Re: 1998 VR4 90hp Johnson upper motor mount broke?
Its not the powerhead or anything related to that area. All was tigjt and solid. What is involved in repairing the splines?
The following is the procedure used for many years. If the design has changed whereas another procedure is needed, I'm sure the following will be corrected as needed.
All connections to the engine must be disconnected.... steering, fuel, oil, and electrical.
Have the engine supported with a hoist or support of your choice.
Remove the lower unit in order to get the shift rod out of the steering tube.
Remove the top main motor mount bolts, then remove the bottom motor mount bolts. Now, slide the engine out and away from the steering swivel bracket assembly.
Remove the large nut from the bottom of the steering tube. Now you can remove the lower motor mount housing and slide the steering tube out the top of the swivel bracket so that you can inspect the splines of both items and replace what is needed.