• 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

TR2/3/3A More TR3 Trunnion Questions

Share this page

K

karls59tr

Obi Wan
Bronze
Country flag
Offline
When assembling the the trunnion to the vertical link....how much of a gap should you end up with where they meet at the seal?...the way it seems now the seal is kind of flapping around rather than being slightly compressed. I cold almost turn the trunnion another turn but the brass stop casting slightly hits the vertical link. Being an aftermarket trunnion I'm wondering if it should go one more turn and then backed off?....the casting could be lightly filed to accomplish this. Also the manual says" screw trunnion home without forcing and then turn back one complete turn,and then positioned so that the shackle pin lies parallel to the body of the car,but inwards,between the base of the vertical link and the chassis frame as the shackle pin is offset." What is the shackle pin and what exactly are they getting at here? Any advice on this welcome. Karl
 
TR4nut

TR4nut

Yoda
Country flag
Offline
Karl-

Reading that part of the manual has me scratching my head too, but I thought the shackle pin was basically the threaded rod part of the trunnion that connected to the a arms. Should be parallel to the frame, but the rest of it has lost me.

Randy
 
Moseso

Moseso

Jedi Knight
Country flag
Offline
All they have to do is operate freely through the 28-1/2 deg (front lock) to 31 deg (back lock) range of turning that they do. If they bind on the thread before those points, they need to be screwed out one turn.

The "shackle pin" is the pin that will carry the lower A arms. They are telling you that the vertical link is offset towards the outside of the car, and the shackle pin is offset towards the center of the car, relative to each other. There is also the boss where the steering stop adjustment screws on. It is towards the center of the car, if you've got the trunnion on right.
 
TR4nut

TR4nut

Yoda
Country flag
Offline
I know there were old stories of some issues with Triumph build quality occassionally, but it does surprise me they have to spell out which way to put on the trunnion!

Randy
 
TR3driver

TR3driver

Great Pumpkin - R.I.P
Offline
:iagree:

The seal should inflate a little when you get some grease in, so I'd say "flapping around" is correct.
 
Similar threads
Thread starter Title Forum Replies Date
Tinkerman TR2/3/3A 1960 TR3 A More body panel assembly questions. Triumph 5
TomMull TR2/3/3A TR3 pushrods; Nothing seems simple any more Triumph 2
M TR2/3/3A One more steering question TR3 Triumph 4
T TR2/3/3A more ? on the TR3 deck lid Triumph 6
A TR2/3/3A More TR3 Rear main seal problems. Please Help!! Triumph 8
O TR2/3/3A More TR3 Qusstions Triumph 2
Tr3aguy TR2/3/3A I wish I had more room,,,,,TR3 Triumph 9
K TR2/3/3A More TR3 SU Rebuild Questions. Triumph 11
N TR2/3/3A TR3 the neverending search for more torque and HP Triumph 4
S TR2/3/3A One more tr3 gas tank? Triumph 1
ekamm TR2/3/3A more tr3 interior questions Triumph 5
K TR2/3/3A More on Spark Plugs for TR3 Triumph 2
K TR2/3/3A TR3 Rear Bush Replace Pic from More BS aboutTR's Triumph 5
C TR2/3/3A More TR3 cooling ideas Triumph 4
T TR2/3/3A Once more with feeling, adjusting oil pressure TR3 Triumph 4
Alan_Myers TR2/3/3A TR3 project FS [actually two cars & more: $6750] Triumph 11
Bayless More Prefect Progress Other British Cars 2
B MGB while driving engine cuts out if I let off or push more throttle it comes right back on MG 5
C MGB More Weber help needed MG 27
DrEntropy More lessons in Japanese engineering Other Cars 7
KVH General Tech More Technical Questions—TR4 Triumph 5
KVH General Tech Heater and Vent Control Cables--TR2 thru TR4, and more . . . Triumph 3
KVH General Tech More Engine Rebuild Questions Triumph 15
AngliaGT A Few More Spotted 6
AngliaGT Saw a Few More Spotted 0
Bob Claffie More Village pics Other British Cars 0
Bob Claffie More Village pics Other Cars 3
M TR6 More noob questions… Triumph 14
Bayless More Paint Other British Cars 3
AngliaGT A Few More Local Vehicles Spotted 5
Basil More BMW Z4 trials Other Cars 21
AngliaGT A Few More I saw Yesterday Spotted 10
SteveTheBrewer Spitfire More rust repair Triumph 1
AngliaGT A Few More along Highway 220 Spotted 3
Bob Claffie More pics from Falls Village Festival Other British Cars 3
Sherlock Another cruise night, more interesting British iron Spotted 2
Y MGB More things that seem odd.... MG 2
D TR2/3/3A More Fuel pump questions. Triumph 10
jlaird MGB More on Bee's status MG 6
AngliaGT A Couple More Spotted 0
tr6nitjulius TR6 TR6 meeting my Demands & Giving Back more! Triumph 2
tr6web TR6 More leg room needed Triumph 5
Got_All_4 For Sale Brake caliper pistons Ceramic Coated and more Triumph Classifieds 0
Nelson No more MG Midgets Spridgets 3
HealeyPassion Getting a bit more space for triple Webers... or EFI Austin Healey 3
K TR2/3/3A Auxillary Carb Return Spring in More BS about TR's. Triumph 0
K TR2/3/3A More pics of Kast Cam Triumph 4
K TR2/3/3A TR3A SU's More Pics Triumph 0
Ripper01 For Sale more TR-6 Used Parts Oct 2019 Triumph Classifieds 0
lbcspinners A- H Frog E: no more Bugeye oil leaks! Austin Healey 4

Similar threads

Top