Adjust shift cable without pulling off my lower unit? UPDATE-part name and method?

LAC_STS

Master Chief Petty Officer
Joined
Jul 1, 2010
Messages
895
Re: Adjust shift cable without pulling off my lower unit? UPDATE-part name and method

While we are throwing links out there.

BRP Parts

More diagrams and the place to go if you need parts, part numbers, etc.
 

Lakes84

Petty Officer 1st Class
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Aug 28, 2011
Messages
253
Re: Adjust shift cable without pulling off my lower unit? UPDATE-part name and method

Oh wow, pictures I can actually SEE! I wish I had this the first time around. Thank you.

+2......Thank you all of you who contributed to this thread. I agree it should be book marked some how.
 

projo198

Petty Officer 1st Class
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Jul 7, 2012
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Re: Adjust shift cable without pulling off my lower unit? UPDATE-part name and method


Yep, that's what I found too. Plan on ordering next week.

I am surprised no one had posted the dimensions here so people can make their own. With OMC out of business and since it's an OMC part # there is no copywrite infringement, correct?
 

bruceb58

Supreme Mariner
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Mar 5, 2006
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30,796
Re: Adjust shift cable without pulling off my lower unit? UPDATE-part name and method

Yep, that's what I found too. Plan on ordering next week.

I am surprised no one had posted the dimensions here so people can make their own. With OMC out of business and since it's an OMC part # there is no copywrite infringement, correct?
Those are the ones Reinell-BRXL-191 made and is posting on Ebay. Personally I would spend the couple extra bucks for the metal ones on Amazon for $99.
 

Boats-A-lots

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Jul 22, 2012
Messages
366
Re: Adjust shift cable without pulling off my lower unit? UPDATE-part name and method

Before some one at OMC designed that tool, Im sure they used a square. Its a matter of making sure the bellcrank is at 90 degrees. Personally, I'm not a fan of these tools, or the outrageous price that comes with them. I use a square, and just take my time.
 

projo198

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Re: Adjust shift cable without pulling off my lower unit? UPDATE-part name and method

Before some one at OMC designed that tool, Im sure they used a square. Its a matter of making sure the bellcrank is at 90 degrees. Personally, I'm not a fan of these tools, or the outrageous price that comes with them. I use a square, and just take my time.

I used a square the first time, but now I just want some dummy-proof peace of mind.
 

Reinell-BRXL-191

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Apr 18, 2012
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295
Re: Adjust shift cable without pulling off my lower unit? UPDATE-part name and method

Yep, that's what I found too. Plan on ordering next week.

I am surprised no one had posted the dimensions here so people can make their own. With OMC out of business and since it's an OMC part # there is no copywrite infringement, correct?

You can't copyright a dimension.. that would be like telling someone that they can't make a 5/8th wrench.. and as far as the metal ones go, I really don't see spending 50+ dollars more to do the same job.. the cell cast acrylic ones are laser cut, and will hold both dimensions perfectly. I know a lot of people have went without these tools, just because 100 dollars plus shipping is just too much.. No one wants to pay more for the tool than the actual part it installs... I have used these tools to install my own shift cable.. and they work great...

I am not going out of my way to sell them. I made them to help out the community.. I have over 30K invested in the machines that make these.. and believe me, we are at almost zero profit, these tools were just a after thought, because we own a boat that needed them, and it seems the number one complaint with the OMC drives is the shift cable... Our boat is 21 years old and runs and shifts like it is brand new.. and we think everyone should be able to afford the tools needed to make it work...
 

Boats-A-lots

Petty Officer 1st Class
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Jul 22, 2012
Messages
366
Re: Adjust shift cable without pulling off my lower unit? UPDATE-part name and method

You can't copyright a dimension.. that would be like telling someone that they can't make a 5/8th wrench.. and as far as the metal ones go, I really don't see spending 50+ dollars more to do the same job.. the cell cast acrylic ones are laser cut, and will hold both dimensions perfectly. I know a lot of people have went without these tools, just because 100 dollars plus shipping is just too much.. No one wants to pay more for the tool than the actual part it installs... I have used these tools to install my own shift cable.. and they work great...

I am not going out of my way to sell them. I made them to help out the community.. I have over 30K invested in the machines that make these.. and believe me, we are at almost zero profit, these tools were just a after thought, because we own a boat that needed them, and it seems the number one complaint with the OMC drives is the shift cable... Our boat is 21 years old and runs and shifts like it is brand new.. and we think everyone should be able to afford the tools needed to make it work...

At the price your selling them for, it would be worth it, with free shipping it takes at least 5 bucks off the price too. Kudos for making them and selling them, I think it's an awesome idea.
 

