r6rider04 Posted December 28, 2004 Report Posted December 28, 2004 went down to the pond today to do some ice racing with my buddy... when i came out of the corner engine started rapping still idling but something is deffinately boken or loose any idea, it will still start and everything (no i'm not still running it) any ideas???? thanks, Brian Quote
locogato11283 Posted December 28, 2004 Report Posted December 28, 2004 rapping? like eminem? you are gonna have to explain a little better. then possibly we can help you. have a nice day Quote
bansheefreak Posted December 29, 2004 Report Posted December 29, 2004 does it still drive????? does it get worse if you rev it???? is exhaust still coming out both pipes???need more details and anyone here will be glad to help ya out Quote
Banchetta Posted December 29, 2004 Report Posted December 29, 2004 Rapping like a loud tapping noise. You blew the lower bearings apart either in the connecting rod or crank.....If so then you'll have to bore the cylinders and new pistons....I'd pull the head , that'll tell all.... Quote
r6rider04 Posted December 29, 2004 Author Report Posted December 29, 2004 well i just got in from the shop after 3 hours and yes it was one of the connecting rod bearings.. one piston is toast with rings siezed and that side that the bearing went, the head is all scarred up , the other piston,head ,cylinder etc. looks all set, evan the side that went the cylinder looks good, what do you guys think??? Quote
r6rider04 Posted December 29, 2004 Author Report Posted December 29, 2004 i know you guys don't really know with out seeing first hand but based on what i've described what do you think i will need for parts and a ROUGH estimate on cost, i'm not expecting exact parts list or exact dollar amount just looking for a ball park figure, thanks again guys..... Brian Quote
zilladude Posted December 29, 2004 Report Posted December 29, 2004 If you don't mind E-pay , I think it would cost around 600 in parts + boring the cylinders. If your not in a hurry you could probably get the pats cheaper. Quote
Banchetta Posted December 29, 2004 Report Posted December 29, 2004 Upper bearing or lower bearing? Upper bearing, then around 250-300. Lower bearing then add another 500 to that.... Quote
r6rider04 Posted December 29, 2004 Author Report Posted December 29, 2004 it's the lower bearing.. is there anything too difficult about spliting the cases? i need to get in there to clean out all the metal fragments and look at the crank... do you think i can salvage anything, or do i need to bore both cylinders, new top end, new head, crank and rods? Quote
BenBB Posted December 29, 2004 Report Posted December 29, 2004 That sucks man. Just guessing but you're prolly looking at: Crank $350 from TDR Pistons $120 Topend gasket set $25 Threebond/Yamabond $10 for the cases Bore cylinders $80 Case oil/antifreeze etc. $20 Used stock head $50 on fleabay So roughly $650-ish a bit more for freight. Yes bore both cylinders to the next oversize (hopefully that will be enough to eliminate the damage to the one side). Take this opportunity to have the crank welded, and mill the head for a little more compression. If ya got deep pockets you can go hog wild with a stroker crank, porting, mod the shift star, advance the timing, aftermarket head, etc. etc. etc. It's not a tough job, just make sure everything is clean and take your time, good luck. Quote
Banchetta Posted December 30, 2004 Report Posted December 30, 2004 Like Benbb said, but he's is being the least cost. I'd add a couple of bills to be safe. YOu have to bore both sides the same, it'll probably take .020 to clean it up. I know, I did one.. I'd get a new crank, piston kit, gaskets, NOss head, +4 timing key, and shift star. Cost around $800-950 depending on head choice..thats w/ shipping and everything. I'd also go w/ Pro-x pistons. My .02, there is a lot of personal oppinions on this.. Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.