• 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)

MGB SU CARB OIL 1965 mgb


Luke Skywalker
Country flag
How do you establish the need to add oil? If the damper is working, and you can test by lifting the piston, you don't need oil.
Remember, as arson as you start up after filling, surplus oil will be lost.


Great Pumpkin
Country flag
The level of oil should only get to the top of the piston's oil chamber, not filled to the top of the whole tube. And account for the displacement of the brass dampers' volume as well. Any oil beyond the top of the piston's chamber tube will get sucked into the intake.

Hastily drawn and disproportionate, but should get the idea across:



Great Pumpkin
Country flag
Has this issue been resolved? Waiting for a response...
Similar threads
Thread starter Title Forum Replies Date
AUSMHLY Oil in rear carb Austin Healey 33
RAC68 Carb Oil Cap Loosens Austin Healey 5
T Oil leaks under carb are - tappet inspection plate Spridgets 6
T Breather Tube - Oil dumping in air filter and carb Austin Healey 30
SkinnedKnuckles Question about AH 3000 carb damper oil Austin Healey 21
58Custom How often should carb damper oil need topping up? Spridgets 4
tahoe healey Carb damper oil Austin Healey 6
T Carb Dashpot Oil Level Spridgets 6
George Zeck Carb Oil & Stalling Issues .... Spridgets 4
A Oil leaking from ZS carb Triumph 5
George Zeck Carb Oil ??? Spridgets 5
tahoe healey Oil in the back carb Austin Healey 6
G Carb oil leaks out MG 8
S Carb Float Levers Austin Healey 6
R TR6 Throttle/Carb issues 73 TR-6 Triumph 36
D TR2/3/3A Another Carb question. Triumph 22
K TR2/3/3A Dist vacuum pipe to carb..... Triumph 5
M TR2/3/3A Paltech SU Carb Rebuild--Problem Triumph 3
RGK TR5/TR250 SU carb ID help Triumph 6
Healey Nut Tri-Carb Throttle Controls Austin Healey 4
jlaird MGB V6 carb help MG 14
71TR6 TR2/3/3A TR3A SU Carb rebuild opinions requested Triumph 12
Michael Oritt SU H6 carb for Le Mans--order of assembly of fuel bowl lid Austin Healey 2
D Tri carb: order of installation question. Austin Healey 5
Lotuswins Wanted TR4 H6 rear carb body Triumph Classifieds 4
E MGB SU carb air cleaners MG 10
Healey Nut Tri-Carb Project Austin Healey 47
doc50 For Sale Zenith carb, fits many cars. Other British Classifieds 0
tahoe healey Dumb carb question Austin Healey 23
jfarris TR2/3/3A Happy with my Paltech Carb rebuild Triumph 7
2 TR2/3/3A SU carb. Acts like an expansion valve ! Triumph 10
dbenichou289 TR2/3/3A SU carb linkages Triumph 2
CLB62 1962 BT7 Tri-Carb for sale on BaT Austin Healey 2
O HD8 carb on Healey 3000 Austin Healey 62
dbenichou289 TR2/3/3A Carb Sealing Ring Triumph 6
R TR2/3/3A Carb throttle return spring tension Triumph 2
drooartz MGB Troubleshooting Mikune carb MG 33
T TR6 TR6 Carb Gasket Sealing Triumph 1
HealeyPassion AH Carb Access panel Austin Healey 24
P Carb Help - Car idle slows and dies after being run for a while Austin Healey 14
Michael Oritt SU H6 carb question Austin Healey 5
T TR6 Carb. Float Chamber Fix Triumph 5
Editor_Reid H6 Carb Mounting Austin Healey 4
T TR6 Carb Vacuum Port- TR6 Zenith-Stromberg Carbs Triumph 2
K TR2/3/3A S U Carb Chambers and Pistons Triumph 1
K TR2/3/3A Auxillary Carb Return Spring in More BS about TR's. Triumph 0
M Heat-related carb issue on BN1 Austin Healey 7
pbraun For Sale Weber downdraft Carb & manifold Spridgets Classified 3
P BJ7 HS6 Carb Baseline Setting Austin Healey 10
Patrick67BJ8 HD8 Carb Repair Austin Healey 15

Similar threads