunify

    Getting bow down on 2300

    My new to me 2017 2320 SC, F300 came with a Permatrim installed and drop fins added to the stock Lenco tabs. With the standard Yamaha prop it will easily run bow down at 20 mph. Maybe a little less. Bow rise on hard acceleration is significantly less than my previous 2600 Striper. I think I am...
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