Prop shaft coupling re-use.

[dmontzsta]

How many times do you guys re-use them?
I am having a hell of a time getting my shaft out this time. I dont want to keep splitting the coupling, cause I was thinking I would re-use it. The damn thing is only a couple years old.
Are you supposed to re-use them?
I certainly dont want to make it a safety issue by splitting it too much. If I cant get it off I am going to break the damn thing and buy a new one.
Any tricks?

[WILDERTHANU]

The coupler?? Don how are you splitting it?? Unscrew two of the blots and thread them in holes that are made for just that. They only thread one half, making it easy to push the coupler appart.

[EXTREMEBOATS]

Are you useing the spreader bolt? If so you will have a hard time doing any damage. If the one you have is in good shape I wouldnt replace it. But I have seen them beat to hell and pry marks because they didnt know what they were doing. Not saying your not... just from years of dealing with this stuff.
Mike :cry:

[dmontzsta]

I took out all 4 allen screws and the two on the sides, the thing has no screws in it at all. Last time I did that it slid right out. What I do is put a junk 3 blade on that I never use and hammer it from the back and the shaft usually slides out the back, but not this time. I have even been soaking the coupling in oil for a few days.

[EXTREMEBOATS]

Most have a threaded hole on the other side that you put bolts back in and they push it open. Look again and it might have them.
Mike :confused:

[dmontzsta]

I will have to check it out tommorrow.
It is just the standard duty steel one from Rex.

[Rexone]

I will have to check it out tommorrow.
It is just the standard duty steel one from Rex.
If that's the 242114 coupler it should have one reverse spreader hole right in the center. Put one of the bolts in and apply some pressure and it should come right off. As far as replacing, not necessary unless some kind of damage. btw if you have alot of HP you shouldn't be using that small coupler, just a heads up. It isn't designed for big power.

[dmontzsta]

If that's the 242114 coupler it should have one reverse spreader hole right in the center. Put one of the bolts in and apply some pressure and it should come right off. As far as replacing, not necessary unless some kind of damage. btw if you have alot of HP you shouldn't be using that small coupler, just a heads up. It isn't designed for big power.
I dont have alot of HP, yet...what do you recommend for 650hp range? the 6 bolt collar? it is going to be tight to get a safety collar on this boat, I may just have to run one underneath.

[Rexone]

I dont have alot of HP, yet...what do you recommend for 650hp range? the 6 bolt collar? it is going to be tight to get a safety collar on this boat, I may just have to run one underneath.
Yes 650 hp should not be running the small coupler IMO.

[lucky]

If that's the 242114 coupler it should have one reverse spreader hole right in the center. Put one of the bolts in and apply some pressure and it should come right off. As far as replacing, not necessary unless some kind of damage. btw if you have alot of HP you shouldn't be using that small coupler, just a heads up. It isn't designed for big power.
74 cc is border line big mike !

[Sanger D]

I dont have alot of HP, yet...what do you recommend for 650hp range? the 6 bolt collar? it is going to be tight to get a safety collar on this boat, I may just have to run one underneath........................................ .............I run my safety coller underneath,works out fine,don,t have much room up top cause I put a bitchin 6 bolt from beaver fab,JJ,s got some cool stainless ones,I would,nt put the lil 4 bolt one back on!!!! :squiggle: put a little anti seize on the shafts next time too,helps alot :D ask rex if he has the tappered collers that go right before the strut!!

[dmontzsta]

.................................................. ..I run my safety coller underneath,works out fine,don,t have much room up top cause I put a bitchin 6 bolt from beaver fab,JJ,s got some cool stainless ones,I would,nt put the lil 4 bolt one back on!!!! :squiggle: put a little anti seize on the shafts next time too,helps alot :D ask rex if he has the tappered collers that go right before the strut!!
Are those the ones that look like a bullet? I dont think he has those, but Glenwood does for like $10. I ran a safety collar there (regular one) for around 8 years and didnt notice a difference, at most you might lose 1-2mph I think and boat motors run too cold anyways. I dont think a little oxygen in the water is going to hurt.

[Cole Man II]

Does anyone one know how the stainless coupler stacks up to the regular steel or aluminum coupler strength wise? Assuming all three are the 6 bolt.

