Tore the engine down today. Looking for a Florida shop to check the head to see if it is still in spec to be honed. Have some wall etching if I can go with stock piston swap I will, if not guess I will have to bore it over 1mm,2mm we will see. Will update with new info etc. Have not seen a thread like this or much info on the engine ect. Had white smoke on decel, compression test showed rings were bad on 1 and 3 further tear down to show the walls. T
I've been considering going to 2mm oversize on mine over winter but waiting for my brother to make some more enquiries as to if it's worth it etc.
Obviously it's a different situation with yours as those bores have definitely seen better days - the bores can show scuffing marks almost from new but it's the first time I've seen on here that it's got that bad the engine starts smoking etc
No idea where they're based but even though I'm in the UK my brother sends busa blocks etc to the states to get them bored/replated - Millenium Coating or somewhere like that I think.
__________________
2005 RR - Maxton Forks, HRC Race Bodywork, Sato (copy) Rearsets, Goodridge Brake Lines, Maxton Shock, HRC ECU & Loom, Akrapovic Race System, K&N Filter, PC3 mapped by Motrac, FW Racing V-stacks, Sprint Damper on HRC mounting, TL Quickshifter, Sigma slipper clutch, full Fast By Wayne race motor, Pace double-core race rad, 04 R1 radial master-cylinder, ZX7R reservoir, R&G Crash Bungs, Paintwork by Rage Designs ala Airwaves Ducati etc, NRC Stator Cover, DHC Kevlar clutch cover
From reading on other forums looks like this is normal with honda engines. All walls look like the picture. Wear is only on the front and back of the piston. 1 and 3 are a slight bit worse then 2 and 4. Dad is a master mechanic and has never seen wear like this. Almost like the walls are not straight and the head can pivot a little. Also have heard that just rebuild it again and they will be fine. Would love to bore out but $600 for pistons plus the bore and plating will not be cheap. Not sure I want to spend that kind of money.
There is a shop here (gainesville) that does boring and engine building. Really nice guy and he knows his stuff. Its bit of a drive for you, but its on your way to Jennings.
hey tripage im just finishing up my build and was wondering if you could do me a favor, could you mic the oil strainer hole in the block and let me know what it is, mine is a 03 and i had to re-case it but the strainer hole on the block is bigger on my new case and im just trying to figure out what year strainer i need to order, anyway thanks if you can and if not no biggie
just as you said, its normal for their to be wear on the front and the back of the cylinder walls. Every motor we have had apart have shown scuffs like in your pictures. However, its now a prime reason to do a 2mm overbore and have the entire motor race prepped and balanced even better.
hey tripage im just finishing up my build and was wondering if you could do me a favor, could you mic the oil strainer hole in the block and let me know what it is, mine is a 03 and i had to re-case it but the strainer hole on the block is bigger on my new case and im just trying to figure out what year strainer i need to order, anyway thanks if you can and if not no biggie
I would guess 03-04 is the same 05-06 is the same. If your 03 isn't fitting then 05-06 should fit.
I work as a go-kart mechanic and that look very similar to the single cylinder honda engines i work on
What are you doing to them to fix this? Honing it re ring it and your good? Boring it over, Sleeve or plating, does this fix the problem for longer than 10,000 miles? Guess what I am wanting to do is see if boring will fix the problem or is it going to do the same thing, in that case I will hone it and rebuild. T
hey tripage im just finishing up my build and was wondering if you could do me a favor, could you mic the oil strainer hole in the block and let me know what it is, mine is a 03 and i had to re-case it but the strainer hole on the block is bigger on my new case and im just trying to figure out what year strainer i need to order, anyway thanks if you can and if not no biggie
Just checked ronayers and they are the same 03-06... Should fit fine.
I think you're a bit beyond new rings and a hone job. Those scuffs are from the skirt on the piston. ( which is bigger at the bottom and smaller at the top) If you honed that bore to only clean up... it would still be oval shaped and the rings would still get blow-by. Stock pistons are like $500 for a set. JE pistons are like $700. Bore and hone are ???
My .02 I would just buy a motor to replace that one.
__________________
Ride hard today, Ride harder tomorrow,!
Walk close to Christ today, Walk closer tomorrow
Sending the case off to see if it can be salvaged. If not, maybe bore it out and sell it, not sure anyone wants a bored out 600. Will update with any new info. T
^^^Yeah I'm sure you can overbore that, I had similar problems with my Civic long time ago. Piston 3 took a sh*t and I had to do a 30mm overbore, but this is a car I don't know what to think with a bike engine.
__________________ 2009 murdered out 1000RR
-Shogun sliders -Spoon reservoir covers -Honda Racing CF tank cover -Honda Racing CF knee pads -Leo Vince GP Pro EvoII SS -PCV/IRC w/ Custom Map -R&G Fender Eliminator -Pazzo black shorty levers -Vortex black rear sets -Sportech black windscreen -Xenon Vision 6K HID's -BMC Race Air Filter
I'd budgeted £1000 if I went 2mm over with mine, £600 min for pistons and boring/plating then the rest to cover getting the job done and gaskets etc. My motor would need lots of measuring and stuff cos it's already higher compression and the new pistons could raise it furter as well as the effect of increasing swept volume. And cam timing would need checking too.
Did someone really say they went 30mm oversize??? lol
__________________
2005 RR - Maxton Forks, HRC Race Bodywork, Sato (copy) Rearsets, Goodridge Brake Lines, Maxton Shock, HRC ECU & Loom, Akrapovic Race System, K&N Filter, PC3 mapped by Motrac, FW Racing V-stacks, Sprint Damper on HRC mounting, TL Quickshifter, Sigma slipper clutch, full Fast By Wayne race motor, Pace double-core race rad, 04 R1 radial master-cylinder, ZX7R reservoir, R&G Crash Bungs, Paintwork by Rage Designs ala Airwaves Ducati etc, NRC Stator Cover, DHC Kevlar clutch cover
hmmm thats weird, it dosent fit, it might be an overseas bike, anyways i just had the local machine shop make me a press fit spacer to make up the diff, thanks for the info
hmmm thats weird, it dosent fit, it might be an overseas bike, anyways i just had the local machine shop make me a press fit spacer to make up the diff, thanks for the info
Saw a video on youtube where they swapped 04 engine to 06 and they had to order one as well. Not sure what they ordered because the part numbers are the same.. T
^^^Yeah I'm sure you can overbore that, I had similar problems with my Civic long time ago. Piston 3 took a sh*t and I had to do a 30mm overbore, but this is a car I don't know what to think with a bike engine.
Dropped the cylinder head off. 1mm bore to be done, Wiseco Pistons ordered with rings and head gasket. Will take some pics when it gets done and we are putting everything back together.. T
$550 for the set.
Decided to get slotted cam sprockets as well to adjust the timing better to get some more out of the engine. Will update with numbers when it's done and I get it dynoed.. T
