[silentservice703]

I thought it was mostly the 675 engines and the 800s don't rev as high.... it does seem mostly just the F3 models. with the 800s
Again, we must remember...this is an internet forum where people discuss their troubles at length...but rarely do you hear from the many with no troubles.

What does an f3 800 rev out to then?
I thought the dragster, brutale and f3 all had same 13500 rev limit (800 RRs at least)?

From my latest edition manuals:

What I glean from this is that the F3 800 has the same hard limiter as the F3 675. This will stress everything more inside the 800 and I'd expect more F3 800 failures than either B3 or F3 675.

 

[silentservice703]

I know that there is a thread somewhere that had a poll for what type of engine and what mileage failure....

 

[EkiHoo]

With all respects on the failures seen and expense & troubles, these seems to happen mainly on those high-output version (~ 150 hp) which are high revving and most probably having the most aggressive cams on all 3 pot versions. Personally, I believe that this is related valve-lift, especially inlet-path. Over there high-lift is typically providing the nice gain which is then stressing the most the springs. Some time ago I was watching video from Youtube where "engineers of MV Agusta were looking the final gain on output.. in dyno-room". What came to my mind, might be worth to "dial one step backwards reliability in mind" for std bikes sold on the street.

It was -92 while Honda introduced their legendary NR750 (oval pistons / 8 valves per cylinder etc), output 125 hp as a std and with factory kit ~ 155 hp. Nowadays those are extreemely rare and expensive, especially std version.

Today, we have same "factory kit" as std for road bike. Physics are physics and naturally aspirated engine for such a power from 750/800 is revving. Would guess, 80% our us would be actually faster on the road with with 130-140 hp @ 800 cc than 150 hp@ 800 cc. More punch for mid-range. Higher reliability. Less emissions . Those who are driving on the track, they could buy "factory kit" and provding needed maintenan

 

[sibiv59]

What does an f3 800 rev out to then?
I thought the dragster, brutale and f3 all had same 13500 rev limit (800 RRs at least)?

Thats a Roger Rich8. All 800 engines produced by MV are same power and torque with rev limiter at 13500 rpm.

 

[sibiv59]

I thought it was mostly the 675 engines and the 800s don't rev as high.... it does seem mostly just the F3 models. with the 800s
Again, we must remember...this is an internet forum where people discuss their troubles at length...but rarely do you hear from the many with no troubles.

Esq'z me, I disagree with you. Yes good things are not discussed in the forum as well as parts replaced under warranty are also not discussed in the forum. By this no one can ever come to conclusion that the bike is technically sound especially when you are always under a threat of stopping in middle of highway and someone from behind running over you. These posts are not to just manipulate the customers of MV rather just bringing an awareness of such issue exists and these posts would give them an idea of how to go further about it.

 

[Magni Man]

Hi,

Does any one know how much does a brand new MV Agusta F3 800 cost? Has any replaced engine previously, kindly share your experience as i am planning to replace the complete engine for my F3 800 due to a valve issue.

Where are you located? Are you doing the swap yourself or is it being done at a shop?

 

[HTX_713]

I knew one guy but he got his engine replaced then sold his bike. He doesn't come on here anymore. I would think you could get a new engine for around $8k-10k and then $2k in labor and other misc parts. Used is an option I would go with personally. Then you can build your new head with upgraded parts. Bottom ends dont fail on these engines.

Sent from my SM-G930V using Tapatalk

Might be me. Lol I sold my bike and bought an investment home. My motor was covered by MV out of warranty and I paid for labor. No idea what a motor would cost as I could never find a used or new one. I found some used dragster motors but no F3. A couple guys offered to sell me their engine but nothing came of it. I’m surprised MV didn’t cover yours. Mine blew at around 8.5k miles I believe. First ride after my valve inspection. I took it to Monkey Moto and it was there for about 2 weeks and had a Motor in 2 days after MV approved it.

 

[FlashVinnig]

Might be me. Lol I sold my bike and bought an investment home. My motor was covered by MV out of warranty and I paid for labor. No idea what a motor would cost as I could never find a used or new one. I found some used dragster motors but no F3. A couple guys offered to sell me their engine but nothing came of it. I’m surprised MV didn’t cover yours. Mine blew at around 8.5k miles I believe. First ride after my valve inspection. I took it to Monkey Moto and it was there for about 2 weeks and had a Motor in 2 days after MV approved it.

Thats how you handle issues! Quickly!

 

[kingwilliams]

I have a 2014 F3 675, it had the clutch basket issue, which meant the basket threw a bunch of the “fingers” off and left shrapnel bouncing around in the engine. Since I bought it new in 2017, it was still under warranty in spring 2018, when the basket broke at about 3800 miles.

Took the bike to DucShop in GA; the replacement engine took almost 6 months to arrive, got the bike back in December 2018 with a new 2018/19 motor.

After 450 miles, dropped a valve in cylinder 1.

Back to DucShop, MV sent another engine, got the bike back in just a couple months-much faster.

That engine lasted about 100-150 miles, dropped another valve; this time, being familiar with the sound, I actually killed the engine in time to save it from being completely destroyed.

