Volvo U-joint and shaft seized in motor

[MIA Ozz]

Hi can anyone help with this problem please.
I put my boat in for a service and anti foul over Christmas.
One of the stern drives needed the gimbal bearing and U-Joint to be replaced.
This should normally be a simple job, just take off the stern drive and gear box and pull out the U-Joint and shaft. But it is seized in the motor.
The mechanic has tried everything short of cutting the shaft and pulling out the motor to extract the shaft. It seams to have corroded and fused in the motor.
Can anyone help with advise to extract this. The boat has been on the hard stand for 4 weeks now and is costing me a fortune.
Any help is appreciated, thanks in advance.

 

[Bondo]

Re: Volvo U-joint and shaft seized in motor

The mechanic has tried everything short of cutting the shaft and pulling out the motor to extract the shaft. It seams to have corroded and fused in the motor.
Can anyone help with advise to extract this.

Ayuh,... Cut the shaft, 'n pull the motor....

If you'd kept up with the Normal Annual Maintanance, you wouldn't be here...
Those shafts are supposed to be Greased,... Annually....

 

[Lou C]

Re: Volvo U-joint and shaft seized in motor

I'll bet you had a leaky bellows, that occasioned the repair of the gimble and ujoints....if the drive was serviced yearly and OMC/Bombardier triple guard grease put on the driveshshaft splines, it wouldn't have seized most likely, since that grease holds up well even in salt water. I pull mine every season just for that reason and I have not had problems with corrosion....

 

[Don S]

Re: Volvo U-joint and shaft seized in motor

Which outdrive?

 

[ihorse]

Re: Volvo U-joint and shaft seized in motor

Do not cut the drive shaft and pull the motor. The correct proceedure is to cut the ujoint then remove the snap ring that holds the gimbal bearing. You can then remove the gimbal bearing with the drive shaft attached. Use a fire retardant jell on the transom shield. This will protect from falling slag when you torch the ujoint. If you have the XDP drive be carefull when removing the gimball bearing not to damage the gimbal bearing housing in the transom shield. Go slow and easy. It will take a while but it will come out.

 

[Don S]

Re: Volvo U-joint and shaft seized in motor

Why don't you guys wait to find out what drive he has first, instead of posting a bunch of information that may not even work for his drive.

The correct proceedure is to cut the ujoint then remove the snap ring that holds the gimbal bearing.

Perfect example. First of all, there is no "Correct procedure" for this problem, second ONLY the XDP drive has a snap ring, all other volvo drives do not, and all volvo drives prior to 1994 didn't even have a gimbal bearing.

 

[MIA Ozz]

Re: Volvo U-joint and shaft seized in motor

Ayuh,... Cut the shaft, 'n pull the motor....

If you'd kept up with the Normal Annual Maintanance, you wouldn't be here...
Those shafts are supposed to be Greased,... Annually....

I bought this Larson about 4 months ago and this was the first service. The bloke that I bought it from had obviously not serviced the boat for a long time.
Thanks for the advice.

 

[MIA Ozz]

Re: Volvo U-joint and shaft seized in motor

Which outdrive?

Don I am not sure of the model number of the stern drives, they are Volvo's and are. on a 1998 Larson 290 Cabrio running 2 5lt V8 volvo GI motors.

 

[MIA Ozz]

Re: Volvo U-joint and shaft seized in motor

Do not cut the drive shaft and pull the motor. The correct proceedure is to cut the ujoint then remove the snap ring that holds the gimbal bearing. You can then remove the gimbal bearing with the drive shaft attached. Use a fire retardant jell on the transom shield. This will protect from falling slag when you torch the ujoint. If you have the XDP drive be carefull when removing the gimball bearing not to damage the gimbal bearing housing in the transom shield. Go slow and easy. It will take a while but it will come
out.

The problem is getting the U-Joint out of the motor not the Gimbal bearing, this has now been done.

 

[MIA Ozz]

Re: Volvo U-joint and shaft seized in motor

Thanks for all the help. We cut the shaft and pulled the motor.
Now reinstalling.

 

[Bondo]

Re: Volvo U-joint and shaft seized in motor

Thanks for all the help. We cut the shaft and pulled the motor.
Now reinstalling.

Ayuh,... Glad to hear yer makin' headway,....

Be sure to Grease it this time, 'n annually there after....

 

[Lou C]

Re: Volvo U-joint and shaft seized in motor

and don't forget to use this on the splines of the driveshaft....

 

[foretopman]

Re: Volvo U-joint and shaft seized in motor

The problem is getting the U-Joint out of the motor not the Gimbal bearing, this has now been done.

This is what I made and used successfully on my 280 with the same problem. I removed the upper gear unit as far as I could, strapped the bellows and got it out of my way, then I hammered out the outermost ujoint bearings and "cross piece"and placed the puller over the u joint and ran a large (3/4 ) ratchet extention thru the "intermediate section" of the joint and the small holes in the body of the puller, placed the 2 curved plates on the surface of the clamping ring and turned the two all-thread rods so they contacted the plates ( saving any damage to the clamping ring)and it came right out- I did get a few snapping sounds as it worked out, but I saved the shaft, and would have saved the bearings except they were already worn. I replaced the grease cup in the "bell housing" so I could grease the bearing after installing a new one (thats another project- the threads are metric and I found a metric zerk at a fastenal store).

 

[Don S]

Re: Volvo U-joint and shaft seized in motor

Completely different kind of outdrive and how it fits onto the engine foretopman