Question about 2000 Moto Guzzi V11 Sport

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V11 Sport engine rebuilding

My V11 Scura engine seized due to the oil feeder coming loose in the oil sump. I would appreciate advice and tech info on how to rebuild this engine. I can do part of the work myself having sound mechanical engineering knowledge. I already have Pete Roper's excelent engine strip series posted on the Wildguzzi forum.

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My V11 scura also seized but I'm not sure of the cause as I had help stripping the engine I found that I could get a new factory surplus engine for less than the cost of reconditioning the existing engine. Corsa Itialiana had a deal on a new engine It may be worth your while enquiring from them before you get into serious expense.

Posted on Nov 10, 2008

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Posted on Jan 02, 2017

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Can the tensioner make the chain to be loose inside the engine an cause it to make noise an show sign of oil on the dashboard?


A loose timing chain tensioner will not cause the oil lamp to light. The noise you are hearing is most likely valve noise due to oil starvation. The oil light comes on when the oil pressure is too low to be safe for the engine. Most people believe it is to tell you the oil level is low. A low oil level can cause low oil pressure is the oil is below the sump, but low oil is not the cause of the light - low oil pressure is. This can be due to a number of things, such as a bad oil pump, faulty bypass regulator at the oil filter, loose sump pipe connection, or even an oil gallery plug that comes out internal to the engine. You need to stop using the vehicle immediately and have the oil pressure checked with a mechanical guage to determine if the problem is the oil ressure or the sensor that lights the light. The chain tensioner being loose CAN cause noise, and that itself is an issue that should be fixed, as in many vehicles a loose chain can jump time, or jam and break, and since many cars have interference engines, either of these scenarios can cause severe internal damage to the engine.

May 06, 2016 | 2007 Nissan Tiida 1.6

2 Answers

Car over heated and leaked out all the engine oil


car overheated probably because of lack of oil, your lucky the engine has not seized due to lack of oil. has the oil filter ruptured? Perhaps the sump plug has been loose and fallen out or the seal on the sump is corroded and allowing oil to escape?

Apr 09, 2014 | 2005 Kia Amanti

1 Answer

Piston doing engine


Hi, Ravi you may have squeaked your top end this is commonly known as "HEAT SEIZE" the piston heats up expands and becomes extremely tight in the cylinder bore and usually occurs mainly on 2 cycle engines right after a fresh top end rebuild, but it can also happen to brand new motorcycles, these are rare instances due to better quality control and education. Overheating failures that cause pistons to seize are many and each one should be carefully diagnosed to prevent future repeat offenders and the usual suspects are:
1. Lack of lubrication due to low or no oil.
2. Among the causes of lack of cylinder, lubrication is clogging of lubricator by dirt or waste, obstruction in oil pipes/lines, leaky check valves, leaky pump packing, broken oil pipe/line, oil too cold to feed.
3. Wrong type of oil used in premix or oil tank.
4. Improper premix ratio you should start with 32:1 as a baseline.
5. New rebuild piston to cylinder tolerances set up too tight.
6. Failure to follow proper break in procedures with a 16:1 premix ratio.
7. Loose fasteners causing intake, base, or head gaskets to leak or blown crankshaft seal, failure caused by age, overheating or walking. 8. Holes in the intake manifold bent or warped intake flange or reed cage any stray air coming into a cylinder will cause a super lean condition.
9. Improper assembly of reed valve gaskets.
10. Insufficient warm up time for temperature conditions before WOT.
11. Broken, pinched or cracked fuel line.
12. Carburetor fuel passages clogged or restricted from stale fuel varnish, ethanol sludge, dirt, rust, or fuel level in float bowl too low.
13. Main jet size too small or partially clogged
14. Air filter improperly installed, missing or not sealing.
15. Faulty or improperly adjusted oil pump and or cable.
16. Failure to bleed oil pump after a rebuild/replacement or running oil tank dry.
17. Engine coolant level too low, too old, or improper mixture ratio.
18. Radiator clogged, fins damaged, or faulty cap.
19. No liquid circulation due to failed oil or water pump.
20. Cavitation due to air in oil or coolant system.
21. Water and oil mix due to blown head gasket.
22. Timing retarded due to faulty CKP sensor or CDI.
23. Improper spark plug heat range (too hot) and or gap.
24. Excessive engine load, brakes dragging, clutch slipping, transmission lubricant level too low or viscosity to high.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
https://www.quora.com/How-does-the-motorcycle-engine-seize-and-what-are-its-causes
Repairing Seized Engines
Yamaha Libero Repair Service Manual Download Manuals Technical
OEM parts for Yamaha
http://www.codeine.org/Archive/Motorbikes/Yamaha/Yamaha-Libero-G5-User-Manual.pdf

