Elec Shift- Spring/Magnet Issue or Prop Slip?

[BLDFW]

Re: Elec Shift- Spring/Magnet Issue or Prop Slip?

Wow, didn't think the thread was dead. I believe KRH1326 got his likely culprit answered 3 times. Must not have liked what he read. Wonder how many will help him now. I know of least one that won't. Good luck!

I think he's looking for the answer he really wants by posting something in a dead thread elsewhere. Oh well, we tried.

I'm with you.

 

[rockyman]

Re: Elec Shift- Spring/Magnet Issue or Prop Slip?

i think your comment was rude and uncalled for ,besides it was not even your thread .if this is something personal between you and him you should keep it that way and not on fourm.

 

[BLDFW]

Re: Elec Shift- Spring/Magnet Issue or Prop Slip?

i think your comment was rude and uncalled for ,besides it was not even your thread .if this is something personal between you and him you should keep it that way and not on fourm.

You new on this thread?

 

[KRH1326]

Re: Elec Shift- Spring/Magnet Issue or Prop Slip?

I shouldn't have called it a dead thread. That was not fair to the OP. I meant that it was a got it, fixed it, thanks for the help, good bye type post.
No more forthcoming. I saw that Bond-O was currently cruising that post and just asked for his input. For that, I apologize. It was wrong.

Yes, I agree that it is pointing three times to a prop hub. And for that I DO LIKE WHAT I READ.

The part that I don't like is that I have been researching the issue of a shear pin prop having a breakable hub. For every person that says yes, there is a person that says no. I called the only three prop shops that I know. One says NO it has a shear pin, that is the break point. One says Yes it has a rubber breakable hub. The third, a young guy said he didn't know, and would have someone call back.

I was looking for somrthing concrete, in black and white, cut and dry on the subject, and picked the worst way to do it.

 

[Bondo]

Re: Elec Shift- Spring/Magnet Issue or Prop Slip?

It was wrong.

Ayuh,... That's an Apprecation thread to the Regular Posters here at iboats,...All of Us,...
Hardly a Dead Thread,....
I just left there,... The Reason I'm even back on this Stringer Drive thread, was to see if the quote I posted was still here, or Deleted by Don, as your original post was...

The part that I don't like is that I have been researching the issue of a shear pin prop having a breakable hub. For every person that says yes, there is a person that says no. I called the only three prop shops that I know. One says NO it has a shear pin, that is the break point. One says Yes it has a rubber breakable hub. The third, a young guy said he didn't know, and would have someone call back.

I was looking for somrthing concrete, in black and white, cut and dry on the subject

Grab a Wrench,+ Go LOOK.....

 

[BLDFW]

Re: Elec Shift- Spring/Magnet Issue or Prop Slip?

Ya gotta love those experts in dealing with 30+ year old outdrives, especially the really young ones. It's an unfortunate by product of asking a group of people what they think.

I have a third generation auto mechanic buddy that has been working on cars for probably 45 years. I get it in my head sometimes that he doesn't know what he's talking about when I give him my vehicle symptoms. It just can't be what he's saying cuz me, who HATES working on car engines but do it because I don't want to pay any to do it when I can do it myself, think I already have the answer. He gives me the right answer but I argue with him for some unknown reason only to find out he was right all along. Jeesh!! Thank god we're friends!

Anyway, at this point I think you have enough feedback to go back and figure out whether we know what we are talking about.

 

[Lyndy]

Re: Elec Shift- Spring/Magnet Issue or Prop Slip?

The part that I don't like is that I have been researching the issue of a shear pin prop having a breakable hub. For every person that says yes, there is a person that says no. I called the only three prop shops that I know. One says NO it has a shear pin, that is the break point. One says Yes it has a rubber breakable hub. The third, a young guy said he didn't know, and would have someone call back.

Well, for what it is worth before this thread I firmly believed that it did not have a rubber core. I will give into the possibility that it is hidden inside all that metal surrounding it.

 

[BLDFW]

Re: Elec Shift- Spring/Magnet Issue or Prop Slip?

Well, for what it is worth before this thread I firmly believed that it did not have a rubber core. I will give into the possibility that it is hidden inside all that metal surrounding it.

I believe all props have rubberized cores to provide some level of protection to the outdrive. The shear pin should shear but it doesn't and the shaft is a hard one to one connection, you can wreck the heck out of the outdrive gears. Very spendy. The rubber core is designed to protect the drive gears by allowing the prop shaft to shear from the rubber plug.

On the prop I bought about 3mos ago, it first did not have a shaft in it. When the shaft was installed and later proven to be the wrong one, the prop guy came out with a shaft and plug without the prop installed (pretty rude looking thing!) and fitted it to the shaft. The next time I saw the prop, it had the new shaft and plug installed.

