Big end bearing replacement?

The Douglas 2 1/4 HP (350cc) engine has a different crankshaft setup but which shares the same characteristic that big ends cannot be replaced, only the complete crankshaft/conrod assembly. The Douglas in the shed has been on its original set up for the last 100 years. Hopefully it will last a bit longer, despite lubrication being by total-loss splash and a hand pump. I wouldn't worry too much about the 961!

Having read the very informative article on the 961 Commando engine in Roadholder, I find that the crankshaft assembly is pressed and welded together with the big end and central main bearing in place. Is there any way the big ends and central main can be replaced without replacing the whole crankshaft assembly?

I will probably never own a 961, but as an enthusiastic home motorcycle mechanic, I would just like to know if there is a way. Maybe the factory does a re-conditioning service?

Welded Crankshaft is part of the Euro type 3 approval and it also part of the Anti-tampering measures that the EU are rolling out on new motorcycles. even the rear drive chain on the 961 as had the sound it makes recorded and has to come with in a DB noise level . the hand bars had to be the right length and so do the brake and clutch leavers the hoops and hurdles that this motorcycle company have had to go though are astounding, The EU Anti-tampering measure are so designed to put motorcyclist of buying a New Motorcycle. and the EU are also trying there level best to stop motorcycle being built in the first place, so you see why its taking so long for you to get your new 961. . just read some of MAG information on the EU protocol on motorcycles . Soon we will have a Euro type 4 approval. so when is this madness going to end . yours Anna J

Previously colin_sharpe wrote:

Having read the very informative article on the 961 Commando engine in Roadholder, I find that the crankshaft assembly is pressed and welded together with the big end and central main bearing in place. Is there any way the big ends and central main can be replaced without replacing the whole crankshaft assembly?

I will probably never own a 961, but as an enthusiastic home motorcycle mechanic, I would just like to know if there is a way. Maybe the factory does a re-conditioning service?

Welded Crankshaft is part of the Euro type 3 approval and it also part of the Anti-tampering measures that the EU are rolling out on new motorcycles. even the rear drive chain on the 961 as had the sound it makes recorded and has to come with in a DB noise level . the hand bars had to be the right length and so do the brake and clutch leavers the hoops and hurdles that this motorcycle company have had to go though are astounding, The EU Anti-tampering measure are so designed to put motorcyclist of buying a New Motorcycle. and the EU are also trying there level best to stop motorcycle being built in the first place, so you see why its taking so long for you to get your new 961. . just read some of MAG information on the EU protocol on motorcycles . Soon we will have a Euro type 4 approval. so when is this madness going to end . yours Anna J

I too am concerned about some of the more bizarre EU proposals regardingvehicles. However, I am pretty certain that the welded crankshaft on the 961 is an engineering choice, not a political one.

I too am concerned about some of the more bizarre EU proposals regardingvehicles. However, I am pretty certain that the welded crankshaft on the 961 is an engineering choice, not a political one.

Hello John well I have Been to Norton Motorcycles and seen engines been built before my eyes . and I was told its what they have to do as EU protocol . yours Anna J

Previously gordon_johnston wrote:

I too am concerned about some of the more bizarre EU proposals regardingvehicles. However, I am pretty certain that the welded crankshaft on the 961 is an engineering choice, not a political one.

Hello John well I have Been to Norton Motorcycles and seen engines been built before my eyes . and I was told its what they have to do as EU protocol . yours Anna J

Yours Anna J stay free

Previously anna jeannette Dixon wrote:

Previously gordon_johnston wrote:

I too am concerned about some of the more bizarre EU proposals regardingvehicles. However, I am pretty certain that the welded crankshaft on the 961 is an engineering choice, not a political one.

