• Hi Guest! Being a Paying Supporter is NOT a requirement to participate at BCF. However, subscribing will help ensure we can continue to serve the LBC community for years to come. If you enjoy BCF and find our forum a useful resource...Please consider supporting us by **Upgrading**
    (PS: Subscribers don't see this banner)
Tips
Tips

TR4/4A TR4 rear diff pinion seal

derickson

Member
Offline
My rear differential leaks fluid (badly) past the front pinion seal. Is it possible to replace the seal without removing the differential? It seems like I should be able to drop the drive shaft, remove the cotter pin & nut, pull the shaft, and remove the oil seal. Has anyone done this before?
 

jessebogan

Jedi Knight
Offline
It is not all that hard, but space is tight. Mark EVERYTHING!!!! I count the number of exposed threads sticking out past the pinion nut, mark the flange, pinion shaft, and a flat on the nut. Everything must go back EXACTLY as it was before, or you will disturb the bearing preload, with possibly catastrophic results. Don't forget to refill the diff...

Jesse
 
OP
D

derickson

Member
Offline
what about the pinion bearing? Can it be replaced at the same time in the same manner?
 

jessebogan

Jedi Knight
Offline
No, the pinion bearings are serviced thru the rear of the case. This requires a total teardown and rebuild.
 

TR4nut

Yoda
Country flag
Offline
This came up before and I'll post the same as last time: Kurtis Jones, a member here, has a nice web resource on changing the pinion seal - might come in handy:
pinion seal replacement
Randy
 
Similar threads
Thread starter Title Forum Replies Date
Lotuswins Wanted TR4 H6 rear carb body Triumph Classifieds 4
T For Sale TR4 TR250 Rear Fenders Triumph Classifieds 2
P Wanted 1963 TR4 passenger fender rear Triumph Classifieds 2
busybrit Wanted TR4, TR4A, TR250 Rear light WANTED Triumph Classifieds 0
S TR4/4A TR4 front and rear suspension Triumph 8
Gerald_Gordon TR4/4A Routing of wiring harness to the rear of a 1961 TR4 Triumph 8
M TR4/4A TR4 with Surrey Top......Rear seat upholstery assistance please. Triumph 2
D TR4/4A Seals on TR4 Solid Rear Axle Triumph 5
Popeye TR4/4A Rear leaf spring - do I have a TR4 spring on my 4A?? Triumph 4
Got_All_4 TR4/4A TR4 Detroit Locker Positraction Rear End Triumph 6
K TR2/3/3A TR4 rear leaf spring "distance piece"? Triumph 1
M TR4/4A tr4 zip out rear window Triumph 6
B TR4/4A TR4 Rear Leaf - Do I need distance piece? Triumph 5
Willie_P TR4/4A Girling brake drums/rear innards - tr4 Triumph 6
F TR4/4A TR4 rear trim Triumph 2
Willie_P TR4/4A TR4 rear brake cyl. - what's this thingamajigger? Triumph 5
J TR4/4A Replacing TR4 rear wheel studs Triumph 2
TR4v8 TR4/4A tr4 rear axle width Triumph 0
doughairfield TR4/4A TR4 Rear Hub removal Triumph 14
M TR4/4A TR4 rear sway bar installation Triumph 15
CinneaghTR TR5/TR250 TR4/RA/250 Rear Bumper Installation Triumph 3
R TR4/4A TR4-A rear fender Triumph 12
G TR4/4A tr4 rear end in a tr3a Triumph 10
D TR4/4A TR4 - Rear wheel slot key removal Triumph 8
J TR4/4A TR4 rear suspension Triumph 8
TR4 TR4/4A Removing a rear fender on a TR4 Triumph 7
T TR4/4A Early TR4 Rear Suspension & Tube Shock Conversion Triumph 13
KVH TR4/4A TR4 Rear Wheel Studs Triumph 6
T TR4/4A Early TR4 Rear Suspension Triumph 22
6 TR4/4A Advice on stripped Rear Hub wheel stud for TR4 Triumph 24
R TR4/4A TR4 IRS coil over rear suspension Triumph 3
Tabcon TR4/4A TR4 Rear Brake Parts? Triumph 25
M TR4/4A Last question about original rear main sealTR3 TR4 Triumph 17
SCguy TR4/4A lost link... TR4 rear shock rebuild Triumph 4
Tabcon TR4/4A TR4 Rear Suspension Upgrades Triumph 15
T TR4/4A TR4 Rear Leaf Spring Mounts Triumph 6
T TR4/4A '62 TR4 rear end clunk Triumph 10
SCguy TR4/4A TR4 rear axle piece fell of into my hand? Triumph 21
KVH TR4/4A TR4 Rear End Again Triumph 4
KVH TR4/4A TR4 Rear End Again Triumph 0
PeterK TR4/4A TR4 Rear track bar pictures and info needed Triumph 6
macino62 TR4/4A TR4 rear tube shock conversion Triumph 5
KVH TR4/4A Rear Oil Galley Plug and Flywheel Bolts TR4 Triumph 6
T TR4/4A Early TR4 - Rear Leaf Springs Triumph 3
T TR4/4A Early TR4 - Rear Brake Cylinder Installation Triumph 5
T TR4/4A Early TR4 - Rear Brakes Triumph 1
T tr4-rear tube shocks Racing 2
P TR4/4A tr4 rear hub problem Triumph 16
P Wanted WTB Restorable TR4 Triumph Classifieds 3
A TR4/4A TR4 Overdrive Solenoid Triumph 19

Similar threads

Top