92 OMC 7.4 King Cobra

[seph510]

Are there any tricks to removing the water inlet seal from the transom mount? Mine is all there, but I’d like to remove it to see if I can rehabilitate it a bit. Don’t want to damage it and it doesn’t seem interested in coming out.

 

[seph510]

How do I remove this without destroying it? This seal is listed as no longer available

 

[Bondo]

Ayuh,..... Welcome Aboard,..... It don't look bad, why fuss with something that ain't bad, that can't be replaced,..??

 

[seph510]

Well, I figured out how to remove it, but I took your advice and left it in place. Went back to doing battle with removing the Gimbal bearing. Guess who won? Next battle is installing the new bearing. Couple of pics, not too bad for a 27 year old boat. It’s a 91, not 92, I was mistaken earlier. Title says 92 but the engine is 100% a 91

 

[seph510]

This ain’t that much fun in the Texas heat

 

[Bondo]

This ain’t that much fun in the Texas heat

Ayuh,.... but not quite as bad as grindin' fiberglass in a heat wave,....

 

[seph510]

Installed the new gimbal bearing. Got the outdrive as far as about 1inch of the splines engaged. I know that from the grease that was displaced from the splines. I believe the outdrive is refusing to go in any further because the new seals are hanging up on the bearing.
Suggestions?

 

[Bondo]

I believe the outdrive is refusing to go in any further because the new seals are hanging up on the bearing.

Ayuh,..... What did the alignment bar say 'bout that,..??

Do ya mean the o-rings that ride under the bearin',..??
Did ya Slather 'em with grease,..??

 

[HT32BSX115]

It’s a 91, not 92, I was mistaken earlier. Title says 92 but the engine is 100% a 91

I think you may have broken the "Code" !!

This is why we always ask for the eng/drive package model number. Boat manufacturers FREQUENTLY use last years model engine and drive in their boats!

And if you're buying a new boat, it's worth asking what year engine and drive is in your "New" boat because you may want either last years or this years model!

Many of the sales people have no idea what they're selling! ........OR, they're telling you how great this years model is (and are selling you last years model and they know it!!!)

 

[seph510]

Guess I’m gonna get blasted for this, but I don’t have the alignment tool. Manual says I need #912273 but I haven’t located that specific part # anywhere. I see plenty of the Volvo/Mercruiser/OMC Cobra alignment tools available, but the part # is completely different and they never reference King Cobra. Are those alignment tools compatible??? They look different than the one decent picture I have from the manual. Specifically, the manual picture shows the end of the tool is splined and the available alignment tools are not splined.

Yes, I was referring to the O-rings. No, there was zero grease on the O-rings, just clean oil. Greased the splines, oiled the O-rings and was

When I bought the new gimbal bearing, I made sure it fit the shaft and it slid into place using only my hands, but that was when the old O-rings were still on the shaft. The old O-rings were flat as a pancake. The fit was tight, no slop, but I could get the bearing on and off the shaft with my hands. The new O-rings are definitely raised ever so slightly, but since the fit was tight to begin with I was thinking that just that slight difference was enough to stop me.

Clearly my answer is to get the alignment tool. Are the available ones compatible?

 

[HT32BSX115]

When I bought the new gimbal bearing, I made sure it fit the shaft and it slid into place using only my hands, but that was when the old O-rings were still on the shaft. The old O-rings were flat as a pancake. The fit was tight, no slop, but I could get the bearing on and off the shaft with my hands. The new O-rings are definitely raised ever so slightly, but since the fit was tight to begin with I was thinking that just that slight difference was enough to stop me.

Clearly my answer is to get the alignment tool. Are the available ones compatible?

I would say yes. The following gimbal bearing will fit any sterndrive newer than 74.

[h=1]Gimbal Bearing Mercruiser OMC Cobra Volvo SX 30-60794A4 3853807[/h] Part #: GLM21905 [h=2]$36.95[/h]

So if the above gimbal bearing will fit, any "Mercruiser/Volvo" alignment tool fits too.

No alignment tool should be splined either

 

[seph510]

Great, Thank You.

Attached is the photo I was referring to from the manual

 

[HT32BSX115]

Great, Thank You.

Attached is the photo I was referring to from the manual

Yeah, I think that is possibly a misrepresentation in the book itself (they're not perfect even if OEM!!)

People have tried using a regular yoke to align with pretty bad results. You NEVER want a splined shaft for alignment and can get far more accurate alignment with a NON-splined shaft.

I made my own on a lathe using the dimension found here: https://forums.iboats.com/forum/engi...alignment-tool

 

[seph510]

Understood, thanks again.

 

[seph510]

The answer to this question turned out to be “Engine Alignment”. Found a local guy that knew what he was doing and he came to my house. We used the alignment tool and he had me adjust the forward engine mounts. Apparently they moved some over 27 years. Made the adjustments and the outdrive went in like butter.
His advice was never, never, never touch the rear engine mounts.