Lakes84

Petty Officer 1st Class
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Aug 28, 2011
Messages
253
Re: Adjust shift cable without pulling off my lower unit? UPDATE-part name and method

I know I'll be purchasing a set next week...I have an awesome marine mechanic, but he doesn't do the OMC's,:eek: He's installing a brand new 4.3 for me, so I'm buying the tools, so I know it's done right;)
 

MRS

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Jul 10, 2005
Messages
2,580
Re: Adjust shift cable without pulling off my lower unit? UPDATE-part name and method

I have done mine three times 1st when got boat cable was bad 2nd used square to get 90deg.s did not get the order right in adjustment did what yours is doing. 3rd time got the right tools and was so easy after doing 3rd time and shifts like butter now the trunnion is not preset. If you do the settings on the linkage at the motor first and do not move then do your 90degs. you will be good to go the trunnion has to be set at 6-1/2" just throwing this out been there done this I did follow the hasting setup. Not trying to start anything just showing what did work for me. Plus does your motor side linkage look like what is in the e-bay links. http://forums.iboats.com/showthread.php?t=532964&highlight=shift+cable+tools Most seem to make job way harder than it has to be.
 

bruceb58

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Joined
Mar 5, 2006
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30,796
Re: Adjust shift cable without pulling off my lower unit? UPDATE-part name and method

I have done mine three times 1st when got boat cable was bad 2nd used square to get 90deg.s did not get the order right in adjustment did what yours is doing. 3rd time got the right tools and was so easy after doing 3rd time and shifts like butter now the trunnion is not preset. If you do the settings on the linkage at the motor first and do not move then do your 90degs. you will be good to go the trunnion has to be set at 6-1/2" just throwing this out been there done this I did follow the hasting setup. Not trying to start anything just showing what did work for me. Plus does your motor side linkage look like what is in the e-bay links. http://forums.iboats.com/showthread.php?t=532964&highlight=shift+cable+tools Most seem to make job way harder than it has to be.
^^^^^^^^ +1
MRS has a very good write up on doing the shift cable. Should be a sticky on the OMC page.
 

Reinell-BRXL-191

Petty Officer 1st Class
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Apr 18, 2012
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295
Re: Adjust shift cable without pulling off my lower unit? UPDATE-part name and method

The only concern I see with MRS's write up, is he is changing the original critical dimensions called for by OMC. The measurement he says is 7-5/8th - this is not the dimension that is to be used.. the required measurement from the center of the shift pin hole to the edge of the brass cable fitting is 7-9/16th +/- 1/32nd - if measured from the front of the 1/8 nut the measurement is 7-7/16th +/- 1/32nd

Now, I understand that even though these dimensions are called "critical" by OMC - there is enough slack in the cable guide slot to shift lever roller, as to completely outreaches the 1/32nd slop allowed when setting these dimension. but the difference from 9/16 to 5/8 would be considerable in a miscalculation. I have no idea where MRS got this dimension, unless he was measuring a improperly machined cable length tool. By using 5/8th as a starting point, your 1/32nd slop is gone. If you over reach 5/8th by the allowed 1/32 slop - you are now 1/16th wrong... which is outside the "critical" dimension...

Once again, I stress, that there is enough slop in the moving parts of this system to way outreach these critical dimensions.. but OMC does call for 7-9/16th, and all original tools were made with this dimension.

The current aluminum tools have too much slop in the nut slot (wow that sounds bad) and I believe that is where MRS has gotten the additional 1/32nd - but I think if he measures from the rear of the front pegs on his tool, he will find a true dimension of 7-7/16th, and with the addition of the 1/8th nut thickness - it is truly a 7-9/16th dimension - and of course, never ever, measure from the end of a tape measure, always start at 1" and add an additional inch to your length - there can be up to a 1/16 of slop in the end of the measuring tape.

omcdimension.jpg

THIS GRAPHIC IS TAKEN FROM A "POST-FAILURE" OMC MANUAL - CALLING FOR 7-9/16TH
 

bruceb58

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Mar 5, 2006
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Re: Adjust shift cable without pulling off my lower unit? UPDATE-part name and method

Of course by using the jig, this measurement is basically done for you correct?
 

Reinell-BRXL-191

Petty Officer 1st Class
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295
Re: Adjust shift cable without pulling off my lower unit? UPDATE-part name and method

Of course by using the jig, this measurement is basically done for you correct?

If the jig is made correctly... Yes.. But you have to remember Bruce, people are making these jigs out of wood and other materials... Heck, some are having a friend hold it there with a ruler... so, if the dimension they are given is wrong to begin with... the chance for error increases dramatically with the use of home made tools and measuring devices...

So I am wondering why the difference in measurements between the 2 manuals.. both appear to be the same type of OMC manual? Was a particular measurement superseded, or did the dimension of the nut change from older cable to newer cable?

MRS, can you verify a dimension of 7-7/16th from the rear of first pegs on your tool? This would actually be the critical dimension - because it is what holds the length, not the rear pegs. If you notice, you will see that the dimension that MRS is using, comes from a manual that was distributed before the "tools" - which also means that manual was pre-failure letter...

Since that document comes from the infamous Hastings site, I would think the post-failure docs calling for the use of the tools and the "new" dimension should be posted there.. not the old documents using the failure dimension, which OMC discarded when the recall on the original shift cable happened.

I never paid attention until now, it appears that the most recommended site for setting the cable length is using the "failure" dimension.. and we have all pumped this site to people wanting info...

Here is the post-failure OMC service maual
http://www.midnight-wolf.com/Cobra_Shift_Cable_Install.pdf
 

bruceb58

Supreme Mariner
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Mar 5, 2006
Messages
30,796
Re: Adjust shift cable without pulling off my lower unit? UPDATE-part name and method

If the jig is made correctly... Yes.. But you have to remember Bruce, people are making these jigs out of wood and other materials
I am assuming it is with a purchased jig.

My manual also states 7 9/16" but its a manual from the early 90s.
 
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