• The Roadster Factory Recovery Fund - Friends, as you may have heard, The Roadster Factory, a respected British Car Parts business in PA, suffered a total loss in a fire on Christmas Day. Read about it, discuss or ask questions >> HERE. The Triumph Register of America is sponsoring a fund raiser to help TRF get back on their feet. If you can help, vist >> their GoFundMe page.
  • Hey there Guest!
    If you enjoy BCF and find our forum a useful resource, if you appreciate not having ads pop up all over the place and you want to ensure we can stay online - Please consider supporting with an "optional" low-cost annual subscription.
    **Upgrade Now**
    (PS: Subscribers don't see this UGLY banner)
Tips
Tips

Oil leaking from the Tachometer cable

ejws

Freshman Member
Country flag
Offline
Hi all,


Wintertime has started, so it is time to chase for oil leaks...
In my BT7, I noticed drips of oil on the connection of the tachometer cable to the distributor and tachometer housing (AEC685).


TachoCable.jpg
For sure, the fibre washer (Nr. 29; 2K4970) was not leaking, so I suspect the oil seal (No.30; 3H964) in the tach pinion bush (No.28; AEC701).


Overview.PNG


After removing tach pinion bush, I had two questions:
1.) How do I easily remove the oil seal retaining ring (No.31; 1G340)?
2.) How should a new seal be mounted? Flat side to the outside world or to the tachometer pinion?


image0.jpg
Oil seal (No.30).PNG

Note that the retaining ring has been pressed fully into the tach pinion bush and that the aluminium plate in the tacho drive cable was screwed tightly against the bush.
Next time I mount these together, I will use an additional fibre washer to overcome irregularities in edges of the two pieces.


Note 2: The picture of the oil seal originates from AHSpares.

Best regards,
Erik
 

Healey Nut

Luke Skywalker
Country flag
Offline
You will need to remove the whole tach drive assembly from the distributor and push the seal out from the back side once you have removed the pinion gear . Install the new seal the same way the old one came out .
 
OP
E

ejws

Freshman Member
Country flag
Offline
Hi 'Healey Nut',


Maybe I don't get it, but how can you push out a seal via a shaft that has the same diameter as the inner diameter of the seal?
Note that the pinion gear axis (27) is sealed by this seal (30).

At the other end, the seal is locked up by the oil seal retaining ring. There is no ribbon in which I can peek a hook.

So, the only possibility I saw, was using a hook and try to rip the seal apart and get it out is parts. Than I might use the hook (or maybe two hooks) to pull the ring out.
But I was hoping for smarter and less destructive options...

Up till now, I received variants on following recommendation:
+ Make a rod that just fits. Glue it with loctite 638 on the ring. Wait a day. (Heat up the brass housing a bit.) Pull it out.
Finally heat up the rod to make the glue fluid again and remove the ring.


Maybe I should go ahead with that one.
 

Madflyer

Jedi Knight
Country flag
Offline
What about buying a new cable seems like a lot of work over an easy swap of cables. Just asking .Madflyer
 

Healey Nut

Luke Skywalker
Country flag
Offline
Hi 'Healey Nut',


Maybe I don't get it, but how can you push out a seal via a shaft that has the same diameter as the inner diameter of the seal?
Note that the pinion gear axis (27) is sealed by this seal (30).

At the other end, the seal is locked up by the oil seal retaining ring. There is no ribbon in which I can peek a hook.

So, the only possibility I saw, was using a hook and try to rip the seal apart and get it out is parts. Than I might use the hook (or maybe two hooks) to pull the ring out.
But I was hoping for smarter and less destructive options...

Up till now, I received variants on following recommendation:
+ Make a rod that just fits. Glue it with loctite 638 on the ring. Wait a day. (Heat up the brass housing a bit.) Pull it out.
Finally heat up the rod to make the glue fluid again and remove the ring.


Maybe I should go ahead with that one.

Ok let’s try this again . With the whole tach drive removed from the distributor . Slide out the pinion gear . Now you have a hole to slide a skinny rod into from the gear end of the tach drive to push out the retainer ring and seal . You are going to destroy the seal and maybe even damage the retainer ring .
Rebuild in reverse order without damaging new parts , reinstall drive and enjoy .
 
Similar threads
Thread starter Title Forum Replies Date
T TR4/4A Tr4A oil leaking from timing cover Triumph 13
B TR6 Oil pressure gauge-oil leaking behind the glass Triumph 2
D Overdrive Leaking Oil Austin Healey 4
KVH TR4/4A Oil Pressure Banjo Nut is Leaking Triumph 6
Michael Oritt Leaking oil pan Racing 8
F More oil leaking...rear seal? Triumph 3
TRclassic3 TR6 TR6 Leaking oil gallery plug Triumph 5
Coyote1 Carbs leaking oil Triumph 8
N BJ8 steering box leaking oil Austin Healey 11
mountainman TR2/3/3A TR3 Leaking oil pan Triumph 17
M Leaking oil and fire hazard Triumph 11
Nelson Leaking oil pump?? Spridgets 24
bighealeysource oil leaking from engine side covers Austin Healey 25
Nelson New 5-speed leaking oil Spridgets 10
S TR2/3/3A tr3 Shock oil leaking Triumph 2
T 1500 oil pressure gauge leaking Spridgets 6
B Help to replace 3000 leaking rear axle oil seal ? Austin Healey 25
R oil leaking from new trany with redline syth oil Spridgets 15
bigjones Brake drum leaking differential oil Spridgets 29
T More leaking mineral oil from my 1989 xj6 Jaguar 9
Sopwith_Camel leaking oil in new countrys! Spridgets 6
Got_All_4 ADD ON OIL FILTER LEAKING AGAIN! Triumph 12
AUSMHLY Rear Axle leaking from oil seal dust cover Austin Healey 58
Woodie rear oil seal leaking Spridgets 11
A Oil leaking from ZS carb Triumph 5
O Leaking Oil around dipstick British Motor Corp 5
1 TR2/3/3A TR2/3 Oil Leak Where Oil Sending Pipe Connects to the Block Triumph 4
Jim_Gruber Correct Transmission Oil for Datsun 210 5-speed Spridgets 1
af3683 TR2/3/3A Recommended Oil Filter Cartridge for Purolator Triumph 8
R oil pressure Spridgets 2
RickPA Overdrive Oil Pressure Austin Healey 8
6 Valve Oil Seals Spridgets 10
RJS TR4/4A Smiths Oil Temp Gauge Triumph 11
J MGB Oil Pressure Gauge Gives Constant Reading -- Doesn't Seem Right MG 15
Lotuswins Dry Spin-On Oil Filter Austin Healey 14
Todd78d Oil Spridgets 6
Erica General MG Oil Drain Valve -- mine is an MGB, but they have others MG 3
G Right-Side Shock Weeping Oil Austin Healey 1
scottkilpatrick TR4/4A Gear oil and choke question Triumph 4
D TR2/3/3A cylinder head oil plug bolt size Triumph 6
G High Oil Pressure Austin Healey 2
T Spin-On Oil Filters for Cars with a Brake Servo Austin Healey 3
Bayless What oil for Datsun 5 speed? Spridgets 7
T Spin-On Oil Filters Anti-Drain Back Valves Austin Healey 0
T Spin-On Oil Filters Austin Healey 1
K TR2/3/3A Old school penetrating oil? Triumph 24
R TR6 question re: Engine Oil Triumph 3
nevets Spin-On Oil Filter Adaptor Austin Healey 12
D Overdrive Stops Working After Oil Change Austin Healey 26
AUSMHLY BJ8 Differential Oil Change Austin Healey 6

Similar threads

Top