Ridemalibu Motorcycle Rentals & Tours – Los Angeles CA
  1. Ciao Guest - You’ve landed at the ultimate Guzzi site. In SoCal? See the SERVICE tab above for the best in service, tires, tuning and installation of our products or custom work. NEW FORUM REGISTRATIONS REQUIRE EMAIL ACTIVATION - CHECK YOUR SPAM FOLDER. ALWAYS TRY A SEARCH BEFORE STARTING A NEW TOPIC - Most questions you may have are already answered on the Forum with FACTS, NOT OPINIONS. PLEASE DON'T BE A DRIVE-BY POSTER: As a common courtesy, check back if you are posting elsewhere on the web. Note there's decades of Guzzi hands-on experienced help on this site, all whom give endless amounts of their time for free; BE COURTEOUS AND RESPECTFUL! There is zero tolerance on personal attacks and off-site links to other Forums or competing products. Also be sure to click on the STORE link also above for our 600+ product inventory, including many of our 100% Made-in-house-USA GTM products and engine kits. We appreciate the consideration, understanding and your business... past and future. And if you haven't seen our MotoCycle (not) art, click on the BUILDS tab above to see our work at our sister business; GT MotoCycles®-- WE ARE ONLINE ONLY - NO PHONE CALLS MADE OR RECEIVED.

low idle oil pressure problems

Discussion in 'BNS12 Chat & Tech' started by CMD, Sep 23, 2020.

  1. CMD

    CMD Just got it firing!

    Joined:
    Sep 1, 2014
    Messages:
    19
    Likes Received:
    3
    Location:
    Toronto, ON
    Hi everyone - got a weird problem and my dealer seems to struggle
    Oil pressure on idle when warm is approx. 15psi which when I rev up goes up to 60psi. As a result the dreaded red oil warning light comes on when it goes back to idle. This goes away when I speed up or when I ride but this comes back on as soon as I stop at a red light. Been told that pressures are within spec when rev'd up or during a ride but not at idle. Dealer does not necessary believe it is the oil pump since pressure goes up to within spec when riding. Been told it could be the caskets at/behind the oil pump (best case), the oil pump or even the caskets deeper within the engine (worst case) as this requires an engine re-build. Costs estimated anywhere between C$1,000 to $2,000 for a 6 year old N8VGT with only 39,600 kms (25k miles)

    Thoughts from the specialists would be welcome - thanks
     
    Last edited: Sep 23, 2020
  2. Bert Remington

    Bert Remington Tuned and Synch'ed GT Famiglia

    Joined:
    Nov 14, 2018
    Messages:
    70
    Likes Received:
    38
    Location:
    USA
    As I said here https://www.guzzitech.com/forums/th...e-sensor-again-on-norge-8v.20664/#post-163396 I think one of your sump gaskets has a small leak at an oil port. The two gaskets (sump and extension) are fairly easy to replace. Just make sure you remove all sump bolts (I believe there are 14) as some are kinda hidden. I can't recommend any gasket treatment. I doubt you have an oil pump or oil pump gasket problem.
     
  3. Raven

    Raven Cruisin' Guzzisti GT Famiglia

    Joined:
    Jul 3, 2017
    Messages:
    495
    Likes Received:
    229
    Location:
    Lac Ste. Marie, Qc
    These symptoms are the exact same as mine. However, now that the weather is cooler the light does not come on anymore.
    Man do air cooled bikes ever run nicely in cooler weather. Mine seems to thrive at 15 C.
     
  4. CMD

    CMD Just got it firing!

    Joined:
    Sep 1, 2014
    Messages:
    19
    Likes Received:
    3
    Location:
    Toronto, ON
    Thanks - how much time/effort is it to replace those gaskets?
     
  5. Kevin.NZ

    Kevin.NZ Cruisin' Guzzisti

    Joined:
    Jun 17, 2009
    Messages:
    436
    Likes Received:
    114
    Location:
    Howick, Auckland, New Zealand.
    could it be a faulty oil pressure switch
     
    john zibell likes this.
  6. Bert Remington

    Bert Remington Tuned and Synch'ed GT Famiglia

    Joined:
    Nov 14, 2018
    Messages:
    70
    Likes Received:
    38
    Location:
    USA
  7. CMD

    CMD Just got it firing!

    Joined:
    Sep 1, 2014
    Messages:
    19
    Likes Received:
    3
    Location:
    Toronto, ON
  8. CMD

    CMD Just got it firing!

    Joined:
    Sep 1, 2014
    Messages:
    19
    Likes Received:
    3
    Location:
    Toronto, ON
    That has been replaced already
     
  9. CMD

    CMD Just got it firing!

    Joined:
    Sep 1, 2014
    Messages:
    19
    Likes Received:
    3
    Location:
    Toronto, ON
    Well, turned out it was the gaskets as predicted by so many of you. One gasket had failed (corner ripped) and the second was about to. Of course, no gaskets at my dealer so had to wait until they arrived (from Italy or NYC) and once exchanged all good again. Managed one more glorious fall ride yesterday and bike was back to normal. Just clocked 40k so hopefully no more issues for another 40k or so
    Thank you all for your comments and advice.
     
    john zibell likes this.
  10. Moto-Uno

    Moto-Uno Cruisin' Guzzisti

    Joined:
    Aug 7, 2016
    Messages:
    121
    Likes Received:
    25
    Location:
    B.C
    Yahoo , thanks for getting back and you gotta love it when every thing to do the job is on the outside , pity about
    the million fasteners :) . Peter
     
  11. Raven

    Raven Cruisin' Guzzisti GT Famiglia

    Joined:
    Jul 3, 2017
    Messages:
    495
    Likes Received:
    229
    Location:
    Lac Ste. Marie, Qc
    Sounds like a winter project for me. The light flickered on today even though it's only 10 C outside.
     

Share This Page