Dec 17, 2013 | Yamaha G5 Motorcycles

1 Answer

Yz 85 head jam


Hi, Anonymous you may have hydraulic lock caused by excessive liquid in the cylinder or you have squeaked your top end this is commonly known as "HEAT SEIZE" the piston heats up expands and becomes extremely tight in the cylinder bore and usually occurs mainly on 2 cycle engines right after a fresh top end rebuild, but it can also happen to brand new motorcycles, these are rare instances due to better quality control and education. Overheating failures that cause pistons to seize are many and each one should be carefully diagnosed to prevent future repeat offenders and the usual suspects are:
1. Lack of lubrication due to low or no oil.
2. Among the causes of lack of cylinder, lubrication is clogging of lubricator by dirt or waste, obstruction in oil pipes/lines, leaky check valves, leaky pump packing, broken oil pipe/line, oil too cold to feed.
3. Wrong type of oil used in premix or oil tank.
4. Improper premix ratio you should start with 32:1 as a baseline.
5. New rebuild piston to cylinder tolerances set up too tight.
6. Failure to follow proper break in procedures with a 16:1 premix ratio.
7. Loose fasteners causing intake, base, or head gaskets to leak or blown crankshaft seal, failure caused by age, overheating or walking. 8. Holes in the intake manifold bent or warped intake flange or reed cage any stray air coming into a cylinder will cause a super lean condition.
9. Improper assembly of reed valve gaskets.
10. Insufficient warm up time for temperature conditions before WOT.
11. Broken, pinched or cracked fuel line.
12. Carburetor fuel passages clogged or restricted from stale fuel varnish, ethanol sludge, dirt, rust, or fuel level in float bowl too low.
13. Main jet size too small or partially clogged
14. Air filter improperly installed, missing or not sealing.
15. Faulty or improperly adjusted oil pump and or cable.
16. Failure to bleed oil pump after a rebuild/replacement or running oil tank dry.
17. Engine coolant level too low, too old, or improper mixture ratio.
18. Radiator clogged, fins damaged, or faulty cap.
19. No liquid circulation due to failed oil or water pump.
20. Cavitation due to air in oil or coolant system.
21. Water and oil mix due to blown head gasket.
22. Timing retarded due to faulty CKP sensor or CDI.
23. Improper spark plug heat range (too hot) and or gap.
24. Excessive engine load, brakes dragging, clutch slipping, transmission lubricant level too low or viscosity to high.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
Dirt Rider Magazine
Unsticking Stuck Engines
http://www.motogelnar.cz/manual/YAMAHA/YZ85_05.pdf
OEM parts for Yamaha
YAMAHA YZ85 Owner Manual

Dec 07, 2013 | 2005 Yamaha yZ 85

1 Answer

Clutch disc


Try MG cycle on the internet. www.mgcycle .com
Also, email assistenza@agostiniduilio.com They are in Italy but sell parts at a good price and they carry any part you may require. Hope this helps

Dec 09, 2009 | 2001 Moto Guzzi V11 Sport

1 Answer

Oil in the rad water but no water in the oil


I would say that there must be a small track between an oil channel and a water channel in a cylinder head gasket. The oil pressure is normally more than the water pressure, so the fluid transfer is one way - to the water system. The track will be very small, so flow will only occurs when oil pressure is above zero. It's all it can be, I think.

Sep 26, 2009 | 1983 Chevrolet Malibu

1 Answer

I Put 6.28 quarts of oil in my 2000 sport jeep cherokee when I changed the oil, will It hurt my jeep


If it is just a bit above the high mark on the dipstick then no it should'nt. If you have a turbo fitted then it's best to drain out the extra as the engine oil return pipe from the turbo empties into the sump. If the sump is over filled then the oil cannot get back to the sump it then builds up back the pipe and as the oil has to go somewhere if it cannot get to the sump it will be forced through the seals in the turbo it is then sucked into the intake. If this happen's then a recon. turbo at the least and if a lot of oil is sucked into the cylinders it can't be burned off so will seize the engine.

Aug 06, 2009 | 2000 Jeep Cherokee

1 Answer

I want to service my v11, what do i need in the way of filters and oils ?


recommened filters and oil.drain oil.remove oil filter replace with new,afte all oil has drianed refill to reccomendatios.check tranny gear oil .new plugs

Jun 29, 2009 | 2001 Moto Guzzi V11 Sport

1 Answer

1997 Mercedes Benz C280 - oil change


hello,sorry,i just read your comments,better to remove your sump guard,(be careful),to see the oil drain plug,

Apr 21, 2009 | 1994 Mercedes-Benz C-Class

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