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    Severe Empty Trailer Bounce

    My 8200lb tandem axle aluminum trailer bounces severely and vibrates my Chevy 2500 severely when towed empty. On my last trip home it vibrated so badly that on of the taillights broke off and the other was left hanging by the wires. There have ben no collision impacts to the trailer and the...
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    VP DPS-A- running two different pitch propellers?

    I have the above duo prop drive. I have been running F5`s for several years now with decent results, all but reaching max RPM`s. Reaching max 4600 with the F5`s. Engine max is 5000rpm. I recently obtained a set of F4`s. Is it possible to run one F5 and one F4 propeller at the same time without...
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    Bellows sealant, DPS-A?

    I will be replacing my drive bellows here in a few weeks on my DPS-A. What if any sealer should I apply between the bellows and the aluminum housing rim?
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    Volvo Penta prop help

    Can someone help me understand VP props. I currently have a DPS-A with stainless F5 props powered by a 5.7 GXI-J, 320 hp, The max RPM is 5K. I am not getting max RPM, only about 4300. My hole shot is good. What is the range that I need to move to get the higher RPM`s, do I go down to F4`s or...
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    DPS-A Bad Seal Somewhere

    I pulled my lower unit as I do every year for winterization. This year I found my drive oil slightly white in color. It appears I may have a very slow leak somewhere. I have pressure tested the unit and it held 15 lbs for 24 hours. Vacuum tests show a slow loss over an hour or so. Which seals...
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    New engine, wont start.

    I have replaced my 5.7 GXI-J this year with a new long block. Essentially a new block and heads. I transferred over intake manifold, distributor, ECM, fuses from old engine. New motor placed in boat and all hooked up. I went to start initially, fuel cell charges and primes, hear the traditional...
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    New motor, do I need to fill block with water?

    I have a brand new engine block sitting in my boat that hopefully I will start up tomorrow. Since the block is dry, do I need to fill the water jackets before I start or will the hose supplied water do that. I’m thinking that the thermostat will be closed and will divert all incoming water into...
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    Best riser gaskets?

    I need to be ordering new riser gaskets for my 5.7 GXI soon. I have Barr manifolds and VP risers. Who makes the best gaskets for this combination?, VP, Barr, Sierra, other ?
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    Exhaust manifold installation

    I am ready to install the exhaust manifolds on my new 5.7 GXI block. I am a big fan of Permatex avation#3 sealant. Would it be a bad idea to apply a thin coating of this sealant around the bare metal ports of the block and manifold while installing the gasket?
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    VP 5.7 GXI-j Setting Distributor T

    I am in the process of re-powering my engine. I have purchased a new VP GXI,320 hp long block and have some questions about distributor timing. I have installed the distributor and feel that I have it aligned properly with the engine in the #1 TDC position. I have read conflicting information...
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    Engine Swap questions 5.7GXI-J

    I`ve begun the process of swapping out my locked up 5.7 with a new long block 5.7. I will need to transfer some of the components from the bad engine over to the new block. In the process I am refurbishing/repainting some of the items as I go. Specifically regarding the sensors of the block...
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    5.7 GXI motor mount question

    I’m getting ready to pull my engine and have a couple questions as it pertains to the engine mounts. All wires, lines, cables and hoses have been disconnected. My question pertains to the front engine mounts. I tried loosening the large top nut with a crescent wrench but it just turned with...
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    VP 5.7gxi-j- rebuild or remanufactured block

    Unfortunately due to a series of unseen circumstances, I am in the need of a new engine block. I think my oil pump let go while at cruising speed. I need the forums advise on which direction to go. Do I have the existing block pulled and rebuilt or go the route of a reman long block swapping...
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    Separating Volvo upper and lower drive sections, DPS-A

    Need some advise. I'm trying to separate my DPS-A drive, upper and lower halves. I have removed the two bolts and four nuts as the manual instructs. I cannot get the two pieces apart. I have tried tapping with a rubber mallet and gingerly tried prying apart with a stiff putty knife to no avail...
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    Volvo Penta Fuel Cell Rebuild Video

    I just came across this Youtube video on how to rebuild the VP fuel cell`s. This guy says he will also rebuild for you for $200. For all of you guys having issues, you might want to reference...
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    Volvo Penta Gear ratio question

    What determines the gear ratio of an VP DPS-A outdrive? Is it the gearing in the upper housing or the lower housing? I may need to replace my upper and want to make sure I get the proper unit, 1.95.
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    DPS-A whining noise when in gear

    Splashed the boat for the first time this past weekend. Unfortunately I have a whining pitch when I put in gear. In neutral no noise, even when reved up.Gear shifting is smooth. The noise crescendo's as the speed increases and eventually is overcome by the engine noise. Reluctantly I ran it up...
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    Anode Replacement Question

    Replacing the Magnesium (fresh water) anode on my DPS-A outdrive this year. I have recently repainted the outdrive this off season. Do I need to sand down to bare metal, to allow metal to metal contact between the bottom of the anode and the aluminum drive housing?
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    Lower Unit Oil Question

    Needing to change my lower unit oil in the coming weeks. My DPS-A . I believe it calls for synthetic 75-90w, gl-5, non limited slip. Where I live it is difficult to find "non limited slip" oil. Is it safe to use synthetic limited slip of the same weight? What harm could be done by doing so.
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    VP Fuel Cell preventative maintance?

    I have an `08 VP GXI-J engine in my boat with about 350 hours on it. So far I have had no issues with the engine or fuel pump at all. I was thinking that while the boat is in winter storage that it might be a good time to take the fuel pump apart for a good internal cleaning and refurbishing. Am...
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