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OMC 400/800 rebuilt ball gear shaft parts with video

Rebuild your intermediate housing ball gear shaft

Basic OMC 400/800 Stringer intermediate ball gear repair $246.00 *You'll need to send us your drive shaft for this repair job*

Includes all labor (see below), disassembly, inspecting and cleaning/refurbishing parts. A new ball gear, plug, o ring, retainer seals and nut then installed in the re-assembly of the unit. If any additional bearings or a new unit is required, the replacement parts are added on top of the basic repair cost. Please contact us if you will be sending your parts in to have the ball gear replaced.

Repair step photos listed below

OMC intermediate ball gear shaft repair
OMC intermediate repair

Intermediate drive shaft repair (includes new ball gear) $246.15

Remove old oil seals
Remove old oil seals

Old ball gear is removed, follow by retainer. The back to back oil seals are then removed.

Remove gasket compound
Remove gasket compound

Gasket compound is removed from the retainer

Sandblast retainer

Sandblast retainer

The retainer is then sandblasted down to the aluminum

Fill in pitted section
Fill in pitted section

Any pitting is filled in

Polish retainer
Polish retainer

The inside area of the retainer is polished

680 Loctite retaining compound
680 Loctite retaining compound
 
Add 680 Loctite
Add 680 Loctite

Loctite retaining compound is added to the inside the of the retainer to ensure the oil seal is seated correctly

Second coat if .030 required
Second coat if .030 required
 
Install oil seal
Install oil seal
 
Install second oil seal
Install second oil seal

Oil seals are installed back to back

Zinc Chromate primer
Zinc Chromate primer
 
Zinc Chromate two coats
Zinc Chromate two coats

2 coats of zinc chromate primer are used

Both oil seals installed
Both oil seals installed
 
Lacquer two coats
Lacquer two coats
 
C6
C6
 
Polish old oil seal area
Polish old oil seal area

The section where the old oil seals were installed is cleaned and polished

Polish taper area
Polish taper area

The tapered area of the shaft before the threaded end is polished

Wire brush thread
Wire brush thread

Threaded area is cleaned with a wire brush to ensure lock nut will thread on smoothly

Place 680 on drive shaft
Place 680
 
New ball gear
New ball gear
 
Place 680 on taper
Place 680 on taper
 
Place oil in seals
Place oil in seals
 
 Note oil both seals
Note oil both seals
 
Install ball gear in retainer
Install ball gear in retainer

Ball gear is installed into retainer

Check spring on oil seals
Check spring on oil seals
 
248 Loctite threads
248 Loctite threads
 
Press shaft on ball gear
Press ball gear

Ball gear is pressed onto the splined end

Note 248 Loctite on nut
Note 248 Loctite on nut

Loctite 248 thread lock is installed onto the threads before the lock nut is installed

90 pounds
Turn nut on 90 pounds

Nut is torqued to correct specs

Add 515 flange sealant
Add 515 flange sealant
 
Loctite 515 on nut area

Loctite 515 on nut area

Flange sealant (Loctite 515) is used to prepare for cap installation

Place plug and turn to seal

Place plug and turn to seal

Cap is installed onto ball gear, which covers and protects the locknut

Press in plug.

Press in plug.

 
Remove 515 Loctite on plug

Remove 515 Loctite on plug

 
Lacquer two coats on plug

Lacquer two coats on plug

 
Add gasket compound to o-ring both sides

Add gasket compound to o-ring both sides

 
Pack and ship FedEx

Pack and ship FedEx