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engine 826

Started by pepeducat, June 03, 2015, 12:48:19 AM

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koko64

#15
June 03, 2015, 11:41:59 PM
 [thumbsup] Cool.
Looking forward to the fin build.
2015 Scrambler 800

Nibor

#16
June 04, 2015, 04:13:39 AM
Quote from: koko64 on June 03, 2015, 11:41:59 PM
[thumbsup] Cool.
Looking forward to the fin build.

You and me both! [popcorn]

koko64

#17
June 04, 2015, 04:27:02 AM
Don't you get any ideas. Step away from the thread. ;D
2015 Scrambler 800

Duck-Stew

Re:
#18
June 04, 2015, 06:23:25 AM
Quote from: Raux on June 03, 2015, 08:00:10 PM
Sooo ive always heard the cases are different for the smaller motors. Just bearings?

Crank to transmission input shaft is the same, but center to center between the transmission input & output shafts are smaller on the 'small case' engines than the 'large case' engines.

More on that here:  http://bikeboy.org/duccapacities.html
Bike-less Portuguese immigrant enjoying life.

MotoPsycho

#19
June 04, 2015, 11:21:03 AM
Quote from: koko64 on June 04, 2015, 04:27:02 AM
Don't you get any ideas. Step away from the thread. ;D

We need a like button.
Edgar: '99 M750 - 2009 Indy Ducati Rat Bike Award Winner

Raux

Re:
#20
June 04, 2015, 04:16:26 PM
Cr  anks are different diameter too?

koko64

#21
June 04, 2015, 06:12:53 PM
Bike boy info seems to indicate that Pepe will need to be mixing and matching parts to suit, and customizing where necessary. Appears he has the means and ways to do it, and contacts to get all sorts of parts. I'll be watching this build with interest.
2015 Scrambler 800

Raux

Re:
#22
June 04, 2015, 06:35:31 PM
I do love this idea.

Raux

Re:
#23
June 05, 2015, 04:39:05 AM
Although would love to see a 1198 with 749r crank put together. Almost 2:1 oversquare. More than 1199. Puts it at 1030cc iirc. Short ti rods lightweight piston. Knife crank. Ti valves. Would be a screamer.

pepeducat

#24
June 05, 2015, 06:36:23 AM
Quote from: koko64 on June 04, 2015, 06:12:53 PM
Bike boy info seems to indicate that Pepe will need to be mixing and matching parts to suit, and customizing where necessary. Appears he has the means and ways to do it, and contacts to get all sorts of parts. I'll be watching this build with interest.

Indeed, the crankshaft must be touch on the masses and the alternator housing is to be machined and highly modified because the crankshaft 900 is longer 15mm alternator side than 750.
The whole project is based on two machining

koko64

#25
June 07, 2015, 05:57:53 PM
How's it going? [popcorn]
2015 Scrambler 800

pepeducat

#26
June 17, 2015, 11:33:18 AM
The crankshaft machining is to create two chamfer on the masses to rotate freely in the housings



ducatiz

#27
June 17, 2015, 12:59:28 PM
in the second pic, is the interference on the relative top or sides of the crank?
Check out my oil filter forensics thread!                     Offended? Click here
"Yelling out of cars, turning your speakers out the window to blast your music onto the street, setting off M-80 firecrackers, firing automatic weapons into the airâ€"these are all well and good. But none of them create a merry atmosphere of insouciance and bonhomie quite like a revving motorcycle.

pepeducat

#28
June 17, 2015, 01:19:53 PM
the interference on the  sides of the crank and the distribution shaft

ducatiz

#29
June 18, 2015, 04:32:59 AM
Quote from: pepeducat on June 17, 2015, 01:19:53 PM
the interference on the  sides of the crank and the distribution shaft

Ah.  so you will shorten the crank lobe?
Check out my oil filter forensics thread!                     Offended? Click here
"Yelling out of cars, turning your speakers out the window to blast your music onto the street, setting off M-80 firecrackers, firing automatic weapons into the airâ€"these are all well and good. But none of them create a merry atmosphere of insouciance and bonhomie quite like a revving motorcycle.
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