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 Houston, we have a problem.

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Pete Roper
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PostSubject: Houston, we have a problem.   Mon Dec 15, 2014 2:12 am

Ralf's bike has shat itself.

Dunno the cause yet but my guess is that although I was told it didn't need the shims under the inlet valve springs it may of done. It's spat out a tappet pad. I reckon it's bent a valve.

It'll be here tomorrow and we'll tear into it.

Pete
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pauldaytona
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PostSubject: Re: Houston, we have a problem.   Mon Dec 15, 2014 2:34 am

A5 has no shims and needs them, the a8 has shims on in and outlet. What version does he have then?
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Steak
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PostSubject: Re: Houston, we have a problem.   Mon Dec 15, 2014 10:31 am

Das ist bummer...

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2012 MOTO GUZZI GRiSO 1200SE

2013 MOTO GUZZI STELVIO 1200NTX - Orange Blossom Special
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Pete Roper
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PostSubject: Re: Houston, we have a problem.   Mon Dec 15, 2014 11:56 am

It's an A8 but the whole thing is fraught. If you look at the parts lists there don't appear to be any supercessions or notes on when changes appeared. Some models have shims, some don't. The mistake I made is believing that the factory knew. In future I'll be taking the heads off ANY bike I do and checking.

Of course it may be some other cause, I won't know until later today.

Pete
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Pete Roper
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PostSubject: Re: Houston, we have a problem.   Mon Dec 15, 2014 6:05 pm

Turns out it was nothing so serious. Problem solved. I'll explain later.

Pete
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Steak
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PostSubject: Re: Houston, we have a problem.   Tue Dec 16, 2014 12:33 am

That puts a smile on my face! Nobody wants to see a dead GRiSO...

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2012 MOTO GUZZI GRiSO 1200SE

2013 MOTO GUZZI STELVIO 1200NTX - Orange Blossom Special
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Ralf z
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PostSubject: Re: Houston, we have a problem.   Tue Dec 16, 2014 2:10 am

Steak wrote:
That puts a smile on my face!  Nobody wants to see a dead GRiSO...
I'm smiling too cheers
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Pete Roper
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PostSubject: Re: Houston, we have a problem.   Tue Dec 16, 2014 3:39 am

OK, I'll try and keep it short. This was a comedy of errors that shouldn't of occured.

Bottom line is that Ralf's bike did its tappets a couple of months ago. A bit of argy-bargy and warranty was approved but there was going to be a delay getting the kit.

Good news was that I had bought a kit for my bike, a 'C' Kit which contains *Everything*. Since my bike runs like a champ I couldn't see any reason to swap it out immediately and Ralf's bike only needed the 'B' Kit which doesn't require the heads tàking off to shim the valve springs.

So I stick the relevant parts of *My* kit in Ralf's bike and all is good. UNTIL he goes away for a trip down to Victoria. Here's where it gets interesting.

Long ago, in a galaxy far far away I sent off an ECU to be remapped by a Guru. Now the Guru did have a severe car accident but it took much longer for the ECU to come back with a 'Reflash' that was supposed to be quid-pro-quo for a host of shit than it took him to recover. No worries, but the ECU had a broken port. I was given some cock and bull story about it falling off a bench but I could see it wasn't actually the unit I'd sent over. If I had just been asked if I would accept a damaged but working unit I would of said 'Sure', in fact I did, before it came back and realised I'd been duped into accepting an unsaleable unit. But it worked.

Anyway, fast forward and when I had to remap Ralf's bike my other two 'Spare' ECU's were overseas. I knew the damaged one worked so I mapped it up and it went in Ralf's bike. I can't remember the exact reason ne needed another ECU? Perhaps it just seemed like a good idea at the time!

Anyway it got water in it and shat itself on the Victorian ride. Ralf's had to get an $800 tow home. This made neither of us happy.

No issue on my part. By now one of my *Spare* ECU's was back so I flashed it up and sent it to Ralf. He installed it and after warm-up it suddenly ran like crap. While immediate thought were electronic he lifted a rocker cover and found one of the 'Pads' that goin the rockers on roller bikes sitting in the top end.