Hello John well I have Been to Norton Motorcycles and seen engines been built before my eyes . and I was told its what they have to do as EU protocol . yours Anna J

Ps and further more The New World order as No place for motorcycles . the Illuminati are trying there best to get rid of motorcycle transport. But they will have a very hard job So M.A.G needs your support to keep all motorcycle and there owners on the road without any erosion of there freedom ,its this very freedom that, The Illuminati are in fear of. They are the control freaks and are trying mind control on every motorcyclist and putting every obstacle in the way politically

Yours Anna J stay free

Euro type 3 approval????

Are you saying that the crankshafts on all cars have to be welded up?

Mike

Previously michael_sullivan wrote:

Previously anna jeannette Dixon wrote:

Previously anna jeannette Dixon wrote:

Previously gordon_johnston wrote:

I too am concerned about some of the more bizarre EU proposals regardingvehicles. However, I am pretty certain that the welded crankshaft on the 961 is an engineering choice, not a political one.

Hello John well I have Been to Norton Motorcycles and seen engines been built before my eyes . and I was told its what they have to do as EU protocol . yours Anna J

Ps and further more The New World order as No place for motorcycles . the Illuminati are trying there best to get rid of motorcycle transport. But they will have a very hard job So M.A.G needs your support to keep all motorcycle and there owners on the road without any erosion of there freedom ,its this very freedom that, The Illuminati are in fear of. They are the control freaks and are trying mind control on every motorcyclist and putting every obstacle in the way politically

Yours Anna J stay free

Euro type 3 approval????

Are you saying that the crankshafts on all cars have to be welded up?

Mike

Well since car crankshafts are a one peace forging it would be daft to weld them as well . yours anna j

Previously anna jeannette Dixon wrote:

Previously michael_sullivan wrote:

Previously anna jeannette Dixon wrote:

Previously anna jeannette Dixon wrote:

Previously gordon_johnston wrote:

I too am concerned about some of the more bizarre EU proposals regardingvehicles. However, I am pretty certain that the welded crankshaft on the 961 is an engineering choice, not a political one.

Hello John well I have Been to Norton Motorcycles and seen engines been built before my eyes . and I was told its what they have to do as EU protocol . yours Anna J

Ps and further more The New World order as No place for motorcycles . the Illuminati are trying there best to get rid of motorcycle transport. But they will have a very hard job So M.A.G needs your support to keep all motorcycle and there owners on the road without any erosion of there freedom ,its this very freedom that, The Illuminati are in fear of. They are the control freaks and are trying mind control on every motorcyclist and putting every obstacle in the way politically

Yours Anna J stay free

Euro type 3 approval????

Are you saying that the crankshafts on all cars have to be welded up?

Mike

Well since car crankshafts are a one peace forging it would be daft to weld them as well . yours anna j

Anna:

OK, I can understand that. But what does welding up the built up crankshaft have to do with getting Euro Type 3 approval?

Mike

Previously michael_sullivan wrote:

Previously anna jeannette Dixon wrote:

Previously michael_sullivan wrote:

Previously anna jeannette Dixon wrote:

Previously anna jeannette Dixon wrote:

Previously gordon_johnston wrote:

I too am concerned about some of the more bizarre EU proposals regardingvehicles. However, I am pretty certain that the welded crankshaft on the 961 is an engineering choice, not a political one.

Hello John well I have Been to Norton Motorcycles and seen engines been built before my eyes . and I was told its what they have to do as EU protocol . yours Anna J

Ps and further more The New World order as No place for motorcycles . the Illuminati are trying there best to get rid of motorcycle transport. But they will have a very hard job So M.A.G needs your support to keep all motorcycle and there owners on the road without any erosion of there freedom ,its this very freedom that, The Illuminati are in fear of. They are the control freaks and are trying mind control on every motorcyclist and putting every obstacle in the way politically

Yours Anna J stay free

Euro type 3 approval????

Are you saying that the crankshafts on all cars have to be welded up?

Mike

Well since car crankshafts are a one peace forging it would be daft to weld them as well . yours anna j

Anna:

OK, I can understand that. But what does welding up the built up crankshaft have to do with getting Euro Type 3 approval?

Mike

Well Ask the guys that came up with the EU rules Not Me