Back to DucShop; at first, MVA NA were trying to locate a head that was somewhere around here domestically, but after a couple days, didn’t like the prospect of putting a bandaid on it, so MVA sent another mill.

I’m pretty certain it got here from Italy in only a couple weeks-I think I had it back from DucShop in 3 weeks(!)

I believe that this is a 2019 motor.

It has been fine for a couple thousand miles, so I think I’m good to go.

I cannot fault MVA for the way they took care of me, they never really blinked when needing to do the expensive thing and shipping parts from Italy has really sped up.

Anyway, best of luck, I hope that you can get back on your F3 sooner than later!

King Williams

 

[FlashVinnig]

I have a 2014 F3 675, it had the clutch basket issue, which meant the basket threw a bunch of the “fingers” off and left shrapnel bouncing around in the engine. Since I bought it new in 2017, it was still under warranty in spring 2018, when the basket broke at about 3800 miles.

Took the bike to DucShop in GA; the replacement engine took almost 6 months to arrive, got the bike back in December 2018 with a new 2018/19 motor.

After 450 miles, dropped a valve in cylinder 1.

Back to DucShop, MV sent another engine, got the bike back in just a couple months-much faster.

That engine lasted about 100-150 miles, dropped another valve; this time, being familiar with the sound, I actually killed the engine in time to save it from being completely destroyed.

Back to DucShop; at first, MVA NA were trying to locate a head that was somewhere around here domestically, but after a couple days, didn’t like the prospect of putting a bandaid on it, so MVA sent another mill.

I’m pretty certain it got here from Italy in only a couple weeks-I think I had it back from DucShop in 3 weeks(!)

I believe that this is a 2019 motor.

It has been fine for a couple thousand miles, so I think I’m good to go.

I cannot fault MVA for the way they took care of me, they never really blinked when needing to do the expensive thing and shipping parts from Italy has really sped up.

Anyway, best of luck, I hope that you can get back on your F3 sooner than later!

King Williams

Thats they supposed to do! They handled you well!

 

[Figifister]

Might be me. Lol I sold my bike and bought an investment home. My motor was covered by MV out of warranty and I paid for labor. No idea what a motor would cost as I could never find a used or new one. I found some used dragster motors but no F3. A couple guys offered to sell me their engine but nothing came of it. I’m surprised MV didn’t cover yours. Mine blew at around 8.5k miles I believe. First ride after my valve inspection. I took it to Monkey Moto and it was there for about 2 weeks and had a Motor in 2 days after MV approved it.

Hey way to chime in buddy! I thought you were gone forever lol it's nice to know your still sticking around helping out. This is why we share our experiences so hopefully the next guy doesn't get screwed. Keep on lurking and good luck with the investment home! Housing prices are up so I'm sure your happy.

Sent from my SM-G930V using Tapatalk

 

[Figifister]

I have a 2014 F3 675, it had the clutch basket issue, which meant the basket threw a bunch of the “fingers” off and left shrapnel bouncing around in the engine. Since I bought it new in 2017, it was still under warranty in spring 2018, when the basket broke at about 3800 miles.

Took the bike to DucShop in GA; the replacement engine took almost 6 months to arrive, got the bike back in December 2018 with a new 2018/19 motor.

After 450 miles, dropped a valve in cylinder 1.

Back to DucShop, MV sent another engine, got the bike back in just a couple months-much faster.

That engine lasted about 100-150 miles, dropped another valve; this time, being familiar with the sound, I actually killed the engine in time to save it from being completely destroyed.

Back to DucShop; at first, MVA NA were trying to locate a head that was somewhere around here domestically, but after a couple days, didn’t like the prospect of putting a bandaid on it, so MVA sent another mill.

I’m pretty certain it got here from Italy in only a couple weeks-I think I had it back from DucShop in 3 weeks(!)

I believe that this is a 2019 motor.

It has been fine for a couple thousand miles, so I think I’m good to go.

I cannot fault MVA for the way they took care of me, they never really blinked when needing to do the expensive thing and shipping parts from Italy has really sped up.

Anyway, best of luck, I hope that you can get back on your F3 sooner than later!

King Williams

Wow that's an intense story just thinking about what you went through. This is how MV should handle their customers. Hope your bike lasts for many miles to come.

What was the root cause of the valve dropping in all those engines? Did anyone ever determine this?? I'm very curious since you had so many engines and MV granted the claims everytime.

Sent from my SM-G930V using Tapatalk

 

[sibiv59]

Where are you located? Are you doing the swap yourself or is it being done at a shop?

I am located in Dubai, UAE. The bike is at the dealers place and i would want then to do it even if the labour cost is high

 

[sibiv59]

I have a 2014 F3 675, it had the clutch basket issue, which meant the basket threw a bunch of the “fingers” off and left shrapnel bouncing around in the engine. Since I bought it new in 2017, it was still under warranty in spring 2018, when the basket broke at about 3800 miles.

Took the bike to DucShop in GA; the replacement engine took almost 6 months to arrive, got the bike back in December 2018 with a new 2018/19 motor.

