AT THE HEART OF THE ROAD TRANSPORT INDUSTRY.

Call our Sales Team on 0208 912 2120

ROADSIDE AND GARAGE.

6th December 1921
Page 31
Page 31, 6th December 1921 — ROADSIDE AND GARAGE.
Close
Noticed an error?
If you've noticed an error in this article please click here to report it so we can fix it.

Which of the following most accurately describes the problem?

A Page for Drivers, Mechanics and Foremen.

Repairing a Leaking Water Pump.

The sender of the following communication has been awarded the extra payment of Ss. this week.

(2325) " G.W.H." (StOurport) writes : —" The accompanying sketch shows an efficient method of preventing leakage from the water pump of a well-known

type of engine. ft consists of a setscrew and lock-nut, the former being screwed into the inlet branch of the pump in such a manner that the setscrew can be made to bear on the end of the pump shaft, thus holding the pump impeller up against the opposite face of the pump body. A fibre washer should be imposed between the pump' body and the impeller, and preferably/ a second one should be tucked away-4 inside the pump gland."

Removing and Replacing Studs

(2326) " H.A.B." (Rotherham) writes: —“ The manipulation of studs always calls for care, and the following hints may he of use to a few readers who have not had the benefit of workshop training,

"Whenever a new stud is being fitted into a hole which has a dead end hat is to say, hole which has no outlet— it is necessary as a preliminary that a groove be cut in the side of the stud to the depth of the thread (see sketch). This allows air to escape when the stud is being fitted. When fitting studs that require to hold pressure, it ia as well just to rub a little red lead into the threads before putting the screw into place. An appropriate tool for removing a stud may be made in the following manner :—

"Take a piece of square or hexagon mild steel, drill it right through, and tap it to suit the particular size of stud with which you are about to deal. Pro

cure a setscrew of the same size and long enough to enable it tos penetrate halfWay through this hexagon or square block before the head comes into contact with the surface of the block. A slot should be cut in the end of the -setscrew, and for purposes of removal a corresponding lip may be Med/ on the stud. When about to withdraw the stud, screw the block right on to it until the top of the stud emerges, then engage the slot on the setscrew with the lip on the stud, and screw the block back until' it engages with the collar of the setscrew. Continued movement of the block will then withdraw the stud.

" For fitting a stud a similar tool may be used except that the setscrew, instead Of having a slot, will has, a rounded end."

A Couple of Spanners.

(2327) " E. W." (We,stminsteS writes : —" The aecompaning sketches /show a couple of spanners which will be found very useful in connection with inaccessible work, such as the holding-down

nuts of cylinders, particularly those which are on the valve side. These nuts have frequently to be tightened up with blunt chisel, which is not by any means a method to be recommended.

" One of the sketches shows what is known as a ring spanner. If, however, instead of, as is usual, just making a hexagon hole in the ring it he cut so that there are 12 serrations, then it will enable a nut to be tightened up very firmly, as only a small amount of movement is required as between one serration and another. This type of spanner is particularly strong, as there is no gap, as is usually the ease; but, instead, the nut is surrounded by a complete ring of metal. Owing to this the size of the head of the spanner can be reduced, which is again an advantage when tackling inaccessible nuts. The material from which it can best be made is a piece of spring steel.

"The other is a small type of boxspanner. A bar of steel serves as a handle, and near one end is secured a setscrew of the same size and type as those nuts with which the spanner is intended to deal. A short piece of box spanner is used between this and the actual nut, and it will generally be found preferable to braze this box spanner to the head of the setscrew.

"Both of these spanners may, of course, be modified in order to meet. unusual circumstances. For instance, it will sometimes be found advantageous to bend' tho spanner handles 0100 way or another in order to increase their value for getting at inaccessible nuts "

Lamps Alight. .

Tags


comments powered by Disqus