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  1. harringtondav

    Winterizing, use E-0 stabilized gas or install shut off valve and run carb out of fuel?

    My boating pal with a '95 350 mag removes the fuel filter and runs the carb dry. He seems happy. ...until that time he forgot to replace the filter and drained his battery trying to restart in the spring at the ramp. ;) I ran Stabil through my '96 4.3 lx 4 bbl for 25 yrs and had no carb...
  2. harringtondav

    How can I make my Tracker 40 HP faster?

    I'm pessimistic about getting more power, torque, rpm from a healthy, properly tuned engine, and correctly propped boat without mods, which are fun for a while until the engine dies an early death. If you have deep enough pockets and are good at research, many O/B and I/O engines are the same...
  3. harringtondav

    Stalling, sudden low idle.

    I wondered if your pressure regulator may be restricting flow. 3-7 psi electric fuel pumps are common and relatively inexpensive. The challenge is finding one with pipe fittings so you can adapt it to the SS fuel plumbing in your boat. Below is a Carter pump that I installed on my 4.3LX. With...
  4. harringtondav

    Tongue Jack Failing

    You may have missed Duton-Lainson in your search for a replacement. I've owned two trailers over 30 yrs with D-L jacks with no trouble. https://www.dutton-lainson.com/products.php?cat=35
  5. harringtondav

    Stalling, sudden low idle.

    That is the idle speed screw. But if it revs in neutral but doesn't idle or deliver power, I suspect a dirty carb or fuel supply problem. Verify a clean fuel filter and that your electric fuel pump is good. Checking the fuel pump can be tricky. It doesn't start until the engine is running and...
  6. harringtondav

    Thoughts on trim pump and cover for volvo.

    Edit: It looks like the pump assembly has a sealed fluid reservoir. So looking for leaks could be easier if the assembly can be removed with just the cover attaching screws. The electric control cable has a reusable seal grommet that may allow you to pull the unit out far enough to check for leaks.
  7. harringtondav

    Thoughts on trim pump and cover for volvo.

    I'm winging it here. I haven't been into mine, but I've studied the shop manual, which is at our river house. I'll get back if I get better info. It will be a challenge since the cover is part of the oil reservoir. The cover/seal could be loose or leaking. Tighten it first and hope this fixes...
  8. harringtondav

    Thoughts on trim pump and cover for volvo.

    ....unfortunately mine. 2022 Regal with a VP SX drive. The trim pump is external, tucked inside the gimal ring against the transom plate on the starboard side. My first VP, so I don't know when they moved it into the water. When I saw it, I saw future trouble. Self contained reservoir, pump and...
  9. harringtondav

    Volvo Penta V6-240 Fuel High Pressure Dropping to Zero

    Also my question. I don't want to use the word 'worthless', but no load data comes close.
  10. harringtondav

    Trailer Tongue Too Long?

    Thanks for the input. My new truck/trailer is much longer than the previous where I could thread through obstacles easily when backing. Prior to 15 years ago we would trailer each summer weekend. Now with a river house and boat lift, its twice a year with the same obstacles. Learning curve...
  11. harringtondav

    Volvo Penta V6-240 Fuel High Pressure Dropping to Zero

    I graphed the same data from your 18 min run.rec. What jumps out to me is your injector PW is flat under 1 ms through your acceleration to over 5000 rpm. It held close to 3ms until you started accelerating then dropped to 1ms. Something seems wrong to me. Last summer when I was chasing poor...
  12. harringtondav

    Trailer Tongue Too Long?

    My bad. 6' wheel width. Important with short tongues for 90 deg backing. ...I've got plenty.
  13. harringtondav

    Trailer Tongue Too Long?

    And we both know how that works out for me. ;)
  14. harringtondav

    Trailer Tongue Too Long?

    New boat and trailer four years ago. Shorland'r trailer under a Regal 1900ESX. No complaints when towing. Good tongue weight and disc surge brakes. But I'm more challenged backing than with the previous shorter rig. I don't have the measurements, but the trailer rear tire distance from the hitch...
  15. harringtondav

    Volvo Penta V6-240 Fuel High Pressure Dropping to Zero

    Interesting. I believe the VP 4.3 DI engine is a GM 4.3 liter v6 ecotec3 lv3 for the most part sans exhaust manifolds, cooling, ECM etc. I wondered if you got the Delphi/Delco p/n from the VP HPFP. I was poking around an found the HPFP at a considerably lower cost than VP. I buy only boat OEM...
  16. harringtondav

    Volvo Penta V6-240 Fuel High Pressure Dropping to Zero

    You can attach the .rec files in a 7z zip file. Open the Diacom 'record' folder and right click on the file or files you want to attach. Select "Compress to...", and select 7z file. It will take a few seconds before the 7z file shows in the folder. These can be attached.
  17. harringtondav

    Volvo Penta V6-240 Fuel High Pressure Dropping to Zero

    To attach a .rec file, open the Diacom 'record' file and right click on the file or files you want to attach. Select "Compress to...", and select 7z file. It will take a few seconds before the 7z file shows in the folder. These can be attached.
  18. harringtondav

    Volvo Penta V6-240 Fuel High Pressure Dropping to Zero

    I'm air grabbing here. I suspect the high pressure relief fuel goes back into the fuel supply port's line against its 65 psi max pressure. The diagnostic manual states the supply pump is PWM to regulate its pressure, so I assume it would back off to compensate. ....haven't seen this on with...
  19. harringtondav

    Volvo Penta V6-240 Fuel High Pressure Dropping to Zero

    Still digesting what I've learned from you and @muc. HPFP is PWM. Earler this summer I was chasing a performance problem on my G5 250 hp engne. Muc suggested my low cranking voltage, similar to yours, could be messing with the ECM initialization. I replaced my four year old battery and saw some...
  20. harringtondav

    Volvo Penta V6-240 Fuel High Pressure Dropping to Zero

    I'm seeing the same data. I took a closer look at the engine workshop manual and sure enough, a connector is shown on the rear of the HPFP. Also spent time studying the ECM wiring. Each rail has a connector, and per the OP the starboard gets a signal from the ECM for fuel pressure. I got bleary...
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