After 450 miles, dropped a valve in cylinder 1.

Back to DucShop, MV sent another engine, got the bike back in just a couple months-much faster.

That engine lasted about 100-150 miles, dropped another valve; this time, being familiar with the sound, I actually killed the engine in time to save it from being completely destroyed.

Back to DucShop; at first, MVA NA were trying to locate a head that was somewhere around here domestically, but after a couple days, didn’t like the prospect of putting a bandaid on it, so MVA sent another mill.

I’m pretty certain it got here from Italy in only a couple weeks-I think I had it back from DucShop in 3 weeks(!)

I believe that this is a 2019 motor.

It has been fine for a couple thousand miles, so I think I’m good to go.

I cannot fault MVA for the way they took care of me, they never really blinked when needing to do the expensive thing and shipping parts from Italy has really sped up.

Anyway, best of luck, I hope that you can get back on your F3 sooner than later!

King Williams

If the bike is warranty, they have to support by all means. But in my case, its out of warranty and trying to get a new engine. But looking at your experience, the chance of reoccurrence of the dropped valve issue is high and MV should not put its customer in such hazardous situation.

 

[esq'z me]

@kingwilliams .... yesterday, while I was there, I asked Trevor how many 3 cylinder engines they had replaced at DucShop. Yours is the only one (although it was actually several) !!!
And they have sold and serviced more than a few ..... several of them for track bikes, like the one I posted photos of in the customization thread.
He says the 2018 and later engines have been trouble free. Your experience was truly a wild one !!!
BUT...we keep hearing theses stories on the forum.

 

[HTX_713]

So what was the reason MV denied the motor? They did an ECU dump on mine to see if I was abusing the motor. I was in 5th going 90 on a straight when my motor went out. The dealer didn’t promise anything, but I took the chance and it worked out in my favor minus labor of course. Can’t have it all I guess. What were the findings?

 

[sibiv59]

So what was the reason MV denied the motor? They did an ECU dump on mine to see if I was abusing the motor. I was in 5th going 90 on a straight when my motor went out. The dealer didn’t promise anything, but I took the chance and it worked out in my favor minus labor of course. Can’t have it all I guess. What were the findings?

In my case they mentioned saying that the engine had reved past 13500 rpm and they dint answer an of my other questions like how many times it got reved past 13500 rpm, When was last time it was reved past 13500 rpm and what was the RPM when the valve failed. But in my case it dint go well till now atleast i dint get what i expected.

 

[kingwilliams]

@kingwilliams .... yesterday, while I was there, I asked Trevor how many 3 cylinder engines they had replaced at DucShop. Yours is the only one (although it was actually several) !!!
And they have sold and serviced more than a few ..... several of them for track bikes, like the one I posted photos of in the customization thread.
He says the 2018 and later engines have been trouble free. Your experience was truly a wild one !!!
BUT...we keep hearing theses stories on the forum.

Hi, Ed!

yes, it was a truly odd situation-when I ran into the warranty manager at COTA during MotoGP 2019, to thank him for staying on top of my situation, when I introduced myself he thanked ME for letting them fix the issue and promised that it would be dealt with. Trevor and Mark always put the bike on the lift as soon as it was off my trailer to see just what the heck was going on, as they wanted to know!

i believe that the valve Issue on the first replacement engine was a keeper under the bucket that failed or the spring broke, I can’t recall, exactly.

The second replacement engine had a bad valve guide and it was maybe mentioned that a number of suspected faulty ones somehow got into a bin where the good ones were, or something like that.

It was just “my time in the barrel”, as they say, and I was glad to be so well taken care of and to help burn through the bad engines on their behalf, haha.

Cheers!

King

 

[kingwilliams]

Hi, Ed!

yes, it was a truly odd situation-when I ran into the warranty manager at COTA during MotoGP 2019, to thank him for staying on top of my situation, when I introduced myself he thanked ME for letting them fix the issue and promised that it would be dealt with. Trevor and Mark always put the bike on the lift as soon as it was off my trailer to see just what the heck was going on, as they wanted to know!

i believe that the valve Issue on the first replacement engine was a keeper under the bucket that failed or the spring broke, I can’t recall, exactly.

The second replacement engine had a bad valve guide and it was maybe mentioned that a number of suspected faulty ones somehow got into a bin where the good ones were, or something like that.

It was just “my time in the barrel”, as they say, and I was glad to be so well taken care of and to help burn through the bad engines on their behalf, haha.

Cheers!

King

OH-

And had I known about the clutch basket issue on the first engine, I would have replaced it (or had it replaced) and I’d bet that I’d still be on the first engine and have many more miles on it!

The information was percolating out there somewhere, I had just not happened upon it in time.

-K

 

[esq'z me]

And had I known about the clutch basket issue on the first engine, I would have replaced it (or had it replaced) and I’d bet that I’d still be on the first engine and have many more miles on it!

That's right...I had forgotten your first engine was the clutch basket breaking....a problem that generated a recall on all affected bikes...and NOT a valve train problem. It was the subsequent replacement engines with valve issues.