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Everything you ever wanted to know about the 1200 8V engine tappet failure but were afraid to ask.

I also wrote about that! Even posted pictures of other components.

DLC coating is a high-end process. It wasn’t required. It was specified by Moto Guzzi as a high-end component. The 8V engine is a very high output motor (105hp from 1151cc {93 RWHP})

When done correctly, DLC is extremely durable and provides exceptional wear characteristics.

The vendor, took shortcuts.

Plain and simple.
 
Well bit the bullet and patiently waiting for my roller kit “C”, no delivery date yet. Suppose winter’s around the corner and plenty of rainy days, so not all that bad. Now thinking of getting the wheels re spoked, as they’re the only thing left that spoil the look. Going for stainless replacement.


201B6BA8 ED5B 4516 B528 CA283672D51E
 
Could I just confirm something for my 08 Stelvio.

It had a 'dealer conversion' at 9k miles, for which I have the receipt ,and now has 19k miles on the clock.

If I remove a rocker cover and look at the holes where the tappets actuate the rockers it will look like one of the two pictures in the first post: in other words it will be really clear if I do have rollers?

I hope it's that simple to check 🙂

Cheers,

Simon
 
Open it up. Take photo of the head and the valve cover insides, and post here. Let me see what you have.

Also, it helps if you actually READ the entire thread. What you are looking for is right there at post # 90.

 
I wrote specifically about what the problem was. It was right there. Did you read?
Will do. I have actually read all the posts from number 1 onwards in lots of detail, and more than once! They are exactly what I wanted to know but No 90 I really couldn't figure out. Not to worry - I'll pop off a cover, photograph the insides, post the pics on here and hope it's all good!
 
The dealer conversion may have been another set of flat lifters made to spin better than originals. Shop I worked at swapped out all new & bikes sold at the very beginning in 09. Look for the fork & wheel otherwise it'll be a rod. Good Luck.
 
So I am in the process of buying a Griso, but confused about the engine numbers, mine is, A8 014364. It has an extra digit. Anyone able to help, I would be very grateful. If it helps it’s on a 2014 bike.
 
So I am in the process of buying a Griso, but confused about the engine numbers, mine is, A8 014364. It has an extra digit. Anyone able to help, I would be very grateful. If it helps it’s on a 2014 bike.
You should have nothing to worry about, ALL 14 models are rollered, the issue is they did not switch over on the serial # they say they did in 12-13 models. I have changed motors after their # change over. So has other techs doing roller conversions, a grey area.
All you have to do is look, you can see the fork & roller at TDC.
 
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