Offshoreonly.com - Engine coupler replacment poll...

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- - Engine coupler replacment poll... (https://www.offshoreonly.com/forums/general-q/98538-engine-coupler-replacment-poll.html)

hillbilly24

03-18-2005 10:18 PM

Re: Engine coupler replacment poll...

Quote:

Originally Posted by jadento

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?

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.

hillbilly24

03-18-2005 10:23 PM

Re: Engine coupler replacment poll...

Quote:

Originally Posted by kilroy

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!!!

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.

Ran-Dom 32

03-20-2005 09:25 AM

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??

Ran-Dom 32

03-21-2005 11:02 AM

Re: Engine coupler replacment poll...

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

Ran-Dom 32

03-23-2005 08:59 AM

Re: Engine coupler replacment poll...

1 Attachment(s)

can anyone tell condition by simply looking @ it?

hillbilly24

03-23-2005 09:38 AM

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

Ran-Dom 32

03-23-2005 01:47 PM

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 $$

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