Crack in Block!!!

[masterbomb5000]

Hey guys just bought myself a 03 cbr 600rr that needs some work for it to get back up to par. was planning to make it a track bike so i had the guy drop it off my house. wasnt surprised but there is a small crack from bottom of block by cover , was wondering if anyone on here knows anyone that is a good welder that can also travel to me. im located in newton MA. worst part about it is this idiot tried to jbweld it and then put this silicone gunk all over it. such a bitch to remove. hoping for good news thanks guys!

[schleppy]

I don't know about that man. I think it may be time to start scouring EBay for a new motor. I wouldn't trust a welded block...

[Paul_E_D]

Where's the crack?

[Pigman]

Post pics of said Crack...or im on sum

[Sheppo]

It is cracked because??? If he left water in it and it froze and cracked get a new motor. I'll bet dollars to donuts it's cracked internally too.

[Awesome]

JB weld it some more.

[Mustang]

duct tape

[Pigman]

Lawn Ornament.....

[masterbomb5000]

Where's the crack?

the crack is right by the cover about 2 inches deep im guessing. will post some pics to get some more feedback. a new motor would cost 500~ so even if thats what it comes down to the bike will be 1600+500=2100 spent, which to me is still quite the a deal.

[Awesome]

So it has no title huh?

[DucDave]

...i think there are folks here who would volunteer to snort it out with a straw...or rolled up 20...

[masterbomb5000]

So it has no title huh?

no this thing has a clean title

pics of it can be found

http://s111.photobucket.com/albums/n143/masterchen5000/

[Kitt]

...i think there are folks here who would volunteer to snort it out with a straw...or rolled up 20...

you don't "snort" crack-cocaine




edit: and oh - if you're willing too buy a new motor, I'd JB weld that one til it dies (not sure fi jay was kidding or not) but JB weld works well on cracked blocks - auto and bike. I'd pull it out and see where the crack goes to make sure the "repair" wasn't in vane.

[masterbomb5000]

yea i guess i will just try to ghetto rig it i mean the crack where the cover seats isnt even all the way through only half cracked as seen in pics. but what else there could be under all that gunk is unknown as of now. will update later with more info.

[richw]

Pictures suck

Chip some jb weld out of there

then brake clean spray

then jb weld

then discard that Raoul of San Juan rig

[SVRACER01]

dave..your valve picture confuses me.

[snowborder]

just a question.... even fixed... Will that ever pass tech inspection? looks like it has the potential to vomit out at any time.

[Tricky Mike]

dave..your valve picture confuses me.

no springs... the other cam lobe forces the valve closed.

[Cerberus]

dave..your valve picture confuses me.

i presumed you were joking, as per your norm..
but the desmo valve system uses one lobe to open the valve and another lobe to pull the valve closed and a very light spring usually to hold it to its seat

[masterbomb5000]

Update!:ok so got this bike running after stopping the leak. but it does still have a drop or 2 coming out of the cover which sucks....but im just gonna live with it for now till i get a new motor i guess. but the thing that im confused about is when i drained out all the coolant and put some new honda stuff in and started up the bike for the first time since i bought it last week. runs good. but as the coolant heated up and all the bubbles get pushed out through the cap alot of crap started coming up to the top. very dark mud like oil and i think i even saw some metal shavings for like a sec not 100% on that thou. im guessing there are many things wrong with the motor including a crack in the block. what would your plans be? pics can be found here.

http://s111.photobucket.com/albums/n143/masterchen5000/

[Kurlon]

Sounds like the crack is internal, allowing combustion pressure and oil to push into the cooling system.

[Degsy]

The block cracked because it overheated. That's why you also have a head gasket leak. My guess judging by the paintwork is that it happened during an extended burnout.

Time for a new motor.

[richw]

Pull the head and carefully examine the head gasket for a channel from combustion to oil/coolant


then discard

[Paul_E_D]

Plan would be the 500 dollar tune up... (good used motor) You're wasting your time.

[hawk]

Motor is junk.