Darmah Engine Overhaul

Ray O'Donohue · Post by **Ray O'Donohue** » Thu Jan 27, 2011 4:55 am

I was once shown an extremely simple balancing test for a 90 degree v-twin,and I have forgotten it. Also: The problem with going to a heavier piston is the need and method to ADD weight,right?

Ray O'Donohue · Post by **Ray O'Donohue** » Thu Jan 27, 2011 5:00 am

"Mallory metal",I was once told, is used;slugged/threaded into holes bored in the flywheels,All this,once again, says a lot for stock or lighter pistons.(Assuming the the engines in a particular batch were put up with well balanced cranks! I'd like to hear if anyone has any firm insights on that.)

Ray O'Donohue · Post by **Ray O'Donohue** » Thu Jan 27, 2011 5:32 am

Look here:http://www.foxperformanceengines.com/crank.htm This gentleman seems to know what he is doing!

hashashan · Post by **hashashan** » Tue Feb 01, 2011 3:09 am

what are the benefits, disadvantages of a lightened crank/flywheel?
has anyone did this to his bevel?

Ray O'Donohue · Post by **Ray O'Donohue** » Tue Feb 01, 2011 5:38 am

I think that gentleman's text gives us a great explanation. I think I would go with his $149. package,without any lightening,for the street.

hashashan · Post by **hashashan** » Sun Feb 20, 2011 2:38 am

Hey guys, does anyone know what is the serial number of the crank bearings? the ones that sit between the crankshaft and the conrods.

wdietz186 · Post by **wdietz186** » Mon Feb 21, 2011 6:53 pm

The bearings you are refering to are usually supplied as a set including rods,bearings and crank pin.Installation requires pressing the crank wheels apart and back together,It is a specialist job and not cheap.

hashashan · Post by **hashashan** » Mon Feb 21, 2011 11:53 pm

I know that. I have a specialist who will do it for me. I just need to order the bearings. for some reason the ducati supplier in israel is not fammiliar with old ducati's and doesnt know the serials

shenglu · Post by **shenglu** » Tue Nov 08, 2011 5:17 pm

Tapping shaft, and pull the case, in addition to holding at 90 degrees the kickstart lever. Should do so. Editorial review your photos, I see you have a reg. Allen bolt your ENG. It's more than one sump drain intervals.

hashashan · Post by **hashashan** » Tue Nov 08, 2011 11:49 pm

reviving an old thread.
The guy who was working on my crank finally finished it(yes it took him nearly a year to do it)
noticed that all my crankcase bearings are dead

so need to replace all of them.
two questions:
I still have one gear in my crankcase(the one with two bearings inside), how do I take it out?

I noticed that the main crankshaft bearings are really expensive, however I found them at a bearable price here with a local dealer, they are FAG7307B.TVP/C3 will these do the trick?
He also has something called high precision bearings which are much much much more expensive something around 200$ per one bearing, is this precision necessary? or I can just use the one I mentioned?