My heart sank. The only way that they can fall out is if there is a huge increase in valve clearance. What could cause that? A collapsed roller tappet OR a bent valve. Fuck, fuckity, fuck-fuck!

So he drags it up here and I tear the camboxes out again and Lo and behold, all the 'Pads' are in the rockers, nothing is amiss, the stack height of the valve springs is perfect! WTF is going on? It was a flat Tappet bike. When it was built the 'Pads' didn't exist??? How the fuck was there an extra one???

Then it slowly dawned on me.

When I'd been installing the kit I'd been a 'Pad' short. *My* kit was one of the early ones assembled by the importer and the shaved ape masquerading as a picker had opened the sealed boxes that contained the replacement camboxes, (why???) and not re-sealed them but while some of the other parts were bagged a fair few of them appeared to have been tossed in to the box like some sort of mechanical, Italian, 'Shake A Cake'.

My guess is that somehow one of the 'Pads' hid somewhere in the cambox and I just didn't see it. When the engine was running it eventually jumped out of wherever it was an lay in the head waiting to perplex Ralf when he pulled the rocker cover.

Anyway we reassembled the bike, sans *Extra Bit* and fired it up. It ran like a dog.

Connected Guzzidiag, TPS was way off, presumably because the new ECU hadn't had the TPS reading re-calibrated. Did that, re-set the self learners and balanced the TB's. Idle all over the place! Why? Because Ralf is a Noisy Moron and refuses to fit his dB killer. Eventually loaded the Mistral no dBk map and played with the CO trim and it now runs very well.

IT WOULD RUN BETTER WITH A FUCKING dB KILLER IN BUT HE WON'T LISTEN!

At the end of the day though it was a tuning problem, the extra Pad was just there to fuck with my head Very Happy. All good. No major damage.

Pete
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Steak
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PostSubject: Re: Houston, we have a problem.   Tue Dec 16, 2014 7:08 am

Huzzah! Now bin that wonky, re-flashed ECU... It'll get the bitter taste out of your mouth.

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Oz1200Guzzi
Don Abbondio
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PostSubject: Re: Houston, we have a problem.   Tue Dec 16, 2014 12:54 pm

Well, Pete and Ralf both older and wiser, I reckon... Good news though, in the end.
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beetle
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PostSubject: Re: Houston, we have a problem.   Tue Dec 16, 2014 1:20 pm

Riddle me this: It was running perfectly fine (well, as fine as it can without the dBk), and then the ECU went tits-up, and the pad scared the bejesus out of you, then it went like crap and you had to change the map? Something don't add up. scratch
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Pete Roper
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PostSubject: Re: Houston, we have a problem.   Tue Dec 16, 2014 2:14 pm

Nah, it wasnt that. I'd flashed it with the 'Universal' map which is supposed to use a dbK yes? I can't remember what was in the ECU that died, maybe I could read it but I binned it yesterday as one of the pins had rotted away. Anyway it really didn't like the 'Universal' map so I stuck the Mistral hi-pipe NodBk map in and messed with the CO trim to get it sweet. No, it's not perfect but it's safe and it no longer idles at 2,000+ rpm.

Pete
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beetle
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PostSubject: Re: Houston, we have a problem.   Tue Dec 16, 2014 2:21 pm

Thumbs Up
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Ralf z
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PostSubject: Re: Houston, we have a problem.   Tue Dec 16, 2014 2:29 pm

Yes Pete and I had worried looks on our faces at first.
But fast forward two hours later and we were sitting in the pub ( Petes office)
Enjoying a beer and a laugh and Pete having to talk to me louder than most people as I'm the no dbk kinda guy.
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ghezzi
Fra Cristoforo
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PostSubject: Re: Houston, we have a problem.   Tue Dec 16, 2014 11:26 pm

What's that Ralph, you'll have to type a little louder, I can't make out what your saying.
What's a dbk?

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Grisodude
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PostSubject: Re: Houston, we have a problem.   Sun Dec 28, 2014 2:28 am

Ralf
Great to here all is well.
My heart sank when I started reading this.
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PostSubject: Re: Houston, we have a problem.   Today at 4:47 am

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Houston, we have a problem.
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