Spring 1989

Welcome to the Spring 1989 issue of Moss Motoring. Immerse yourself in a vast range of stories that range from personal profiles, to technical advice, and more. We promise it’s a ride worth your while. Browse the articles below.

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Archimedes-Type Rear Crankshaft Seals

Perhaps the most annoying source of oil leaks in older British sports car engines is the mechanical oil slinger/seal arrangement designed as the primary rear crankshaft seal. The theory of this archimedes-principle seal, is that the spiral grooves at the back of the crank fit with only a slight clearance to the stationary upper and lower…


Tech Tips: Spring 1989

Pilot Bushing Removal The crankshaft pilot bushing, or spigot bearing for you anglophiles, is the bush that is pressed into a recess in the rear of the crankshaft, and which locates the transmission’s mainshaft. Although the factory workshop manual for the TR4 calls for its removal by threading the bush with a tap, screwing in…


MGB Rear Axle Clunk

The tube type rear axles fitted to all MGB GTs and MGB Roadsters since 1967 are notoriously prone to developing an annoying clunk after as few as 50,000 miles. The proper rectification of this problem can easily be completed in a few hours and should cost less than $20.00 in parts. Before giving us a…


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