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  1. #1
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    oblark's Avatar
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    850 crank and main beg recommendations

    Volvo 850 t5 crank main and big end brgs, apart from oem brgs what other makes to people recommend ?

    1996 850 - Self tuned M4.4 ECU with COP`s, ostrich 2.0 , green injectors, K24 turbo, 3.25" MAF, top mounted Dump Valve, RN Exhaust manifold, 3" downpipe with 200 cell cat, 2.5" Stainless exhaust, Brembo calipers, S60R brake discs, stainless RIP kit, 3" Throttle body,

    1983 240 - M4.4 ECU with COP's, ostrich 2.0, B5234T5 engine, M90 gearbox, green injectors, 3.25 " MAF, 2.5" stainless exhaust, custom strut brace, 2" banded rear rims, brembo front calipers sold

  2. #2
    New Identity
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    Dangerous Dave's Avatar
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    I too was looking at big end options when rebuilding my engine, there was a thread on VS they mention genuine for main bearings as they take less force than the big ends:
    http://volvospeed.com/vs_forum/topic...dard-bearings/

    In the end I went with genuine Volvo big ends
    http://volvospeed.com/vs_forum/topic...ig-end-shells/
    1996 Olive Green 850 AWD - Forged rods, VXR injectors, 19T, Ostrich 2.0, cold air con. Follow the project here
    1996 Nautic Blue 850 AWD - The daily, resisting the urge to modify

  3. #3
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    The force on the main bearings compared to the big end bearings is surely down to the size that they are?

    Big ends are 50.000 and the mains are 65.000.

    I don`t know why owners or DIY engine builders risk using different makes or designs which are not proven and risk a lot of money and work if the engine breaks up.

    Volvo went to sputtered when they no longer used the location method and so sputtered are essential to the well being and reliability of the motor.

    Of course as i am old school we used Hepolite or AE but who do Volvo use to produce to their spec. the engine parts?

    So many are swayed by media conversations and pub talk instead of the way things were done.....it has all been done before.


    Mercedes C320CDI Sport Estate 3 litre V6 7 Gear Auto
    Remap 290bhp 628Nm torque @ 1600revs 45.1mpg

  4. #4
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    Dangerous Dave's Avatar
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    Fair enough.
    1996 Olive Green 850 AWD - Forged rods, VXR injectors, 19T, Ostrich 2.0, cold air con. Follow the project here
    1996 Nautic Blue 850 AWD - The daily, resisting the urge to modify


 

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