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Forum Inlägg postade av Klug

  1. B30 vs AQ170

    i Volvo TGB 11/13/20

    Postad

    Hello all,

     

    sorry for writing in english...

     

    I've been offered (to buy, not free) some parts lately.

    A B30 block with AQ170 cylinders head by someone, a AQ170 cylinders head by someone else.

     

    I have not found a lot of information about the differences between the B30 and AQ170 cylinders head.
    It seems (to be confirmed) the AQ170 has bigger valves and stronger springs.

     

    Does anyone knows more?

     

    Is there a point in swapping the original B30 cylinders head on a TGB with an AQ170 head?

     

    BTW, if anyone is interested, here's the full workshop manual for AQ170 (and other Penta engines of the same family).
    http://www.alcanboats.com/newsite_wordpress/wp-content/uploads/WorkshopManual_VolvoPenta_AQ105toAQ170ABC.pdf

  2. Kalles Volvo C303 PRV-V6

    i I garaget - In the garage

    Postad

    Reviving a very old thread.

     

    It might be the one talked about in this page (sorry, it's in french): http://www.dakardantan.com/forum/viewtopic.php?p=15334

     

    Official conversion/preparation by the company building the V6 PRV engines.

    Engine tuned to 3.0L instead of 2.8L.

    Registered in the Paris-Dakar race in 1985 but crashed.

    Was brought back to France, rebuilt (and kept the V6) then given to "Medecin sans frontières"...

    • Like 3

  4. Air lockers switches

    i Volvo TGB 11/13/20

    Postad

    the difflocks operates by vacuum so you can translate the pressure to negative 0-1 bar or kg/cm2  (-1bar)

    I don't know what is the needed pressure to operate the difflocks.

    -1 bar? 

    -2 bar?

    More? Less?

     

    If the valves you found is interely mechanicly operated they might work even at low pressure but it depends on the design of the valve.

    However, a spring applied solenoid needle valve shoud do the trick since it is less dependent of the system pressure when it seals.

    Got to try then...

    Less than 5€ (coming from China) is not expensive, I'm gonna buy a bunch of them.

     

    Fredrik L (and others) have modified the switches for the diffs, maby some information in this thread:

    Now digging in the thread, thanks.
    • Like 1

  5. Air lockers switches

    i Volvo TGB 11/13/20

    Postad

    Hello.

    I'd like to replace the genuine switches (front locker, rear locker, PTO, winch) by some more "modern" switches, either by using solenoids air switch (ARB or equivalent?) or manual rocker air switches, with protection covers.
    The idea would be to loose less room than the genuine switch (that are big), move the PTO/winch switches next to the difflocks ones (behind the driver seat is not easy to use) and have a more simple piping distribution under the car.

     

    Has anyone already done that?

     

    Does anyone knows what is the normal value for the depressure (depression pressure?) on the truck? Maybe it's somewhere in the documentation but I did not find it (yet).

    I found some cheap manual rocker air switches, that are supposed to work for a 1.5-8 kg/cm2 pressure, I wonder if they can be used.

  7. Skivebremser til C300-serien (tgb11/13/20)

    i I garaget - In the garage

    Postad

    YW.

     

    I showed your solution to a friend of mine and he told me something like: "This is for a 6x6 that is much heavier, could it work with a single caliper for the front wheels on your 4x4?".

     

    I obviously was not able to answer  :(

     

    I told him about the double braking on front wheel but that was all I could think about to keep the two calipers.

     

    Do you have any idea about this?

  8. Skivebremser til C300-serien (tgb11/13/20)

    i I garaget - In the garage

    Postad

    Martin,

     

    tiny mistake (I think) in the 4x4 kit: "4x (actually 3 left and 3 right hand) 330x32mm vented brake discs by ATE." while it should be "2 left and 2 right".

     

    About the wheel archs, you say there's a picture here (on the forum), maybe adding a link would be nice if anyone wants to see it?

     

    Prices are with VAT, will you be able to sell ex-VAT (EU company buying)?

  11. Skivebremser til C300-serien (tgb11/13/20)

    i I garaget - In the garage

    Postad

    @Tamaz, my question was more about tire size than rim size.

    My understanding was that 17" was chosen to have enough room for the calipers.

     

    I've read here and there that 315/75R16 or 35x12.5R16 was the "best" dimension for 4x4.

    My C303 was fitted with 900x16 tires when I bought it, it was nice on (high speed) roads but they felt too tall (eating too much torque) on tracks (especially in the Alps). 

     

    6x6 have a different ratio, that's why 37" sounds (to my knowledge) ok with them.

     

    If I chose this way (this disc conversion), then I'll go with tiagra's rims.
    So, with a 17" rim what would be the best size for "easily available in Europe" all terrain (not mud) tire on a 4x4?

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