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Toddavid

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    SE PA
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    Power!

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  1. I think 2016 was the first year for the new VPs (GenV?). I think they are also direct injected. Direct injected engines had a lot of teething issues in cars, and they still haven’t worked the bugs out. The biggest issue with Direct Injection engines is their propensity to build up carbon on the intake valves and the intake ports since there is no fuel to wash that combustion byproduct away anymore. I’ve seen cars need their valves and intake paths manually cleaned in as little as 50k miles. Now, that being said, the verdict is out on when the carbon build up issue will plague a boat engine, since the operational conditions are so different. But that doesn’t mean it won’t happen, these engines are still relatively new in the marine world. I have the previous gen version of that engine and love it, been trouble free for 300hrs so far. Other than that, note that the 264 got a tubular style arch starting in 2016, and they “upgraded” the arch appearance again in 2019. Not sure if you’re looking at one with an arch, but the tube construction aesthetics drove me to find a pre-16 model. 264 is a great boat for LG!
  2. Toddavid

    Stripped VP dipstick hole on drive

    We all play on the Upper Chesapeake, far from any ocean waters. In the Elkton, Havre De Grace, Chesapeake City, Betterton areas on the map. While it may be shallow at points, at least the bottom is soft. No rocks to really worry about. Our boat season will be a bit short next year, doing a two month RV trip out west.
  3. Toddavid

    Stripped VP dipstick hole on drive

    Haha, yeah, this could easily be a kit. One dipstick, one drill bit, and one 14x1.5 tap: $269.
  4. Toddavid

    Stripped VP dipstick hole on drive

    Finally go around to wrapping up this project. Instead of dealing with possible warpage on this bearing support piece, we decided not to weld and retap. Instead, we drilled oversize, tapped the hole and... made a new dipstick! (One of my guys at my shop made the dipstick, so not really “we”.) Made out of stainless steel, and we decided on a finer thread to provide more resistance to stripping in the future. We also laser etched the tip so I can now easily see the oil line. The old stick had no cross hatching and it was very hard to see how full the drive was with new oil. I leak tested the cap/stick combo for a few days, filling the cap with water, no leaks. I also applied some vacuum to the outside using a little plunger I had. Fingers crossed it holds.
  5. Toddavid

    Uh oh....what did I just do...?

    (But why would a bent skeg make a screeching sound when raising or lowering the drive? Sounds like bent rams.)
  6. Toddavid

    Stripped VP dipstick hole on drive

    Yes, I know, but moving the hole further down the channel also puts it above the moving parts of the top bearing of the vertical shaft. It currently sits above the void where the dipstick goes, in the center of the bearing. Moving it to above the bearing could result in it getting filled with oil and not being able to allow air to move through it easily, allowing some pressure to build in the upper case. Maybe not, who knows, but I don’t want to be the guinea pig.
  7. Toddavid

    Stripped VP dipstick hole on drive

    On second thought, I’ll still give the repair a shot. I can fashion a stainless blocker for that hole that I should be able to pull out after aluminum welding, and then dress the area back into shape with a die grinder before re-tapping. Worst case I buy a new cap.
  8. Toddavid

    Stripped VP dipstick hole on drive

    Theoretically, yes, but the current hole sits over the top of the bore where the dipstick goes, drilling a new hole further away moves it to sit over the top bearing plate. I assume this is a pressure equalization vent, not sure I want to compromise the function and risk having leaking seals, who knows how much oil that bearing plate flings around under operation. Just not worth it for $270.
  9. Toddavid

    Stripped VP dipstick hole on drive

    Welp, I pulled the cap today and ran into a show stopper, as far as repairing. Right at the threads, there’s a vent channel, at red arrows in photo below. Overdrilling to put in a thread insert will interfere with that vent opening, and welding it up and retapping will take a lot of finish work, with no guarantee of success. I’m just going to bite the bullet and buy a new cap, and measure the step height at green arrow to determine if there will be a shim issue. BOAT.
  10. Toddavid

    Stripped VP dipstick hole on drive

    We do aluminum welding every day at my shop. I can also laser scan the part before and after with our Faro to see if there was a dimensional shift. Why not?
  11. Toddavid

    Stripped VP dipstick hole on drive

    I’d be afraid of distortion doing welding on this item, given it’s part of the bearing support system.
  12. Toddavid

    Stripped VP dipstick hole on drive

    It’s not corroded. I think in my case I went by feel using a wrench too many times not realizing how fragile the threads were, as designed, and slowly deformed them over time as I did checks and oil changes, until they gave up the ghost. Strictly following torque specs seems to be imperative on this connection.
  13. Toddavid

    Stripped VP dipstick hole on drive

    I was a mechanic by trade, I have an excellent sense of when a fastener is cross threading. Search “VP dipstick stripped”, it turns out to be incredibly common, so watch out. The manual calls for 48-72 in lbs of torque and shows a flat head bit being used to tighten. Fair warning.
  14. Toddavid

    Stripped VP dipstick hole on drive

    Yes, saw that online, but the simple feeler gauge method seems to apply to older VP drives. My cap is a single piece like in this photo, it completely covers the shim area: http://www.volvopentastore.com/Upper-Gearhousing/dm/cart_id.354004987--session_id.191307170--store_id.366--view_id.775540 According to the manual I have, I’d have to check upper shaft gear lash with a dial gauge through the driveshaft hole and change the shims throughout the entire upper gear stack depending on the results. Ugh. Another reason just to repair this one. The manual shows the dipstick hole can be used as a lifting point with an eye bolt installed. Ironic given how this hole is so fragile it will cross thread if you look at it cross eyed.
  15. Toddavid

    Stripped VP dipstick hole on drive

    Thanks Curt. Looks easy enough to just pull the cap off and do a bench repair.
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