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Post by danm54 on Aug 29, 2013 11:30:28 GMT
Turns out the wrong firmware can really screw things up!
Loaded the ms2 extra firmware on last night (it's supposed to have that anyway) and it all works a treat. Think my ecu was sent with the wrong firmware on so any updates/reloads I've done haven't helped at all.
The VE analyse works too so should save me going to a dyno as it'll set itself up close enough for now.
Should get a few hours on it tonight and get it ready for an mot.
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Post by danm54 on Aug 31, 2013 14:53:52 GMT
Well it was all going good with the new firmware, running nice and the VE table was tuning itself nicely when it all went a little rattly!
Think I've got a rattly big end so this motor is coming out and I need to source another one.
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Post by danm54 on Sept 4, 2013 22:48:58 GMT
Well that's fucked it! Think I've found the cause of my rattle!
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Post by Kristjan on Sept 5, 2013 6:03:35 GMT
These engines like to do that, I assume. Mine went wrong, a friend of mine had a dropped valve... they're really like time bombs?!?
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Post by danm54 on Sept 5, 2013 8:51:04 GMT
That engine had dropped a valve on the cylinder before, seen it when I fitted the spacer gasket but it all looked to have been sorted. The clutch fibres have came loose though and there was gritty sludge in the sump. The oil in some of the galleries was a bit sludgy too.
The engine only went in to make sure my set up worked but I did want it to last a bit longer.
The turbo seems ok thankfully but time will tell.
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Post by pasis on Sept 6, 2013 15:22:39 GMT
standard valve shit on this engine ... this happens quite often. Standard pistons for the turbo, are not suitable.
Valve is better to change to:KPMI, APE, Ferrera
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Post by danm54 on Sept 6, 2013 15:52:17 GMT
It was never a permanent engine, just one to fit the hole, get the tuning somewhere near, and more importantly make sure it all worked.
Interesting point on the valves, I've heard of a few go so I'll look at those others for the new build.
Cheers
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Post by RICHS202 on Sept 6, 2013 20:05:00 GMT
Love your dedication to your research. I always feel guilty after I blow things up......well for a minute........then I look for other things to blow up lol. Keep up the good work
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Post by danm54 on Oct 9, 2013 20:28:56 GMT
Cheers Rich! Last month has flown by but things are moving on. Finally got the pistons today though! Valves are on the way from Pasis so I better get a set of cases and crank sorted out soon and start measuring up for bearings etc.
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Post by danm54 on Oct 29, 2013 23:37:25 GMT
Mmmmm, new wheels!! Been having a mock up tonight and thankfully, my spindles are smaller than the Buells! The front will go in with some different bearings, a few spacers and some clever cnc bracket for the caliper I'd imagine. The rear needs a little more, can't get bearings to suit the wheel and spindle so some top hat spacers to centre the wheel up and fit the bearings, not sure on brake caliper mounting yet and I need to come up with a way to cush, and inset the rear sprocket. Think I've got it but we'll see how it pans out.
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Post by Kristjan on Oct 30, 2013 9:06:35 GMT
I think that these motors often suffer from piston to valve clearance or valve float, which leads to the problem pictured above. That means, the valves will break soon after they are slightly bent. Lightly touching the piston once is enough. I recently inspected one of these blown 1100 waterboilers with broken exhaust valve and I reached a conclusion that there was another valve in anther cylinder that was about to go, as it's valve pocket had a clear sign. That motor had about 80000 km mileage and barrels and cylinder head had never dismantled before. The guy who owned that bike had suddenly become a rev limiter man and together wit a friend they were stronger than the bike's valvetrain. As danm54 said before, his engine probably has had a dropped valve before another breakdown. Last person who put that engine together probably didn't inspect the valves too closely and used a bent valve OR the motor ran in red zone too much and too often. Another reason may be over revving after a downshift. As I read that cylinder spacer was used it probably was not danm54's fault, as this should virtualy eliminate piston to valve contact. Unfortunately, I have a friend who rides a 3 gen Yamaha R1 and he's a rev limiter man, too. Guess what - his bike blew up the same way. It only had 17k km on the clock. When re-assembling this engine with new parts, keep your eye on clearances and make sure you have good valve springs to avoid problems. Probably not a problem with cylinder spacer or low comp pistons, but better to be aware of than blow it 2 times in a row,eh. I'm about to build a 1146 N/A street motor with 1127 pistons, when I've got all the parts together there will be a build thread with info, I'm still thinking whether to go with stock springs, buy aftermarket or lower rpm limit...
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gsxrdude
Velociraptor
Posts: 23
Reg: Oct 11, 2013 13:14:54 GMT
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Post by gsxrdude on Nov 3, 2013 17:38:06 GMT
Nice project, will be watching this space
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Post by danm54 on Mar 14, 2014 20:31:36 GMT
Got a nice delivery form Roger Upperton today, head work done and the plenum matched to the intakes, barrels re-bored and rings gapped. Quick blurry pic as its Friday night!
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Post by danm54 on Mar 19, 2014 16:34:04 GMT
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Post by busaash on Mar 20, 2014 10:16:56 GMT
some nice work done there mate
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