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12425 - Established June, 2013 - all GRiSO, all the time...
 
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 Behold! The light of blazing underpants!

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wardentm
Guzzi Cat
Steak
Phang
GUZ21
waterbottle
Oz1200Guzzi
hemelguzzi
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Pete Roper
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89millegt
Carlotto
Carlotto
89millegt


Posts : 32
Join date : 2013-06-22

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PostSubject: Re: Behold! The light of blazing underpants!   Behold! The light of blazing underpants! - Page 2 Icon_minitime1Sun Aug 02, 2015 8:24 pm

The oil pressure switch on my 2011 failed and blew oil all over the left side of the bike. My GRiSO has 10,700 miles on the clock. I guess the to plastic part must have cracked.

Are the replacement parts hard to come by? It seems like they are our if stock at some of the usual places in the US. There are 2 versions too. Stupid part has my only motorbike out of service. :-(
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Pete Roper
GRiSO Capo
GRiSO Capo
Pete Roper


Posts : 9467
Join date : 2013-05-29
Age : 65

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PostSubject: Re: Behold! The light of blazing underpants!   Behold! The light of blazing underpants! - Page 2 Icon_minitime1Sun Aug 02, 2015 8:32 pm

The early type has been discontinued, the BMW part will almost certainly work or you can purchase the later the and the adaptor to fit it. They're all pretty cheesy.

Pete
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wardentm
GRiSO Capo
GRiSO Capo
wardentm


Posts : 895
Join date : 2015-05-16
Age : 70

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PostSubject: Re: Behold! The light of blazing underpants!   Behold! The light of blazing underpants! - Page 2 Icon_minitime1Sun Aug 02, 2015 8:34 pm

Boy, this thread has taken some twists and turns, and I am guilty, sorry.
Will try to mend my ways.
Cheers
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Oz1200Guzzi
Don Abbondio
Don Abbondio
Oz1200Guzzi


Posts : 6019
Join date : 2014-03-13
Age : 68

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PostSubject: Re: Behold! The light of blazing underpants!   Behold! The light of blazing underpants! - Page 2 Icon_minitime1Sun Aug 02, 2015 8:51 pm

Trevor, we are all bent to some degree, so a straight conversation like this is normal...
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Oz1200Guzzi
Don Abbondio
Don Abbondio
Oz1200Guzzi


Posts : 6019
Join date : 2014-03-13
Age : 68

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PostSubject: Re: Behold! The light of blazing underpants!   Behold! The light of blazing underpants! - Page 2 Icon_minitime1Sun Aug 02, 2015 9:06 pm

Yup, it works
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Guzzi Cat
GRiSO Capo
GRiSO Capo
Guzzi Cat


Posts : 356
Join date : 2014-09-02

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PostSubject: Re: Behold! The light of blazing underpants!   Behold! The light of blazing underpants! - Page 2 Icon_minitime1Mon Aug 03, 2015 2:28 am

Thanks for all the good feedback lads, I don't mind twists and turns in the thread as I just put all the information in to that old saucepan of mine and give it a good stir and you generally get the right soup. Exclamation

As it happened I went out and started the bike this morning and the faults had cleared Very Happy

The new switch should arrive in the next few days but we have a trip to the Ulster GP road race planned for Friday so I will leave it until I get a chance in the next couple of weeks.
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little750
GRiSO Capo
GRiSO Capo
little750


Posts : 218
Join date : 2014-05-07
Age : 67

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PostSubject: Re: Behold! The light of blazing underpants!   Behold! The light of blazing underpants! - Page 2 Icon_minitime1Mon Aug 03, 2015 3:52 am

Pete just thinking is this something to do with your big end going?
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Pete Roper
GRiSO Capo
GRiSO Capo
Pete Roper


Posts : 9467
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Age : 65

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PostSubject: Re: Behold! The light of blazing underpants!   Behold! The light of blazing underpants! - Page 2 Icon_minitime1Mon Aug 03, 2015 4:08 am

I've been pondering that. I hope not because if it is then I'll probably do another set of big ends. Only way to know though is to try it! I don't have X-Ray eyes or a magic wand so in situations like this I have to rely on experience and intuition. If I have got it wrong though others will learn from my mistakes and that is a good thing.

Pete
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mike 850T
GRiSO Capo
GRiSO Capo
mike 850T


Posts : 12
Join date : 2015-08-10

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PostSubject: Re: Behold! The light of blazing underpants!   Behold! The light of blazing underpants! - Page 2 Icon_minitime1Wed Aug 12, 2015 11:06 am

I had the same fault on the way home when i bought my bike,took off the rocker covers to have a look oil was good Surprised  made a mess ,it turned out to be the oil pressure switch cable shorting out on the  cylinder cooling fins only when hot,took a while to find the fault and I sorted it out with some shrink tubing.
         mike
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Lenz9753
Tanabuso
Tanabuso
Lenz9753


Posts : 87
Join date : 2015-06-16

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PostSubject: Re: Behold! The light of blazing underpants!   Behold! The light of blazing underpants! - Page 2 Icon_minitime1Thu Aug 13, 2015 3:17 am

Pete Roper wrote:
I've been pondering that. I hope not because if it is then I'll probably do another set of big ends. Only way to know though is to try it! I don't have X-Ray eyes or a magic wand so in situations like this I have to rely on experience and intuition. If I have got it wrong though others will learn from my mistakes and that is a good thing.

Pete

Hey Pete - I'm not sure if this will be any assistance but we'll see -

My understanding is you suspect your flat tappets have failed and steel debris may have caused secondary damage to the bottom end.

I have heard of rare earth, extreme strength magnets being positioned on the steel wall of the oil filter cartridge. The effect is to over time, extract all the steel particles that would otherwise continue to circulate through the filter and oil volume. I haven't done any research or trials / dissections of oil filter cartridges with these magnets in place.

Do you have any before and after data on your oil pressure to confirm the big end is done ?
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Pete Roper
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Pete Roper


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PostSubject: Re: Behold! The light of blazing underpants!   Behold! The light of blazing underpants! - Page 2 Icon_minitime1Thu Aug 13, 2015 5:03 am

No need, I recognised the noise and went in. Yes, they be fucked. I don't actually think it was particulate, I think it was oil starvation. Why? No idea. I suspect the fact I was doing all together too many wheelies just before I did the big ends. And now I've blown some fork seals. See a pattern? Very Happy

Stupid reaps its own reward.....
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Lenz9753
Tanabuso
Tanabuso
Lenz9753


Posts : 87
Join date : 2015-06-16

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PostSubject: Re: Behold! The light of blazing underpants!   Behold! The light of blazing underpants! - Page 2 Icon_minitime1Thu Aug 13, 2015 1:18 pm

Pete Roper wrote:
No need, I recognised the noise and went in. Yes, they be fucked. I don't actually think it was particulate, I think it was oil starvation. Why? No idea. I suspect the fact I was doing all together too many wheelies just before I did the big ends. And now I've blown some fork seals. See a pattern? Very Happy

Stupid reaps its own reward.....

Pattern - what pattern - definitely seeing a little healthy exuberance and maybe some FTLOY-IDC (Fuck The Lot Of Yers - I Don't Care) Laughing  

Hell of a way to save wear on front tyres though  Laughing

For the non-wheelie folk though who may be at risk due to progressive tappet failure, do you think it could be useful to provide a high strength magnet, or a series of them, to also pull larger steel fragments out of the oil BEFORE they go through the pump
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