JBS 700 Kit on welded 80mm Crank

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bushmechanic said:
looking forward to dyno graphs :twisted:

me too :D

but i need new main bearing,
and I have to wait for my pay, I no longer money :cry:

I have to do a dyno graph like this (cf http://www.frauenschuh-tuning.at )
jflc4136ps.jpg
 
no longer money is very sad :x

we could make a dyno graph just like that with Photoshop :D

I think realistically about 75 horsies from the kit as it comes in low tune

very excited though to see where yours is at.

Good luck!
 
they are SKF 22206 E/C3 30x62x20mm
but modified by ben ballard ton fit in his jbs bearing liner:

p1410111605.jpg

p141011160501.jpg
 
That should take care of any flex 8O

When was the last time you got anything from Ben,

I am still waiting :angry:

Cheers

spanner
 
got an MLS in dec 2009 :bounce:

22206 should be good, do you preload them contiman or run with some axial play?

most have already seen this is off the JBS website, outrigger bearings
 

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spanner said:
That should take care of any flex 8O

When was the last time you got anything from Ben,

I am still waiting :angry:

Cheers

spanner

I am in contact with Ben for over two months for other bearings, but it does not answer the phone, through mail he told me he sent me, but I get nothing at all :cry:

For the bearings, I have new ones (not modified by Ben), but they must be machined, and it is expensive! ("diamond cylindrical grinding")
 
bushmechanic said:
got an MLS in dec 2009 :bounce:

22206 should be good, do you preload them contiman or run with some axial play?

most have already seen this is off the JBS website, outrigger bearings

I would love to try this engine!

For bearings, no I did not do anything, they are tightly mounted on the crank, they are one part bearings ;)
 
I have some 22206s some old koyos rated max speed in oil 7800rpm and some newer nachi rated at 14000 rpm. i have noticed that it is the drive side bearing of mine an nj2206 that has a hard time so the next step for me is to add a 22206 to the drive side.

for non critical one off machining of really hard metal like the bearing lip there I have used a wood router with tungsten bits (30 000rpm) mounted in the x slide of the lathe. there are a lot of very fine splinters produced though so wear safety glasses :twisted:
 
contiman said:
spanner said:
That should take care of any flex 8O

When was the last time you got anything from Ben,

I am still waiting :angry:

Cheers

spanner

I am in contact with Ben for over two months for other bearings, but it does not answer the phone, through mail he told me he sent me, but I get nothing at all :cry:

For the bearings, I have new ones (not modified by Ben), but they must be machined, and it is expensive! ("diamond cylindrical grinding")


contiman, bearings are not that hard and can be turned in a lathe with a carbide tool have done this myself a few times now. Best Not to hold in a 3 or 4 jaw chuck but turn a arbor to clamp the bearing without distortion. Safer also.

Cheers spanner
 
The bearings are manufactured with 100C6 steel, it is very hard!

I have tried to machine (with my lathe) old bearings, the tool deteriorates very quickly, and it's not a good job
the only solution for me is cylindrical grinding
 
My engine is running :cheers: :bounce3:

[youtube:23hhv82w]http://www.youtube.com/watch?v=EQ1-Dm9cHf4&list=UU8RW2v_QMTW-vnspQz8zqBg&index=3&feature=plcp[/youtube:23hhv82w] :lol:
 
Looks great, how's it go?

Congratulations after the slog, big effort.
Steve
 

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