 

[NW Redneck]

Re: Elec Shift- Spring/Magnet Issue or Prop Slip?

Your prop should have a rubber hub inside. At a quick glance it looks like it is a solid one-piece prop, but it's actually 2 pieces.

In the first pic you can just make out the separation of the inner part (with the 2 'tabs' ) that's recessed into the body of the prop. In the second pic, the part that protrudes out with the holes for the retaining pin is part of the inner piece, and you can just see a hairline gap between the 2. The rubber is pressed in between the 2 pieces and is not visible without pressing the 2 pieces apart.

 

[BLDFW]

Re: Elec Shift- Spring/Magnet Issue or Prop Slip?

Thanks for the excellent pics!! Yes, in the first pic, the discolored brown center part is the rubber plug. It's in there so tight that it looks like it's a solid surface across the back but it's actually not. The shaft is glued to the plug and is designed to let go if the prop encounters and major obstruction.

 

[KRH1326]

Re: Elec Shift- Spring/Magnet Issue or Prop Slip?

AWESOME post and pix.........

NW and BLDFW you are the man, er...the men?

That is EXACTLY what I was looking for. That is my exact prop style.

I think I can actually turn off the computer and go to bed, before I PO anyone else.

Thank You, Thank You, Thank You, Thank You

 

[Lyndy]

Re: Elec Shift- Spring/Magnet Issue or Prop Slip?

Pictures are worth a whole bunch! Thank you for posting those pictures NW REDNECK!

 

[NW Redneck]

Re: Elec Shift- Spring/Magnet Issue or Prop Slip?

Glad to help! I've gotten so much from these forums over the years so it's nice to be able to give something back. iboats rocks!

 

[KRH1326]

Re: Elec Shift- Spring/Magnet Issue or Prop Slip?

THE VERDICT IS IN..........(insert drumroll here)........

****PROP HUB****

I snuck out of work a little bit early (hope my boss doesn't read this forum) and raced down, and rowed out to my mooring.

I opened up my little shiner net and started hanging it from the skeg. A clam digger, I know and call 'dam cligger' motored by to yell what the heck was I doing. After I hollered "prop" he laughed as he motored on.

I pulled the cotter pin, cone and "shear pin"* see detail below. There was a huge washer that was stuck to the prop. I had to pry it away from the prop, and it looked like someone 'stuck' it on with black silicone. After dropping the prop into my row boat, and looking closer, I don't think it was silicone, but molten rubber that had oozed out of the prop hub. Things started looking up.

Got spare prop on, no prob, and fired up. I have a long way to go, to clear harbor and no wake zones, but right away I KNEW that something was different. At 500-600 rpm this boat had some authority that it never showed before. Things looking alot better.

Cleared the harbor, gave it some throttle, and she jumped out of the water. I had to be closing in on 3000 rpm to get on a plane, and a lazy one at that. NOW she walked right up at 2000 rpm. That damn prop must have been slipping to some degree the whole time I have been trying to get her to run good, and that last run through heavy chop must've been the end of the line.

In retrospect, I had been sort of chasing a thought around the back of my mind: Why isn't this 351W hurling this boat (even though she is a heavy one) through the water? All of the Chevy vs. Ford jokes and jabs aside, any V-8 at or above 350 CID should really have some power.

So, I am on cloud nine, and come home for some dinner.

Wife tells me that while I was out, a guy from a prop shop returned my call ( see earlier post in this thread ) and he had quite the explanation, of course this is after I sort the whole thing out.

"Those props do in fact have a rubber core. That pin is NOT a shear pin. In the OMC manuals and in all of the exploded view parts diagrams in all of the OMC suppliers (ex:Crowley Marine, Doug Russell, Marine Engine Parts, BRP etc) it is listed as "DRIVE PIN" and not shear pin. "

WOW what an answer.

Many, many thanks to all that have helped, encouraged, cheered or booed.
Thanks again.

 

[Lyndy]

Re: Elec Shift- Spring/Magnet Issue or Prop Slip?

Very happy all is well! Enjoy and don't be a stranger

 

[BLDFW]

Re: Elec Shift- Spring/Magnet Issue or Prop Slip?

I feel so.....I feel so.....validated!

Glad to hear she flies now! I have something to look forward to on my boat!

We'll see!

 

[pac city]

Re: Elec Shift- Spring/Magnet Issue or Prop Slip?

old thread, butt had same thing happen to an old johnyrude 80hp selec, set screws that hold spring to hub slipped and broke the end of spring allowing it to slip,not a hard fix ,just make shure you tighten set screws good and use locktight. note........... those props are solid, thats what the shear pins are for.