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Thread: Yep.....
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08-19-2019, 04:20 PM #16
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08-19-2019, 05:26 PM #17The Historic Photo Master
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08-19-2019, 07:36 PM #18Screaming And Flying!
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Weak point in surfacing prop..... a cut/grove...un/ sported......the rear bearing and front.....with a cut mid way on the propshaft........
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08-19-2019, 09:28 PM #196000 RPM
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I wont lie... I was like... "just some unburt taste oil mix laying in the bullet.... oh **** never mind" lol
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08-19-2019, 09:54 PM #20
Holy &&^% WT^&**&*%& Doug is wayyyyy to good-ah people for Mother Merc to be sendin him parts out of the "blem-ventory" parts bin ..
Chaz = thinkin I can friction weld better than that ...
No .. wait , I take that back. Thats some dumb azz engineer that can't weld's way of puttin a carbon and stainless shaft together without the Mega-V out an using 309 as a filler rod and then turning it down to size and dinkin it back straight the last .0002 .... by hand
Look at that POS ... stuck with ... >
Had to use clear, cuz there ain't no rippin or tearin on the end of the shaft like Godzilla took a bite out of if .. like a normal shaft looks like when it gets chicken boned ... Pathetic
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08-20-2019, 07:25 AM #21
Chaz mother mercury has sent me a lot of bad parts during this 3 year project. It is getting really old, So old i went and bought a johnson hat hoping it would bring me better luck.
Just a little Cat.
24 Twister V8 E-Rude (For Sale)
2008 Concept Sport Deck 2x 300X
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08-20-2019, 09:51 AM #22
Chaz = thinking, If "you" broke it, it should look more like this, than the "break" be as smooth as a baby's bottom ..
Let me know if you get one of your hook-ups in Detroit to hob some out of 300M ..
Got CheezeBurger .. Still LMAO
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08-20-2019, 04:31 PM #23Screaming And Flying!
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Now that's a Fat shaft......
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08-21-2019, 07:22 AM #24
So this brings up the question. I know that there were problems with these shafts, was it in the 400R's? I recall seeing a video from an aftermarket guy who was machining a single piece shaft. Has Mercury solved the problem in new production? Do they use these on the 300R?
Per Rock:
"Once I bought my first Hydrostream boating changed forever for me."
Per my hero Instigator:
"I try not to let common sense interfere w/my boat buying decisions."
Pat Gent
cell 954-249-3246
'78 Hydrostream Vandal (being rebuilt)
'86 21' Eliminator Daytona, 300 OMC V-8 (Li'l Toy III)
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08-21-2019, 08:54 AM #25
I didn't want you to have to put your glasses on ...
Li'l Toy
So this brings up the question. I know that there were problems with these shafts, was it in the 400R's? I recall seeing a video from an aftermarket guy who was machining a single piece shaft. Has Mercury solved the problem in new production? Do they use these on the 300R?
Pat, I'm sure Merc is aware of "their" serious problem. I doubt dealers let alone the public will ever see a service bulletin on this issue . Or if, when and how it is/was dealt with. The key will be if the shafts survive the 450R / fairly big hull / loose nut behind the wheel situation.
If the answer is yes they have, applying the same technology to to the remaining run of 2.5-3.0L fat-shafts .. Pppfffttt .. I get the general feeling they would rather not be bothered.
The Az. shafts, I've heard good and bad. So I have no first hand experience to offer.
However, between up where Doug is at with the Motor City area @ his disposal , and us with so many shops that provide parts to the entire Pratt , Sikorsky , Rocket Dyne complex .. I'm sure it won't be cheap, but I have no doubt it can be fixed better than the factory effort.
On a personal note ... have you ridden in the side car yet .. ?
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08-21-2019, 09:13 AM #26
What intrigues me a bit after years of $500+ prop shafts, $900+drive shafts are these $150 fat shafts....dunno...maybe it's just me...but it's really a son of a bitch losing a big dollar propeller to a $150 propshaft.
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JrCRXHF liked this post
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08-21-2019, 02:33 PM #27
Are those 400Rs? My buddy had a new Eliminator 27 Speedster made, twin 400Rs. Test, sea trial- break in, learn handling in Havasu last year late spring. The towed up (WA Puget Sound) here. In the water after new floater boat lift made and in the slip. Well, end of August after normal lots of fun fast boating, takes a break just off shore one are many small islands here. Fired up, in gear and "something wrong". Yep, same damn thing happened, as "where the damn prop and shaft go? I wasn't with him, but told me all this. Well, back they knew just about where the prop had to be (as NOT CHEAP) and we have some tides swings of 15-20 feet bottom on the Sound. Lost it at high tide and found it at low tide. Shaft let go at the Friction Weld. Nice and smooth. Still under warranty so off the Merc.
Merc said fix for free, or for (some amount money, never told me) would upgrade to newer Lowers. Well, had enough sunk into boat as is, so.."just fix it". So far so good this year. 114 so far MPH (with TWO props that is..)Last edited by Robby321; 08-21-2019 at 08:42 PM.
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08-21-2019, 08:53 PM #28
And even though been a welder since in the Service 50 years ago, this is new chit to me as be simple to do one SS shaft, and quit the crap.
And welding SS to carbon steel....no comment as to old for this BS..
"Friction welding is not the same as fusion welding.
-Fusion welding is a generic term for welding processes. It's the heating of metal to a molten state to conjoin other metals typically with similar compositions. Some examples of fusion welding are SMAW, GTAW, MIG, conduction welding and oxyfuel welding.
-Friction welding is a solid state welding process where heat is generated by friction and then pressure is applied to fuse the metals. Because there's no melting, it's not classified as fusion welding."
Also heres a pic a 70's D/S short shaft Merc inline 6 lower...in salt after a good clean up after 2 YEARS! Wasn't greased...
Last edited by Robby321; 08-21-2019 at 08:56 PM.