1967 Triumph TR4A Specification and History
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1967 Triumph TR4A |
The main differences are; Independent Rear Suspension (hence the IRS badge on the boot lid), walnut veneer dash and the handbrake was moved to the top of the transmission tunnel, instead of in the footwell next to the driver's left leg.
It is fitted with the Surrey Top, which consists of a rigid rear window with removable roof panel and separate soft-top and frame.
The engine was the same 4 cylinder 2,138 cc engine as in the earlier TR2s and TR3s, but with a revised head and exhaust, giving slightly more power. This is a slow revving engine with lots of torque and an agricultural feel (not surprising as it was derived from a Massey Ferguson tractor engine). The manual gearbox has synchromesh on all four gears and is fitted with overdrive that works on 2nd, 3rd and 4th gears effectively giving it 7 gears.
Production:
TR4a - from January 1965 to 1967 - 28,465. Price when new - £1200 approx.
Steel chassis with steel body bolted on separately. All four wings bolt on to the inner wings. History of RWP 400F:
Owned from new by one man, Ken Westwood. It was featured in the Bill Piggott book Original TR, and the David Hodges book, Essential TR. Since we acquired it at the end of 1998, the body panels have been dismantled, some minor rust damage repaired and the car has been re-sprayed in its original Royal Blue. The interior (still in its original midnight blue) has been cleaned. The brakes and suspension have been overhauled. The engine is still original and has done over 130,000 miles - hence the apparently low mileage, as it has been round the clock once!
To avoid the problem of the dynamo not charging properly at idle speeds, or when under high electrical load (like using lights and wipers in the rain), in 2003 we replaced it with an alternator which now produces more than enough electrical power. The gearbox, overdrive and differential were rebuilt in 2005.
Technical:

