Engine coupler replacment poll...
 

While you have your engine(s) out to replace or rebuild do you worry about replacing the coupler(s) between the flywheel and your outdrive?

Re: Engine coupler replacment poll...
 

HD all the way!
Cp performance has them also Marc at BAM.
Dual springs.

Re: Engine coupler replacment poll...
 

I would do it. It is not a good feeling for that to let go at 10 at night. :rolleyes:

Re: Engine coupler replacment poll...
 

Only if it needs it.
Why replace a perfectly good coupler just for the sake of replacing it?

But if it does show questionable, then by all means. Standard for normal applications.

Re: Engine coupler replacment poll...
 

If you have one w/aluminum splines they should be replaced no matter what because they sometimes strip suddenly with no real warning,Smitty

Re: Engine coupler replacment poll...
 

jadento, do you still have your 27 Baja? Just curious.

If you have the opportunity to change the coupler out, I would go ahead and do so.

Re: Engine coupler replacment poll...
 

Been there... and although it did happen suddenly, I was running the piss out of it in some rough water the previous two hours of running time. :eek: :D :D :D

Re: Engine coupler replacment poll...
 

Sydwayz,
Nope, I sold it. I miss having my own boat alot, but I get out pretty much whenever I want on friends boats. Kinda nice not having a payment and still getting to be out there.

Re: Engine coupler replacment poll...
 

I did this last spring after I stripped one out, I replace both at the same time with the HD's and there is a huge diff. You won't go wrong getting the HD's!!!

Re: Engine coupler replacment poll...
 

I have heard the extra thickness/depth of the HD couplers spline makes engine to drive alignment even more crutial. I.E. if it isn't correct the splines wear worse or faster? Is this true?

Re: Engine coupler replacment poll...
 

Yes it is becuase the further back from the crankshafo you get the more exagerated the angle becomes. Whatever the case is though proper engine alignment is crucial. You know it's right when you can move the alignment tool in and out with one finger.

Re: Engine coupler replacment poll...
 

The HD couplers are actually more prone to seperation(spinning) the splines are stronger and longer but the aluminum hub in the standard coupler diapates heat much better. until the HD coupler came out coupler seperation was rare now it is getting pretty common, For a low HP set up the best way to go is a standard coupler and proper engine alignement. The alignment need to be checked at the 100 hour service becuase stringers and transoms can settle and change things. this is also a good chance to lube the hell out of the splines(the grease fittings on the coupler are a joke to get to. bottom line is a properly maintaned standard coupler in Low HP app. is the best way to go and will be trouble free.

Re: Engine coupler replacment poll...
 

what is the cost of a new coupler? standard vs HD? I'm about to reinstall my rebuild hp500's & I'm wondering if I should replace them now??

Re: Engine coupler replacment poll...
 

does anyone know if the HP 500 comes with a HD coupler - &/or same as a 502MPI ??

Re: Engine coupler replacment poll...
 

can anyone tell condition by simply looking @ it?

Re: Engine coupler replacment poll...
 

that ones still in pretty good shape, what you are looking for is the shape of the splines. when they get real thin and pointy is when you have problems

Re: Engine coupler replacment poll...
 

I'm going to go ahead & reuse them - @ $300 plus a crack I'll take a chance. (I don't have to pay someone to change them.) besides I'm broke from the rebuilds $$