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rebuild, but not a honda
Posted: May 19th, 2009, 8:28 pm
by 100hp honda
in spare time i figured i'd do a rebuild on this and freshen everything up, probly do some porting to make it go faster
. it will be a cast piston, that should bring a smile to bob
Posted: May 20th, 2009, 9:25 am
by dannygraves
very cool katoom, bring her out to dumont one of these days!
Posted: May 20th, 2009, 8:12 pm
by 100hp honda
danny boy, if you run across a 440 you should pick it up. the magazines say they screem like a 250 but with 25 extra HP (89mm bore x 70mm stroke
). i swore i wouldnt buy another ktm, but if i can find a 440 for cheap i just might snag it.
Posted: May 20th, 2009, 10:09 pm
by 100hp honda
maybe bob wont be so happy. i just read the ktm manual and apparently the ktm piston is forged. who would of thought
. sorry bob
Posted: May 21st, 2009, 7:58 am
by dannygraves
Posted: May 24th, 2009, 9:17 am
by yota
some of the older ktm's, like maicos used mahle pistons. none better.
I've reused mahle's over and over and over and over .
Posted: May 24th, 2009, 9:18 am
by yota
some of the older ktm's, like maicos used mahle pistons. none better.
I've reused mahle's over and over and over and over .
Posted: May 24th, 2009, 8:37 pm
by 100hp honda
im not sure what piston it is. its no good now, i had to use a dremel to remove the wrist pin
Posted: May 24th, 2009, 10:02 pm
by CR500R7
Posted: May 25th, 2009, 9:57 am
by 100hp honda
i didnt have to destroy the piston but heres what i had to do: the wrist pin started to waller out in the wrist pin bore of the piston and created a "lip" between the wristpin and circlips, in order for the pin to slide out i had to grind the lip down. with a nikisil cylinder im sure its possible to re-plate the cylinder back to spec and re-use the piston if everything looks fine, unfortunatly mine is beyond help. its no big deal, ill get a new piston.
Posted: May 26th, 2009, 3:12 am
by CR500R7
Thanks you scared me for a second, had imagines of lunatic with dremel trying to remove wrist pin.
It makes sense now, its all good.
Posted: May 26th, 2009, 7:37 am
by dannygraves
CR500R7 wrote:Thanks you scared me for a second, had imagines of lunatic with dremel trying to remove wrist pin.
It makes sense now, its all good.
LOL, I thought the same thing at first!
Posted: May 26th, 2009, 8:08 am
by AlisoBob
100hp honda wrote:maybe bob wont be so happy. i just read the ktm manual and apparently the ktm piston is forged. who would of thought
. sorry bob
Yea.. .well.... the pistons in my DuraMax survive under 100% throttle all the time under my size 13 @33psi boost.. and their cast.
Its all good.....
Posted: May 26th, 2009, 8:23 am
by JBaze
AlisoBob wrote:100hp honda wrote:maybe bob wont be so happy. i just read the ktm manual and apparently the ktm piston is forged. who would of thought
. sorry bob
Yea.. .well.... the pistons in my DuraMax survive under 100% throttle all the time under my size 13 @33psi boost.. and their cast.
Its all good.....
Size 13! Pussy! My Cummins holds up to hammering under my size 16! Yeah and I'm not affraid to measure either
Posted: May 26th, 2009, 8:30 am
by Roostius_Maximus
Dude i've got a hard time finding size 13 boots/shoes here, how the heck do you find 16's?
Posted: May 26th, 2009, 8:53 am
by JBaze
When I was a kid it was hard to find any but now with computers, I can find em all day long. The hard ones to find are riding boots. Right now I use a set of old Hi-Points black and chrome.
Posted: May 26th, 2009, 9:21 am
by 100hp honda
AlisoBob wrote:
Yea.. .well.... the pistons in my DuraMax survive under 100% throttle all the time under my size 13 @33psi boost.. and their cast.
Its all good.....
book calls for .0021" - .0025" piston clearance. firing it up and hammer down probly aint going to work for the break-in procedure on this one
Posted: May 26th, 2009, 9:44 am
by AlisoBob
JBaze wrote:
Size 13!.... Pussy!
I aint talkin' boot size.....
Posted: May 26th, 2009, 11:33 am
by JBaze
AlisoBob wrote:JBaze wrote:
Size 13!.... Pussy!
I aint talkin' boot size.....
Keep dreamin, you know what women say about the size of a guys foot right? It be fact!
Posted: May 28th, 2009, 2:22 am
by CR500R7
Size does MATTER , to who I don't know.
Posted: May 28th, 2009, 7:12 am
by JBaze
CR500R7 wrote:Size does MATTER , to who I don't know.
Seems like mostly to guys!
Posted: May 28th, 2009, 8:16 am
by dannygraves
Posted: June 4th, 2009, 5:19 pm
by 100hp honda
got my magnetabzieher today
. now i can continue the tear down
Posted: June 5th, 2009, 7:56 am
by CR500R7
Posted: June 5th, 2009, 6:29 pm
by 100hp honda
i think it was some german word on the box. i assume it means flywheel puller
