Jump to content

Olivier

Members
  • Posts

    9
  • Joined

  • Last visited

Posts posted by Olivier

  1. As a follow up on my tappet/camshaft failure; I've been struggling to take the timing system out, mainly because of the 32mm nut on the crankshaft. I was finally able to remove the camshaft today. The lobe corresponding to the damaged tappet doesn't look good. Next step, I'll take the camshaft to Moto International, they have proposed to look at the camshaft, if it can be rebuilt (acceptable cost), or if I need a new one :-(

     

    Pictures below

     

    attachment=11461:Camshaft_1 (Medium).jpg]

    Camshaft_2 (Medium).jpg

    Camshaft_3 (Small).jpg

     

     

    Olivier

    Camshaft_1 (Medium).jpg

  2. Good idea, I'll check with Moto International,

     

    My main concern, is that a new Tappet + CamShaft + misc is going to cost me $450++. I don't feel confortable replacing parts, without knowing the root cause, and make sure it'll not happen again. If the second tappet (intake) was worn the same way, I will understand the oil/zink, but in this case the "bad" tappet lost 0.4mm within 200 miles, when the other one on my left head lost 0mm. I'll check the 2 others tappets when I'll take the Camshaft out.

     

     

    Oliver,

     

    There have been a few failures on other Guzzi's just like what you have. The cause could be in the hardening process that Guzzi uses or from lack of zink in the oil. It is very hard to find out just how much zink is added to the oil as many manufactures don't really list it. The zink level has been reduced in many oils the last few years so that the engine oil would not damage the cat converters on cars/motorcycles. The zink is what is needed for the high rub area's like the cam lifters and cam lobes, heck, even the rocker arm tips at the valves. Many say to use a true racing oil (for off road use) while others say to add an additive (ZDDP) with your favorite oil.

     

    Maybe touch base with Moto Internationl as they are a great dealership and may know more about this problem.

     

    Mike

     

    And while doing all of the above, I would pull the oil pump out to inspect it as it gets unfiltered oil and could be worn/damaged from metal going through it.

     

    What type of oil were you using in your bike?

     

    Mike

     

    Mike,

    I use Motul 5100 ester 15w50, I buy the oil from Moto International in Seattle, and have changed oil and filter every 3k miles. I wonder if the abnormal wear on 1 tappet only could come from a deffective valve spring; if the effort on the tappet is more important than the others, it will wear faster.

     

    Olivier

  3. And while doing all of the above, I would pull the oil pump out to inspect it as it gets unfiltered oil and could be worn/damaged from metal going through it.

     

    What type of oil were you using in your bike?

     

    Mike

     

    Mike,

    I use Motul 5100 ester 15w50, I buy the oil from Moto International in Seattle, and have changed oil and filter every 3k miles. I wonder if the abnormal wear on 1 tappet only could come from a deffective valve spring; if the effort on the tappet is more important than the others, it will wear faster.

     

    Olivier

  4. Hi,

    I have a 2002 V11 Le mans. I have noticed recently some "clicking" noise coming from the left head cover. I figured out the bike was due for valve clearance. I did open the head cover and found the intake valve set correctly, and the exhaust set to 0.8mm!! I did adjust (0.18mm), check the Right side, which was set correctly, closed everything, the noise was gone. 2 weeks later and about 200miles, same noise came back, from same left side...damned. I opened the cover again, intake valve clearance OK, exhaust valve clearance was at 0.6mm!! I checked if the adjust bolt/screw was loose, it wasn't. I then decided to check pushrods and tappets, and surprise, I found the exhaust tappet pretty wear/damaged and shorter than the intake one (picture enclosed). I'm wordering what could have caused this, and why only one tappet out of the 4 would have been damaged? I removed the complete head to access the tappets, but I cannot access the camshaft, without removing the timing system, I'm wondering now if I should check the camshaft to verify if the lobe has been damaged as well. Any recommendation?

     

    Olivier

    Seattle, WA

    IMG_3857 (Large).JPG

  5. The seller mentioned a "swollen tank" from using ethanol gasoline. Has a brand new $2K painted tank as part of the deal. I had not heard about a problem with ethanol swelling tanks.

     

     

    I do have a swollen tank on my V11 Lemans 2002. I believe this is a common issue on plastic tanks. The ethanol modify the properties of the plastic, which expands. It's mainly visible close to the seat, and just above the air box plastic cover. When I remove the screw that hold the tank in the back, I have as well difficulties to insert the screw back, due to misalignment of the hole on the tank with the frame. I had the same issue on my previously owned Ducati, the gas tank was replaced by Ducati under warranty.

     

    Olivier

  6. I don't know if a centerstand is still available from Moto International or elsewhere but they do sometimes turn up on ebay. I use the Moto Guzzi shop stand to jack my bike for wheel removal. It's simple to use and it works well.

    http://www.v11lemans.com/forums/index.php?showtopic=2356

     

    There have been lots of threads here on left side wheel bearing failures. I don't know why yours went out at such a low mileage (water infiltration from pressure washing?), but if the spacer that KB mentioned is OK I'd suggest that you just check all of the wheel bearings every time you have a wheel off for a tire change. I changed my front and rear wheel bearings as soon as I felt any roughness when turning them with the wheel off so I wouldn't end up stranded when they failed completely. I think I did the rear at around 15k miles and the front at about 25k.

     

    You also might want to consider servicing your cush drive the next time you have the rear wheel off.

    http://www.v11lemans.com/forums/index.php?showtopic=11820

     

     

    I bought last week online, from MG cycle the workshop stand for the V11. They still have some in stock: http://www.mgcycle.com/product_info.php?products_id=1567

    Olivier

×
×
  • Create New...