• 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

Rebuilding front end

tonegod

Freshman Member
Offline
Need some suggestions for you experts that hopefull have done this before. I have a pretty bad shake in the front end of my 57 tr3. Most of it has been from the front wheels (slight bend) and am thinking about doing some more to the front end. and suggestion on where to start? I am not cash poor, but I do need to watch my finances abit.

thanks in advance

Jack
 

MDCanaday

Jedi Knight
Offline
There are some many places to find a problem in the fr sus of a tr3 that a small book could be written. Let me hit the top 3 to look at first.
Upper control arm bushings are likely shot...
Iddler arm is bady worn......
kudgen pins are toast......
To save money on an iddler assy consider this fix. remove&clean it, note that the shaft is threaded, and has the arm welded to it by 2 tack welds on the top of it.Use your handy bench grinder to remove these welds. Now the shaft can be turned and lowered as needed to acheieve good contact with the threaded housing, deeper into it, where the threads are still as new. Now that the assy is test assembled and tight, re-weld the arm (carefully) and you are ready to lube and go back together
MD( mad dog)
 

MGTF1250Dave

Jedi Knight
Silver
Country flag
Offline
Aloha Jack,

As Mad Dog implied there are a several potential problem areas. If you have eliminated tires and wheels as a cause of the vibration then you can start looking for worn steering parts and front end suspension.

The steering mechanism, cam and peg follower and the bushings in the steering box wear particularly if not regularly lubricated. The peg that rides in the cam groove wears down and steering gets sloppy. There is an adjusting bolt to press the peg dowm but eventually you run out of adjustment.

Worn tie rod ends will cause play in the steering. The idler arm fulcrum pins are in a rubber bushing that perishes and also causes this play. Jack up the front end of the car and if you turn the steering wheel without wheel movement or up push one tire to the side and the other doesn't move, you have worn steering parts. By movement I mean more than 1/8 turn of the steering wheel and maybe a 1/2 inch of side to side movement of the wheels.

The front end suspension has several rubber bushings for the upper and lower wishbones. These wearout over time and make it near impossible to keep the front end in alignment. If you are going to replace these parts, I would recommend you use polyurethane bushings instead of rubber. These are available from most Triumph parts suppliers. They will not deform or perish like the rubber bits. While you have it apart, check the ball joints and shocks to see if they need to be replaced. If in doubt, I'd say replace them.

This may be more work than you were considering, but if this type of work has not been done in the last 10 years or so, it's probably past due.

Safety Fast,
Dave
 

MDCanaday

Jedi Knight
Offline
TFDave brought to mind a little trick for taking out steering play on the worm&peg box used by TR3's and T MG's. It doesnt cure shake but gives tighter steering for FREE.
With the box apart and a new bushing and seal installed(best case scenerio) examine the arm and the peg that actually fits into the wormgear. You will doubtless note that this peg is worn on its contact points(flatspots) This litle guy is only lightly pressed into the arm, tap it out carefully, turn it 90 degrees and re-install it.
While this doesnt help the wear on the worm itself
it lets you get a LOT better adj. when you set the lash bolt. This gets rid of 80 to 90% of the play in the steeringear box.
Want to make it stop leaking oil too??? Pack the lower part of the box around the shaft with the heaviest greese you can find, up to the worm gear. now add a mix of 90wt and STP.(OK its stiff in the dead of winter so am I)This will work wonders and be the LAST time you have to mess with this piece of archane engineering.
MD( mad dog)
 
Similar threads
Thread starter Title Forum Replies Date
K TR2/3/3A Rebuilding a TR3A front end Triumph 2
G Rebuilding Front Seats Austin Healey 4
sim Rebuilding Front Suspension 58 sprite spring question Spridgets 6
JFeher TR2/3/3A TR3 Type "A" front brake caliper rebuilding Triumph 17
tomshobby Rebuilding the front suspension. Spridgets 2
T Thinking of rebuilding my front suspension Triumph 6
vping Rebuilding front Swivels MG 14
S rebuilding front brake calipers Triumph 9
S TR2/3/3A Rebuilding a cylinder head Triumph 10
S TR2/3/3A Rebuilding a tr3 transmission and second gear, Triumph 57
S TR2/3/3A when rebuilding a differential Triumph 9
M TR2/3/3A Rebuilding suspension Triumph 29
E TR6 Rebuilding Distributor Triumph 2
JMACENGINESHOP BJ7 Engine Rebuilding Austin Healey 23
S TR2/3/3A Engine Rebuilding. Triumph 14
L MGB Rebuilding a 1977 MGB MG 1
S TR2/3/3A Rebuilding the early tr3 starter Triumph 5
Joel Lester TR2/3/3A What type of valve to use when rebuilding the head? Triumph 10
KVH General Tech Rebuilding the Engine Triumph 5
K TR2/3/3A Rebuilding an Engine?..New Cam Sprocket & Gear...1/2 Price Triumph 0
drooartz Rebuilding rear axle Spridgets 19
T Rebuilding a 1275 for a BE Spridgets 8
pkmh Rebuilding Armstrong Lever Shocks on a BJ8 Austin Healey 28
steveg Steering rocker shaft - chemical rebuilding Austin Healey 3
steveg Rebuilding roadster windshield Austin Healey 24
A Rebuilding Tiger window regulator question Sunbeam (Rootes) 3
S TR2/3/3A Rebuilding Dr2 Lucas wiper motor Triumph 16
S TR2/3/3A rebuilding bomb nose starter Triumph 9
W Looking for engine rebuilding 100-6 Austin Healey 12
KVH General Tech Rebuilding the Engine--a few practice pointers [for me] Triumph 11
R TR2/3/3A Rebuilding H4 carbs Triumph 8
S TR2/3/3A rebuilding door panels Triumph 15
Rut TR4/4A Seat rebuilding Triumph 3
steveg Rebuilding the Dip Switch Austin Healey 9
Tinkerman TR2/3/3A Rebuilding SU carbs 1960 TR3A Triumph 3
Rut TR4/4A Seat rebuilding Triumph 6
CZ_Dave MGB Is it worth doing the Shock Conversion Kit or Rebuilding Exsisting shocks? MG 16
JFeher TR2/3/3A Rebuilding A type OD I Need advise / measurements Triumph 14
KVH TR4/4A Engine rebuilding Triumph 17
gbtr6 TR6 Rebuilding TR6 Engine, Tips? Triumph 7
pbraun Anyone have a 1275 core for rebuilding? Spridgets 8
Got_All_4 TR2/3/3A Continually Rebuilding of my J Type Gear Box Triumph 2
drooartz MGB-GT Rebuilding the seats MG 28
Gray_Cat MGB Rebuilding MGB Overdrive MG 4
S TR2/3/3A rebuilding a tr3 water pump Triumph 22
Lin Rebuilding a master cylinder for BT7 Austin Healey 3
PatGalvin TR2/3/3A Guide for SU Rebuilding Triumph 8
H TR4/4A 4A convertible top rebuilding sequence Triumph 8
Lukens TR2/3/3A More questions about rebuilding my steering box Triumph 20
charleyf TR4/4A Hs6 carb rebuilding Triumph 8

Similar threads

Top