[Speedin' Ian]

Not disagreeing with anyone, but when I installed my new coupler I used a little anti-sieze, however my dad didn't feel to comfortable about it and called a few different people with a lot more experience and they told us not to do it.

[Sanger D]

but I use just a litte itty bit and it helps the coupler to slide off and NOT seize on the prop shaft( if you have the stainlees coup.)allways use it when stainless goes to stainless,( so,s been my exsperience)

[EXTREMEBOATS]

Bear in mind, most prop shafts and V-Drive out put shafts are "STAKED". In other words after the coupler is tightened the allen set screws are removed and a "Dimple" is made in the shafts with a drill bit. Making a recess for the allen set screw to lock in. Helping in suport so the prop shaft under decellaration does not slip. And with the added suport of a coller helps ensure it does not slip. Antisieze should not effect the performance of the mechanical clamping of the coller. One more thought, Use the strongest coupler you can and remove all doubt. Just my opinion for what its worth...Mike :idea:

[GofastRacer]

Not disagreeing with anyone, but when I installed my new coupler I used a little anti-sieze, however my dad didn't feel to comfortable about it and called a few different people with a lot more experience and they told us not to do it.
You don't put anything on the coupler, just tighen it the right way and it will never slide off!.. :cool:

[GofastRacer]

allways use it when stainless goes to stainless,( so,s been my exsperience)
That applies to stainless nuts and bolts, I use moly grease instaed of antisieze, not so messy!.. :smile:

[meaniam]

i never really had a problem taking them off but only did it 3 times. putting it on this time was a bitch. dont know why but did use spreader bolt didnt work to good twisted bolt stainless bolts. thank god i got them back out. hell with as hard as it was to put on i dought it will come off easy. the heavier the hammer the more convincing power. it make for a great tenison relief if you dont plan on keeping them. hell i looked for burs and everything clean just didnt want to split open. you what we say about the tighter the hole..... :2purples:

[GofastRacer]

i never really had a problem taking them off but only did it 3 times. putting it on this time was a bitch. dont know why but did use spreader bolt didnt work to good twisted bolt stainless bolts. thank god i got them back out. hell with as hard as it was to put on i dought it will come off easy. the heavier the hammer the more convincing power. it make for a great tenison relief if you dont plan on keeping them. hell i looked for burs and everything clean just didnt want to split open. you what we say about the tighter the hole..... :2purples:
Should have used a grade 8 bolt, stainless is too soft!.

[meaniam]

Should have used a grade 8 bolt, stainless is too soft!.
found that out thank god i didnt have to speed time fixin my mistake. saw it twist...no i mean felt it suddenly get loose. i knew what was up then backed it up got it out.then did it agian thought hell its not much needed to split them. as i was cranking with a cheater bar
mike

[Rexone]

good advice from Art there. Also Never use stainless bolts In The Coupler. They break!. Use Grade 8 or better... always... on all driveline related stuff including drivelines and PTO flanges. Another place to never use stainless is in control arms, snap em right off.

[EXTREMEBOATS]

:argue: I have put couplers on dry and with non stick stuff and never had a "OOOPPPSSS" Lucky I guess... And no I hope you did'nt think I was encouraging the use of S/S hardware on such high stress componants. But I learned years ago about the meaning and need for thr right bolts in the right place... :cry: Mike

[FOURQ]

How many times do you guys re-use them?
I am having a hell of a time getting my shaft out this time. I dont want to keep splitting the coupling, cause I was thinking I would re-use it. The damn thing is only a couple years old.
Are you supposed to re-use them?
I certainly dont want to make it a safety issue by splitting it too much. If I cant get it off I am going to break the damn thing and buy a new one.
Any tricks?
leave it to the jetboat guys to have it out in 10 min. :D ...ohh and in one useable piece too just to find it in my trash can later lmao..
Q

[dmontzsta]

leave it to the jetboat guys to have it out in 10 min. :D ...ohh and in one useable piece too just to find it in my trash can later lmao..
Q
:D I was going to buy a new one. But I guess you arent a jetboat guy, more of a "boat guy". ;)