400 Verado propshaft breakage

[Trimmed Out15]

At least you had a nice view on the tow in

[JPEROG]

Rumor is that Mercury has the solution for this problem and its solution is close to being in production. These are really expensive warranty claims for them to deal with.

Joe

[AZMIDLYF]

These breaks generally occur when coming up on plane?

[JPEROG]

They know Paul on a first name basis. How many of the props have you been able to recover?

Joe

[WILDMAN]

I broke two on 300XS's and one on a 400. Two broke getting on plane and one broke 15 seconds after.

[JPEROG]

I don't think that there is going to be welds in the future and this problem should go away. Think of how much this has cost nation wide over the years-it must be a big total $$. Once again we are lucky to have Mercury backing us up on these issues and losses.

Joe

[baja200merk]

I broke a fat shaft between the forward and reverse gear. Some how didn’t lose the prop but it managed to trash everything in the case. The pinion nut fell out in two pieces behind the carrier also mushroomed the end of the driveshaft .

[Capt.Insane-o]

Yay, love that warm and fuzzy feeling especially when I turned out a dozen of these things this spring.

[baja200merk]

I have 5 to build. 3 are small shaft 1 is another of mine. Apparently they had a bad run of 3.0 stuff maybe the same happened with verado

[CUDA]

A little non destructive testing goes a long way .

[Capt.Insane-o]

I have 5 to build. 3 are small shaft 1 is another of mine. Apparently they had a bad run of 3.0 stuff maybe the same happened with verado

If they're not catching on fire the props are falling off.

[NICE PAIR]

Is anybody building bullet proof prop shafts for 300XS Sporty's ?

[baja200merk]

I’ve broken 2 carriers in two different cases one 2.5 one 3.0. Switched all 3 of mine to billet from mad efi.com now. Some of these guys ride around with 36+p props (jperog) and have had no issues with carrier. Every improvement can save your weekend especially when your 80 miles from the ramp getting lunch.

[conmax]

Haven’t revisited this thread in awhile. There have been more posts so the failures must be continuing.
When I dropped off my 28 a couple of weeks ago, a rigger told
me he had another failure on a 27 that he was testing. Merc told him to use Max 5 instead of CNC because they cavitate more while planning. All his failures have occurred during planning. Most have covered lost props. In at least one case they did not because they had told the customer not to run CNC anymore and he did.

[Hot Shot Merc]